Commit Graph

9780 Commits

Author SHA1 Message Date
Evan Cheng ef0b7cc2d5 On x86, if the only use of a i64 load is a i64 store, generate a pair of double load and store instead.
llvm-svn: 66776
2009-03-12 05:59:15 +00:00
Sanjiv Gupta 8bb50e2344 Forgot to check-in this as part of 7761.
llvm-svn: 66763
2009-03-12 03:20:07 +00:00
Sanjiv Gupta f883419b2f Banksel optimization is now based on the section names of symbols, since the symbols in one section will always be put into one bank.
llvm-svn: 66761
2009-03-12 02:10:45 +00:00
Dan Gohman 5637df37cd Revert r66024. The JIT encoding for CALLpcrel32 is wrong -- see PR3773, and the
assembly text output uses an indirect call ("call *") instead of a direct call.

llvm-svn: 66735
2009-03-11 23:01:47 +00:00
Rafael Espindola 294943c99b optimize i8 and i16 tls values.
llvm-svn: 66725
2009-03-11 22:40:04 +00:00
Bill Wendling 42adc73a2b Add a -no-implicit-float flag. This acts like -soft-float, but may generate
floating point instructions that are explicitly specified by the user.

llvm-svn: 66719
2009-03-11 22:30:01 +00:00
Duncan Sands 4581bebf2a It makes no sense to have a ODR version of common
linkage, so remove it.

llvm-svn: 66690
2009-03-11 20:14:15 +00:00
Mon P Wang 25c6a46a81 For yonah, fix a vector shuffle case for v16i8 where we didn't properly clear some bits.
llvm-svn: 66684
2009-03-11 18:47:57 +00:00
Chris Lattner 93e87652f2 fix PR3785, a valgrind error on test/CodeGen/ARM/pr3502.ll
llvm-svn: 66660
2009-03-11 16:14:25 +00:00
Duncan Sands e2881053c9 Remove the one-definition-rule version of extern_weak
linkage: this linkage type only applies to declarations,
but ODR is only relevant to globals with definitions.

llvm-svn: 66650
2009-03-11 08:08:06 +00:00
Mon P Wang ce6a26cb1a Fixed a v8i16 shuffle case that should generate a pshufb instead of a pshuflw/hw.
llvm-svn: 66645
2009-03-11 06:35:11 +00:00
Chris Lattner 248ad00afd formatting change, reduce indentation. No functionality change.
llvm-svn: 66642
2009-03-11 05:48:52 +00:00
Sanjiv Gupta afb355f281 Mark the Defs and Uses of STATUS register correctly, plus some reformatting.
llvm-svn: 66540
2009-03-10 10:35:34 +00:00
Dan Gohman b0d4009ec8 Add more information to the EFLAGS note.
llvm-svn: 66515
2009-03-10 00:26:23 +00:00
Dan Gohman d5b35ee215 Add a note about EFLAGS optimization.
llvm-svn: 66508
2009-03-09 23:47:02 +00:00
Evan Cheng 0ee0da841d ARM target now also recognize triplets like thumbv6-apple-darwin and set thumb mode and arch subversion. Eventually thumb triplets will go way and replaced with function notes.
llvm-svn: 66435
2009-03-09 20:25:39 +00:00
Evan Cheng ce5dfb692a ARM isLegalAddressImmediate should check if type is a simple type now that optimizer can create values of funky scalar types.
llvm-svn: 66429
2009-03-09 19:15:00 +00:00
Chris Lattner d5ac9d87b4 do not export all the X86FastISel symbols, ever.
llvm-svn: 66382
2009-03-08 18:44:31 +00:00
Evan Cheng ec415efb44 Recognize triplets starting with armv5-, armv6- etc. And set the ARM arch version accordingly.
llvm-svn: 66365
2009-03-08 04:02:49 +00:00
Chris Lattner 393ac62837 add a note.
llvm-svn: 66360
2009-03-08 03:04:26 +00:00
Chris Lattner cfd1f7aa9f add a note.
llvm-svn: 66359
2009-03-08 01:54:43 +00:00
Duncan Sands 12da8ce3d2 Introduce new linkage types linkonce_odr, weak_odr, common_odr
and extern_weak_odr.  These are the same as the non-odr versions,
except that they indicate that the global will only be overridden
by an *equivalent* global.  In C, a function with weak linkage can
be overridden by a function which behaves completely differently.
This means that IP passes have to skip weak functions, since any
deductions made from the function definition might be wrong, since
the definition could be replaced by something completely different
at link time.   This is not allowed in C++, thanks to the ODR
(One-Definition-Rule): if a function is replaced by another at
link-time, then the new function must be the same as the original
function.  If a language knows that a function or other global can
only be overridden by an equivalent global, it can give it the
weak_odr linkage type, and the optimizers will understand that it
is alright to make deductions based on the function body.  The
code generators on the other hand map weak and weak_odr linkage
to the same thing.

