Commit Graph

1637 Commits

Author SHA1 Message Date
Eric Christopher 12ff9528b2 Handle different sized wchar_t for windows.
llvm-svn: 136192
2011-07-26 23:56:49 +00:00
Eric Christopher 99c3638935 Use the correct definition for memset.
llvm-svn: 136188
2011-07-26 23:44:22 +00:00
Eric Christopher fde54ab8b5 Make this darwin only to simplify the padding calculations per arch.
llvm-svn: 136185
2011-07-26 23:39:23 +00:00
Eric Christopher 8f95f425aa This appears to be passing on all hosts.
llvm-svn: 136182
2011-07-26 23:26:00 +00:00
Eric Christopher ebc113d1d3 Try a little hack to fix the memset duplication on windows.
llvm-svn: 136179
2011-07-26 23:18:10 +00:00
Eric Christopher 9688a17bff Try harder to fix these for windows.
llvm-svn: 136177
2011-07-26 23:12:06 +00:00
Eric Christopher 28f8189866 Generalize for various build bots.
llvm-svn: 136173
2011-07-26 22:52:35 +00:00
Eric Christopher 19520147fc Rewrite match line to be friendlier to misc buildbots.
llvm-svn: 136169
2011-07-26 22:44:31 +00:00
Eric Christopher cf2ea54160 Rewrite matching line to be friendlier to misc buildbots.
llvm-svn: 136168
2011-07-26 22:43:37 +00:00
Eric Christopher f883941903 Attempt to rewrite the matching for this test to pacify the windows
build bots.

llvm-svn: 136166
2011-07-26 22:42:01 +00:00
Eric Christopher 970fa44d70 Rework the match here to silence release mode windows buildbots.
llvm-svn: 136164
2011-07-26 22:32:44 +00:00
Eric Christopher 738c7ef5bb Attempt to generalize this test for release mode buildbots.
llvm-svn: 136163
2011-07-26 22:31:33 +00:00
Eric Christopher 4a8bc43083 Try to generalize the match to quiet the windows build bot.
llvm-svn: 136162
2011-07-26 22:27:01 +00:00
Eric Christopher aee57b4948 Use unsigned long long for uint64_t. Fixes part of the windows buildbot.
llvm-svn: 136160
2011-07-26 22:19:01 +00:00
Eric Christopher 85e5156598 Migrate most of the rest of test/FrontendC from llvm and migrate
most of them to FileCheck.

llvm-svn: 136159
2011-07-26 22:17:02 +00:00
Eric Christopher 2dfed48cae Adjust check for release mode.
llvm-svn: 136158
2011-07-26 22:07:13 +00:00
Eric Christopher e70ea8b806 Migrate:
CodeGen/2003-08-21-WideString.c
       CodeGen/2003-10-02-UnionLValueError.c
       CodeGen/2004-02-20-Builtins.c
       CodeGen/2008-01-04-WideBitfield.c
       CodeGen/2002-07-14-MiscTests3.c
       CodeGen/2005-04-09-ComplexOps.c
       CodeGen/2008-12-23-AsmIntPointerTie.c
       CodeGen/2005-07-20-SqrtNoErrno.c
       CodeGen/2005-01-02-VAArgError-ICE.c
       CodeGen/2004-06-17-UnorderedCompares.c
       CodeGen/2002-06-25-FWriteInterfaceFailure.c
       CodeGen/2002-02-18-64bitConstant.c
       CodeGen/2002-05-24-Alloca.c
       CodeGen/2006-01-13-Includes.c
       CodeGen/2007-09-27-ComplexIntCompare.c
       CodeGen/2004-02-13-IllegalVararg.c
       CodeGen/2007-09-12-PragmaPack.c
       CodeGen/2002-08-02-UnionTest.c

from test/FrontendC with changes to remove header file includes.

llvm-svn: 136153
2011-07-26 21:42:32 +00:00
Eric Christopher def19fb79d Migrate CodeGen/2007-03-05-DataLayout.c from test/FrontendC with changes
to remove header file includes.

llvm-svn: 136134
2011-07-26 20:44:55 +00:00
Eric Christopher 5a1d214c4a Migrate CodeGen/2005-02-20-AggregateSAVEEXPR.c from test/FrontendC with
changes to remove any #include lines.

llvm-svn: 136129
2011-07-26 20:38:19 +00:00
Eric Christopher 1d9aab8c9e Migrate CodeGen/2009-09-24-SqrtErrno.c from test/FrontendC with changes
to avoid header inclusions.

llvm-svn: 136128
2011-07-26 20:31:17 +00:00
Eric Christopher 63683b1e64 Migrate CodeGen/2002-03-11-LargeCharInString.c from test/FrontendC and
modify to avoid any outside includes.

llvm-svn: 136127
2011-07-26 20:29:08 +00:00
Eric Christopher 0a887eca46 Add CodeGen/2009-07-15-pad-wchar_t-array.c migrated from test/FrontendC
and modified to avoid includes.

llvm-svn: 136126
2011-07-26 20:27:12 +00:00
Eric Christopher 320db01d13 Migrate wchar-const.c with fixes and FileCheck from llvm/test/FrontendC.
llvm-svn: 136114
2011-07-26 18:39:16 +00:00
NAKAMURA Takumi a2fd936107 test/CodeGen/2003-08-18-SigSetJmp.c: XFAIL: mingw, too!
llvm-svn: 136043
2011-07-26 01:40:37 +00:00
Eric Christopher 1c7ea99456 win32 doesn't have sigsetjmp, just xfail this test there.
llvm-svn: 136041
2011-07-26 01:32:19 +00:00
Eric Christopher 2da8b9c652 Rework this slightly to work for optimized compilers and remove the
optimization from the test.

llvm-svn: 136039
2011-07-26 01:24:10 +00:00
Eric Christopher 6f2a0d7234 These tests use standard headers and so need ms extensions with MSVC headers.
Use the driver instead of just clang -cc1.

llvm-svn: 136037
2011-07-26 01:12:27 +00:00
Eric Christopher ad869153ba Remove this test, it's more properly an optimizer test.
llvm-svn: 136036
2011-07-26 01:11:20 +00:00
Eric Christopher e6051006ba Migrate and FileCheck-ize some of:
2003-09-18-BitfieldTests.c 2007-04-11-PR1321.c 2003-11-13-TypeSafety.c 2003-08-29-StructLayoutBug.c 2010-05-14-Optimized-VarType.c 2003-10-06-NegateExprType.c 2007-06-05-NoInlineAttribute.c 2011-03-31-ArrayRefFolding.c 2010-07-14-ref-off-end.c Atomics-no64bit.c 2007-05-11-str-const.c 2004-11-27-InvalidConstantExpr.c 2007-04-05-UnPackedStruct.c 2004-03-15-SimpleIndirectGoto.c 2004-01-08-ExternInlineRedefine.c sret2.c 2007-02-07-AddrLabel.c 2002-09-19-StarInLabel.c 2003-11-16-StaticArrayInit.c 2003-08-18-SigSetJmp.c 2007-04-24-VolatileStructCopy.c 2002-07-29-Casts.c 2005-06-15-ExpandGotoInternalProblem.c 2007-09-17-WeakRef.c 2007-04-24-str-const.c 2003-08-30-LargeIntegerBitfieldMember.c inline-asm-mrv.c

from llvm/test/FrontendC.

llvm-svn: 136035
2011-07-26 00:57:50 +00:00
Chris Lattner 84037d3d0a fix PR10415, tidying up IR representation of module level inline asm
to avoid extraneous \n's.

llvm-svn: 135862
2011-07-23 20:04:25 +00:00
Devang Patel 11de9a966a Check column number also.
llvm-svn: 135437
2011-07-18 22:18:04 +00:00
Nick Lewycky ba4cc01a1f Don't crash when codegen'ing an empty redecl of a function in C99 mode, when
neither was inline. Fixes bug introduced in r135377.

llvm-svn: 135380
2011-07-18 07:11:55 +00:00
Nick Lewycky 26da4ddfa6 In C99, emit an inline function when encountering an extern redeclaration.
Fixes PR10233!

llvm-svn: 135377
2011-07-18 05:26:13 +00:00
Chris Lattner 6fb0ccfa0f Enhance the IR type lowering code to be much smarter about recursively lowering
types.  Fore xample, we used to lower:

struct bar { int a; };
struct foo {
 void (*FP)(struct bar);
} G;

to:

%struct.foo = type { {}* }

since the function pointer would cause recursive translation of bar and
we didn't know if that would get us into trouble.  We are now smart enough
to know that it is fine, so we get this type instead:

%struct.foo = type { void (i32)* }

Codegen still needs to be prepared for uncooperative types at any place,
which is why I let the maximally uncooperative code sit around for awhile to
help shake out the bugs.

llvm-svn: 135244
2011-07-15 05:16:14 +00:00
Bruno Cardoso Lopes 98154a76fd Reapply r134946 with fixes. Tested on Benjamin testcase and other test-suite failures.
llvm-svn: 135091
2011-07-13 21:58:55 +00:00
Devang Patel f0335ce632 Emit debug info for extended vectors.
llvm-svn: 135083
2011-07-13 21:23:30 +00:00
Chris Lattner 3517f14219 PR10337 reminds me that calls return values, lets handle them just
like arguments.  Thanks PR10337! :)

llvm-svn: 135030
2011-07-13 03:59:32 +00:00
Bruno Cardoso Lopes 0aadf83f80 Revert r134946
llvm-svn: 135004
2011-07-12 22:30:58 +00:00
Chris Lattner 73e3004e75 fix an unintended behavior change in the type system rewrite, which caused us to compile
stuff like this:

typedef struct {
 int x, y, z; 
} foo_t;

foo_t g;

into:
%"struct.<anonymous>" = type { i32, i32, i32 }
we now get:
%struct.foo_t = type { i32, i32, i32 }

This doesn't change the behavior of the compiler, but makes the IR much easier to read.

llvm-svn: 134969
2011-07-12 05:53:08 +00:00
Chris Lattner 3ce8668273 fix PR10335 by watching out for IR type compatibility in call argument lists.
llvm-svn: 134966
2011-07-12 04:53:39 +00:00
Chris Lattner 5e3ef09f20 make test name less specific
llvm-svn: 134964
2011-07-12 04:51:05 +00:00
Bruno Cardoso Lopes 75541d00e0 Do the same as r134946 for arrays. Add more testcases for avx x86_64 arg
passing.

llvm-svn: 134951
2011-07-12 01:27:38 +00:00
Bruno Cardoso Lopes 7a26681092 Fix one x86_64 abi issue and the test to actually look for the right thing,
which is: { <4 x float>, <4 x float> } should continue to go through memory.

llvm-svn: 134946
2011-07-12 00:30:27 +00:00
Bruno Cardoso Lopes 21a41bb5ec Reapply r134754, which turns out to be working correctly and also
add one more testcase.

llvm-svn: 134934
2011-07-11 22:41:29 +00:00
Chris Lattner d1f1158203 Fix the clang bootstrap and Jay's testcase from llvm-dev by being completely
conservative when converting a functiontype to IR when in a "pointer within
a struct" context.  This has the unfortunate sideeffect of compiling all 
function pointers inside of structs into "{}*" which, though correct, is
ugly.  This has the positive side effect of being correct, and it is pretty
straight-forward to improve on this.

llvm-svn: 134861
2011-07-10 03:47:27 +00:00
Chris Lattner 8806e32f16 Rename CGT::VerifyFuncTypeComplete to isFuncTypeConvertible since
it is a predicate, not an action.  Change the return type to be a bool,
not the incomplete member.  Enhace it to detect the recursive compilation
case, allowing us to compile Eli's testcase on llvmdev:

struct T {
 struct T (*p)(void);
} t;

into:

%struct.T = type { {}* }

@t = common global %struct.T zeroinitializer, align 8

llvm-svn: 134853
2011-07-10 00:18:59 +00:00
Chris Lattner a5f58b05e8 clang side to match the LLVM IR type system rewrite patch.
llvm-svn: 134831
2011-07-09 17:41:47 +00:00
Evan Cheng 7b15d1885f cc1 must initialize MC subtarget infos for inline asm parsing. Re-enable asm-errors.c
llvm-svn: 134811
2011-07-09 07:32:07 +00:00
Chris Lattner 380667d520 disable this test to get the botz green again.
llvm-svn: 134808
2011-07-09 07:14:54 +00:00
Eli Friedman a7c9411818 Silly typo in test for r134770.
llvm-svn: 134774
2011-07-08 23:57:18 +00:00
Eli Friedman 3346582bca Change -mno-mmx to be more compatible with gcc. Specifically, -mno-mmx should not imply -mno-sse.
Note that because we don't usually touch the MMX registers anyway, all -mno-mmx needs to do is tweak the x86-32 calling convention a little for vectors that look like MMX vectors, and prevent the definition of __MMX__.

clang doesn't actually stop the user from using MMX inline asm operands or MMX builtins in -mno-mmx mode; as a QOI issue, it would be nice to diagnose, but I doubt it really matters much.

<rdar://problem/9694837>

llvm-svn: 134770
2011-07-08 23:31:17 +00:00
Bruno Cardoso Lopes 129b4cc9ec Revert x86_64 ABI changes until I have time to check the items raised by Eli.
llvm-svn: 134765
2011-07-08 22:57:35 +00:00
Jakub Staszak d2cf2cbae9 Introduce __builtin_expect() intrinsic support.
llvm-svn: 134761
2011-07-08 22:45:14 +00:00
Bruno Cardoso Lopes 308d7423a9 Add support for AVX 256-bit in the x86_64 ABI (as in the 0.99.5 draft)
llvm-svn: 134754
2011-07-08 22:18:40 +00:00
Cameron Zwarich ae7bc98710 Add codegen support for the fma/fmal/fmaf builtins.
llvm-svn: 134743
2011-07-08 21:39:34 +00:00
Eric Christopher f7d303c541 Add a testcase for the previous commit and update an existing test for an
extra register.

Part of PR10299 and rdar://9740322

llvm-svn: 134657
2011-07-07 23:11:01 +00:00
Cameron Zwarich be652e6a24 r134634 causes a failure on MultiSource/Benchmarks/Olden/bh with TEST=nightly,
so roll it out.

llvm-svn: 134638
2011-07-07 21:03:28 +00:00
Nick Lewycky d755e6ac48 A redeclaration of an inline method in C99 mode should trigger emission of that
function. Fixes PR10233!

llvm-svn: 134634
2011-07-07 20:25:10 +00:00
Fariborz Jahanian 134f4587e7 revert patch for // rdar://9227352
llvm-svn: 134536
2011-07-06 21:05:11 +00:00
Devang Patel 2f5297901d Testcase for r134441.
llvm-svn: 134442
2011-07-05 21:48:46 +00:00
Eli Friedman 1310c68bb0 Don't use x86_mmx where it isn't necessary.
The start of some work on getting -mno-mmx working the way we want it to.

llvm-svn: 134300
2011-07-02 00:57:27 +00:00
Eric Christopher dba0288cbf Add a testcase for r134292.
Part of rdar://9714064

llvm-svn: 134295
2011-07-02 00:28:30 +00:00
Fariborz Jahanian 25e61c58bf Use existing -fcatch-undefined-behavior option,
replacing -freset-local-blocks. // rdar://9227352

llvm-svn: 134082
2011-06-29 18:41:17 +00:00
Fariborz Jahanian fc510bdd94 Under a compiler flag, -freset-local-blocks,
wipe out stack blocks when they go out of scope.
// rdar://9227352

llvm-svn: 134045
2011-06-28 23:51:26 +00:00
John McCall e25bf38d94 Merge this test into another.
llvm-svn: 133957
2011-06-27 22:57:05 +00:00
Nico Weber 8aba2d8014 Revert parts of r133860 to fix a crash. Add a test.
llvm-svn: 133931
2011-06-27 19:46:54 +00:00
John McCall 77527a8e65 Mark the multiply which occurs as part of performing pointer
arithmetic on a VLA as 'nsw', per discussion with djg, and
implement pointer arithmetic (other than array accesses) and
pointer subtraction for VLA types.

llvm-svn: 133855
2011-06-25 01:32:37 +00:00
Devang Patel 15013e78c3 Fix struct member's scope. Patch by Xi Wang.
llvm-svn: 133829
2011-06-24 22:00:59 +00:00
John McCall 23c29fea92 Change the IR-generation of VLAs so that we capture bounds,
not sizes;  so that we use well-typed allocas;  and so that we
properly recurse through the full set of variably-modified types.

llvm-svn: 133827
2011-06-24 21:55:10 +00:00
Fariborz Jahanian 33e022650a Issue warning if weak_import attribute is added to an already
declared variable and ignore it. // rdar://9538608

llvm-svn: 133654
2011-06-22 22:08:50 +00:00
Eric Christopher b4a791f7bc Canonicalize register names properly.
Fixes rdar://9425559

llvm-svn: 133486
2011-06-21 00:07:10 +00:00
Eric Christopher cdd3635b09 Move additional register names to their own lookup, separate from
register aliases. Fixes unnecessary renames of clobbers.

