4d633542f2
Avoid creating a metadata slot for all metadata that contains an instruction
...
llvm-svn: 90581
2009-12-04 20:07:10 +00:00
9e67255748
Handle recursive PHI's.
...
llvm-svn: 90575
2009-12-04 19:09:10 +00:00
a6bd3f5f5e
Fix crasher when N->getElement(n) is NULL
...
llvm-svn: 90572
2009-12-04 18:29:23 +00:00
6154dbd5ee
Add a pre-regalloc tail duplication pass.
...
llvm-svn: 90567
2009-12-04 09:42:45 +00:00
0f1cc35c65
Don't try to be cute with undef optimization here. Let ProcessImplicitDefs handle it.
...
llvm-svn: 90566
2009-12-04 09:23:37 +00:00
1602277b70
Add note about a subtle bug in this code. Does not effect the main
...
architectures that LLVM targets, because they don't use this code.
llvm-svn: 90564
2009-12-04 08:42:17 +00:00
c5b2ac4d97
Fix typo and add missing include.
...
llvm-svn: 90557
2009-12-04 08:17:07 +00:00
4665141ebd
Added debug output for inherited passes that are invalidated.
...
llvm-svn: 90553
2009-12-04 06:58:24 +00:00
1ddfd9f96c
Fix PR5551 by not ignoring the top level constantexpr when
...
folding a load from constant.
llvm-svn: 90545
2009-12-04 06:29:29 +00:00
6d947a0774
add to cmake
...
llvm-svn: 90539
2009-12-04 04:15:36 +00:00
b63051caf6
add the start of a class used to handle phi translation in memdep and
...
gvn (this is just a skeleton so far). This will ultimately be used
to fix a nasty miscompilation with GVN.
llvm-svn: 90518
2009-12-04 02:10:16 +00:00
b7176a13a4
Teach AsmWriter to write inline (not via a global metadata slot) metadata that contains an instruction
...
llvm-svn: 90512
2009-12-04 01:35:02 +00:00
2107eb70d9
Fix a comment typo.
...
llvm-svn: 90511
2009-12-04 01:33:04 +00:00
2bd9609992
add an assert to make it really clear what this is doing. Return singularval as
...
a compile time perf optimization to avoid a load.
llvm-svn: 90507
2009-12-04 01:03:32 +00:00
ca9cf65455
Also attempt trivial coalescing for live intervals that end in a copy.
...
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.
The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.
This patch takes care of a few more cases that r90163 missed.
llvm-svn: 90502
2009-12-04 00:16:04 +00:00
e156f611ab
- If the reaching definition is an undef and the use is a PHI, add the implicit_def to the end of the source block.
...
- When reaching value is replaced with another, update the cache as well.
llvm-svn: 90501
2009-12-04 00:09:05 +00:00
3b666fef67
Insert composite type DIE into the map before processing type fields. This allows fields to find their context DIE from the map.
...
llvm-svn: 90498
2009-12-03 23:46:57 +00:00
fa23223d4a
Add ParseInlineMetadata() which can parses metadata that refers to an instruction. Extend ParseParameterList() to use this new function so that calls to llvm.dbg.declare can pass inline metadata
...
llvm-svn: 90497
2009-12-03 23:40:58 +00:00
5f9f721e95
remove out of date FIXME.
...
llvm-svn: 90490
2009-12-03 21:55:01 +00:00
b2c1529d8f
Handle undef values properly.
...
llvm-svn: 90489
2009-12-03 21:51:55 +00:00
8a19371370
Watch out for PHI instruction with no source operands.
...
llvm-svn: 90488
2009-12-03 21:50:58 +00:00
53bdae3802
Fix a comment typo.
...
llvm-svn: 90487
2009-12-03 21:47:07 +00:00
bbd6b6ddf4
Fix ExpandShiftWithUnknownAmountBit, which was completely bogus.
...
Pointed out by Javier Martinez (who also provided a patch). Since
this logic is not used on (for example) x86, I guess nobody noticed.
Tested by generating SHL, SRL, SRA on various choices of i64 for all
possible shift amounts, and comparing with gcc. Since I did this on
x86-32, I had to force the use of ExpandShiftWithUnknownAmountBit.
What I'm saying here is that I don't have a testcase I can add to the
repository.
llvm-svn: 90482
2009-12-03 21:37:32 +00:00
18c7cbd99b
Clean up some loop logic.
...
llvm-svn: 90481
2009-12-03 20:49:10 +00:00
eb57c59b66
Add support to emit debug info for virtual functions and virtual base classes.
...
llvm-svn: 90474
2009-12-03 19:11:07 +00:00
083f229ba2
Print a newline after the Args: line so that unrelated errs() output doesn't
...
end up on the same line.
llvm-svn: 90473
2009-12-03 19:03:18 +00:00
daea8420e9
Fix MSVC build.