llvm-svn: 66339
2009-03-07 15:45:40 +00:00
Dan Gohman ff659b5b86 Arithmetic instructions don't set EFLAGS bits OF and CF bits
the same say the "test" instruction does in overflow cases,
so eliminating the test is only safe when those bits aren't
needed, as is the case for COND_E and COND_NE, or if it
can be proven that no overflow will occur. For now, just
restrict the optimization to COND_E and COND_NE and don't
do any overflow analysis.

llvm-svn: 66318
2009-03-07 01:58:32 +00:00
Dan Gohman c719d73eec Don't use plain INC32 and DEC32 on x86-64; it needs
INC64_32r and INC64_16r, because these instructions are encoded
differently on x86-64. This fixes JIT regressions on x86-64 in
kimwitu++ and others.

llvm-svn: 66207
2009-03-05 21:32:23 +00:00
Dan Gohman e014b193c9 When creating X86ISD::INC and X86ISD::DEC nodes, only add one operand.
The extra operand didn't appear to cause any trouble, but it was
erroneous regardless.

llvm-svn: 66206
2009-03-05 21:29:28 +00:00
Dan Gohman 2c2f192c74 Fix the "test" optimization to recognize "dec" as an add of
negative one, as subtracts of immediates are canonicalized
to adds.

llvm-svn: 66180
2009-03-05 19:32:48 +00:00
Dan Gohman 55d7b2ac4f Re-apply 66008, now that the unfoldMemoryOperand bug is fixed.
llvm-svn: 66058
2009-03-04 19:44:21 +00:00
Dan Gohman f8920d0c75 Correct this comment.
llvm-svn: 66057
2009-03-04 19:24:25 +00:00
Dan Gohman cc329b567d When using MachineInstr operand indices on SDNodes, the number
of MachineInstr def operands must be subtracted out. This bug
was uncovered by the recent x86 EFLAGS optimization. Before
that, the only instructions that ever needed unfolding were
things like CMP32rm, where NumDefs is zero.

llvm-svn: 66056
2009-03-04 19:23:38 +00:00
Evan Cheng 9edd616b59 Fix PR3666: isel calls to constant addresses.
llvm-svn: 66024
2009-03-04 06:48:53 +00:00
Dan Gohman 6728f892be Revert r66004 for now; it's causing a variety of test failures.
llvm-svn: 66008
2009-03-04 03:54:19 +00:00
Dan Gohman fe8d71f42a Teach the x86 backend to eliminate "test" instructions by using the EFLAGS
result from add, sub, inc, and dec instructions in simple cases.

llvm-svn: 66004
2009-03-04 02:33:24 +00:00
Evan Cheng b8905c4e2c Fix PR3701. 1. X86 target renamed eflags register to flags. This matches what llvm-gcc generates so codegen knows flags register is being clobbered by inline asm. 2. BURR scheduler should also check if inline asm nodes can clobber "live" physical registers. Previously it was only checking target nodes with implicit defs.
llvm-svn: 65996
2009-03-04 01:41:49 +00:00
Dan Gohman 3a72265d41 Add '(implicit EFLAGS)' for AND, OR, XOR, NEG, INC, and DEC
instructions. These aren't used yet.

llvm-svn: 65965
2009-03-03 19:53:46 +00:00
Bob Wilson 530e038940 Use early exit to reduce indentation. No functional change.
llvm-svn: 65962
2009-03-03 19:26:27 +00:00
Dan Gohman 92b551bc2b Fix a bunch of Doxygen syntax issues. Escape special characters,
and put @file directives on their own comment line.

llvm-svn: 65920
2009-03-03 02:55:14 +00:00
Bob Wilson 85cefe8567 Generalize BuildVectorSDNode::isConstantSplat to use APInts and handle
arbitrary vector sizes.  Add an optional MinSplatBits parameter to specify
a minimum for the splat element size.  Update the PPC target to use the
revised interface.

llvm-svn: 65899
2009-03-02 23:24:16 +00:00
Bob Wilson d8ea0e144e Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a new
method in a BuildVectorSDNode "pseudo-class".

llvm-svn: 65747
2009-03-01 01:13:55 +00:00
Mon P Wang d844dc305e Added another darwin subtarget
llvm-svn: 65662
2009-02-28 00:25:30 +00:00
Rafael Espindola 000421eade Refactor TLS code and add some tests. The tests and expected results are:
pic |  declaration | linkage  | visibility |

!pic |  declaration | external | default    | tls1.ll     tls2.ll     | local exec
 pic |  declaration | external | default    | tls1-pic.ll tls2-pic.ll | general dynamic
!pic | !declaration | external | default    | tls3.ll     tls4.ll     | initial exec
 pic | !declaration | external | default    | tls3-pic.ll tls4-pic.ll | general dynamic