Fixes part of rdar://9425559

llvm-svn: 133485
2011-06-21 00:05:20 +00:00
Fariborz Jahanian ab578bf355 llvm-gcc treats a tentative definition with a previous
(or follow up) extern declaration with weak_import as 
an actual definition. make clang follows this behavior. 
// rdar://9538608
llvm-gcc treats an extern declaration with weak_import

llvm-svn: 133450
2011-06-20 17:50:03 +00:00
Chris Lattner e64d7ba153 Update to match mainline ConstantStruct::get API change. Also, use
ConvertType on InitListExprs as they are being converted.  This is
needed for a forthcoming patch, and improves the IR generated anyway
(see additional type names in testcases). 

This patch also converts a bunch of std::vector's in CGObjCMac to use
C arrays.  There are a ton more that should be converted as well.

llvm-svn: 133413
2011-06-20 04:01:35 +00:00
Douglas Gregor 2486d6632a Loosen up the IR matching slightly
llvm-svn: 133263
2011-06-17 17:23:28 +00:00
Eric Christopher c2e40c64a0 Remove another variable.
llvm-svn: 133262
2011-06-17 17:04:30 +00:00
Douglas Gregor 6c9d31eb25 When emitting a compound literal of POD type, continue to emit a
separate aggregate temporary and then memcpy it over to the
destination. This fixes a regression I introduced with r133235, where
the compound literal on the RHS of an assignment makes use of the
structure on the LHS of the assignment.

I'm deeply suspicious of AggExprEmitter::VisitBinAssign()'s
optimization where it emits the RHS of an aggregate assignment
directly into the LHS lvalue without checking whether there is any
aliasing between the LHS/RHS. However, I'm not in a position to
revisit this now.

Big thanks to Eli for finding the regression!

llvm-svn: 133261
2011-06-17 16:37:20 +00:00
Eric Christopher f067526adb Clean up test to avoid using standard headers and remove an unneeded
#define.

llvm-svn: 133241
2011-06-17 06:16:34 +00:00
Eric Christopher c8d6afe1d8 Make this test suitable for optimized builds by avoiding the name.
llvm-svn: 133238
2011-06-17 05:24:17 +00:00
Eric Christopher e9544258ef Check the specific target to figure out if a constraint is a valid
register constraint. Note that we're not checking if the register itself
is valid for the constraint.

Fixes rdar://9382985

llvm-svn: 133226
2011-06-17 01:53:34 +00:00
Fariborz Jahanian a27070db0c Set the visibility to 'hidden' when previous
declaration of global var is __private_extern__.
// rdar://9609649

llvm-svn: 133157
2011-06-16 14:49:42 +00:00
Eli Friedman e4ff968f56 Test for r133070.
llvm-svn: 133079
2011-06-15 20:17:07 +00:00
Eli Friedman 7e68c88bf7 Fix a regression from r132957 involving complex integers. (Fixes failures on gcc-testsuite bot.)
llvm-svn: 133069
2011-06-15 18:26:32 +00:00
Eli Friedman eb7fab61bd The LLVM IR representation of byval arguments has a rather strange property: if the alignment of an argument to a call is less than the specified byval alignment for that argument, there is no way to specify the alignment of the implied copy. Therefore, we must ensure that the alignment of the argument is at least the byval alignment. To do this, we have to mess with the alignment of relevant alloca's in some cases, and insert a copy that conceptually shouldn't be necessary in some cases.
This patch tries relatively hard to avoid creating an extra copy if it can be avoided (see test3 in the included testcase), but it is not possible to avoid in some cases (like test2 in the included testcase).

rdar://9483886

llvm-svn: 132957
2011-06-14 01:37:52 +00:00
Stuart Hastings 7fdc6707ac Clang support for ARM Uv/Uy/Uq inline-asm constraints.
rdar://problem/9037836

llvm-svn: 132737
2011-06-07 23:45:05 +00:00
Galina Kistanova f56b4f6fdd These tests require particular registered targets. Declared as such.
llvm-svn: 132600
2011-06-03 22:24:54 +00:00
Galina Kistanova b38fd263bd Added registered targets for in-test dependency declarations.
llvm-svn: 132571
2011-06-03 18:36:30 +00:00
John McCall 77bdccd9bc Test case for some AVX builtins. Patch by Syoyo Fujita!
llvm-svn: 132518
2011-06-03 00:02:45 +00:00
Galina Kistanova 123363cf10 Reverted r132330, r132321, r132320, r132319 as per discussion. Will try in-test requirement declarations instead.
llvm-svn: 132491
2011-06-02 21:55:39 +00:00
Rafael Espindola fb2af643e4 Implement -fgnu89-inline. Fixes PR10041.
llvm-svn: 132460
2011-06-02 16:13:27 +00:00
Galina Kistanova 4503e20ae6 Just one for now to see how it will fly.
llvm-svn: 132321
2011-05-31 00:34:37 +00:00
Eli Friedman b857842c48 Add unnamed_addr to internal globals which are only used as an operand to memcpy. (Spotted by looking at IR.)
llvm-svn: 132226
2011-05-27 22:32:55 +00:00
Eli Friedman 6ffb623a52 Match llvm-gcc's string literals alignment by forcing alignment on string literals to 1. This can significantly impact the size of the string data, and as far as I know, the alignment doesn't help performance. rdar://9078969 .
llvm-svn: 132223
2011-05-27 22:13:20 +00:00
Eli Friedman df96819daf Skip extra copy from aggregate where it isn't necessary; rdar://problem/8139919 . This shouldn't make much of a difference at -O3, but should substantially reduce the number of generated memcpy's at -O0.
Originally r130717, but was backed out due to an ObjC regression.

llvm-svn: 132102
2011-05-26 00:10:27 +00:00
Chris Lattner e76b95ae15 make the x86-32 backend specify a byval alignment, even when the
code generator will do it.  With this patch, clang compiles the example
in PR9794 to not have an alloca temporary.

llvm-svn: 131881
2011-05-22 23:35:00 +00:00
Chris Lattner 44c2b90556 Fix x86-64 byval passing to specify the alignment even when the code
generator will give it something sufficient.  This is important because
the mid-level optimizer doesn't know what alignment is required otherwise.

llvm-svn: 131879
2011-05-22 23:21:23 +00:00
Nick Lewycky 2e83c4c4c3 Fix fallout from r131838.
llvm-svn: 131844
2011-05-22 06:50:05 +00:00
Eli Friedman 2f1e9e618c Make __builtin_shufflevector and -ftrapv work correctly together. PR9945.
llvm-svn: 131611
2011-05-19 00:37:32 +00:00
Joerg Sonnenberger caf8ffd8e3 Bug 8765: Honor assembler labels for builtins. Ensure that the label is
mangled to avoid doing it twice for platforms that use prefixes like
Darwin.

llvm-svn: 131311
2011-05-13 21:12:10 +00:00
Bill Wendling bb455154a1 Remove the 'unaligned load' builtins now that they're no longer used in the *mmintrin.h files.
llvm-svn: 131300
2011-05-13 18:52:28 +00:00
Bill Wendling e106c34817 LLVM doesn't always optimize away the four loads from this:
(__m128){ p[0], p[1], p[2], p[3] }

which produces really bad code. This could be done in instcombine, but it's
probably better to do it in the front-end instead.
<rdar://problem/9424836>

llvm-svn: 131237
2011-05-12 19:02:15 +00:00
Fariborz Jahanian b0c0cdc509 Clean up consequences of cut and paste.
llvm-svn: 131190
2011-05-11 17:07:02 +00:00
Fariborz Jahanian 783243b3ca Implenment #pack pragma and ms_struct attribute layout.
Concludes // radar://8823265.

llvm-svn: 131188
2011-05-11 16:58:31 +00:00
Fariborz Jahanian 07ceb0a1a4 Support pack pragma and ms_struct attributes. // rdar://8823265
llvm-svn: 131142
2011-05-10 19:00:50 +00:00
Fariborz Jahanian 7adbed6b4d 'long long' requires special treatment in ms_struct
structs (impacts 32-bit only though).

llvm-svn: 131103
2011-05-09 22:03:17 +00:00
Douglas Gregor 9ca5465500 Revert r130717, which caused a regression (<rdar://problem/9402621>).
llvm-svn: 131057
2011-05-07 20:12:26 +00:00
Fariborz Jahanian 307eace474 In ms_struct structs, Establish a new alignment for a
non-bitfield following a bitfield if size of their types differ.

llvm-svn: 131032
2011-05-06 22:42:22 +00:00
Fariborz Jahanian b7a2879677 Establish a new alignment for an ms_struct bitfield following
a non-bitfield if size of their types differ.

llvm-svn: 131023
2011-05-06 21:56:12 +00:00
Eli Friedman 409943efcb Don't emit nsw flags for vector operations; there's basically no benefit, and a lot of downside (like PR9850, which is about clang's xmmintrin.h making an unexpected transformation on an expression involving _mm_add_epi32).
llvm-svn: 131000
2011-05-06 18:04:18 +00:00
Fariborz Jahanian 9f1071831f __alignof attribute on the field must consider
packed attribute on the field. //rdar://9217290

llvm-svn: 130948
2011-05-05 21:19:14 +00:00
Daniel Dunbar 6cb7f64e8b tests: Force a triple in this test (so uint128 is present).
llvm-svn: 130941
2011-05-05 18:54:06 +00:00
Devang Patel 979aba5d09 Do not drop uint128 on the floor.
llvm-svn: 130929
2011-05-05 17:06:30 +00:00
Fariborz Jahanian 9d82fea378 And a test case for my last patch.
llvm-svn: 130853
2011-05-04 18:58:27 +00:00
Fariborz Jahanian 84335f7c8e More ms_struct bitfield stuff:
Adjacent bit fields are packed into the same 1-, 2-, or
4-byte allocation unit if the integral types are the same
size. // rdar://8823265.

llvm-svn: 130851
2011-05-04 18:51:37 +00:00
Fariborz Jahanian 759e4a1add Only the first zero-length bitfield decides alignment of
the followup data member in an ms_struct struct.
// rdar:// 8823265

llvm-svn: 130795
2011-05-03 22:07:14 +00:00
Fariborz Jahanian fc0fe6eb52 Finish off rules for z-length bitfields in ms_struct
structs. // rdar://8823265

llvm-svn: 130783
2011-05-03 20:21:04 +00:00
Chad Rosier f897d3b88b Fixed test case asserts due to checkin of r130710.
llvm-svn: 130720
2011-05-02 20:39:21 +00:00
Eli Friedman 30458b51e3 Skip extra copy from aggregate where it isn't necessary; rdar://problem/8139919 . This shouldn't make much of a difference at -O3, but should substantially reduce the number of generated memcpy's at -O0.
llvm-svn: 130717
2011-05-02 20:24:29 +00:00
Fariborz Jahanian eb39741c0b More rule enforcement of zero bitfields for ms_struct.
llvm-svn: 130696
2011-05-02 17:20:56 +00:00
Fariborz Jahanian 99514b9168 block variables on lhs need be ir-gen'ed after the
rhs when its 'forwarding' pointer may be modified 
in rhs evaluation as result of call to Block_copy.
// rdar://9309454

llvm-svn: 130545
2011-04-29 21:53:21 +00:00
Fariborz Jahanian 8409bce4ac ms_struct patch for initialization and field access irgen.
// rdar://8823265 - wip.

llvm-svn: 130451
2011-04-28 22:49:46 +00:00
Fariborz Jahanian bcb23a180b With ms_struct attribut, Zero-length bitfields following
non-bitfield members are ignore. // rdar://8823265 wip

llvm-svn: 130257
2011-04-26 23:52:16 +00:00
Fariborz Jahanian 5a866c0bf2 Ir-gen the side-effect(s) when __builtin_expect is
constant-folded. // rdar://9330105

llvm-svn: 130163
2011-04-25 22:30:02 +00:00
Bob Wilson ee674fb73d Workaround buildbot failure by hacking up this test to emit llvm IR.
This is not a real fix.  It needs some checks to make sure the IR is correct.

llvm-svn: 130012
2011-04-22 20:42:46 +00:00
Justin Holewinski bd4a3c03ff PTX: Add default PTX calling conventions
llvm-svn: 129987
2011-04-22 11:10:38 +00:00
Bob Wilson bf0cd6b83d Add a testcase for svn r129964 (Neon load/store intrinsic alignments).
llvm-svn: 129979
2011-04-22 04:06:49 +00:00
John McCall e0fda7377e The 0.98 revision of the x86-64 ABI clarified a lot of things, some
of which break strict compatibility with previous compilers.  Implement
one of them and then immediately opt out on Darwin.

llvm-svn: 129899
2011-04-21 01:20:55 +00:00
Chris Lattner 54fd1a1ad3 fix a crash on code that uses the result value of __builtin___memcpy_chk.
llvm-svn: 129892
2011-04-20 23:14:50 +00:00
Justin Holewinski 514cce8e43 PTX: Add PTX intrinsics as builtins and add ptx32 and ptx64 as valid architectures for triples, e.g. ptx32-unknown-unknown
llvm-svn: 129870
2011-04-20 19:34:15 +00:00
Chris Lattner 97bbee2fb4 Fix a miscompilation I introduced in r129652, thanks for Eli for tracking
it down.  we effectively were compile the testcase into:

void test14(int x) {
  switch (x) {
    case 11: break;
    case 42: test14(97);  // fallthrough
    default: test14(42); break;

which is not the same thing at all.  This fixes a miscompilation of 
MallocBench/gs seen on the clang-x86_64-linux-fnt buildbot.

llvm-svn: 129679
2011-04-17 23:21:26 +00:00
Chris Lattner 38b6057a93 when assertions are disabled, labels go away. Hopefully fixes the windows build.
llvm-svn: 129660
2011-04-17 16:19:57 +00:00
Chris Lattner bc204c8043 implement rdar://9289524 - case followed immediately by break results in empty IR block,
a -O0 code quality issue.

llvm-svn: 129652
2011-04-17 00:54:30 +00:00
Chris Lattner 30107ed600 fold memcpy/set/move_chk to llvm.memcpy/set/move when the sizes
are trivial.  This exposes opportunities earlier, and allows fastisel
to do good things with these at -O0.

This addresses rdar://9289468 - clang doesn't fold memset_chk at -O0

llvm-svn: 129651
2011-04-17 00:40:24 +00:00
Chris Lattner 56784f9de6 fix rdar://9289603 - clang should fold trivial ?: for enums as well as integer constants into select at -O0
by making the isCheapEnoughToEvaluateUnconditionally predicate handle anything that folds to a constant.  In particular, we now fold enums.

llvm-svn: 129649
2011-04-16 23:15:35 +00:00
Michael J. Spencer 6826eb816a Add 3DNow! Intrinsics.
llvm-svn: 129570
2011-04-15 15:07:13 +00:00
Chris Lattner 57540c5be0 fix a bunch of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129559
2011-04-15 05:22:18 +00:00
Anton Korobeynikov 231e875b5c Implement ARM pcs attribute. Basically it's another way of calling convention selection (AAPCS or
AAPCS+VFP), similar to fastcall / stdcall / whatevercall seen on x86.