...
llvm-svn: 90454
2009-12-03 13:23:03 +00:00
506891de63
Convert ProfileVerifier to template so it can be used for different types of ProfileInfo.
...
llvm-svn: 90451
2009-12-03 12:55:57 +00:00
7dd85bfdff
Do not create negative edge weights in ProfileEstimator.
...
Use integer values for weights to prevent rounding errors.
Make ProfileEstimator more robust in general CFGs.
llvm-svn: 90449
2009-12-03 12:41:14 +00:00
ff53d4694c
Add an implementation of the delta debugging algorithm.
...
- This is a pretty slow / memory intensive implementation, and I will likely
change it to an iterative model, but it works.
llvm-svn: 90447
2009-12-03 11:12:42 +00:00
b87d0f0662
Use ProfileInfo-API in ProfileInfo Loader and do more assertions.
...
llvm-svn: 90446
2009-12-03 11:00:37 +00:00
312288b30c
Converted ProfileInfo to template, added more API for ProfileInfo-preserving.
...
llvm-svn: 90445
2009-12-03 09:30:12 +00:00
1bbe6be037
Teach tail duplication to update SSA form. Work in progress.
...
llvm-svn: 90432
2009-12-03 08:43:53 +00:00
f05330a5c8
expand note.
...
llvm-svn: 90429
2009-12-03 07:43:46 +00:00
d1e4ee3c2b
add a note
...
llvm-svn: 90428
2009-12-03 07:41:54 +00:00
9655f84662
Don't pull vector sext through both hands of a logical operation, since doing so prevents the fusion of vector sext and setcc into vsetcc.
...
Add a testcase for the above transformation.
Fix a bogus use of APInt noticed while tracking this down.
llvm-svn: 90423
2009-12-03 07:11:29 +00:00
c831fac043
fix a build problem with VC++, PR5664, patch by Alp Toker!
...
llvm-svn: 90419
2009-12-03 06:58:32 +00:00
0bbd3077ce
Recognize canonical forms of vector shuffles where the same vector is used for
...
both source operands. In the canonical form, the 2nd operand is changed to an
undef and the shuffle mask is adjusted to only reference elements from the 1st
operand. Radar 7434842.
llvm-svn: 90417
2009-12-03 06:40:55 +00:00
32042f9475
Don't call getValueType() on a null SDValue
...
llvm-svn: 90415
2009-12-03 05:15:35 +00:00
0b6e260066
Fix this crasher, and add a FIXME for a missed optimization.
...
llvm-svn: 90408
2009-12-03 03:43:29 +00:00
7145382389
Fill out codegen SSA updater. It's not yet tested.
...
llvm-svn: 90395
2009-12-03 02:31:43 +00:00
aba7d48764
Revert r90371. It was causing build failures.
...
llvm-svn: 90383
2009-12-03 01:54:07 +00:00
8392456f1b
Don't hang on to pointers or references after vector::push_back.
...
The MO reference to a MachineOperand can be invalidated by
MachineInstr::addOperand. Don't even use it for debugging.
llvm-svn: 90381
2009-12-03 01:49:56 +00:00
236526dd18
Emit method definition DIE at module level (even for methods with inlined functino body at soure level) so that the debugger can invoke it. This fixes many test failures in gdb test suite.
...
llvm-svn: 90375
2009-12-03 01:25:38 +00:00
693969eb35
Further improvements: refactoring code that does the same thing into one
...
function, converting "dyn_cast" to "cast", asserting the correct things, and
other general cleanups.
llvm-svn: 90371
2009-12-03 01:15:46 +00:00
765ac33a1a
yay for case insensitive file systems (?)
...
llvm-svn: 90370
2009-12-03 01:10:05 +00:00
77c36d68f3
fix PR5673 by being more careful about pointers to functions.
...
llvm-svn: 90369
2009-12-03 01:05:45 +00:00
73570673de
remove some dead std::ostream using code.
...
llvm-svn: 90366
2009-12-03 00:55:04 +00:00
a48f44d9ee
improve portability to avoid conflicting with std::next in c++'0x.
...
Patch by Howard Hinnant!
llvm-svn: 90365
2009-12-03 00:50:42 +00:00
1ed59c63e3
This initial code is meant to convert TargetData to use an AbstractTypesUser so
...
that it doesn't have dangling pointers when abstract types are resolved. This
modifies it somewhat to address comments: making the "StructLayoutMap" an
anonymous structure, calling "removeAbstractTypeUser" when appropriate, and
adding asserts where helpful.
llvm-svn: 90362
2009-12-03 00:17:12 +00:00
a3b825edd1
Fix CMake makefiles
...
llvm-svn: 90354
2009-12-02 22:19:31 +00:00
20e9d030c9
Skeleton for MachineInstr level SSA updater.