!pic |  declaration | external | hidden     | tls7.ll     tls8.ll     | local exec
 pic |  declaration | external | hidden     | X                       | local dynamic
!pic | !declaration | external | hidden     | tls9.ll     tls10.ll    | local exec
 pic | !declaration | external | hidden     | X                       | local dynamic

!pic |  declaration | internal | default    | tls5.ll     tls6.ll     | local exec
 pic |  declaration | internal | default    | X                       | local dynamic

The ones marked with an X have not been implemented since local dynamic is not implemented.

llvm-svn: 65632
2009-02-27 13:37:18 +00:00
Dale Johannesen 4609dbe222 Alignment values for i64 and f64 on ppc64 were wrong,
possibly for the reason suggested by the comment.
No wonder it didn't work very well.  This unblocks
bootstrap with assertions on ppc.

llvm-svn: 65601
2009-02-27 00:56:35 +00:00
Evan Cheng 40abb7b5d0 ADDS{D|S}rr_Int and MULS{D|S}rr_Int are not commutable. The users of these intrinsics expect the high bits will not be modified.
llvm-svn: 65499
2009-02-26 03:12:02 +00:00
Evan Cheng a49de9de2e Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.
llvm-svn: 65482
2009-02-25 22:49:59 +00:00
Nick Lewycky 5c10a3aa7f Add a totally synthetic situation I came up with while looking at a bug in
related code.

llvm-svn: 65437
2009-02-25 06:52:48 +00:00
Scott Michel bb878288cb Remove all "cached" data from BuildVectorSDNode, preferring to retrieve
results via reference parameters.

This patch also appears to fix Evan's reported problem supplied as a
reduced bugpoint test case.

llvm-svn: 65426
2009-02-25 03:12:50 +00:00
Bill Wendling c5437ea429 Overhaul my earlier submission due to feedback. It's a large patch, but most of
them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.

llvm-svn: 65379
2009-02-24 08:30:20 +00:00
Dan Gohman 318d7376ba Fast-isel can't do TLS yet, so it should fall back to SDISel
if it sees TLS addresses.

llvm-svn: 65341
2009-02-23 22:03:08 +00:00
Evan Cheng 9f8fddeed8 Only v1i16 (i.e. _m64) is returned via RAX / RDX.
llvm-svn: 65313
2009-02-23 09:03:22 +00:00
Nate Begeman e684da3e5d Generate better code for v8i16 shuffles on SSE2
Generate better code for v16i8 shuffles on SSE2 (avoids stack)
Generate pshufb for v8i16 and v16i8 shuffles on SSSE3 where it is fewer uops.
Document the shuffle matching logic and add some FIXMEs for later further
  cleanups.
New tests that test the above.

Examples:

New:
_shuf2:
	pextrw	$7, %xmm0, %eax
	punpcklqdq	%xmm1, %xmm0
	pshuflw	$128, %xmm0, %xmm0
	pinsrw	$2, %eax, %xmm0

Old:
_shuf2:
	pextrw	$2, %xmm0, %eax
	pextrw	$7, %xmm0, %ecx
	pinsrw	$2, %ecx, %xmm0
	pinsrw	$3, %eax, %xmm0
	movd	%xmm1, %eax
	pinsrw	$4, %eax, %xmm0
	ret

=========

New:
_shuf4:
	punpcklqdq	%xmm1, %xmm0
	pshufb	LCPI1_0, %xmm0

Old:
_shuf4:
	pextrw	$3, %xmm0, %eax
	movsd	%xmm1, %xmm0
	pextrw	$3, %xmm1, %ecx
	pinsrw	$4, %ecx, %xmm0
	pinsrw	$5, %eax, %xmm0

========

New:
_shuf1:
	pushl	%ebx
	pushl	%edi
	pushl	%esi
	pextrw	$1, %xmm0, %eax
	rolw	$8, %ax
	movd	%xmm0, %ecx
	rolw	$8, %cx
	pextrw	$5, %xmm0, %edx
	pextrw	$4, %xmm0, %esi
	pextrw	$3, %xmm0, %edi
	pextrw	$2, %xmm0, %ebx
	movaps	%xmm0, %xmm1
	pinsrw	$0, %ecx, %xmm1
	pinsrw	$1, %eax, %xmm1
	rolw	$8, %bx
	pinsrw	$2, %ebx, %xmm1
	rolw	$8, %di
	pinsrw	$3, %edi, %xmm1
	rolw	$8, %si
	pinsrw	$4, %esi, %xmm1
	rolw	$8, %dx
	pinsrw	$5, %edx, %xmm1
	pextrw	$7, %xmm0, %eax
	rolw	$8, %ax
	movaps	%xmm1, %xmm0
	pinsrw	$7, %eax, %xmm0
	popl	%esi
	popl	%edi
	popl	%ebx
	ret