In particular, all library functions should always be AAPCS regardless of floating point ABI used.

llvm-svn: 129534
2011-04-14 20:06:49 +00:00
Bill Wendling a865185ad6 Removing the unaligned load tests from builtins-x86.c since they're generated by a regular 'load' now.
llvm-svn: 129464
2011-04-13 20:17:22 +00:00
Eli Friedman 493c34a86c PR9580: Handle vectors correctly in ScalarExprEmitter::EmitRem.
While I'm here, FileCheck-ize the ext-vector test, so we actually check
what it is generating.

llvm-svn: 129241
2011-04-10 04:44:11 +00:00
Eli Friedman c5b20b5283 PR8369: make __attribute((regparm(0))) work correctly. Original patch by
pageexec@freemail.hu, tweaks by me.

llvm-svn: 129206
2011-04-09 08:18:08 +00:00
Chris Lattner 9cb59fa834 add a __sync_swap builtin to fill out the rest of the __sync builtins.
Patch by Dave Zarzycki!

llvm-svn: 129189
2011-04-09 03:57:26 +00:00
John McCall 26d365e149 I can't figure out any reasonable way to make this test non-host-dependent,
so I'm killing it.

llvm-svn: 129026
2011-04-06 20:46:42 +00:00
Peter Collingbourne ba3e6667cc Do not use IR marker for LLVM intrinsics
llvm-svn: 129001
2011-04-06 12:29:09 +00:00
John McCall b1915d62a7 Make this a -cc1 test with a triple and a target feature.
llvm-svn: 128993
2011-04-06 06:48:04 +00:00
John McCall 3cacdf5dbb Anonymify this test.
llvm-svn: 128987
2011-04-06 04:29:52 +00:00
John McCall 91a528841b Implement the AVX cmp builtins as macros instead of static inlines.
Patch by Syoyo Fujita!  Reviewed by Chris Lattner!  Checked in by me!

llvm-svn: 128984
2011-04-06 03:37:51 +00:00
Daniel Dunbar 826342774e IRgen: Reapply r128691 with a fix to ensure we don't increase alignment past
that of the array element type.

llvm-svn: 128698
2011-04-01 00:49:43 +00:00
Daniel Dunbar ea6b81a2ad Revert r128691, "IRgen: Improve GCC compatibility when dealing with packed
arrays by propagating", it's breaking test in ways I don't understand yet.

llvm-svn: 128693
2011-04-01 00:13:33 +00:00
Daniel Dunbar 417bf0f147 IRgen: Improve GCC compatibility when dealing with packed arrays by propagating
the array alignment to the array access.
 - This is more or less the best we can do without having alignment present in
   the type system, but is a long way from truly matching how GCC handles this.

llvm-svn: 128691
2011-03-31 23:32:15 +00:00
Devang Patel adc35e28fc Robustify test string.
llvm-svn: 128486
2011-03-29 21:06:43 +00:00
Devang Patel 298ecb3aaf Add target triple.
llvm-svn: 128480
2011-03-29 20:00:06 +00:00
Devang Patel 6f2e41e0d4 Do not line number entry for unconditional branches. Usually, users do not want to stop at closing '}'.
llvm-svn: 128471
2011-03-29 18:35:54 +00:00
Anton Yartsev 28ccef788b supported: AltiVec vector initialization with a single literal according to PIM section 2.5.1 - after initialization all elements have the value specified by the literal
llvm-svn: 128375
2011-03-27 09:32:40 +00:00
Douglas Gregor 1baf38f5a6 On Mac OS X, the presence of an 'availability' attribute for that
platform implies default visibility. To achieve these, refactor our
lookup of explicit visibility so that we search for both an explicit
VisibilityAttr and an appropriate AvailabilityAttr, favoring the
VisibilityAttr if it is present.

llvm-svn: 128336
2011-03-26 12:10:19 +00:00
John Thompson 88903beaf5 Fixed some of the incompatibilities with gcc.
llvm-svn: 128228
2011-03-24 18:51:57 +00:00
Eli Friedman b4d3c99929 Make sure we aggressively attach nounwind (etc.) to calls to library
functions of the form __builtin_XXX.

llvm-svn: 128198
2011-03-24 05:09:45 +00:00
Rafael Espindola 0c1f098284 Switch from internal to linker_private linkage, it is sufficient to please the new linker.
llvm-svn: 127622
2011-03-14 21:08:19 +00:00
Eric Christopher cf5e83b471 __clear_cache() is varargs and people will occasionally write it without
arguments. Process only the arguments that people write, but process
all of them.

Fixes rdar://8900346

llvm-svn: 127616
2011-03-14 20:30:34 +00:00
Rafael Espindola 7a6cf01895 Fix link of libxul with LTO and the linker in xcode4. It is not clear if this
is working around a bug in ld or if the new linker has a reasonable reason
for wanting the string constant to be linker visible.

llvm-svn: 127594
2011-03-14 17:55:00 +00:00
Bill Wendling ec9d2633f1 When we adjust the inline ASM type, we need to take into account an early
clobber with the 'y' constraint. Otherwise, we get the wrong return type and an
assert, because it created a '<1 x i64>' vector type instead of the x86_mmx
type.

llvm-svn: 127185
2011-03-07 22:47:14 +00:00
Douglas Gregor 19da4e4397 Revert r126422 "Use private linkage to avoid symbol conflicts in
corner cases like the one in PR9301." which caused PR9416. 

llvm-svn: 127136
2011-03-06 23:28:21 +00:00
NAKAMURA Takumi 98835748e3 test/CodeGen/2008-07-17-no-emit-on-error.c: Use LLVM's opt instead of "test(1)" for Mingw MSYS.
Mingw MSYS does not have test.exe (only shell built-in test), and is not capable to invoke test(1) from utils/not.

llvm-svn: 127078
2011-03-05 11:15:55 +00:00
Benjamin Kramer 0f074df979 Only emit string initializers in-place if types match. Fixes PR9373.
llvm-svn: 126883
2011-03-02 21:27:44 +00:00
Eli Friedman 846ded2e53 PR9350: increment/decrement of char (and anything else narrower than int)
can't overflow due to promotion rules; emit a wrapping add for those cases.

llvm-svn: 126816
2011-03-02 01:49:12 +00:00
Douglas Gregor 1bbd2d2ece Kill off more names to fix this test
llvm-svn: 126775
2011-03-01 19:55:40 +00:00
Roman Divacky 5e1af659e9 Fix the test.
llvm-svn: 126768
2011-03-01 18:50:59 +00:00
Roman Divacky 65b88cdb3b Implement -mrtd which sets the StdCall calling convention to be the default
one.

llvm-svn: 126756
2011-03-01 17:40:53 +00:00
Chris Lattner 2e72da947c -fwrapv should turn off the inbounds markers from geps used for pointer
arithmetic.  This is part of PR9256, it would be great if someone else
wired up -fno-strict-overflow in the driver to -fwrapv.

llvm-svn: 126718
2011-03-01 00:03:48 +00:00
Chris Lattner 35d3ac5e9e Make skipping of vardecls more precise: it's ok to skip a decl if the entire
compound stmt containing the decl is skipped.

llvm-svn: 126639
2011-02-28 07:22:44 +00:00
Chris Lattner 62208c395a make switch constant folding a bit stronger, handling a missed case.
llvm-svn: 126638
2011-02-28 07:16:14 +00:00
Ken Dyck 1b4420ed42 Retry r126357. Use CharUnits for the Size and DataSize calculations when
they are known to be exact multiples of the width of the char type. Add a
test case to CodeGen/union.c that would have caught the problem with the
previous attempt. No change in functionality intended.

llvm-svn: 126628
2011-02-28 02:01:38 +00:00
Chris Lattner dc2cc67e57 remove a bogus assertion, add a comment.
llvm-svn: 126603
2011-02-28 01:06:02 +00:00
Chris Lattner 0709542628 make switch condition constant folding much more aggressive, handling
compound statements and break statements.  This implements enough to 
handle PR9322 and rdar://6970405.

llvm-svn: 126602
2011-02-28 01:02:29 +00:00
Chris Lattner 0725a8b653 First tiny step to implementing PR9322: build infrastructure for only emitting the
live case of a switch statement when switching on a constant.  This is terribly
limited, but enough to handle the trivial example included.  Before we would 
emit:

define void @test1(i32 %i) nounwind {
entry:
  %i.addr = alloca i32, align 4
  store i32 %i, i32* %i.addr, align 4
  switch i32 1, label %sw.epilog [
    i32 1, label %sw.bb
  ]

sw.bb:                                            ; preds = %entry
  %tmp = load i32* %i.addr, align 4
  %inc = add nsw i32 %tmp, 1
  store i32 %inc, i32* %i.addr, align 4
  br label %sw.epilog

sw.epilog:                                        ; preds = %sw.bb, %entry
  switch i32 0, label %sw.epilog3 [
    i32 1, label %sw.bb1
  ]

sw.bb1:                                           ; preds = %sw.epilog
  %tmp2 = load i32* %i.addr, align 4
  %add = add nsw i32 %tmp2, 2
  store i32 %add, i32* %i.addr, align 4
  br label %sw.epilog3

sw.epilog3:                                       ; preds = %sw.bb1, %sw.epilog
  ret void
}

now we emit:

define void @test1(i32 %i) nounwind {
entry:
  %i.addr = alloca i32, align 4
  store i32 %i, i32* %i.addr, align 4
  %tmp = load i32* %i.addr, align 4
  %inc = add nsw i32 %tmp, 1
  store i32 %inc, i32* %i.addr, align 4
  ret void
}

This improves -O0 compile time (less IR to generate and shove through the code 
generator) and the clever linux kernel people found a way to fail to build if we 
don't do this optimization.  This step isn't enough to handle the kernel case
though.

llvm-svn: 126597
2011-02-28 00:22:07 +00:00
John McCall 53fcbd2718 Pretty up the emission of field l-values and use volatile and TBAA when
loading references as part of that.  Use 'char' TBAA when accessing
(immediate!) fields of a may_alias struct;  fixes PR9307.

llvm-svn: 126540
2011-02-26 08:07:02 +00:00
Rafael Espindola eb4fd01f7a Use private linkage to avoid symbol conflicts in corner cases like the one
in PR9301.

llvm-svn: 126422
2011-02-24 20:31:44 +00:00
Anders Carlsson 4fc229ef69 Move some Objective-C tests to SemaObjC and CodeGenObjC.
llvm-svn: 126175
2011-02-22 01:23:29 +00:00
Chris Lattner 93ede02045 add one more case of mismatched input/output constraints.
When the mismatch is due to a larger input operand that is
a constant, truncate it down to the size of the output.  This
allows us to accept some cases in the linux kernel and elsewhere.
Pedantically speaking, we generate different code than GCC, though
I can't imagine how it would matter:

Clang:
	movb	$-1, %al
	frob %al

GCC:

	movl	$255, %eax
	frob %al

llvm-svn: 126148
2011-02-21 22:09:29 +00:00
Stuart Hastings b6a4d3ebd2 Test case for r126127 and r126141. Radar 9012638.
llvm-svn: 126142
2011-02-21 21:08:21 +00:00
Chris Lattner b0ed51da10 implement a tiny amount of codegen support for gnu array range
designators: allowing codegen when the element initializer is a
constant or something else without a side effect.  This unblocks
enough to let process.c in the linux kernel build, PR9257.

llvm-svn: 126056
2011-02-19 22:28:58 +00:00
John McCall 8377967543 Warn about code that uses variables and functions with internal linkage
without defining them.  This should be an error, but I'm paranoid about
"uses" that end up not actually requiring a definition.  I'll revisit later.

Also, teach IR generation to not set internal linkage on variable
declarations, just for safety's sake.  Doing so produces an invalid module
if the variable is not ultimately defined.

Also, fix several places in the test suite where we were using internal
functions without definitions.

llvm-svn: 126016
2011-02-19 02:53:41 +00:00
Devang Patel 1728c232d5 If preprocessed token introduced empty filename then use main translation unit's filename for debug info entries.
llvm-svn: 125672
2011-02-16 18:40:36 +00:00
Rafael Espindola d62acb569c Add a hack to avoid adding '\01' to asm names when possible. It would be
better for clang to always compute the right name, but for now this hack
fixes PR9177 and lets us build firefox with LTO :-)

llvm-svn: 125607
2011-02-15 22:23:51 +00:00
Peter Collingbourne e91b2dbdf1 OpenCL: standardise naming of test cases
llvm-svn: 125590
2011-02-15 19:46:41 +00:00
Roman Divacky 5bc5151299 Add a testcase for the mcount profiling.
llvm-svn: 125283
2011-02-10 16:52:35 +00:00
Daniel Dunbar 0bb0331d95 Driver/Frontend: Wire up -mregparm=.
llvm-svn: 125201
2011-02-09 17:54:19 +00:00
John McCall 351762cda2 A few more tweaks to the blocks AST representation:
- BlockDeclRefExprs always store VarDecls
  - BDREs no longer store copy expressions
  - BlockDecls now store a list of captured variables, information about
    how they're captured, and a copy expression if necessary
    
With that in hand, change IR generation to use the captures data in       
blocks instead of walking the block independently.        

Additionally, optimize block layout by emitting fields in descending
alignment order, with a heuristic for filling in words when alignment
of the end of the block header is insufficient for the most aligned
field.

llvm-svn: 125005
2011-02-07 10:33:21 +00:00
Anton Yartsev 85129b8a86 pre/post ++/-- for AltiVec vectors. (with builtins-ppc-altivec.c failure fixed)
llvm-svn: 125000
2011-02-07 02:17:30 +00:00
Nick Lewycky fe719128e9 Fix test by fully specifying the platform.
llvm-svn: 124719
2011-02-02 07:17:02 +00:00
Douglas Gregor dbe3927026 Basic support for -mms-bitfields, from Carl Norum!
llvm-svn: 124661
2011-02-01 15:15:22 +00:00
Argyrios Kyrtzidis 0d349f9b8a When initializing struct members, the important thing is that the "initializing" expression is
compatible, not having the same type.

Fix rdar://8183908 in which compatible vector types weren't initialized properly leading to a crash.

llvm-svn: 124637
2011-02-01 00:52:10 +00:00
Eric Christopher 23ec82fa47 Revert r124146 for now. It appears to be failing on a few platforms.
llvm-svn: 124153
2011-01-24 23:07:03 +00:00
Anton Yartsev 3bad9afaba pre/post increase/decrease for AltiVec vectors
llvm-svn: 124146
2011-01-24 20:55:22 +00:00
John McCall 4e81961a1e Fix the computation of alignment for fields of packed+aligned structs.
Part of the fix for PR8413.

llvm-svn: 123904
2011-01-20 07:57:12 +00:00
Douglas Gregor d763b3e014 Comment a wacky test case
llvm-svn: 123758
2011-01-18 18:38:18 +00:00
Rafael Espindola 2e217d6555 More unnamed_addr.
llvm-svn: 123681
2011-01-17 22:22:52 +00:00
Rafael Espindola e79d43da3b Add unnamed_addr to the special strings created by
__builtin___CFStringMakeConstantString
This fixes PR8993. A darwin expert might want to check that this is safe.

llvm-svn: 123658
2011-01-17 16:31:00 +00:00
John McCall 294c2db42b Ensure an insertion point at the end of a statement-expression.
Fixes PR8967.

llvm-svn: 123360
2011-01-13 02:03:06 +00:00
John McCall 20f6ab828a Fix a latent bug where, after emitting an expression statement, we would
delete the block we began emitting into if it had no predecessors.  We never
want to do this, because there are several valid cases during statement
emission where an existing block has no known predecessors but will acquire
some later.  The case in my test case doesn't inherently fall into this 
category, because we could safely emit the case-range code before the statement
body, but there are examples with labels that can't be fallen into 
that would also demonstrate this bug.

rdar://problem/8837067

llvm-svn: 123303
2011-01-12 03:41:02 +00:00
Rafael Espindola b7f60e3474 Add unnamed_addr when creating artificial string globals. For example, in
static const char foo[] = "foo";
static const char *bar = "bar";

the global created to hold "bar" will have it, but foo will not.

llvm-svn: 123192
2011-01-10 22:34:03 +00:00
Roman Divacky 7e96295fb5 Use -check-prefix to make it clear the test is SVR4/DARWINPPC specific.
llvm-svn: 123005
2011-01-07 19:01:39 +00:00
Roman Divacky 1b805a0bc9 Drop the _darwin/_svr4 suffixes.
llvm-svn: 123004
2011-01-07 19:00:05 +00:00
Roman Divacky 965b0b72b1 PowerPC fixes.
Fix the width and align of bool type on Darwin to be 32bits
while keeping it 8 everywhere else.