...
llvm-svn: 90353
2009-12-02 22:02:52 +00:00
51663f7165
Add MaxStackAlignment.cpp to CMake
...
llvm-svn: 90337
2009-12-02 19:31:07 +00:00
2c3a6c6589
Factor the stack alignment calculations out into a target independent pass.
...
No functionality change.
llvm-svn: 90336
2009-12-02 19:30:24 +00:00
fffbc0c5d9
Don't count PHI instructions toward the limit for tail duplicating a block.
...
llvm-svn: 90326
2009-12-02 17:15:24 +00:00
d831ef4945
Move EliminateDuplicatePHINodes() from SimplifyCFG.cpp to Local.cpp
...
llvm-svn: 90324
2009-12-02 17:06:45 +00:00
3d207290fe
Cheap, mostly strict, stable sorting.
...
This is necessary for tests so the results are comparable.
llvm-svn: 90320
2009-12-02 15:57:15 +00:00
eee88bc5d2
Silence compiler warnings.
...
llvm-svn: 90319
2009-12-02 15:33:44 +00:00
8c33959df2
Clarify that DIEString does not keep a copy of the string.
...
llvm-svn: 90318
2009-12-02 15:25:16 +00:00
b9878ee6b6
Cleanup/remove some parts of the lifetime region handling code in memdep and GVN,
...
per Chris' comments. Adjust testcases to match.
llvm-svn: 90304
2009-12-02 07:35:19 +00:00
c468025ac9
factor some code better.
...
llvm-svn: 90299
2009-12-02 06:44:58 +00:00
2764b4dc55
formatting cleanups.
...
llvm-svn: 90298
2009-12-02 06:35:55 +00:00
eea42c7b51
tidy up, remove dependence on order of evaluation of function args from EmitMemCpy.
...
llvm-svn: 90297
2009-12-02 06:05:42 +00:00
bb3eac9e7a
Fixed an assertion failure for tracking sext of a vector of integers
...
llvm-svn: 90290
2009-12-02 04:59:58 +00:00
a5749bda2c
Add utility routine to create subprogram definition entry from subprogram declaration entry.
...
llvm-svn: 90282
2009-12-01 23:09:02 +00:00
a605b9124a
Reuse existing subprogram DIE.
...
llvm-svn: 90281
2009-12-01 23:07:59 +00:00
0e3b78a6c2
return more useful error messages by using strerror to format errno
...
instead of returning an ambiguous reason.
llvm-svn: 90275
2009-12-01 22:51:41 +00:00
732351f732
Fix PR5391: support early clobber physical register def tied with a use (ewwww)
...
- A valno should be set HasRedefByEC if there is an early clobber def in the middle of its live ranges. It should not be set if the def of the valno is defined by an early clobber.
- If a physical register def is tied to an use and it's an early clobber, it just means the HasRedefByEC is set since it's still one continuous live range.
- Add a couple of missing checks for HasRedefByEC in the coalescer. In general, it should not coalesce a vr with a physical register if the physical register has a early clobber def somewhere. This is overly conservative but that's the price for using such a nasty inline asm "feature".
llvm-svn: 90269
2009-12-01 22:25:00 +00:00
e914c0eaa0
rename some variables.
...
llvm-svn: 90258
2009-12-01 21:16:01 +00:00
506b858c45
tidy
...
llvm-svn: 90257
2009-12-01 21:15:15 +00:00
b2ae02979f
Add edge source labels to SelectionDAG graphs, now that the graph printing
...
framework omits differentiated edge sources in the case where the labels
are empty strings.
llvm-svn: 90254
2009-12-01 19:20:00 +00:00
8def6e3daf
Minor cleanups.
...
llvm-svn: 90253
2009-12-01 19:16:15 +00:00
939c828604
Trim an unnecessary #include.
...
llvm-svn: 90252
2009-12-01 19:13:27 +00:00
0a2c0bcb14
Clear function specific containers while processing end of a function, even if DW_TAG_subprogram for current function is not found.
...
llvm-svn: 90247
2009-12-01 18:13:48 +00:00
36d4dec28a
Thumb1 exception handling setjmp
...
llvm-svn: 90246
2009-12-01 18:10:36 +00:00
86fc920742
For VLDM/VSTM (Advanced SIMD), set encoding bits Inst{11-8} to 0b1011.
...
llvm-svn: 90243
2009-12-01 17:37:06 +00:00
defc47088a
Move PHIElimination::isLiveOut method to LiveVariables.
...
We want LiveVariables clients to use methods rather than accessing the
getVarInfo data structure directly. That way it will be possible to change the
LiveVariables representation.
llvm-svn: 90240
2009-12-01 17:13:31 +00:00
9c2053b242
fix 255.vortex again, third time's the charm.