Old:
_shuf1:
	subl	$252, %esp
	movaps	%xmm0, (%esp)
	movaps	%xmm0, 16(%esp)
	movaps	%xmm0, 32(%esp)
	movaps	%xmm0, 48(%esp)
	movaps	%xmm0, 64(%esp)
	movaps	%xmm0, 80(%esp)
	movaps	%xmm0, 96(%esp)
	movaps	%xmm0, 224(%esp)
	movaps	%xmm0, 208(%esp)
	movaps	%xmm0, 192(%esp)
	movaps	%xmm0, 176(%esp)
	movaps	%xmm0, 160(%esp)
	movaps	%xmm0, 144(%esp)
	movaps	%xmm0, 128(%esp)
	movaps	%xmm0, 112(%esp)
	movzbl	14(%esp), %eax
	movd	%eax, %xmm1
	movzbl	22(%esp), %eax
	movd	%eax, %xmm2
	punpcklbw	%xmm1, %xmm2
	movzbl	42(%esp), %eax
	movd	%eax, %xmm1
	movzbl	50(%esp), %eax
	movd	%eax, %xmm3
	punpcklbw	%xmm1, %xmm3
	punpcklbw	%xmm2, %xmm3
	movzbl	77(%esp), %eax
	movd	%eax, %xmm1
	movzbl	84(%esp), %eax
	movd	%eax, %xmm2
	punpcklbw	%xmm1, %xmm2
	movzbl	104(%esp), %eax
	movd	%eax, %xmm1
	punpcklbw	%xmm1, %xmm0
	punpcklbw	%xmm2, %xmm0
	movaps	%xmm0, %xmm1
	punpcklbw	%xmm3, %xmm1
	movzbl	127(%esp), %eax
	movd	%eax, %xmm0
	movzbl	135(%esp), %eax
	movd	%eax, %xmm2
	punpcklbw	%xmm0, %xmm2
	movzbl	155(%esp), %eax
	movd	%eax, %xmm0
	movzbl	163(%esp), %eax
	movd	%eax, %xmm3
	punpcklbw	%xmm0, %xmm3
	punpcklbw	%xmm2, %xmm3
	movzbl	188(%esp), %eax
	movd	%eax, %xmm0
	movzbl	197(%esp), %eax
	movd	%eax, %xmm2
	punpcklbw	%xmm0, %xmm2
	movzbl	217(%esp), %eax
	movd	%eax, %xmm4
	movzbl	225(%esp), %eax
	movd	%eax, %xmm0
	punpcklbw	%xmm4, %xmm0
	punpcklbw	%xmm2, %xmm0
	punpcklbw	%xmm3, %xmm0
	punpcklbw	%xmm1, %xmm0
	addl	$252, %esp
	ret

llvm-svn: 65311
2009-02-23 08:49:38 +00:00
Bill Wendling 9ee052bcdc Propagate debug loc info through prologue/epilogue.
llvm-svn: 65298
2009-02-23 00:42:30 +00:00
Scott Michel 9d31aca679 Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTOR
instruction. The class also consolidates the code for detecting constant
splats that's shared across PowerPC and the CellSPU backends (and might be
useful for other backends.) Also introduces SelectionDAG::getBUID_VECTOR() for
generating new BUILD_VECTOR nodes.

llvm-svn: 65296
2009-02-22 23:36:09 +00:00
Evan Cheng 2448aa1d8d Add a note.
llvm-svn: 65275
2009-02-22 08:13:45 +00:00
Evan Cheng e4ffc030e2 Be bug compatible with gcc by returning MMX values in RAX.
llvm-svn: 65274
2009-02-22 08:05:12 +00:00
Evan Cheng 91193c0094 Do not consider MMX_MOVD64rr a move instructions. The source register is in GR32, the destination is VR64. They are not compatible.
llvm-svn: 65273
2009-02-22 08:04:23 +00:00
Anton Korobeynikov 42aae86590 Drop bunch of half-working stuff in the ext_weak linkage support.
Now we're using one gross, but quite robust hack :) (previous ones
did not work, for example, when ext_weak symbol was used deep inside
constant expression in the initializer).

The proper fix of this problem will require some quite huge asmprinter
changes and that's why was postponed. This fixes PR3629 by the way :)

llvm-svn: 65230
2009-02-21 11:53:32 +00:00
Bill Wendling 82aa14fae8 Make sure this doesn't access .end() too.
llvm-svn: 65213
2009-02-21 01:11:36 +00:00
Bill Wendling 81ebf9a578 Make sure we don't dereference the .end() of the container.
llvm-svn: 65211
2009-02-21 01:07:26 +00:00
Bill Wendling 56759ee658 Propagate more debug loc infos. This also includes some code cleaning.
llvm-svn: 65207
2009-02-21 00:43:56 +00:00
Bill Wendling 5191934371 We need to propagate the debug location information even when dealing with the
prologue/epilogue.