Change the definition of va_list to default to SV4 ABI one
and let darwin subtarget override this.

Both changes submitted by Nathan Whitehorn and reviewed
by Rafael Espindola.

llvm-svn: 122956
2011-01-06 08:27:10 +00:00
Rafael Espindola 47731fe3f1 Add support for passing variables declared to use a xmm register to asm
statements using the "x" constraint.

llvm-svn: 122679
2011-01-02 03:59:13 +00:00
Rafael Espindola c56f847a96 Add support for declaring register contraints in variables. They are only used
in asm statements:

register int foo asm("rdi");

asm("..." : ... "r" (foo) ...

We also only accept these variables if the constraint in the asm statement is "r".

This fixes most of PR3933.

llvm-svn: 122643
2010-12-30 22:59:32 +00:00
Chris Lattner ad3467ee89 The -fshort-wchar option causes wchar_t to become unsigned, in addition to being
16-bits in size.  Implement this by splitting WChar into two enums, like we have
for char.  This fixes a miscompmilation of XULRunner, PR8856.

llvm-svn: 122558
2010-12-25 23:25:43 +00:00
Dan Gohman f99dbb9e77 Generalize this test to work without instruction names.
llvm-svn: 121742
2010-12-14 01:33:14 +00:00
Dan Gohman c2897692c3 Implement CodeGen support for the may_alias attribute.
llvm-svn: 121734
2010-12-13 23:51:08 +00:00
Devang Patel 00afcbe366 Start using DIBuilder. It provides cleaner interface.
llvm-svn: 121302
2010-12-08 22:42:58 +00:00
Rafael Espindola 0017c5fa92 Fix PR8720 by printing an error message with a substring that the gcc testsuite searches for.
llvm-svn: 121137
2010-12-07 15:23:23 +00:00
John McCall 594827281c Silly special case: never load when dereferencing void*.
llvm-svn: 120905
2010-12-04 12:43:24 +00:00
John McCall ca61b6567b First pass at implementing the intent of ANSI C DR106.
llvm-svn: 120904
2010-12-04 12:29:11 +00:00
John McCall a6f59318c7 Fix this test case on no-asserts builds by not trying to match the basic
block line.

llvm-svn: 120893
2010-12-04 05:19:12 +00:00
John McCall 34376a68c4 Although we currently have explicit lvalue-to-rvalue conversions, they're
not actually frequently used, because ImpCastExprToType only creates a node
if the types differ.  So explicitly create an ICE in the lvalue-to-rvalue
conversion code in DefaultFunctionArrayLvalueConversion() as well as several
other new places, and consistently deal with the consequences throughout the
compiler.

In addition, introduce a new cast kind for loading an ObjCProperty l-value,
and make sure we emit those nodes whenever an ObjCProperty l-value appears
that's not on the LHS of an assignment operator.

This breaks a couple of rewriter tests, which I've x-failed until future
development occurs on the rewriter.

Ted Kremenek kindly contributed the analyzer workarounds in this patch.

llvm-svn: 120890
2010-12-04 03:47:34 +00:00
Peter Collingbourne 0b69e1a628 Implement -cl-single-precision-constant
llvm-svn: 120877
2010-12-04 01:50:56 +00:00
Peter Collingbourne 31587c86c1 Implement -cl-opt-disable
llvm-svn: 120876
2010-12-04 01:50:45 +00:00
Fariborz Jahanian 50198098b9 IR Gen. part of API support for __block cxx
objects imported into blocks. //rdar://8594790.
Will have a test case coming (as well as one
sent to llvm test suite).

llvm-svn: 120713
2010-12-02 17:02:11 +00:00
Chris Lattner 27a3631bac Improve codegen for initializer lists to use memset more aggressively
when an initializer is variable (I handled the constant case in a previous
patch).  This has three pieces:

1. Enhance AggValueSlot to have a 'isZeroed' bit to tell CGExprAgg that
   the memory being stored into has previously been memset to zero.
2. Teach CGExprAgg to not emit stores of zero to isZeroed memory.
3. Teach CodeGenFunction::EmitAggExpr to scan initializers to determine
   whether they are profitable to emit a memset + inividual stores vs
   stores for everything.

The heuristic used is that a global has to be more than 16 bytes and
has to be 3/4 zero to be candidate for this xform.  The two testcases
are illustrative of the scenarios this catches.  We now codegen test9 into:

 call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 400, i32 4, i1 false)
 %.array = getelementptr inbounds [100 x i32]* %Arr, i32 0, i32 0
 %tmp = load i32* %X.addr, align 4
 store i32 %tmp, i32* %.array

and test10 into:

  call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 392, i32 8, i1 false)
  %tmp = getelementptr inbounds %struct.b* %S, i32 0, i32 0
  %tmp1 = getelementptr inbounds %struct.a* %tmp, i32 0, i32 0
  %tmp2 = load i32* %X.addr, align 4
  store i32 %tmp2, i32* %tmp1, align 4
  %tmp5 = getelementptr inbounds %struct.b* %S, i32 0, i32 3
  %tmp10 = getelementptr inbounds %struct.a* %tmp5, i32 0, i32 4
  %tmp11 = load i32* %X.addr, align 4
  store i32 %tmp11, i32* %tmp10, align 4

Previously we produced 99 stores of zero for test9 and also tons for test10.
This xforms should substantially speed up -O0 builds when it kicks in as well
as reducing code size and optimizer heartburn on insane cases.  This resolves
PR279.

llvm-svn: 120692
2010-12-02 07:07:26 +00:00
Eric Christopher 8a2ee390be Add support for the common and nocommon attributes.
rdar://8560647

llvm-svn: 120650
2010-12-02 02:45:55 +00:00
Eric Christopher c629a5c7d0 FileCheckize.
llvm-svn: 120648
2010-12-02 02:30:43 +00:00
Eric Christopher 690c2d1ed6 FileCheckize.
llvm-svn: 120647
2010-12-02 02:13:27 +00:00
Chris Lattner e6af88628f Enhance the init generation logic to emit a memset followed by a few stores when
a global is larger than 32 bytes and has fewer than 6 non-zero values in the
initializer.  Previously we'd turn something like this:

char test8(int X) {
  char str[10000] = "abc";

into a 10K global variable which we then memcpy'd from.  Now we generate:

  %str = alloca [10000 x i8], align 16
  %tmp = getelementptr inbounds [10000 x i8]* %str, i64 0, i64 0
  call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 10000, i32 16, i1 false)
  store i8 97, i8* %tmp, align 16
  %0 = getelementptr [10000 x i8]* %str, i64 0, i64 1
  store i8 98, i8* %0, align 1
  %1 = getelementptr [10000 x i8]* %str, i64 0, i64 2
  store i8 99, i8* %1, align 2

Which is much smaller in space and also likely faster.

This is part of PR279

llvm-svn: 120645
2010-12-02 01:58:41 +00:00
Fariborz Jahanian 3a4ea9a76c Declaring local static in global block
literal declaration caused crash in CodeGen.
This patch fixes it. pr8707

llvm-svn: 120486
2010-11-30 23:07:14 +00:00
Nick Lewycky 5421621d2b Replace \r\n with \n. No functional change.
llvm-svn: 120379
2010-11-30 01:47:38 +00:00
Anders Carlsson 0c75b49dc1 Fix a (probably very old) regression where we weren't using the typedef name for anonymous tag types.
llvm-svn: 120113
2010-11-24 21:05:09 +00:00
John McCall 20c00e0e7b This test does not need to test the alignment of pointers. Make it pass
on 64-bit systems.

llvm-svn: 120014
2010-11-23 10:15:48 +00:00
Francois Pichet ce87a7e45c long => int to make the test pass on system where sizeof(long) = 64.
llvm-svn: 120005
2010-11-23 07:15:13 +00:00
Francois Pichet 0c71f6c5d3 Microsoft C anonymous struct implementation.
Documentation: http://msdn.microsoft.com/en-us/library/z2cx9y4f.aspx

llvm-svn: 120000
2010-11-23 06:07:27 +00:00
Anton Yartsev 3f8f2886c1 comparison of AltiVec vectors now gives bool result (fix for 7533)
llvm-svn: 119678
2010-11-18 03:19:30 +00:00
Bob Wilson db04141f9a Re-enable test with modifications for Neon vector changes in clang.
I mistakenly thought that this was checking for vector name mangling, but
it is not.  Since we're no longer wrapping Neon vectors in structs, this
test can just return a vector directly.  There are already other tests for
that, so just to make this interesting, change the test to return a struct
of two vectors.

llvm-svn: 119434
2010-11-17 00:44:53 +00:00
Bob Wilson 849857445f Temporarily disable this check for Neon vector type mangling.
I'll reenable it soon when I'm done reworking <arm_neon.h>.

llvm-svn: 119366
2010-11-16 19:08:19 +00:00
Chandler Carruth b19289331d This really seems like a boring set of fixes to our tests to make them more
independent of the underlying system. Let me know if any of these are too
aggressive.

llvm-svn: 119345
2010-11-16 10:26:08 +00:00
John McCall 07bb19667a Simplify some complex emission and implement correct semantics for
assignment to volatiles in C.  This in effect reverts some of mjs's
work in and around r72572.  Basically, the C++ standard is quite
clear, except that it lies about volatile behavior approximating
C's, whereas the C standard is almost actively misleading.

llvm-svn: 119344
2010-11-16 10:08:07 +00:00
Fariborz Jahanian c961119dcd Restore these tests. I think I fixed the problem.
We shall see.

llvm-svn: 119158
2010-11-15 17:06:17 +00:00
John McCall 83fe49d1e1 Always emit full loads from volatile complex l-values.
Return the result of a complex assignment with the original values,
not by performing a load from the l-value;  this is the correct
semantics in C, although not in C++.

llvm-svn: 119037
2010-11-14 09:40:28 +00:00
Fariborz Jahanian 9b4dc09746 Removing these test till redo them so they won't depend
on the built compiler.

llvm-svn: 119013
2010-11-13 23:04:46 +00:00
Argyrios Kyrtzidis 8b4cf00cdc Fix the test for Release.
llvm-svn: 118483
2010-11-09 03:43:49 +00:00
Argyrios Kyrtzidis 8909686b22 Fix miscompilation regarding VLAs; subscription of VLA pointers was incorrect.
Fixes rdar://8644873 & http://llvm.org/PR8567.

llvm-svn: 118468
2010-11-09 01:30:48 +00:00
John McCall 2faab302e0 ARM EH uses a different personality function in C.
llvm-svn: 118366
2010-11-07 02:35:25 +00:00
John Thompson 6c2afc8d5d Tests for inline asm constraints, generic and x86.
llvm-svn: 118108
2010-11-02 23:03:52 +00:00
John McCall 23032653d7 Unbreak private_extern, which apparently we had zero tests for.
llvm-svn: 118034
2010-11-02 18:38:13 +00:00
John McCall 565141612f When emitting l-values for bool non-__block decl references, make a pointer
using the memory type;  fixes an assert.

Fixes rdar://problem/8605032

llvm-svn: 117610
2010-10-28 21:37:57 +00:00
John McCall b7139c43ae When computing visibility, use the latest declaration's explicit visibility
attribute.

Part of rdar://problem/8595231

llvm-svn: 117526
2010-10-28 04:18:25 +00:00
John McCall 3a7f6926d1 Restore r117403 (fixing IR gen for bool atomics), this time being less
aggressive about the form we expect bools to be in.  I don't really have
time to fix all the sources right now.

llvm-svn: 117486
2010-10-27 20:58:56 +00:00
Rafael Espindola 9d798a07e4 Revert r117403 as it caused PR8480.
llvm-svn: 117456
2010-10-27 17:13:49 +00:00
John McCall 6bde954f47 Extract procedures to do scalar-to-memory and memory-to-scalar conversions
in IR gen, and use those to fix a correctness issue with bool atomic
intrinsics.  rdar://problem/8461234

llvm-svn: 117403
2010-10-26 22:09:15 +00:00
John McCall 5fe84129e2 A couple of tweaks to the visibility rules:
- tags with C linkage should ignore visibility=hidden
  - functions and variables with explicit visibility attributes should
    ignore the linkage of their types
Either of these should be sufficient to fix PR8457.

Also, FileCheck-ize a test case.

llvm-svn: 117351
2010-10-26 04:59:26 +00:00
Peter Collingbourne a99fdcf93e Implement GNU C extension: two types are compatible if they appear
as a function argument, one of the types is a transparent union type
and the other type is compatible with a union member

llvm-svn: 117243
2010-10-24 18:30:18 +00:00
Bill Wendling 67c5621742 Linux still needs these hacks.
llvm-svn: 116888
2010-10-20 00:12:59 +00:00
Bill Wendling 2bb7c59356 Now that mm_malloc.h was rewritten to *not* include errno.h (see
http://llvm.org/viewvc/llvm-project?rev=116771&view=rev) we can get rid of these
hacks.

llvm-svn: 116853
2010-10-19 20:08:12 +00:00
Michael J. Spencer 8d3f5db7e5 test: FileCheck'ize and document test.
llvm-svn: 116799
2010-10-19 06:39:49 +00:00
Bill Wendling 5cd41c4b13 Reapply r116684 with fixes. The test cases needed to be updated.
llvm-svn: 116696
2010-10-18 03:41:31 +00:00
Anton Yartsev 73d4023114 support for AltiVec extensions from the Cell architecture
llvm-svn: 116478
2010-10-14 14:37:46 +00:00
Chris Lattner 001b29ccc1 Allow a string literal to initialize a tail array (PR8217), patch
by Pierre Habouzit!

llvm-svn: 116165
2010-10-10 17:49:49 +00:00
Argyrios Kyrtzidis 073c9cb592 Implement __builtin_ia32_vec_ext_v2si function (required by Qt).
llvm-svn: 116162
2010-10-10 03:19:11 +00:00
Nico Weber a6bde81bc8 Add support for UCNs for character literals
llvm-svn: 116129
2010-10-09 00:27:47 +00:00
Douglas Gregor 559c9fb134 This patch fixes multiple issues in clang's designated init builder and
completes support for C1X anonymous struct/union init features:

 * Indexed anonymous member initializers should not be expanded. Doing so makes
little sense and would cause unresolvable semantic ambiguity in valid code
(regression introduced by r69153).

 * Subobject initialization of (possibly nested) anonymous members are now
referred to with paths relative to the naming record context, eliminating the
synthesis of incorrect implicit InitListExprs that caused CodeGen to assert.

 * Field lookup was missing a null check in IdentifierInfo comparison which
caused lookup for a known (already resolved) field to match the first unnamed
data member it encountered leading to silent miscompilation.

 * Subobject paths are no longer built using the general purpose
Sema::BuildAnonymousStructUnionMemberPath(). If any corner cases crop up, we
will now assert earlier in Sema instead of passing invalid InitListExprs
through to CodeGen.