...
llvm-svn: 90217
2009-12-01 07:33:32 +00:00
3c9aca9079
fix PR5640 by tracking whether a block is the header of a loop more
...
precisely, which prevents us from infinitely peeling the loop.
llvm-svn: 90211
2009-12-01 06:04:43 +00:00
26667abbd3
Use CFG connectedness as a secondary sort key when deciding the order of copy coalescing.
...
This means that well connected blocks are copy coalesced before the less connected blocks. Connected blocks are more difficult to
coalesce because intervals are more complicated, so handling them first gives a greater chance of success.
llvm-svn: 90194
2009-12-01 03:03:00 +00:00
461b937053
Devang pointed out that this code should use DIScope instead of
...
DICompileUnit. This code now prints debug filenames successfully.
llvm-svn: 90181
2009-12-01 00:45:56 +00:00
1d31fc9123
Fix PR5614: parts of a physical register def may be killed the rest.
...
llvm-svn: 90180
2009-12-01 00:44:45 +00:00
ee536b0ea4
For VMOV (immediate), make some of the encoding bits (cmode and op) unspecified.
...
For VMOVv*i[16,32], op bit is don't care, and some cmode bits vary depending on
the immediate values.
Ref: Table A7-15 Modified immediate values for Advanced SIMD instructions.
llvm-svn: 90173
2009-12-01 00:02:02 +00:00
ae466efe2e
If pointer type has a name then do not ignore the name.
...
llvm-svn: 90172
2009-11-30 23:56:56 +00:00
3ee8bc9b35
Minor whitespace fixes.
...
llvm-svn: 90166
2009-11-30 23:33:53 +00:00
6f51309021
Fix a minor inconsistency.
...
llvm-svn: 90165
2009-11-30 23:33:37 +00:00
020d8d4c63
New virtual registers created for spill intervals should inherit allocation hints from the original register.
...
This helps us avoid silly copies when rematting values that are copied to a physical register:
leaq _.str44(%rip), %rcx
movq %rcx, %rsi
call _strcmp
becomes:
leaq _.str44(%rip), %rsi
call _strcmp
The coalescer will not touch the movq because that would tie down the physical register.
llvm-svn: 90163
2009-11-30 22:55:54 +00:00
598f8ff9e5
Reprioritize tests for tail duplication to be aggressive about indirect
...
branches even when optimizing for code size. Unless we find evidence to the
contrary in the future, the special treatment for indirect branches does not
have a significant effect on code size, and performance still matters with -Os.
llvm-svn: 90147
2009-11-30 18:56:45 +00:00
505ddaa4dc
Remove isProfitableToDuplicateIndirectBranch target hook. It is profitable
...
for all the processors where I have tried it, and even when it might not help
performance, the cost is quite low. The opportunities for duplicating
indirect branches are limited by other factors so code size does not change
much due to tail duplicating indirect branches aggressively.
llvm-svn: 90144
2009-11-30 18:35:03 +00:00
c168a52627
Fix some more ARM unified syntax warnings.
...
llvm-svn: 90141
2009-11-30 17:47:19 +00:00
9caf3801ca
Fix last DOTGraphTraits problems in CompilationGraph.
...
llvm-svn: 90136
2009-11-30 13:34:51 +00:00
0729c6e281
Remove forgotten ShortNames in Trie and CompilationGraph
...
llvm-svn: 90135
2009-11-30 13:14:13 +00:00
dd7f2e797f
Remove ShortNames from getNodeLabel in DOTGraphTraits
...
llvm-svn: 90134
2009-11-30 12:38:47 +00:00
90d334032a
Instantiate DefaultDOTGraphTraits
...
llvm-svn: 90133
2009-11-30 12:38:13 +00:00
f7495f497a
Small PostDominatorTree improvements
...
* Do not SEGFAULT if tree entryNode() is NULL
* Print function names in dotty printer
llvm-svn: 90130
2009-11-30 12:06:37 +00:00
2d32947099
Revert r90107, fixing test/Transforms/GVN/2009-11-29-ReverseMap.ll and the
...
llvm-gcc build.
llvm-svn: 90113
2009-11-30 07:05:51 +00:00
32f8bb9ed4
Added support to allow clients to custom widen. For X86, custom widen vectors for
...
divide/remainder since these operations can trap by unroll them and adding undefs
for the resulting vector.
llvm-svn: 90108
2009-11-30 02:42:02 +00:00
4d252d20e8
reapply r90093 with an addition of keeping the forward
...
and reverse nonlocal memdep maps in synch, this should
fix 255.vortex.
llvm-svn: 90107
2009-11-30 02:26:29 +00:00
e35e6f097d
Teach ConstantFolding to do a better job when folding gep(bitcast).
...
This permits the devirtualization of llvm.org/PR3100#c9 when compiled by clang.
llvm-svn: 90099
2009-11-29 21:40:55 +00:00
3efc050ac4
Revert r90089 for now, it's breaking selfhost.