llvm-svn: 65206
2009-02-21 00:32:08 +00:00
Evan Cheng 2a9bad5ac1 Support return of MMX values in 64-bit mode.
llvm-svn: 65152
2009-02-20 20:43:02 +00:00
Torok Edwin 87d5ca083b add note about sin
llvm-svn: 65137
2009-02-20 18:42:06 +00:00
Bill Wendling 0f4c581c4a Put code that generates debug labels into TableGen so that it can be used by
everyone.

llvm-svn: 64978
2009-02-18 23:12:06 +00:00
Dan Gohman 8cab4c44bb Add explicit keywords.
llvm-svn: 64915
2009-02-18 16:37:45 +00:00
Nate Begeman 18d85e7403 Add support to the JIT for true non-lazy operation. When a call to a function
that has not been JIT'd yet, the callee is put on a list of pending functions
to JIT.  The call is directed through a stub, which is updated with the address
of the function after it has been JIT'd.  A new interface for allocating and
updating empty stubs is provided.

Add support for removing the ModuleProvider the JIT was created with, which
would otherwise invalidate the JIT's PassManager, which is initialized with the
ModuleProvider's Module.

Add support under a new ExecutionEngine flag for emitting the infomration 
necessary to update Function and GlobalVariable stubs after JITing them, by
recording the address of the stub and the name of the GlobalValue.  This allows
code to be copied from one address space to another, where libraries may live
at different virtual addresses, and have the stubs updated with their new
correct target addresses.

llvm-svn: 64906
2009-02-18 08:31:02 +00:00
Dan Gohman 2af1f85f1f Factor out the code to add a MachineOperand to a MachineInstrBuilder.
llvm-svn: 64891
2009-02-18 05:45:50 +00:00
Evan Cheng a40d5e14ab GV with null value initializer shouldn't go to BSS if it's meant for a mergeable strings section. Currently it only checks for Darwin. Someone else please check if it should apply to other targets as well.
llvm-svn: 64877
2009-02-18 02:19:52 +00:00
Scott Michel cf0da6c597 Remove trailing whitespace to reduce later commit patch noise.
(Note: Eventually, commits like this will be handled via a pre-commit hook that
 does this automagically, as well as expand tabs to spaces and look for 80-col
 violations.)

llvm-svn: 64827
2009-02-17 22:15:04 +00:00
Chris Lattner cba4b6f83d add a horrible note
llvm-svn: 64719
2009-02-17 01:16:14 +00:00
Bill Wendling 3c50922ea0 --- Merging (from foreign repository) r64714 into '.':
U    include/llvm/CodeGen/DebugLoc.h
U    lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp

Enable debug location generation at -Os. This goes with the reapplication of the
r63639 patch.

llvm-svn: 64715
2009-02-17 01:04:54 +00:00
Dan Gohman 2a4553ba5f Delete trailing whitespace.
llvm-svn: 64694
2009-02-16 23:14:14 +00:00
Dan Gohman f6ccacba36 MachineLICM now handles these cases.
llvm-svn: 64620
2009-02-15 23:24:52 +00:00
Dan Gohman 29705333e5 The x86-64 red zone is now being used.
llvm-svn: 64535
2009-02-14 03:30:05 +00:00
Evan Cheng c2fde91703 Teach x86 target -soft-float.
llvm-svn: 64496
2009-02-13 22:36:38 +00:00
Dale Johannesen 3a8bd17fdb Remove non-DebugLoc versions of BuildMI from IA64, Mips.
llvm-svn: 64438
2009-02-13 02:34:39 +00:00
Dale Johannesen 9bba902c83 Remove non-DebugLoc versions of BuildMI from X86.
There were some that might even matter in X86FastISel.

llvm-svn: 64437
2009-02-13 02:33:27 +00:00
Dale Johannesen 57097d2a26 missed file
llvm-svn: 64436
2009-02-13 02:32:04 +00:00
Dale Johannesen 215a925766 Remove non-DebugLoc versions of buildMI from Sparc.
llvm-svn: 64435
2009-02-13 02:31:35 +00:00
Dale Johannesen 635f2a69d9 Remove non-DebugLoc versions of BuildMI from Alpha and Cell.
llvm-svn: 64433
2009-02-13 02:30:42 +00:00
Dale Johannesen 460bfeba8c Remove refs to non-DebugLoc version of BuildMI from XCore, PIC16.
llvm-svn: 64432
2009-02-13 02:29:03 +00:00
Dale Johannesen e9f623e27c Remove refs to non-DebugLoc version of BuildMI from PowerPC.
llvm-svn: 64431
2009-02-13 02:27:39 +00:00
Dale Johannesen b851a7853a and one more file
llvm-svn: 64430
2009-02-13 02:26:21 +00:00
Dale Johannesen 7647da67ea Remove refs to non-DebugLoc versions of BuildMI from ARM.
llvm-svn: 64429
2009-02-13 02:25:56 +00:00
Bill Wendling 65c0fd4c44 Revert this. It was breaking stuff.
llvm-svn: 64428
2009-02-13 02:16:35 +00:00
Bill Wendling 1c21ac3066 Turn off the old way of handling debug information in the code generator. Use
the new way, where all of the information is passed on SDNodes and machine
instructions.