Fixes PR6955, from Alp Toker!

llvm-svn: 116098
2010-10-08 20:44:28 +00:00
Daniel Dunbar 29b8fb1771 tests: Force a triple to avoid wchar_t differences.
llvm-svn: 115970
2010-10-07 20:16:00 +00:00
Nico Weber 9762e0a234 Add support for 4-byte UCNs like \U12345678. Warn about UCNs in c90 mode.
llvm-svn: 115743
2010-10-06 04:57:26 +00:00
Bill Wendling 964f521e85 Erm...this isn't the same as PR6658.
llvm-svn: 115737
2010-10-06 03:33:37 +00:00
Bill Wendling 6153d2c7bd MMX conversion work is done. We can remove the FIXMEs.
llvm-svn: 115736
2010-10-06 03:31:26 +00:00
Bill Wendling 8700d39139 Add same hack to mmx-builtins.c as in Headers/c89.c to get it to pass on Win32. PR6658.
llvm-svn: 115735
2010-10-06 03:31:09 +00:00
Bill Wendling a76cdeb783 Do x86_64.
llvm-svn: 115460
2010-10-03 08:34:05 +00:00
Bill Wendling 4a58223401 Test to verify that all of the MMX builtins are handled by the front-end.
llvm-svn: 115459
2010-10-03 03:39:54 +00:00
Dale Johannesen 39d6f4b95c Clang part of MMX rewrite (goes with 115243).
llvm-svn: 115244
2010-09-30 23:57:50 +00:00
Daniel Dunbar 8caf6415a8 Add support for attribute((naked)), patch by Zoxc on cfe-commits!
- Minor style tweaks by me.

llvm-svn: 115056
2010-09-29 18:20:25 +00:00
Fariborz Jahanian 1db5c941ad vla expressions used in __typeof__ must be evaluated.
Fixes rdar://8476159.

llvm-svn: 114982
2010-09-28 20:42:35 +00:00
Fariborz Jahanian 8fb87aec78 Patch implements passing arrays to functions expecting
vla. Implements pr7827.

llvm-svn: 114737
2010-09-24 17:30:16 +00:00
Argyrios Kyrtzidis 719a46bbf1 Don't crash on _Imaginary.
llvm-svn: 114637
2010-09-23 09:40:31 +00:00
Daniel Dunbar 1fae17a8e5 Tweak test to pass -ffreestanding, to avoid platform dependent header issues.
llvm-svn: 114627
2010-09-23 04:40:10 +00:00
Daniel Dunbar 19964dbe3b IRgen/ABI/ARM: Return large vectors in memory.
llvm-svn: 114619
2010-09-23 01:54:32 +00:00
Daniel Dunbar b34b08098c IRgen/ABI/ARM: Trust the backend to pass vectors correctly for the given ABI.
- Therefore, we can lower out the NEON wrapper structs and pass the vectors
   directly. This makes a huge difference in the cleanliness of the IR after
   optimization.
 - I will trust, but verify, via future ABITest testing (for APCS-GNU, at
   least).

llvm-svn: 114618
2010-09-23 01:54:28 +00:00
Devang Patel f063cb49d8 Testcase for r114585.
llvm-svn: 114586
2010-09-22 21:13:48 +00:00
Chris Lattner b2f659b7a0 fix the rest of rdar://8461279 - clang miscompiles address-space qualified atomics
llvm-svn: 114503
2010-09-21 23:40:48 +00:00
Chris Lattner c9066d3072 same bug as before, this time with __sync_val_compare_and_swap.
llvm-svn: 114502
2010-09-21 23:35:30 +00:00
Chris Lattner 7cf46bfda0 fix __sync_bool_compare_and_swap to work with address-space qualified types.
llvm-svn: 114498
2010-09-21 23:24:52 +00:00
Chris Lattner 65dce5eeee filecheckize.
llvm-svn: 114497
2010-09-21 23:22:41 +00:00
Fariborz Jahanian 521c72c756 Fixes an IRgen ICE due to cast of null pointer to
a vla type (fixes pr7827).

llvm-svn: 114495
2010-09-21 22:53:33 +00:00
Fariborz Jahanian 8162d4ad31 Implements in IRgen gnu extensions missing LHS for
complex conditionals. Radar 8453812.

llvm-svn: 114376
2010-09-20 23:50:22 +00:00
Fariborz Jahanian 2b1d88abfb Problem with gnu conditional extension with missing
LHS and when conditional expression is an array. Since
it will be decayed, saved expression must be saved with
decayed expression. This is necessary to preserve semantics
of this extension (and prevent an IRGen crash which expects
an array to always be decayed). I am sure there will be other
cases in c++ (aggregate conditionals for example) when saving of the 
expression must happen after some transformation on conditional
expression has happened. 
Doug, please review.  Fixes // rdar://8446940

llvm-svn: 114296
2010-09-18 19:38:38 +00:00
John Thompson 1224061281 Added '|' delimiter to separate inline asm multiple alternative constraints for Clang side of support.
llvm-svn: 114253
2010-09-18 01:15:13 +00:00
Bill Wendling cbacefd36f Testcase for r114239.
llvm-svn: 114247
2010-09-18 00:26:29 +00:00
Daniel Dunbar 60785eb0f2 Sema/transparent_union: Make sure to add implicit cast when constructing
implicit union values for the transparent_union extension.

llvm-svn: 114236
2010-09-17 23:21:43 +00:00
David Chisnall dd84ef1e62 Add a -ftrapv-handler= option which allows a handler to invoke instead of simply aborting when a signed operation overflows. This mirrors the (GCC-incompatible) behaviour from clang 1.0 and 1.1 when -ftrapv was specified, but allows the handler to be defined for each compilation unit.
llvm-svn: 114192
2010-09-17 18:29:54 +00:00
Argyrios Kyrtzidis d059997000 Use a temporary file for output which gets renamed after all the writing is finished.
This mainly prevents failures and/or crashes when multiple processes try to read/write the same PCH file. (rdar://8392711&8294781); suggestion & review by Daniel!

llvm-svn: 114187
2010-09-17 17:38:48 +00:00
Daniel Dunbar dd38fbc7fb IRgen/ABI/x86-32: Realign indirect arguments when the ABI requires us to pass
them with a smaller alignment than the rest of codegen expects.

llvm-svn: 114115
2010-09-16 20:42:06 +00:00
Daniel Dunbar ed23de3348 IRgen/ABI/x86_32/Darwin: On Darwin, only structures with SSE vector types get passed
with a non-default-stack-ABI-alignment (of 16).
 - This fixes the ABI convenient, but breaks codegen since we now have
   underaligned arguments. Marginal improvement overall though, and will be
   fixed in next commit.

llvm-svn: 114113
2010-09-16 20:42:00 +00:00
Daniel Dunbar 8a6c91ff76 IRgen/x86_32/Linux: Linux seems to align all stack objects to 4 bytes, unlike
Darwin. Checked vs the handiest Linux llvm-gcc I had around, someone on Linux is
welcome to investigate more.

llvm-svn: 114112
2010-09-16 20:41:56 +00:00
Devang Patel 28b5286bda While handling change of file, check if _current_ file is already seen or not. If current file is seen then it indicates that end of previous file's lexical scope.
This fixes radar 8396182.

llvm-svn: 114018
2010-09-15 20:50:40 +00:00
Jakob Stoklund Olesen f7c67d9f46 Revert "Clean up in buildbot directories."
This reverts commit 113814.

This patch was never intended to stay in the repository. If you are reading this
from the future, we apologize for the noise.

llvm-svn: 113990
2010-09-15 18:08:14 +00:00
Benjamin Kramer 6cbfca121b Tweak regex not to accidentally match a trailing \r.
llvm-svn: 113966
2010-09-15 12:31:46 +00:00
Cameron Esfahani 70004ec456 Fix pointer-signext.c test case: it was relying on value names, which don't appear in the non-assert build. Switch to using check-next as well.
llvm-svn: 113964
2010-09-15 10:52:02 +00:00
Cameron Esfahani eb85650e67 Fix Windows64 target info so pointer arithmetic is done correctly, and no sign extension code is emitted: PtrDiffType needs to be a signed long long. Add a corresponding test case.
llvm-svn: 113910
2010-09-15 00:28:12 +00:00
Argyrios Kyrtzidis 9efa1ce145 Fix VLA miscompilation.
llvm.stacksave/llvm.stackrestore wasn't emitted for VLAs in inner scopes.
Fixes r8403108.

llvm-svn: 113822
2010-09-14 00:42:34 +00:00
Jakob Stoklund Olesen 54481e5948 Clean up in buildbot directories.
This test created a statements.ll file until about a month ago. Some buildbots
still have this file in their source dir. This is the easiest way to remove the
file on all bots. Then I'll revert.

llvm-svn: 113814
2010-09-13 23:26:28 +00:00
Eric Christopher 26c045d9ff Try to get this to stop leaving a temporary file on linux.
llvm-svn: 113793
2010-09-13 21:51:42 +00:00
Abramo Bagnara 3aabb4b452 Congruent diagnostic for void* arithmetic.
llvm-svn: 113740
2010-09-13 06:50:07 +00:00
Fariborz Jahanian 56603ef7b2 Have Sema check for validity of CGString literal
instead of asserting in IRGen. Fixes radar 8390459.

llvm-svn: 113253
2010-09-07 19:38:13 +00:00
Dale Johannesen 2002e1f1bf Adjust a test that's expecting optimizations to be done
on MMX palignr; we don't do this for the intrinsics.

llvm-svn: 113234
2010-09-07 18:11:53 +00:00
Chris Lattner 03483613c2 Due to asmparser improvements, this error message is now better
llvm-svn: 113177
2010-09-06 22:09:27 +00:00
Chris Lattner 52bcf96384 move the hackaround for PR6537 to catch unions as well,
fixing the ICE in PR7151

llvm-svn: 113130
2010-09-06 00:13:11 +00:00
Eli Friedman 0b1fbd1394 PR7242: Make sure to use a different context for evaluating constant
initializers, so the result of the evaluation doesn't leak through
inconsistently.  Also, don't evaluate references to variables with
initializers with side-effects.

llvm-svn: 113128
2010-09-06 00:10:32 +00:00
John McCall 56f57589af A constant initializer never matches the type of the variable it's
initializing;  it at best matches the element type of the variable
it's initializing.  Fixes PR8073.

llvm-svn: 112992
2010-09-03 18:58:50 +00:00
Daniel Dunbar 2f8df98c92 IRgen: Fix silly thinko in r112021, which was generating code for the same expr
twice. This showed up as an assert on the odd test case because we generated the
decl map entry twice.

llvm-svn: 112943
2010-09-03 02:07:00 +00:00
Chris Lattner 369721a16e stop looking for #uses comments.
llvm-svn: 112898
2010-09-02 22:48:26 +00:00
Chris Lattner 60c160ff4d remove some tests that aren't adding any value: the check lines don't
make it clear what they're testing so there is no way to know it's right
or to update it.

llvm-svn: 112897
2010-09-02 22:43:55 +00:00
Bill Wendling e6fd79bc1c Newline at end of file.
llvm-svn: 112871
2010-09-02 22:07:07 +00:00
Duncan Sands 7f1982731e Correct this test for the fact that the number of uses is now printed
in a comment.

llvm-svn: 112813
2010-09-02 08:52:56 +00:00
Chris Lattner a48fbe8c53 Fix PR8029, a x86-32 ABI regression in introduced in r112211
llvm-svn: 112537
2010-08-30 22:03:23 +00:00
Chris Lattner 07b71c4eb1 add radar #
llvm-svn: 112212
2010-08-26 20:05:48 +00:00
Chris Lattner d774ae9ed1 fix 2xi16 to pass as i32 instead of <2 x i16>. The former passes in
memory (as required) the later now passes in an xmm register.  This
fixes gcc.dg/compat/vector_1 on x86-32.

llvm-svn: 112211
2010-08-26 20:05:13 +00:00
Chris Lattner 69e683fb35 vector of long and ulong are also classified as INTEGER in x86-64 abi,
this fixes rdar://8358475 a failure of the gcc.dg/compat/vector_1 abi
test.

llvm-svn: 112205
2010-08-26 18:13:50 +00:00
Chris Lattner 46830f2fd6 1 x ulonglong needs to be classified as INTEGER, just like 1 x longlong,
this fixes a miscompilation on the included testcase, rdar://8359248

llvm-svn: 112201
2010-08-26 18:03:20 +00:00
Chris Lattner 51e1cc2fe2 tame an assertion, fixing rdar://8357396
llvm-svn: 112174
2010-08-26 06:28:35 +00:00
Argyrios Kyrtzidis 1f5cfb6446 Revert r112043, static volatiles are removed by the optimizer. Thanks Chris!
llvm-svn: 112112
2010-08-25 23:42:51 +00:00
Chris Lattner 9f8b451876 Finally pass "two floats in a 64-bit unit" as a <2 x float> instead of
as a double in the x86-64 ABI.  This allows us to generate much better
code for certain things, e.g.:

_Complex float f32(_Complex float A, _Complex float B) {
  return A+B;
}

Used to compile into (look at the integer silliness!):

_f32:                                   ## @f32
## BB#0:                                ## %entry
	movd	%xmm1, %rax
	movd	%eax, %xmm1
	movd	%xmm0, %rcx
	movd	%ecx, %xmm0
	addss	%xmm1, %xmm0
	movd	%xmm0, %edx
	shrq	$32, %rax
	movd	%eax, %xmm0
	shrq	$32, %rcx
	movd	%ecx, %xmm1
	addss	%xmm0, %xmm1
	movd	%xmm1, %eax
	shlq	$32, %rax
	addq	%rdx, %rax
	movd	%rax, %xmm0
	ret

Now we get:

_f32:                                   ## @f32
	movdqa	%xmm0, %xmm2
	addss	%xmm1, %xmm2
	pshufd	$16, %xmm2, %xmm2
	pshufd	$1, %xmm1, %xmm1
	pshufd	$1, %xmm0, %xmm0
	addss	%xmm1, %xmm0
	pshufd	$16, %xmm0, %xmm1
	movdqa	%xmm2, %xmm0
	unpcklps	%xmm1, %xmm0
	ret

and compile stuff like:

extern float _Complex ccoshf( float _Complex ) ;
float _Complex ccosf ( float _Complex z ) {
 float _Complex iz;
 (__real__ iz) = -(__imag__ z);
 (__imag__ iz) = (__real__ z);
 return ccoshf(iz);
}

into:

_ccosf:                                 ## @ccosf
## BB#0:                                ## %entry
	pshufd	$1, %xmm0, %xmm1
	xorps	LCPI4_0(%rip), %xmm1
	unpcklps	%xmm0, %xmm1
	movaps	%xmm1, %xmm0
	jmp	_ccoshf                 ## TAILCALL

instead of:

_ccosf:                                 ## @ccosf
## BB#0:                                ## %entry
	movd	%xmm0, %rax
	movq	%rax, %rcx
	shlq	$32, %rcx
	shrq	$32, %rax
	xorl	$-2147483648, %eax      ## imm = 0xFFFFFFFF80000000
	addq	%rcx, %rax
	movd	%rax, %xmm0
	jmp	_ccoshf                 ## TAILCALL


There is still "stuff to be done" here for the struct case,
but this resolves rdar://6379669 - [x86-64 ABI] Pass and return 
_Complex float / double efficiently

llvm-svn: 112111
2010-08-25 23:39:14 +00:00
Argyrios Kyrtzidis b50a088122 Make sure volatile variables are emitted even if static. Fixes rdar://8315219
llvm-svn: 112043
2010-08-25 10:15:24 +00:00
Daniel Dunbar ead6824c3c IRgen: Fix a horrible bug in pointer to bool conversion, which we were treating
as a truncation not a comparison to null.

llvm-svn: 112021
2010-08-25 03:32:38 +00:00
Devang Patel 356e3e0c6a Fix 'for' loop variables' scope.
llvm-svn: 112002
2010-08-25 00:28:56 +00:00
Dale Johannesen 46742a4771 Add some missing X86-specific asm constraint letters, and fix
some bugs in setting allowsRegister on the ones there.
8348447.

llvm-svn: 111980
2010-08-24 22:33:12 +00:00
Devang Patel 41c2097058 Emit debug info for enum constants.
llvm-svn: 111852
2010-08-23 22:07:25 +00:00
John McCall 614dbdcd55 Go back to asking CodeGenTypes whether a type is zero-initializable.
Make CGT defer to the ABI on all member pointer types.
This requires giving CGT a handle to the ABI.
It's way easier to make that work if we avoid lazily creating the ABI.
Make it so.

llvm-svn: 111786
2010-08-22 21:01:12 +00:00
Benjamin Kramer 1e0cb91249 Avoid including mm_malloc.h in a cc1 test, it pulls in system headers.
llvm-svn: 111738
2010-08-21 13:39:38 +00:00
John McCall fed68df76c This test needs a triple: it's checking the alignment of a pointer in bytes.
llvm-svn: 111727
2010-08-21 04:58:16 +00:00
Daniel Dunbar 5c816378f8 IRgen: Set the alignment correctly when creating LValue for a decls.
- Fixes PR5598.
 - Review appreciated.

llvm-svn: 111726
2010-08-21 04:20:22 +00:00
Daniel Dunbar 30eb5fa3ba Improve test coverage.
llvm-svn: 111712
2010-08-21 02:46:28 +00:00
Chris Lattner 9052c35479 fix some vector extractions to return properly zero extended values
(instead of sign extending) to match ICC.  GCC is changing this in 
a series of their own PRs (e.g. 41323).