...
llvm-svn: 90097
2009-11-29 21:17:48 +00:00
0311ade94c
revert this patch for now, it causes failures of:
...
LLVM::Transforms/GVN/2009-02-17-LoadPRECrash.ll
LLVM::Transforms/GVN/2009-06-17-InvalidPRE.ll
llvm-svn: 90096
2009-11-29 21:14:59 +00:00
52e7715b0b
Fix a really nasty caching bug I introduced in memdep. An entry
...
was being added to the Result vector, but not being put in the
cache. This means that if the cache was reused wholesale for a
later query that it would be missing this entry and we'd do an
incorrect load elimination.
Unfortunately, it's not really possible to write a useful
testcase for this, but this unbreaks 255.vortex.
llvm-svn: 90093
2009-11-29 21:09:36 +00:00
bfa993ab20
Fix two FIXMEs.
...
llvm-svn: 90089
2009-11-29 20:29:30 +00:00
0a1f25b927
Detabify.
...
llvm-svn: 90085
2009-11-29 18:10:39 +00:00
8cb52c266f
Remove dead returns.
...
llvm-svn: 90083
2009-11-29 17:42:58 +00:00
4b9f0b6720
This patch ensures that Path::GetMainExecutable is able to handle the
...
case where realpath() fails. When this occurs we segfault trying to
create a std::string from a NULL pointer.
Fixes PR5635.
llvm-svn: 90082
2009-11-29 17:19:48 +00:00
1cc4cca193
add testcases for the foo_with_overflow op xforms added recently and
...
fix bugs exposed by the tests. Testcases from Alastair Lynn!
llvm-svn: 90056
2009-11-29 02:57:29 +00:00
58ccf88c36
update and consolidate the load pre notes.
...
llvm-svn: 90050
2009-11-29 02:19:52 +00:00
cd261c9c26
Implement PR5634.
...
llvm-svn: 90046
2009-11-29 00:51:17 +00:00
218a3393f4
Teach memdep to look for memory use intrinsics during dependency queries. Fixes
...
PR5574.
llvm-svn: 90045
2009-11-28 21:27:49 +00:00
32140312ca
reenable load address insertion in load pre. This allows us to
...
handle cases like this:
void test(int N, double* G) {
long j;
for (j = 1; j < N - 1; j++)
G[j+1] = G[j] + G[j+1];
}
where G[1] isn't live into the loop.
llvm-svn: 90041
2009-11-28 16:08:18 +00:00
44da5bd837
Enhance InsertPHITranslatedPointer to be able to return a list of newly
...
inserted instructions. No functionality change until someone starts using it.
llvm-svn: 90039
2009-11-28 15:39:14 +00:00
c7bc66dfc6
implement a FIXME: limit the depth that DecomposeGEPExpression goes the same
...
way that getUnderlyingObject does it.
This fixes the 'DecomposeGEPExpression and getUnderlyingObject disagree!'
assertion on sqlite3.
llvm-svn: 90038
2009-11-28 15:12:41 +00:00
d5bd369a0f
enable code to handle un-phi-translatable cases more aggressively:
...
if we don't have an address expression available in a predecessor,
then model this as the value being clobbered at the end of the pred
block instead of being modeled as a complete phi translation failure.
This is important for PRE of loads because we want to see that the
load is available in all but this predecessor, and complete phi
translation failure results in not getting any information about
predecessors.
This doesn't do anything until I renable code insertion since PRE
now sees that it is available in all but one predecessors, but can't
insert the addressing in the predecessor that is missing it to
eliminate the redundancy.
llvm-svn: 90037
2009-11-28 14:54:10 +00:00
cf0b198827
disable value insertion for now, I need to figure out how
...
to inform GVN about the newly inserted values. This fixes
PR5631.
llvm-svn: 90022
2009-11-27 22:50:07 +00:00
2be52e72ae
Rework InsertPHITranslatedPointer to handle the recursive case, this
...
fixes PR5630 and sets the stage for the next phase of goodness (testcase
pending).
llvm-svn: 90019
2009-11-27 22:05:15 +00:00
4ee17e1482
recursively phi translate bitcast operands too, for consistency.
...
llvm-svn: 90016
2009-11-27 20:25:30 +00:00
6e0525141f
Oops! Fix bug introduced in my recent cleanup change. Thanks to Tobias Grosser
...
for pointing this out.
llvm-svn: 90015
2009-11-27 19:57:53 +00:00
2f0354ecf0
add support for recursive phi translation and phi
...
translation of add with immediate. This allows us
to optimize this function:
void test(int N, double* G) {
long j;
G[1] = 1;
for (j = 1; j < N - 1; j++)
G[j+1] = G[j] + G[j+1];
}
to only do one load every iteration of the loop.
llvm-svn: 90013
2009-11-27 19:11:31 +00:00
3d9823b9cf
factor some logic out of instcombine into a new SimplifyAddInst method.