llvm-svn: 64427
2009-02-13 02:01:04 +00:00
Dale Johannesen baca6ed65e Check in missing file.
llvm-svn: 64410
2009-02-12 23:24:44 +00:00
Dale Johannesen 6b8c76a910 Eliminate a couple of non-DebugLoc BuildMI variants.
Modify callers.

llvm-svn: 64409
2009-02-12 23:08:38 +00:00
Dale Johannesen 655775293f Arrange to print constants that match "n" and "i" constraints
in inline asm as signed (what gcc does).  Add partial support
for x86-specific "e" and "Z" constraints, with appropriate
signedness for printing.

llvm-svn: 64400
2009-02-12 20:58:09 +00:00
Chris Lattner 844deb73f4 fix PR3538 for ARM.
llvm-svn: 64384
2009-02-12 17:38:23 +00:00
Chris Lattner 4d4c702d5f fix PR3538 for PPC
llvm-svn: 64383
2009-02-12 17:37:15 +00:00
Chris Lattner aed3a4215b fix the X86 backend to just drop llvm.declare nodes for VLAs instead of
leaving them in the DAG and then getting selection errors.  This is a 
fix for PR3538.

llvm-svn: 64382
2009-02-12 17:33:11 +00:00
Bill Wendling f6d609a227 Move debug loc info along when the spiller creates new instructions.
llvm-svn: 64342
2009-02-12 00:02:55 +00:00
Bill Wendling 27b508db9b Propagate DebugLoc info for spiller call-backs.
llvm-svn: 64329
2009-02-11 21:51:19 +00:00
Dan Gohman 27f85854f9 Don't try to set an EFLAGS operand to dead if no instruction was created.
This fixes a bug introduced by r61215.

llvm-svn: 64316
2009-02-11 19:50:24 +00:00
Evan Cheng 589a539423 Handle llvm.x86.sse2.maskmov.dqu in 64-bit.
llvm-svn: 64240
2009-02-10 22:06:28 +00:00
Evan Cheng df15f13c34 80 col violations.
llvm-svn: 64237
2009-02-10 21:39:44 +00:00
Sanjiv Gupta c3f7b82628 Function temporaries can not overlap with retval or args.See the comment in source code to know the reason. Anything having .auto. in its name is local to a function in nature irrespective of the linkage specified. print static local variables in module level IDATA section.
llvm-svn: 64199
2009-02-10 04:20:26 +00:00
Evan Cheng e5ade4a9a1 Implement FpSET_ST1_*.
llvm-svn: 64186
2009-02-09 23:32:07 +00:00
Dan Gohman a950e99dee Use doxygen comment syntax.
llvm-svn: 64150
2009-02-09 18:12:09 +00:00
Evan Cheng 64dfcacd5f Turns out AnalyzeBranch can modify the mbb being analyzed. This is a nasty
suprise to some callers, e.g. register coalescer. For now, add an parameter
that tells AnalyzeBranch whether it's safe to modify the mbb. A better
solution is out there, but I don't have time to deal with it right now.

llvm-svn: 64124
2009-02-09 07:14:22 +00:00
Chris Lattner 1aca40e349 add a note.
llvm-svn: 64093
2009-02-08 20:44:19 +00:00
Dale Johannesen 9c310711bb Use getDebugLoc forwarder instead of getNode()->getDebugLoc.
No functional change.

llvm-svn: 64026
2009-02-07 19:59:05 +00:00
Dan Gohman 747e55bc9a Constify TargetInstrInfo::EmitInstrWithCustomInserter, allowing
ScheduleDAG's TLI member to use const.

llvm-svn: 64018
2009-02-07 16:15:20 +00:00
Dale Johannesen 4ea526268c Needs this file too.
llvm-svn: 63993
2009-02-07 00:56:46 +00:00
Dale Johannesen 62fd95d6ec Get rid of the last non-DebugLoc versions of getNode!
Many targets build placeholder nodes for special operands, e.g.
GlobalBaseReg on X86 and PPC for the PIC base.  There's no
sensible way to associate debug info with these.  I've left
them built with getNode calls with explicit DebugLoc::getUnknownLoc operands. 
I'm not too happy about this but don't see a good improvement;
I considered adding a getPseudoOperand or something, but it
seems to me that'll just make it harder to read.

llvm-svn: 63992
2009-02-07 00:55:49 +00:00
Dan Gohman 4e3e3deed3 Refactor some repeated logic into a separate function.
llvm-svn: 63989
2009-02-07 00:43:41 +00:00
Dan Gohman 78fe44ed52 Make a comment a doxygen comment.
llvm-svn: 63988
2009-02-07 00:42:54 +00:00
Dale Johannesen 84935759d5 Remove more non-DebugLoc getNode variants. Use
getCALLSEQ_{END,START} to permit passing no DebugLoc
there.  UNDEF doesn't logically have DebugLoc; add
getUNDEF to encapsulate this.