llvm-svn: 111637
2010-08-20 16:08:33 +00:00
Anton Yartsev 583a1cf7b5 support for predicates with bool/pixel arguments
llvm-svn: 111515
2010-08-19 11:57:49 +00:00
Anton Yartsev fc83c60755 support for the rest of AltiVec functions with bool/pixel arguments and return values (except predicates)
llvm-svn: 111511
2010-08-19 03:21:36 +00:00
Anton Yartsev 9e96898032 support for vec_perm and all dependent functions (vec_mergeh, vec_mergel, vec_pack, vec_sld, vec_splat) with bool/pixel arguments and return values
llvm-svn: 111509
2010-08-19 03:00:09 +00:00
Anton Yartsev 2cc136d4e3 support for vec_add, vec_adds, vec_and, vec_andc with bool arguments
llvm-svn: 111141
2010-08-16 16:22:12 +00:00
Fariborz Jahanian f7f020bb2a Make use of __func__ in a block actually refer to
block's helper function. Fixes radar 7860965.

llvm-svn: 110988
2010-08-13 00:19:55 +00:00
Devang Patel a3025fcd45 update test to reflect r110876 change.
llvm-svn: 110884
2010-08-12 00:00:41 +00:00
John McCall 5996699834 Revise r110163: don't mark weak functions nounwind, because the optimizer
treats that as a contract to be fulfilled by any replacements.

llvm-svn: 110864
2010-08-11 22:38:33 +00:00
Bruno Cardoso Lopes 762e401911 Remove rsqrtps_nr256 and sqrtps_nr256 builtins, at least until we need them
llvm-svn: 110844
2010-08-11 19:18:36 +00:00
Daniel Dunbar 9034aa36c7 ARM: Recognize single precision float register names.
- We don't recognize double or NEON register names yet -- we don't have the
   infrastructure to generate the right clobbers for them.

llvm-svn: 110775
2010-08-11 02:17:20 +00:00
Daniel Dunbar 256e1f3ad0 ARM: Swap which registers we consider real / aliases to match LLVM and llvm-gcc.
llvm-svn: 110774
2010-08-11 02:17:11 +00:00
Bruno Cardoso Lopes 65954ffc69 Remove 256-bit cast built-ins and make the AVX intrinsic call llvm __builtin_shufflevector with the appropriate arguments
llvm-svn: 110771
2010-08-11 02:14:38 +00:00
Bruno Cardoso Lopes a4f1930b75 Remove 256-bit unpack built-ins and make the AVX intrinsic call llvm __builtin_shufflevector with the appropriate arguments
llvm-svn: 110768
2010-08-11 01:43:24 +00:00
Bruno Cardoso Lopes e712a135b7 Remove 256-bit shuffle built-ins and make the AVX intrinsic call llvm __builtin_shufflevector with the appropriate arguments
llvm-svn: 110766
2010-08-11 01:17:34 +00:00
John Thompson 307c2729fd Something's wrong with this test on other platforms. I'll probably need to simplify it later. For now revert.
llvm-svn: 110738
2010-08-10 22:04:00 +00:00
John Thompson a5c7d706b8 Slightly revised handling of mult-alt constraints, to avoid an assert, until we have the full fix.
llvm-svn: 110706
2010-08-10 19:20:14 +00:00
Devang Patel 76e3b53541 Do not use DIGlobalVariable to emit debugging information for enums.
llvm-svn: 110697
2010-08-10 18:27:15 +00:00
Devang Patel e03edfd3e7 Even if a constant's evaluated value is used, emit debug info for the constant variable.
llvm-svn: 110660
2010-08-10 07:24:25 +00:00
Bruno Cardoso Lopes 3d3fc1d075 Make replicate intrinsics use shufflevector instead of dup builtins, also remove the dup builtins
llvm-svn: 110646
2010-08-10 02:23:54 +00:00
Devang Patel 2210aa2eca There is no need to pubish file static variable's name. Do not rely on this code gen bug to check whether debug info is generated for such variables or not.
llvm-svn: 110640
2010-08-10 01:36:24 +00:00
Eric Christopher 6ff7161d51 Thread local variables aren't considered common linkage.
llvm-svn: 110530
2010-08-08 01:37:14 +00:00
Chris Lattner 8139c98cf9 Correct -ftrapv to trap on errors, instead of calling the
__overflow_handler entrypoint that David Chisnall made up.
Calling __overflow_handler is not part of the contract of
-ftrapv provided by GCC, and should never have been checked
in in the first place.

According to:
http://permalink.gmane.org/gmane.comp.compilers.clang.devel/8699

David is using this for some of arbitrary precision integer stuff
or something, which is not an appropriate thing to implement on
this.

llvm-svn: 110490
2010-08-07 00:20:46 +00:00
Chandler Carruth 66ce9651f1 Prevent these tests from dirtying the tree with output files that aren't even
used for the test.

llvm-svn: 110431
2010-08-06 05:29:57 +00:00
Bruno Cardoso Lopes e2538c4ecf We don't want to support built-ins which aren't needed by the intrinsics. Remove them
llvm-svn: 110399
2010-08-05 23:47:43 +00:00
John McCall a9731a4179 Fix a major bug with -ftrapv and ++/--. Patch by David Keaton!
llvm-svn: 110347
2010-08-05 17:39:44 +00:00
Eli Friedman d986fc8b48 Tests for #pragma GCC visibility.
llvm-svn: 110316
2010-08-05 07:00:53 +00:00
Bruno Cardoso Lopes 6586724f71 Add more AVX 256-bit intrinsics and test cases for them
llvm-svn: 110178
2010-08-04 01:11:26 +00:00
John McCall f8280e723d Fix a warning on a test.
llvm-svn: 110165
2010-08-03 22:49:45 +00:00
John McCall 8601a75118 Do a very simple pass over every function we emit to infer whether we can
mark it nounwind based on whether it contains any non-nounwind calls.
<rdar://problem/8087431>

llvm-svn: 110163
2010-08-03 22:46:07 +00:00
Bruno Cardoso Lopes 1f927ccaa2 Support x86 AVX 256-bit instructions built-ins. Right now support all of them, but
as soon as we properly codegen the simple vector operations, remove the
unnecessary built-ins/intrinsics from clang and llvm. Also add tests for the new
built-ins

llvm-svn: 110096
2010-08-03 01:57:18 +00:00
John McCall a95172baa0 Only run the jump-checker if there's a branch-protected scope *and* there's
a switch or goto somewhere in the function.  Indirect gotos trigger the
jump-checker regardless, because the conditions there are slightly more
elaborate and it's too marginal a case to be worth optimizing.

Turns off the jump-checker in a lot of cases in C++.  rdar://problem/7702918

llvm-svn: 109962
2010-08-01 00:26:45 +00:00
Daniel Dunbar b8cba97cde There is no reason for this test to invoke 'llc'.
llvm-svn: 109847
2010-07-30 03:30:55 +00:00
Chris Lattner 7f4b81af7a fix rdar://8251384, another case where we could access beyond the
end of a struct.  This improves the case when the struct being passed
contains 3 floats, either due to a struct or array of 3 things.  Before
we'd generate this IR for the testcase:

define float @bar(double %X.coerce0, double %X.coerce1) nounwind {
entry:
  %X = alloca %struct.foof, align 8               ; <%struct.foof*> [#uses=2]
  %0 = bitcast %struct.foof* %X to %1*            ; <%1*> [#uses=2]
  %1 = getelementptr %1* %0, i32 0, i32 0         ; <double*> [#uses=1]
  store double %X.coerce0, double* %1
  %2 = getelementptr %1* %0, i32 0, i32 1         ; <double*> [#uses=1]
  store double %X.coerce1, double* %2
  %tmp = getelementptr inbounds %struct.foof* %X, i32 0, i32 2 ; <float*> [#uses=1]
  %tmp1 = load float* %tmp                        ; <float> [#uses=1]
  ret float %tmp1
}

which compiled (with optimization) to:

_bar:                                   ## @bar
## BB#0:                                ## %entry
	movd	%xmm1, %rax
	movd	%eax, %xmm0
	ret

Now we produce:

define float @bar(double %X.coerce0, float %X.coerce1) nounwind {
entry:
  %X = alloca %struct.foof, align 8               ; <%struct.foof*> [#uses=2]
  %0 = bitcast %struct.foof* %X to %0*            ; <%0*> [#uses=2]
  %1 = getelementptr %0* %0, i32 0, i32 0         ; <double*> [#uses=1]
  store double %X.coerce0, double* %1
  %2 = getelementptr %0* %0, i32 0, i32 1         ; <float*> [#uses=1]
  store float %X.coerce1, float* %2
  %tmp = getelementptr inbounds %struct.foof* %X, i32 0, i32 2 ; <float*> [#uses=1]
  %tmp1 = load float* %tmp                        ; <float> [#uses=1]
  ret float %tmp1
}

and:

_bar:                                   ## @bar
## BB#0:                                ## %entry
	movaps	%xmm1, %xmm0
	ret

llvm-svn: 109776
2010-07-29 18:13:09 +00:00
Chris Lattner 3f76342cfc handle a case where we could access off the end of a function
that Eli pointed out, rdar://8249586

llvm-svn: 109762
2010-07-29 17:34:39 +00:00
Chris Lattner 44f9c3b3f1 in release mode, irbuilder doesn't add names to instructions,
this will hopefully fix the osuosl clang-i686-darwin10 builder.

llvm-svn: 109760
2010-07-29 17:14:05 +00:00
Chris Lattner 98076a25ce This is a little bit far, but optimize cases like:
struct a {
  struct c {
    double x;
    int y;
  } x[1];
};

void foo(struct a A) {
}

into:

define void @foo(double %A.coerce0, i32 %A.coerce1) nounwind {
entry:
  %A = alloca %struct.a, align 8                  ; <%struct.a*> [#uses=1]
  %0 = bitcast %struct.a* %A to %struct.c*        ; <%struct.c*> [#uses=2]
  %1 = getelementptr %struct.c* %0, i32 0, i32 0  ; <double*> [#uses=1]
  store double %A.coerce0, double* %1
  %2 = getelementptr %struct.c* %0, i32 0, i32 1  ; <i32*> [#uses=1]
  store i32 %A.coerce1, i32* %2

instead of:

define void @foo(double %A.coerce0, i64 %A.coerce1) nounwind {
entry:
  %A = alloca %struct.a, align 8                  ; <%struct.a*> [#uses=1]
  %0 = bitcast %struct.a* %A to %0*               ; <%0*> [#uses=2]
  %1 = getelementptr %0* %0, i32 0, i32 0         ; <double*> [#uses=1]
  store double %A.coerce0, double* %1
  %2 = getelementptr %0* %0, i32 0, i32 1         ; <i64*> [#uses=1]
  store i64 %A.coerce1, i64* %2

I only do this now because I never want to look at this code again :)
 

llvm-svn: 109738
2010-07-29 07:43:55 +00:00
Chris Lattner c8b7b53a1e implement a todo: pass a eight-byte that consists of a
small integer + padding as that small integer.  On code
like:

struct c { double x; int y; };
void bar(struct c C) { }

This means that we compile to:

define void @bar(double %C.coerce0, i32 %C.coerce1) nounwind {
entry:
  %C = alloca %struct.c, align 8                  ; <%struct.c*> [#uses=2]
  %0 = getelementptr %struct.c* %C, i32 0, i32 0  ; <double*> [#uses=1]
  store double %C.coerce0, double* %0
  %1 = getelementptr %struct.c* %C, i32 0, i32 1  ; <i32*> [#uses=1]
  store i32 %C.coerce1, i32* %1

instead of:

define void @bar(double %C.coerce0, i64 %C.coerce1) nounwind {
entry:
  %C = alloca %struct.c, align 8                  ; <%struct.c*> [#uses=3]
  %0 = bitcast %struct.c* %C to %0*               ; <%0*> [#uses=2]
  %1 = getelementptr %0* %0, i32 0, i32 0         ; <double*> [#uses=1]
  store double %C.coerce0, double* %1
  %2 = getelementptr %0* %0, i32 0, i32 1         ; <i64*> [#uses=1]
  store i64 %C.coerce1, i64* %2

which gives SRoA heartburn.

This implements rdar://5711709, a nice low number :)

llvm-svn: 109737
2010-07-29 07:30:00 +00:00
Chris Lattner fe34c1d53e Kill off the 'coerce' ABI passing form. Now 'direct' and 'extend' always
have a "coerce to" type which often matches the default lowering of Clang
type to LLVM IR type, but the coerce case can be handled by making them
not be the same.

This simplifies things and fixes issues where X86-64 abi lowering would 
return coerce after making preferred types exactly match up.  This caused
us to compile:

typedef float v4f32 __attribute__((__vector_size__(16)));
v4f32 foo(v4f32 X) {
  return X+X;
}

into this code at -O0:

define <4 x float> @foo(<4 x float> %X.coerce) nounwind {
entry:
  %retval = alloca <4 x float>, align 16          ; <<4 x float>*> [#uses=2]
  %coerce = alloca <4 x float>, align 16          ; <<4 x float>*> [#uses=2]
  %X.addr = alloca <4 x float>, align 16          ; <<4 x float>*> [#uses=3]
  store <4 x float> %X.coerce, <4 x float>* %coerce
  %X = load <4 x float>* %coerce                  ; <<4 x float>> [#uses=1]
  store <4 x float> %X, <4 x float>* %X.addr
  %tmp = load <4 x float>* %X.addr                ; <<4 x float>> [#uses=1]
  %tmp1 = load <4 x float>* %X.addr               ; <<4 x float>> [#uses=1]
  %add = fadd <4 x float> %tmp, %tmp1             ; <<4 x float>> [#uses=1]
  store <4 x float> %add, <4 x float>* %retval
  %0 = load <4 x float>* %retval                  ; <<4 x float>> [#uses=1]
  ret <4 x float> %0
}

Now we get:

define <4 x float> @foo(<4 x float> %X) nounwind {
entry:
  %X.addr = alloca <4 x float>, align 16          ; <<4 x float>*> [#uses=3]
  store <4 x float> %X, <4 x float>* %X.addr
  %tmp = load <4 x float>* %X.addr                ; <<4 x float>> [#uses=1]
  %tmp1 = load <4 x float>* %X.addr               ; <<4 x float>> [#uses=1]
  %add = fadd <4 x float> %tmp, %tmp1             ; <<4 x float>> [#uses=1]
  ret <4 x float> %add
}

This implements rdar://8248065

llvm-svn: 109733
2010-07-29 06:26:06 +00:00
Chris Lattner 9fa15c3608 ignore structs that wrap vectors in IR, the abstraction shouldn't add penalty.
Before we'd compile the example into something like:

  %coerce.dive2 = getelementptr %struct.v4f32wrapper* %retval, i32 0, i32 0 ; <<4 x float>*> [#uses=1]
  %1 = bitcast <4 x float>* %coerce.dive2 to <2 x double>* ; <<2 x double>*> [#uses=1]
  %2 = load <2 x double>* %1, align 1             ; <<2 x double>> [#uses=1]
  ret <2 x double> %2

Now we produce:

  %coerce.dive2 = getelementptr %struct.v4f32wrapper* %retval, i32 0, i32 0 ; <<4 x float>*> [#uses=1]
  %0 = load <4 x float>* %coerce.dive2, align 1   ; <<4 x float>> [#uses=1]
  ret <4 x float> %0

llvm-svn: 109732
2010-07-29 05:02:29 +00:00
Chris Lattner 4200fe4e50 move the 'pretty 16-byte vector' inferring code up to be shared
with return values, improving stuff that returns __m128 etc.

llvm-svn: 109731
2010-07-29 04:56:46 +00:00
Chris Lattner 3a44c7e55d now that we have CGT around, we can start using preferred types
for return values too.  Instead of compiling something like:

struct foo {
  int *X;
  float *Y;
};

struct foo test(struct foo *P) { return *P; }

to:

%1 = type { i64, i64 }

define %1 @test(%struct.foo* %P) nounwind {
entry:
  %retval = alloca %struct.foo, align 8           ; <%struct.foo*> [#uses=2]
  %P.addr = alloca %struct.foo*, align 8          ; <%struct.foo**> [#uses=2]
  store %struct.foo* %P, %struct.foo** %P.addr
  %tmp = load %struct.foo** %P.addr               ; <%struct.foo*> [#uses=1]
  %tmp1 = bitcast %struct.foo* %retval to i8*     ; <i8*> [#uses=1]
  %tmp2 = bitcast %struct.foo* %tmp to i8*        ; <i8*> [#uses=1]
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 16, i32 8, i1 false)
  %0 = bitcast %struct.foo* %retval to %1*        ; <%1*> [#uses=1]
  %1 = load %1* %0, align 1                       ; <%1> [#uses=1]
  ret %1 %1
}

We now get the result more type safe, with:

define %struct.foo @test(%struct.foo* %P) nounwind {
entry:
  %retval = alloca %struct.foo, align 8           ; <%struct.foo*> [#uses=2]
  %P.addr = alloca %struct.foo*, align 8          ; <%struct.foo**> [#uses=2]
  store %struct.foo* %P, %struct.foo** %P.addr
  %tmp = load %struct.foo** %P.addr               ; <%struct.foo*> [#uses=1]
  %tmp1 = bitcast %struct.foo* %retval to i8*     ; <i8*> [#uses=1]
  %tmp2 = bitcast %struct.foo* %tmp to i8*        ; <i8*> [#uses=1]
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 16, i32 8, i1 false)
  %0 = load %struct.foo* %retval                  ; <%struct.foo> [#uses=1]
  ret %struct.foo %0
}

That memcpy is completely terrible, but I don't know how to fix it.

llvm-svn: 109729
2010-07-29 04:46:19 +00:00
Chris Lattner f4ba08aeaf pass argument vectors in a type that corresponds to the user type if
possible.  This improves the example to pass <4 x float> instead of
<2 x double> but we still get awful code, and still don't get the
return value right.

llvm-svn: 109700
2010-07-28 23:47:21 +00:00
Chris Lattner 31faff5d58 use Get8ByteTypeAtOffset for the return value path as well so we
don't get errors similar to PR7714 on the return path.

llvm-svn: 109689
2010-07-28 23:06:14 +00:00
Chris Lattner 4c1e484f39 fix PR7714 by not referencing off the end of a struct when passed by value in
x86-64 abi.  This also improves codegen as well.  Some refactoring is needed of
this code.

llvm-svn: 109681
2010-07-28 22:15:08 +00:00
Fariborz Jahanian d5010898ab Fix flags in global block descriptor when
block returns structs. Fies radar 8241648.
Executable test added to llvm test suite.

llvm-svn: 109620
2010-07-28 19:07:18 +00:00
Fariborz Jahanian 0ebca28f1d 2nd argument of __builtin_expect must be evaluated
if it hs side-effect to matchgcc's behaviour.
Addresses radar 8172109.

llvm-svn: 109467
2010-07-26 23:11:03 +00:00
John McCall a464ff9d15 Switch some random local-decl cleanups over to using lazy cleanups. Turn on
the block-release unwind cleanup:  we're never going to test it if we don't turn
it on.

llvm-svn: 108992
2010-07-21 06:13:08 +00:00
Chandler Carruth 3973af797a Fix a goof in my previous patch -- not all of the builtins return a value, some
fixed return types.

llvm-svn: 108657
2010-07-18 20:54:12 +00:00
Chandler Carruth bc8cab16c5 Improve the representation of the atomic builtins in a few ways. First, we make
their call expressions synthetically have the "deduced" types based on their
first argument. We only insert conversions in the AST for arguments whose
values require conversion to match the value type expected. This keeps PR7600
closed by maintaining the return type, but avoids assertions due to unexpected
implicit casts making the type unsigned (test case added from Daniel).

The magic is moved into the codegen for the atomic builtin which inserts the
casts as needed at the IR level to raise the type to an integer suitable for
the LLVM intrinsic. This shouldn't cause any real change in functionality, but
now we can make the builtin be more truly polymorphic.

llvm-svn: 108638
2010-07-18 07:23:17 +00:00
Eli Friedman eca55afea3 Fix for PR3800: make sure not to evaluate the expression for a read-write
asm operand twice.

llvm-svn: 108489
2010-07-16 00:55:21 +00:00
Daniel Dunbar 999daa57c7 Builtins/ARM: __clear_cache doesn't seem to have a consistent prototype, declare
the builtin as void __clear_cache(...) to workaround this, which appears to
match what GCC does.

llvm-svn: 108487
2010-07-16 00:31:23 +00:00
Daniel Dunbar 3348e2d175 IRgen: Support user defined attributes on block runtime functions.
- This issue here is that /usr/include/Blocks.h wants to define some of the
   block runtime globals as weak, depending on the target. This doesn't work in
   Clang because we aren't using the AST decl for these globals.

 - The fix is a pretty gross hack which just watches all the decls for the
   specific blocks globals we need to know about; if we see one we use it,
   otherwise we use the hand coded type.

   In time, I would like to clean this up by changing IRgen to ask Sema/AST for
   the decl, which would then be lazily loaded from the builtin table if
   necessary. This could be used in a whole host of places in IRgen and would
   get rid of a lot of grotty hand coding of LLVM IR; however, we need some
   extra Sema support for this as well as support for builtin global variables.

llvm-svn: 108482
2010-07-16 00:00:19 +00:00
Douglas Gregor c5dded5f99 Improve test case. Thanks Eli
llvm-svn: 108470
2010-07-15 23:04:05 +00:00
Douglas Gregor 8997690ff1 Don't suppress the emission of available_externally functions marked
with always_inline attribute. Thanks to Howard for the tip.

llvm-svn: 108469
2010-07-15 22:58:18 +00:00
Douglas Gregor 603d81bf8d When forming a function call or message send expression, be sure to
strip cv-qualifiers from the expression's type when the language calls
for it: in C, that's all the time, while C++ only does it for
non-class types. 

Centralized the computation of the call expression type in
QualType::getCallResultType() and some helper functions in other nodes
(FunctionDecl, ObjCMethodDecl, FunctionType), and updated all relevant
callers of getResultType() to getCallResultType().

Fixes PR7598 and PR7463, along with a bunch of getResultType() call
sites that weren't stripping references off the result type (nothing
stripped cv-qualifiers properly before this change).

llvm-svn: 108234
2010-07-13 08:18:22 +00:00
Douglas Gregor a700f68828 Reinstate the optimization suppressing available_externally functions
at -O0. The only change from the previous patch is that we don't try
to generate virtual method thunks for an available_externally
function.

llvm-svn: 108230
2010-07-13 06:02:28 +00:00
Douglas Gregor 553f3a9b30 Speculatively revert r108156; it appears to be breaking self-host.
llvm-svn: 108194
2010-07-12 21:08:32 +00:00
Douglas Gregor dbb2806a7b Do not generate LLVM IR for available_externally function bodies at
-O0, since we won't be using the definitions for anything anyway. For
lib/System/Path.o when built in Debug+Asserts mode, this leads to a 4%
improvement in compile time (and suppresses 440 function bodies).

<rdar://problem/7987644>

llvm-svn: 108156
2010-07-12 17:24:55 +00:00
Chris Lattner 33919e7450 fix PR7280 by making the warning on code like this:
int test1() {
  return;
}

default to an error.

llvm-svn: 108108
2010-07-11 23:34:02 +00:00
Chris Lattner 06801d7371 allow this to pass on 32-bit hosts.
llvm-svn: 107845
2010-07-08 00:23:21 +00:00
Chris Lattner cb7696cf35 fix the clang side of PR7437: EmitAggregateCopy
was not producing a memcpy with the right address
spaces because of two places in it doing casts of
the arguments to i8, one of which that didn't
preserve the address space.

There is also an optimizer bug here.

llvm-svn: 107842
2010-07-08 00:07:45 +00:00
Chris Lattner 26b1a19842 filecheckize this test.
llvm-svn: 107841
2010-07-08 00:05:45 +00:00
John McCall 11086fcb65 Don't consider casted non-global pointers to be evaluatable.
Fixes rdar://problem/8154689

llvm-svn: 107755
2010-07-07 05:08:32 +00:00
Chris Lattner c401de9998 in the "coerce" case, the ABI handling code ends up making the
alloca for an argument.  Make sure the argument gets the proper
decl alignment, which may be different than the type alignment.

This fixes PR7567

llvm-svn: 107627
2010-07-05 20:21:00 +00:00
Chris Lattner 53b479ff6a fix PR7564 a cast where the bitfield struct init code
wasn't handling array padding elements right.

llvm-svn: 107621
2010-07-05 18:03:30 +00:00
Chris Lattner 0e7929f30c fix rdar://8147692 - yet another crash due to my abi work.
llvm-svn: 107387
2010-07-01 06:20:47 +00:00
Daniel Dunbar bb7ac52e02 Driver/IRgen: Add support for -momit-leaf-frame-pointer.
llvm-svn: 107367
2010-07-01 01:31:45 +00:00
Chris Lattner 5c740f1523 Reapply:
r107173, "fix PR7519: after thrashing around and remembering how all this stuff"
r107216, "fix PR7523, which was caused by the ABI code calling ConvertType instead"

This includes a fix to make ConvertTypeForMem handle the "recursive" case, and call
it as such when lowering function types which have an indirect result.

llvm-svn: 107310
2010-06-30 19:14:05 +00:00
Daniel Dunbar e422266926 Revert r107173, "fix PR7519: after thrashing around and remembering how all this stuff", it broke bootstrap.
llvm-svn: 107232
2010-06-30 00:22:35 +00:00
Daniel Dunbar c85ea8e175 IRgen: Assignment to Objective-C properties shouldn't reload the value (which
would trigger an extra method call).
 - While in the area, I also changed Clang to not emit an unnecessary load from
   'x' in cases like 'y = (x = 1)'.

llvm-svn: 107210
2010-06-29 22:00:45 +00:00
Daniel Dunbar 99e13101b2 tests: Fix test to not depend on instruction names.
llvm-svn: 107186
2010-06-29 18:34:40 +00:00
Chris Lattner ab1e65e2ea fix PR7519: after thrashing around and remembering how all this stuff
works, the fix is quite simple: just make sure to call ConvertTypeRecursive
when the function type being lowered is in the midst of ConvertType.

llvm-svn: 107173
2010-06-29 17:56:33 +00:00
Chris Lattner 22a931e3bb Change X86_64ABIInfo to have ASTContext and TargetData ivars to
avoid passing ASTContext down through all the methods it has.

When classifying an argument, or argument piece, as INTEGER, check
to see if we have a pointer at exactly the same offset in the 
preferred type.  If so, use that pointer type instead of i64.  This
allows us to compile A function taking a stringref into something
like this:

define i8* @foo(i64 %D.coerce0, i8* %D.coerce1) nounwind ssp {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=4]
  %0 = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  store i64 %D.coerce0, i64* %0
  %1 = getelementptr %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
  store i8* %D.coerce1, i8** %1
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
  %tmp3 = load i8** %tmp2                         ; <i8*> [#uses=1]
  %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1]
  ret i8* %add.ptr
}

instead of this:

define i8* @foo(i64 %D.coerce0, i64 %D.coerce1) nounwind ssp {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=3]
  %0 = insertvalue %0 undef, i64 %D.coerce0, 0    ; <%0> [#uses=1]
  %1 = insertvalue %0 %0, i64 %D.coerce1, 1       ; <%0> [#uses=1]
  %2 = bitcast %struct.DeclGroup* %D to %0*       ; <%0*> [#uses=1]
  store %0 %1, %0* %2, align 1
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
  %tmp3 = load i8** %tmp2                         ; <i8*> [#uses=1]
  %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1]
  ret i8* %add.ptr
}

This implements rdar://7375902 - [codegen quality] clang x86-64 ABI lowering code punishing StringRef

llvm-svn: 107123
2010-06-29 06:01:59 +00:00
Chris Lattner 9e748e9d6e add IR names to coerced arguments.
llvm-svn: 107105
2010-06-29 00:14:52 +00:00
Chris Lattner 3dd716c3c3 Change CGCall to handle the "coerce" case where the coerce-to type
is a FCA to pass each of the elements as individual scalars.  This
produces code fast isel is less likely to reject and is easier on
the optimizers.

For example, before we would compile:
struct DeclGroup { long NumDecls; char * Y; };
char * foo(DeclGroup D) {
  return D.NumDecls+D.Y;
}

to:
%struct.DeclGroup = type { i64, i64 }

define i64 @_Z3foo9DeclGroup(%struct.DeclGroup) nounwind {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=3]
  store %struct.DeclGroup %0, %struct.DeclGroup* %D, align 1
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
  %tmp3 = load i64* %tmp2                         ; <i64> [#uses=1]
  %add = add nsw i64 %tmp1, %tmp3                 ; <i64> [#uses=1]
  ret i64 %add
}

Now we get:

%0 = type { i64, i64 }
%struct.DeclGroup = type { i64, i8* }

define i8* @_Z3foo9DeclGroup(i64, i64) nounwind {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=3]
  %2 = insertvalue %0 undef, i64 %0, 0            ; <%0> [#uses=1]
  %3 = insertvalue %0 %2, i64 %1, 1               ; <%0> [#uses=1]
  %4 = bitcast %struct.DeclGroup* %D to %0*       ; <%0*> [#uses=1]
  store %0 %3, %0* %4, align 1
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
  %tmp3 = load i8** %tmp2                         ; <i8*> [#uses=1]
  %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1]
  ret i8* %add.ptr
}

Elimination of the FCA inside the function is still-to-come.

llvm-svn: 107099
2010-06-28 23:44:11 +00:00
Chris Lattner a7d81ab7f3 X86-64:
pass/return structs of float/int as float/i32 instead of double/i64
to make the code generated for ABI cleaner.  Passing in the low part
of a double is the same as passing in a float.

For example, we now compile:

struct DeclGroup { float NumDecls; };
float foo(DeclGroup D);
void bar(DeclGroup *D) {
 foo(*D);
}

into:

%struct.DeclGroup = type { float }

define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind {
entry:
  %D.addr = alloca %struct.DeclGroup*, align 8    ; <%struct.DeclGroup**> [#uses=2]
  %agg.tmp = alloca %struct.DeclGroup, align 4    ; <%struct.DeclGroup*> [#uses=2]
  store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
  %tmp = load %struct.DeclGroup** %D.addr         ; <%struct.DeclGroup*> [#uses=1]
  %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
  %tmp2 = bitcast %struct.DeclGroup* %tmp to i8*  ; <i8*> [#uses=1]
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
  %coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <float*> [#uses=1]
  %0 = load float* %coerce.dive, align 1          ; <float> [#uses=1]
  %call = call float @_Z3foo9DeclGroup(float %0)  ; <float> [#uses=0]
  ret void
}

instead of:

%struct.DeclGroup = type { float }

define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind {
entry:
  %D.addr = alloca %struct.DeclGroup*, align 8    ; <%struct.DeclGroup**> [#uses=2]
  %agg.tmp = alloca %struct.DeclGroup, align 4    ; <%struct.DeclGroup*> [#uses=2]
  %tmp3 = alloca double                           ; <double*> [#uses=2]
  store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
  %tmp = load %struct.DeclGroup** %D.addr         ; <%struct.DeclGroup*> [#uses=1]
  %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
  %tmp2 = bitcast %struct.DeclGroup* %tmp to i8*  ; <i8*> [#uses=1]
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
  %coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <float*> [#uses=1]
  %0 = bitcast double* %tmp3 to float*            ; <float*> [#uses=1]
  %1 = load float* %coerce.dive                   ; <float> [#uses=1]
  store float %1, float* %0, align 1
  %2 = load double* %tmp3                         ; <double> [#uses=1]
  %call = call float @_Z3foo9DeclGroup(double %2) ; <float> [#uses=0]
  ret void
}

which is this machine code (at -O0):

__Z3barP9DeclGroup:
	subq	$24, %rsp
	movq	%rdi, 16(%rsp)
	movq	16(%rsp), %rdi
	leaq	8(%rsp), %rax
	movl	(%rdi), %ecx
	movl	%ecx, (%rax)
	movss	8(%rsp), %xmm0
	callq	__Z3foo9DeclGroup
	addq	$24, %rsp
	ret

vs this:

__Z3barP9DeclGroup:
	subq	$24, %rsp
	movq	%rdi, 16(%rsp)
	movq	16(%rsp), %rdi
	leaq	8(%rsp), %rax
	movl	(%rdi), %ecx
	movl	%ecx, (%rax)
	movss	8(%rsp), %xmm0
	movss	%xmm0, (%rsp)
	movsd	(%rsp), %xmm0
	callq	__Z3foo9DeclGroup
	addq	$24, %rsp
	ret

At -O3, it is the difference between this now:

__Z3barP9DeclGroup:
	movss	(%rdi), %xmm0
	jmp	__Z3foo9DeclGroup  # TAILCALL

vs this before:

__Z3barP9DeclGroup:
	movl	(%rdi), %eax
	movd	%rax, %xmm0
	jmp	__Z3foo9DeclGroup  # TAILCALL

llvm-svn: 107048
2010-06-28 19:56:59 +00:00
Fariborz Jahanian 36ad0e99d5 Have __func__ and siblings point to block's implementation function
name. Fixes radar 7860965.

llvm-svn: 107044
2010-06-28 18:58:34 +00:00
Chris Lattner d250b8e9a8 tweak test to pass on windows
llvm-svn: 107040
2010-06-28 18:29:14 +00:00
Chris Lattner c1028f689e Fix UnitTests/2004-02-02-NegativeZero.c, which regressed when
I broke negate of FP values.

llvm-svn: 107019
2010-06-28 17:12:37 +00:00
Chris Lattner 055097f024 If coercing something from int or pointer type to int or pointer type
(potentially after unwrapping it from a struct) do it without going through
memory.  We now compile:

struct DeclGroup {
  unsigned NumDecls;
};

int foo(DeclGroup D) {
  return D.NumDecls;
}

into:

%struct.DeclGroup = type { i32 }

define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
  %D = alloca %struct.DeclGroup, align 4          ; <%struct.DeclGroup*> [#uses=2]
  %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %coerce.val.ii = trunc i64 %0 to i32            ; <i32> [#uses=1]
  store i32 %coerce.val.ii, i32* %coerce.dive
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %tmp1 = load i32* %tmp                          ; <i32> [#uses=1]
  ret i32 %tmp1
}

instead of:

%struct.DeclGroup = type { i32 }

define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
  %D = alloca %struct.DeclGroup, align 4          ; <%struct.DeclGroup*> [#uses=2]
  %tmp = alloca i64                               ; <i64*> [#uses=2]
  %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  store i64 %0, i64* %tmp
  %1 = bitcast i64* %tmp to i32*                  ; <i32*> [#uses=1]
  %2 = load i32* %1, align 1                      ; <i32> [#uses=1]
  store i32 %2, i32* %coerce.dive
  %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %tmp2 = load i32* %tmp1                         ; <i32> [#uses=1]
  ret i32 %tmp2
}

... which is quite a bit less terrifying.

llvm-svn: 106975
2010-06-27 06:26:04 +00:00
Chris Lattner 895c52ba8b Same patch as the previous on the store side. Before we compiled this:
struct DeclGroup {
  unsigned NumDecls;
};

int foo(DeclGroup D) {
  return D.NumDecls;
}

to:

%struct.DeclGroup = type { i32 }

define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
  %D = alloca %struct.DeclGroup, align 4          ; <%struct.DeclGroup*> [#uses=2]
  %tmp = alloca i64                               ; <i64*> [#uses=2]
  store i64 %0, i64* %tmp
  %1 = bitcast i64* %tmp to %struct.DeclGroup*    ; <%struct.DeclGroup*> [#uses=1]
  %2 = load %struct.DeclGroup* %1, align 1        ; <%struct.DeclGroup> [#uses=1]
  store %struct.DeclGroup %2, %struct.DeclGroup* %D
  %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %tmp2 = load i32* %tmp1                         ; <i32> [#uses=1]
  ret i32 %tmp2
}

which caused fast isel bailouts due to the FCA load/store of %2.  Now
we generate this just blissful code:

%struct.DeclGroup = type { i32 }

define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
  %D = alloca %struct.DeclGroup, align 4          ; <%struct.DeclGroup*> [#uses=2]
  %tmp = alloca i64                               ; <i64*> [#uses=2]
  %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  store i64 %0, i64* %tmp
  %1 = bitcast i64* %tmp to i32*                  ; <i32*> [#uses=1]
  %2 = load i32* %1, align 1                      ; <i32> [#uses=1]
  store i32 %2, i32* %coerce.dive
  %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %tmp2 = load i32* %tmp1                         ; <i32> [#uses=1]
  ret i32 %tmp2
}

This avoids fastisel bailing out and is groundwork for future patch.
This reduces bailouts on CGStmt.ll to 911 from 935.

llvm-svn: 106974
2010-06-27 06:04:18 +00:00
Chris Lattner e01d966ce2 merge two tests.
llvm-svn: 106971
2010-06-27 01:08:03 +00:00
Chris Lattner 3fcc790cd8 Change IR generation for return (in the simple case) to avoid doing silly
load/store nonsense in the epilog.  For example, for:

int foo(int X) {
  int A[100];
  return A[X];
}

we used to generate:

  %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i64 %idxprom ; <i32*> [#uses=1]
  %tmp1 = load i32* %arrayidx                     ; <i32> [#uses=1]
  store i32 %tmp1, i32* %retval
  %0 = load i32* %retval                          ; <i32> [#uses=1]
  ret i32 %0
}

which codegen'd to this code:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	subq	$408, %rsp              ## imm = 0x198
	movl	%edi, 400(%rsp)
	movl	400(%rsp), %edi
	movslq	%edi, %rax
	movl	(%rsp,%rax,4), %edi
	movl	%edi, 404(%rsp)
	movl	404(%rsp), %eax
	addq	$408, %rsp              ## imm = 0x198
	ret

Now we generate:

  %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i64 %idxprom ; <i32*> [#uses=1]
  %tmp1 = load i32* %arrayidx                     ; <i32> [#uses=1]
  ret i32 %tmp1
}

and:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	subq	$408, %rsp              ## imm = 0x198
	movl	%edi, 404(%rsp)
	movl	404(%rsp), %edi
	movslq	%edi, %rax
	movl	(%rsp,%rax,4), %eax
	addq	$408, %rsp              ## imm = 0x198
	ret

This actually does matter, cutting out 2000 lines of IR from CGStmt.ll 
for example.

Another interesting effect is that altivec.h functions which are dead
now get dce'd by the inliner.  Hence all the changes to 
builtins-ppc-altivec.c to ensure the calls aren't dead.

llvm-svn: 106970
2010-06-27 01:06:27 +00:00
Chris Lattner 6c5abe88bf Implement rdar://7530813 - collapse multiple GEP instructions in IRgen
This avoids generating two gep's for common array operations.  Before
we would generate something like:

  %tmp = load i32* %X.addr                        ; <i32> [#uses=1]
  %arraydecay = getelementptr inbounds [100 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
  %arrayidx = getelementptr inbounds i32* %arraydecay, i32 %tmp ; <i32*> [#uses=1]
  %tmp1 = load i32* %arrayidx                     ; <i32> [#uses=1]

Now we generate:

  %tmp = load i32* %X.addr                        ; <i32> [#uses=1]
  %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i32 %tmp ; <i32*> [#uses=1]
  %tmp1 = load i32* %arrayidx                     ; <i32> [#uses=1]

Less IR is better at -O0.

llvm-svn: 106966
2010-06-26 23:03:20 +00:00
Chris Lattner 431bef4409 fix inc/dec to honor -fwrapv and -ftrapv, implementing PR7426.
llvm-svn: 106962
2010-06-26 22:18:28 +00:00
Chris Lattner 0bf27620f0 Fix unary minus to trap on overflow with -ftrapv, refactoring binop
code so we can use it from VisitUnaryMinus.

llvm-svn: 106957
2010-06-26 21:48:21 +00:00
Chris Lattner 51924e517b Implement support for -fwrapv, rdar://7221421
As part of this, pull together trapv handling into the same enum.

This also add support for NSW multiplies.

This also makes PCH disagreement on overflow behavior silent, since it
really doesn't matter except for warnings and codegen (no macros get 
defined etc).

llvm-svn: 106956
2010-06-26 21:25:03 +00:00
Chris Lattner 217e056e40 implement rdar://7432000 - signed negate should codegen as NSW.
While I'm in there, adjust pointer to member adjustments as well.

llvm-svn: 106955
2010-06-26 20:27:24 +00:00
Benjamin Kramer 9aa0d39443 A bug I've introduced in STDIN handling surfaced a few broken tests, fix them.
Lexer/hexfloat.cpp is now XFAIL'd, I'd appreciate if someone could look into it.

llvm-svn: 106840
2010-06-25 12:48:07 +00:00
Chris Lattner 3c77a355e0 implement support for -finstrument-functions, patch by Nelson
Elhage!

llvm-svn: 106507
2010-06-22 00:03:40 +00:00
Anton Korobeynikov cc50b7d7d5 More AltiVec support.
Patch by Anton Yartsev!

llvm-svn: 106387
2010-06-19 09:47:18 +00:00
Douglas Gregor 77e274fbc6 Merge the "regparm" attribute from a previous declaration of a
function to redeclarations of that function. Fixes PR7025.

llvm-svn: 106317
2010-06-18 21:30:25 +00:00
Rafael Espindola 23a8a06554 Change the test for which ABI/CC to use on ARM to be base on the environment
(the last argument of the triple).

llvm-svn: 106131
2010-06-16 19:01:17 +00:00
Rafael Espindola ad64acde72 A a new test for my previous patch.
llvm-svn: 106120
2010-06-16 18:02:31 +00:00
Rafael Espindola b35e7b8659 Fix tests that I missed from my previous commit.
llvm-svn: 106118
2010-06-16 17:49:52 +00:00
Benjamin Kramer c0b8f3bc53 Enable basic testing of __builtin_fpclassify.
llvm-svn: 105937
2010-06-14 10:41:45 +00:00
John McCall 875679eea0 Fix the constant evaluator for AltiVec-style vector literals so that the
vector is filled with the given constant;  we were just initializing the
first element.

llvm-svn: 105824
2010-06-11 17:54:15 +00:00
Rafael Espindola 2569885963 Add a test to the previous commit.
llvm-svn: 105596
2010-06-08 03:59:28 +00:00
Rafael Espindola e971b9a260 Correctly align large arrays in x86-64. This fixes PR5599.
llvm-svn: 105500
2010-06-04 23:15:27 +00:00
John McCall 8e346702b6 Preserve more information from a block's original function declarator, if one
was given.  Remove some unnecessary accounting from BlockScopeInfo.  Handle
typedef'ed function types until such time as we decide not.

llvm-svn: 105478
2010-06-04 19:02:56 +00:00
Fariborz Jahanian 6e81492151 Empty enum in c is now error to match gcc's behavior.
(radar 8040068).

llvm-svn: 105011
2010-05-28 22:23:22 +00:00
Fariborz Jahanian 93bef10131 Fix a miscompile of wchar pascal strings.
(radar 8020384)

llvm-svn: 104996
2010-05-28 19:40:48 +00:00
John McCall 02269a66b3 Enable the implementation of __builtin_setjmp and __builtin_longjmp. Not all
LLVM backends support these yet.

llvm-svn: 104867
2010-05-27 18:47:06 +00:00
Douglas Gregor aab11ede6e Fix testsuite for blocks mangling change
llvm-svn: 104618
2010-05-25 17:46:21 +00:00
Benjamin Kramer fdb61d78e9 Implement codegen for __builtin_isnormal.
llvm-svn: 104118
2010-05-19 11:24:26 +00:00
Douglas Gregor 162b419a02 Add missing test case, provided by Steven Watanabe.
llvm-svn: 104037
2010-05-18 17:43:51 +00:00
Douglas Gregor a941dcae16 Add support for Microsoft's __thiscall, from Steven Watanabe!
llvm-svn: 104026
2010-05-18 16:57:00 +00:00
Eli Friedman b41ad0fbea PR7117: Make sure we don't lose the calling convention for K&R-style
definitions.
 

llvm-svn: 103932
2010-05-17 02:50:18 +00:00
John McCall b1fb0d3610 The FP constant evaluator was missing a few cases of unary operators that return floats
but whose operand isn't a float:  specifically, __real__ and __imag__.  Instead
of filtering these out, just implement them.

Fixes <rdar://problem/7958272>.

llvm-svn: 103307
2010-05-07 22:08:54 +00:00
Chris Lattner dbff4bf5f4 implement codegen support for __builtin_isfinite, part of PR6083
llvm-svn: 103168
2010-05-06 06:04:13 +00:00
Chris Lattner 68784efaf6 optimize builtin_isnan/isinf to not do an extraneous extension from
float -> double (which happens because they are modelled as int(...)
functions), and add a testcase for isinf.

llvm-svn: 103167
2010-05-06 05:50:07 +00:00
John McCall 4a39ab8078 Emit the globals, metadata, etc. associated with static variables even when
they're unreachable.  This matters because (if they're POD, or if this is C)
the scope containing the variable might be reachable even if the variable
isn't.  Fixes PR7044.

llvm-svn: 103052
2010-05-04 20:45:42 +00:00
Devang Patel dfcd0661a1 Use clang::VarDecl name instead of llvm::GlobalVariable name.
llvm::GLobalVariable name may not match user visibile name for function static variables.

llvm-svn: 102644
2010-04-29 17:48:37 +00:00
Mon P Wang 75c645c6d7 A not equal for an unordered relation should return true as specified in IEEE-754, e.g.,
NAN != NAN ? 1 : 0 should return 1.  Also fix the case for complex.

llvm-svn: 102598
2010-04-29 05:53:29 +00:00
John McCall d06fb865eb Properly pass the address of a lazily-generated function declaration with
incomplete type.  Fixes PR6911.

llvm-svn: 102473
2010-04-28 00:00:30 +00:00
Chris Lattner db6d5cb892 Implement PR6845. We allow matching constraints to have different
input and output types when the smaller value isn't mentioned in the
asm string.  Extend this support from integers to also allowing 
fp values to be mismatched (if not mentioned in the asm string).

llvm-svn: 102188
2010-04-23 17:27:29 +00:00
Chris Lattner 6bcf2d81e8 rename test
llvm-svn: 102182
2010-04-23 16:30:17 +00:00
Chris Lattner 1a8f394a1f david conrad points out that {|} in inline assembly on arm are not asm
variants.  This fixes neon inline asm which my patch for PR6780 broke.

llvm-svn: 102181
2010-04-23 16:29:58 +00:00
Daniel Dunbar f812506912 ARM/APCS: Don't respect bit-field types when laying out structures.
- This fixes the last known ABI issues with ARM/APCS.

 - I've run the first 1k ABITests with '--no-unsigned --no-vector --no-complex'
   on {armv6, armv7} x {-mno-thumb, -mthumb}, and the first 10k tests for armv7
   -mthumb, for both function return types and single argument calls. These all
   pass now (they failed horribly before without --no-bitfield).

llvm-svn: 102070
2010-04-22 16:14:54 +00:00
Daniel Dunbar 5981377698 IRgen: Fix another case where we generated an invalid access component when we
immediately narrowed the access size. Fix this (and previous case) by just
choosing a better access size up-front.

llvm-svn: 102068
2010-04-22 15:22:33 +00:00
Daniel Dunbar 5d6c07e0e9 IRgen: Fix case where we might generate an access component with width == 0, if
we have to narrow the access side immediately (can happen with packed,
-fno-bitfield-type-align).

llvm-svn: 102067
2010-04-22 14:56:10 +00:00
Daniel Dunbar fc66e0ed87 IRgen: Set alignment correctly on bit-field accesses.
llvm-svn: 102046
2010-04-22 03:17:04 +00:00
Daniel Dunbar 488f55c271 IRgen: Rewrite bit-field access policy to not access data beyond the bounds of the structure, which we also now verify as part of the post-layout consistency checks.
- This fixes some pedantic bugs with packed structures, as well as major problems with -fno-bitfield-type-align.

 - Fixes PR5591, PR5567, and all known -fno-bitfield-type-align issues.

 - Review appreciated.

llvm-svn: 102045
2010-04-22 02:35:46 +00:00
Daniel Dunbar 53fac692fa ABI/x86-32 & x86-64: Alignment on 'byval' must be set when when the alignment
exceeds the minimum ABI alignment.

llvm-svn: 102019
2010-04-21 19:49:55 +00:00