...
llvm-svn: 90011
2009-11-27 17:42:22 +00:00
83a4a9868f
add a deadargelim note.
...
llvm-svn: 90009
2009-11-27 17:12:30 +00:00
ca9e0e83b3
This testcase is actually only partially redundant, and requires
...
the FIXME I added yesterday to be implemented.
llvm-svn: 90008
2009-11-27 16:53:57 +00:00
2226db66ab
fix PR5436 by making the 'simple' case of SRoA not promote out of range
...
array indexes. The "complex" case of SRoA still handles them, and correctly.
This fixes a weirdness where we'd correctly avoid transforming A[0][42] if
the 42 was too large, but we'd only do it if it was one gep, not two separate
ones.
llvm-svn: 90007
2009-11-27 16:37:41 +00:00
6d294de548
add comment.
...
llvm-svn: 90002
2009-11-27 08:40:14 +00:00
ac323297e0
reduce nesting, no functionality change.
...
llvm-svn: 90001
2009-11-27 08:37:22 +00:00
8e62d0a93d
limit the recursion depth of GetLinearExpression. This
...
fixes a crash analyzing consumer-lame, which had an "%X = add %X, 1"
in unreachable code.
llvm-svn: 90000
2009-11-27 08:32:52 +00:00
25be93dfed
teach GVN's load PRE to insert computations of the address in predecessors
...
where it is not available. It's unclear how to get this inserted
computation into GVN's scalar availability sets, Owen, help? :)
llvm-svn: 89997
2009-11-27 08:25:10 +00:00
a9a76ccf56
Fix phi translation in load PRE to agree with the phi
...
translation done by memdep, and reenable gep translation
again.
llvm-svn: 89992
2009-11-27 06:31:14 +00:00
b018bda665
redisable this, my bootstrap worked because it wasn't an optimized build, whoops.
...
llvm-svn: 89991
2009-11-27 05:53:01 +00:00
fb8a718fc3
try again.
...
llvm-svn: 89990
2009-11-27 05:19:56 +00:00
14444f5c1a
this is causing buildbot failures, disable for now.
...
llvm-svn: 89985
2009-11-27 01:52:22 +00:00
cc6d29286c
this (and probably several others) are now done.
...
llvm-svn: 89982
2009-11-27 00:35:04 +00:00
5030c6ab21
teach phi translation of GEPs to simplify geps like 'gep x, 0'.
...
This allows us to compile the example from PR5313 into:
LBB1_2: ## %bb
incl %ecx
movb %al, (%rsi)
movslq %ecx, %rax
movb (%rdi,%rax), %al
testb %al, %al
jne LBB1_2
instead of:
LBB1_2: ## %bb
movslq %eax, %rcx
incl %eax
movb (%rdi,%rcx), %cl
movb %cl, (%rsi)
movslq %eax, %rcx
cmpb $0, (%rdi,%rcx)
jne LBB1_2
llvm-svn: 89981
2009-11-27 00:34:38 +00:00
8574aba4ea
factor some instcombine simplifications for getelementptr out to a new
...
SimplifyGEPInst method in InstructionSimplify.h. No functionality change.
llvm-svn: 89980
2009-11-27 00:29:05 +00:00
4c88e814b8
teach memdep to do trivial PHI translation of GEPs. More to
...
come.
llvm-svn: 89979
2009-11-27 00:07:37 +00:00
9bd2136ca3
Teach memdep to phi translate bitcasts. This allows us to compile
...
the example in GCC PR16799 to:
LBB1_2: ## %bb1
movl %eax, %eax
subq %rax, %rdi
movq %rdi, (%rcx)
movl (%rdi), %eax
testl %eax, %eax
je LBB1_2
instead of:
LBB1_2: ## %bb1
movl (%rdi), %ecx
subq %rcx, %rdi
movq %rdi, (%rax)
cmpl $0, (%rdi)
je LBB1_2
llvm-svn: 89978
2009-11-26 23:41:07 +00:00
a75fe185ba
Fix typo spotted by Gabor Greif.
...
llvm-svn: 89976
2009-11-26 23:19:05 +00:00
c49f5ac7d8
factor some code out into some helper functions.
...
llvm-svn: 89975
2009-11-26 23:18:49 +00:00
898e8f756a
Clean up file, no functionality change.