llvm-svn: 63978
2009-02-06 23:05:02 +00:00
Dale Johannesen 400dc2e2e4 Remove more non-DebugLoc versions of getNode.
llvm-svn: 63969
2009-02-06 21:50:26 +00:00
Bill Wendling b6b0aa2449 Record debug location information in the Dwarf writer.
A simple test program shows that debugging works. :-)

llvm-svn: 63968
2009-02-06 21:45:08 +00:00
Dan Gohman af8f994681 Use .size and .type on ELF systems; this helps tools that map
addresses to symbols.

llvm-svn: 63962
2009-02-06 21:15:52 +00:00
Dale Johannesen ab8e4425a3 Eliminate remaining non-DebugLoc version of getTargetNode.
llvm-svn: 63951
2009-02-06 19:16:40 +00:00
Sanjiv Gupta 48d6bb9924 Print globl directive for variables with external linkage (global variables).
llvm-svn: 63943
2009-02-06 18:24:59 +00:00
Evan Cheng 066757eea1 Move getPointerRegClass from TargetInstrInfo to TargetRegisterInfo.
llvm-svn: 63938
2009-02-06 17:43:24 +00:00
Evan Cheng b5f0ec3eb7 Add TargetInstrInfo::isSafeToMoveRegisterClassDefs. It returns true if it's safe to move an instruction which defines a value in the register class. Replace pre-splitting specific IgnoreRegisterClassBarriers with this new hook.
llvm-svn: 63936
2009-02-06 17:17:30 +00:00
Dale Johannesen 2c4cf2752d get rid of some non-DebugLoc getTargetNode variants.
llvm-svn: 63909
2009-02-06 02:08:06 +00:00
Dale Johannesen 9f3f72f144 Get rid of one more non-DebugLoc getNode and
its corresponding getTargetNode.  Lots of
caller changes.

llvm-svn: 63904
2009-02-06 01:31:28 +00:00
Dale Johannesen f80493bbfd Remove a non-DebugLoc version of getNode.
llvm-svn: 63889
2009-02-05 22:07:54 +00:00
Evan Cheng 64fdacc27f A few more isAsCheapAsAMove.
llvm-svn: 63852
2009-02-05 08:42:55 +00:00
Dale Johannesen b842d529a3 Reapply 63765. Patches for clang and llvm-gcc to follow.
llvm-svn: 63812
2009-02-05 01:49:45 +00:00
Dale Johannesen 12c572b6fa Get rid of 3 non-DebugLoc getNode variants.
llvm-svn: 63808
2009-02-05 01:01:16 +00:00
Dale Johannesen 7ae8c8b108 Remove non-DebugLoc versions of getMergeValues, ZeroExtendInReg.
llvm-svn: 63800
2009-02-05 00:20:09 +00:00
Dale Johannesen f08a47bb70 Remove non-DebugLoc forms of CopyToReg and CopyFromReg.
Adjust callers.

llvm-svn: 63789
2009-02-04 23:02:30 +00:00
Dale Johannesen ae616c2c61 Reverting 63765. This broke the build of both clang
and llvm-gcc.

llvm-svn: 63786
2009-02-04 22:47:25 +00:00
Dale Johannesen 021052a705 Remove non-DebugLoc versions of getLoad and getStore.
Adjust the many callers of those versions.

llvm-svn: 63767
2009-02-04 20:06:27 +00:00
Nate Begeman 6ae3aa83d0 New feature: add support for target intrinsics being defined in the
target directories themselves.  This also means that VMCore no longer
needs to know about every target's list of intrinsics.  Future work
will include converting the PowerPC target to this interface as an
example implementation.

llvm-svn: 63765
2009-02-04 19:47:21 +00:00
Chris Lattner e84a7911c4 Bill implemented this.
llvm-svn: 63752
2009-02-04 19:09:07 +00:00
Chris Lattner 553fd7e1eb add a note, this is why we're faster at SciMark-MonteCarlo with
SSE disabled.

llvm-svn: 63751
2009-02-04 19:08:01 +00:00
Dan Gohman 556d14d483 Minor code cleanups; no functionality change.
llvm-svn: 63740
2009-02-04 17:28:58 +00:00
Dale Johannesen 679073b420 Remove non-DebugLoc forms of the exotic forms
of Lod and Sto; patch uses.

llvm-svn: 63716
2009-02-04 02:34:38 +00:00
Dale Johannesen f2bb6f09a3 Remove some more non-DebugLoc versions of construction
functions, with callers adjusted to fit.

llvm-svn: 63705
2009-02-04 01:48:28 +00:00
Dale Johannesen 85263882aa Remove a few non-DebugLoc versions of node creation
functions.