...
llvm-svn: 89974
2009-11-26 22:54:26 +00:00
0f77ac2640
Add a hack for PR5601, a crash on obsolete syntax that we plan to
...
remove in LLVM 3.0
llvm-svn: 89973
2009-11-26 22:48:23 +00:00
a5bc618a91
fix crash on Transforms/InstCombine/intrinsics.ll introduced by r89970
...
llvm-svn: 89972
2009-11-26 22:08:06 +00:00
a73ecf0b00
Fix PR5471 by removing an instcombine xform. Some pieces of the code
...
generates store to undef and some generates store to null as the idiom
for undefined behavior. Since simplifycfg zaps both, don't remove the
undefined behavior in instcombine.
llvm-svn: 89971
2009-11-26 22:04:42 +00:00
5b83ba215d
implement a bunch of xforms for overflow intrinsics, based on a patch
...
by Alastair Lynn.
llvm-svn: 89970
2009-11-26 21:42:47 +00:00
9594db5693
Rename new TailDuplicationPass to avoid name conflict with the old one.
...
llvm-svn: 89968
2009-11-26 21:38:41 +00:00
1bf7ff704a
Implement PR1143 (at -m64) by making basicaa look through extensions. We
...
previously already handled it at -m32 because there were no i32->i64
extensions for addressing.
llvm-svn: 89959
2009-11-26 18:53:33 +00:00
d7cabea8ca
fix two transposed lines duncan caught and add an explanatory comment.
...
llvm-svn: 89958
2009-11-26 18:35:46 +00:00
9aa846956e
this todo is resolved.
...
llvm-svn: 89957
2009-11-26 17:14:10 +00:00
29f82a1465
move DecomposeGEPExpression out into ValueTracking.cpp
...
llvm-svn: 89956
2009-11-26 17:12:50 +00:00
631c5b2cb9
teach GetLinearExpression to be a bit more aggressive.
...
llvm-svn: 89955
2009-11-26 17:00:01 +00:00
5c1cfc252c
resolve a fixme. I haven't figured out how to write a testcase
...
to exercise this though.
llvm-svn: 89954
2009-11-26 16:52:32 +00:00
29bc8a91d3
Teach basicaa that x|c == x+c when the c bits of x are clear. This
...
allows us to compile the example in readme.txt into:
LBB1_1: ## %bb
movl 4(%rdx,%rax), %ecx
movl %ecx, %esi
imull (%rdx,%rax), %esi
imull %esi, %ecx
movl %esi, 8(%rdx,%rax)
imull %ecx, %esi
movl %ecx, 12(%rdx,%rax)
movl %esi, 16(%rdx,%rax)
imull %ecx, %esi
movl %esi, 20(%rdx,%rax)
addq $16, %rax
cmpq $4000, %rax
jne LBB1_1
instead of:
LBB1_1:
movl (%rdx,%rax), %ecx
imull 4(%rdx,%rax), %ecx
movl %ecx, 8(%rdx,%rax)
imull 4(%rdx,%rax), %ecx
movl %ecx, 12(%rdx,%rax)
imull 8(%rdx,%rax), %ecx
movl %ecx, 16(%rdx,%rax)
imull 12(%rdx,%rax), %ecx
movl %ecx, 20(%rdx,%rax)
addq $16, %rax
cmpq $4000, %rax
jne LBB1_1
GCC (4.2) doesn't seem to be able to eliminate the loads in this
testcase either, it generates:
L2:
movl (%rdx), %eax
imull 4(%rdx), %eax
movl %eax, 8(%rdx)
imull 4(%rdx), %eax
movl %eax, 12(%rdx)
imull 8(%rdx), %eax
movl %eax, 16(%rdx)
imull 12(%rdx), %eax
movl %eax, 20(%rdx)
addl $4, %ecx
addq $16, %rdx
cmpl $1002, %ecx
jne L2
llvm-svn: 89952
2009-11-26 16:26:43 +00:00
12dacdd359
teach basicaa that A[i] != A[i+1].
...
llvm-svn: 89951
2009-11-26 16:18:10 +00:00
7a5b56aca9
Change the other half of aliasGEP (which handles GEP differencing) to use DecomposeGEPExpression. This dramatically simplifies and shrinks the code by eliminating the horrible CheckGEPInstructions method, fixes a miscompilation ( @test3 ) and makes the code more aggressive. In particular, we now handle the @test4 case, which is reduced from the SmallPtrSet constructor. Missing this caused us to emit a variable length memset instead of a fixed size one.
...
llvm-svn: 89922
2009-11-26 02:17:34 +00:00
5341c9679d
Generalize DecomposeGEPExpression to exactly handle what Value::getUnderlyingObject does (when TD is around). This allows us to avoid calling DecomposeGEPExpression unless the ultimate alias check we care about passes, speedup up BasicAA a bit.
...
llvm-svn: 89920
2009-11-26 02:14:59 +00:00
8928899413
Implement a new DecomposeGEPExpression method, which decomposes a GEP into a list of scaled offsets. Use this to eliminate some previous ad-hoc code which was subtly broken (it assumed all Constant*'s were non-zero, but strange constant express could be zero).