llvm-svn: 63703
2009-02-04 01:17:06 +00:00
Mon P Wang 4379a795fe Fixes a case where we generate an incorrect mask for pshfhw in the presence
of undefs and incorrectly determining if we have punpckldq.

llvm-svn: 63702
2009-02-04 01:16:59 +00:00
Dale Johannesen bbf13f54e0 Patch up omissions in DebugLoc propagation.
llvm-svn: 63693
2009-02-04 00:33:20 +00:00
Dale Johannesen 0404dc11af Need this file too.
llvm-svn: 63674
2009-02-03 22:26:34 +00:00
Dale Johannesen abf66b8343 Add some DL propagation to places that didn't
have it yet.  More coming.

llvm-svn: 63673
2009-02-03 22:26:09 +00:00
Dale Johannesen 14f2d9dcbd DebugLoc propgation
llvm-svn: 63664
2009-02-03 21:48:12 +00:00
Dale Johannesen 1eb1ef2cfd DebugLoc propagation. done with file.
llvm-svn: 63656
2009-02-03 20:21:25 +00:00
Dale Johannesen 66e03e6f7b DebugLoc propagation. 2/3 through file.
llvm-svn: 63650
2009-02-03 19:33:06 +00:00
Dan Gohman 561d1226b6 Tevert part of the x86 subtarget logic changes: when -march=x86-64
is given, override the subtarget settings and enable 64-bit support.
This restores the earlier behavior, and fixes regressions on
Non-64-bit-capable x86-32 hosts.

This isn't necessarily the best approach, but the most obvious
alternative is to require -mcpu=x86-64 or -mattr=+64bit to be used
with -march=x86-64 when the host doesn't have 64-bit support. This
makes things little more consistent, but it's less convenient, and
it has the practical drawback of requiring lots of test changes, so
I opted for the above approach for now.

llvm-svn: 63642
2009-02-03 18:53:21 +00:00
Bill Wendling e3c78361d3 Create DebugLoc information in FastISel. Several temporary methods were
created. Specifically, those BuildMIs which use
"DebugLoc::getUnknownLoc()". I'll remove them soon.

llvm-svn: 63584
2009-02-03 00:55:04 +00:00
Dan Gohman 7403751e16 Change Feature64Bit to not imply FeatureSSE2. All x86-64 hardware has
SSE2, however it's possible to disable SSE2, and the subtarget support
code thinks that if 64-bit implies SSE2 and SSE2 is disabled then
64-bit should also be disabled. Instead, just mark all the 64-bit
subtargets as explicitly supporting SSE2.

Also, move the code that makes -march=x86-64 enable 64-bit support by
default to only apply when there is no explicit subtarget. If you
need to specify a subtarget and you want 64-bit code, you'll need to
select a subtarget that supports 64-bit code.

llvm-svn: 63575
2009-02-03 00:04:43 +00:00
Torok Edwin e83866065b Only force SSE level if it is not correct.
Add an assert to check HasX86_64 status.

llvm-svn: 63552
2009-02-02 21:57:34 +00:00
Torok Edwin 5dbd26ae0f remove #if 0 code on Bill's request.
llvm-svn: 63542
2009-02-02 20:23:02 +00:00
Sanjiv Gupta 50aeb12d80 Made the common case of default address space directive as non-virtual for performance reasons. Provide a single virtual interface for directives of all sizes in non-default address spaces.
llvm-svn: 63521
2009-02-02 16:53:06 +00:00
Evan Cheng dc636c4080 ADD / SUB / SMUL / UMUL with overflow second result top bits must be zero.
llvm-svn: 63509
2009-02-02 09:15:04 +00:00
Evan Cheng 4988c597b3 Add comment.
llvm-svn: 63506
2009-02-02 08:19:07 +00:00
Evan Cheng 50e15bdf81 Teach LowerBRCOND to recognize (xor (setcc x), 1). The xor inverts the condition. It's normally transformed by the dag combiner, unless the condition is set by a arithmetic op with overflow.
llvm-svn: 63505
2009-02-02 08:07:36 +00:00
Torok Edwin a2d1f35e9a Implement -mno-sse: if SSE is disabled on x86-64, don't store XMM on stack for
var-args, and don't allow FP return values

llvm-svn: 63495
2009-02-01 18:15:56 +00:00
Duncan Sands 3ed768868d Fix PR3453 and probably a bunch of other potential
crashes or wrong code with codegen of large integers:
eliminate the legacy getIntegerVTBitMask and
getIntegerVTSignBit methods, which returned their
value as a uint64_t, so couldn't handle huge types.

llvm-svn: 63494
2009-02-01 18:06:53 +00:00
Dale Johannesen 555a375bb6 Make LowerCallTo and LowerArguments take a DebugLoc
argument.  Adjust all callers and overloaded versions.

llvm-svn: 63444
2009-01-30 23:10:59 +00:00