...
llvm-svn: 89915
2009-11-26 02:13:03 +00:00
a99edbedd1
Use GEPOperator more pervasively to simplify code.
...
llvm-svn: 89914
2009-11-26 02:11:08 +00:00
8e09ad6f3c
update some notes slightly
...
llvm-svn: 89913
2009-11-26 01:51:18 +00:00
4f0b47d9e7
remove some redundant braces
...
llvm-svn: 89912
2009-11-26 01:50:12 +00:00
595a16300c
When all defs of a vr are implicit_def, delete all of the defs.
...
llvm-svn: 89905
2009-11-26 00:32:36 +00:00
2d4ff12da9
Split tail duplication into a separate pass. This is needed to avoid
...
running tail duplication when doing branch folding for if-conversion, and
we also want to be able to run tail duplication earlier to fix some
reg alloc problems. Move the CanFallThrough function from BranchFolding
to MachineBasicBlock so that it can be shared by TailDuplication.
llvm-svn: 89904
2009-11-26 00:32:21 +00:00
8981b3abe5
Rollback changes r89516: Added two SubtargetFeatures::AddFeatures methods, which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods.
...
llvm-svn: 89893
2009-11-25 22:44:18 +00:00
44df27e964
ProcessImplicitDefs should watch out for invalidated iterator and extra implicit operands on copies.
...
llvm-svn: 89880
2009-11-25 21:13:39 +00:00
4419301d81
Tail duplicate indirect branches for PowerPC, too.
...
With the testcase for pr3120, the "threaded interpreter" runtime decreases
from 1788 to 1413 with this change.
llvm-svn: 89877
2009-11-25 19:57:14 +00:00
4cd30817d3
Avoid some possibly unsafe uses of StringRef::data().
...
llvm-svn: 89873
2009-11-25 18:26:09 +00:00
2d9caf9fe5
Use StringRef (again) in DebugInfo interface.
...
llvm-svn: 89866
2009-11-25 17:36:49 +00:00
120f729eca
Based on the testcase for pr3120, running on my MacPro with Xeon processors,
...
it is definitely profitable to tail duplicate indirect branches for x86.
This is likely to be true to various degrees for all modern x86 processors.
llvm-svn: 89865
2009-11-25 17:27:53 +00:00
2db07581b7
Support PIC loading of constant pool entries
...
llvm-svn: 89863
2009-11-25 12:17:58 +00:00
900f2ce31c
Sketch structure for X86 disassembler.
...
llvm-svn: 89850
2009-11-25 06:53:08 +00:00
746782dde5
API change Path::isSpecialFile to Path::isRegularFile, improve semantics in regards to comments from 89765 post review.
...
llvm-svn: 89848
2009-11-25 06:32:19 +00:00
7baad7365a
Perform explicit instantiations in the proper namespace, since Clang diagnoses this ill-formity.
...
llvm-svn: 89846
2009-11-25 06:04:18 +00:00
2b8fed15e0
Reverting patch in revision 89758, initial attempt at fixing PR5373 has proven to be bogus.
...
llvm-svn: 89844
2009-11-25 05:38:41 +00:00
2c6d498ccc
Use endianess dependent offsets for load/store of doubles when
...
using two swc/lwc instead of sdc/ldc.
llvm-svn: 89826
2009-11-25 01:05:25 +00:00
e0eb336588
Fix compiler warnings.
...
llvm-svn: 89824
2009-11-25 00:58:21 +00:00
fa2741e0d3
Only include in the callee saved regs the sub registers to avoid
...
unnecessary save/restore.
llvm-svn: 89823
2009-11-25 00:47:43 +00:00
dce6f66cf0
Add proper emission of load/store double to stack slots for mips1 targets!
...
llvm-svn: 89821
2009-11-25 00:36:00 +00:00
d23ea6a33b
Revert r89803.
...
llvm-svn: 89819
2009-11-25 00:31:13 +00:00
d4d40670e8
Refactor target hook for tail duplication as requested by Chris.
...
Make tail duplication of indirect branches much more aggressive (for targets
that indicate that it is profitable), based on further experience with
this transformation. I compiled 3 large applications with and without
this more aggressive tail duplication and measured minimal changes in code
size. ("size" on Darwin seems to round the text size up to the nearest
page boundary, so I can only say that any code size increase was less than
one 4k page.) Radar 7421267.
llvm-svn: 89814
2009-11-24 23:35:49 +00:00
5ece8f0a20
Do not store R31 into the caller's link area on PPC.
...
This violates the ABI (that area is "reserved"), and
while it is safe if all code is generated with current
compilers, there is some very old code around that uses
that slot for something else, and breaks if it is stored
into. Adjust testcases looking for current behavior.
I've verified that the stack frame size is right in all
testcases, whether it changed or not. 7311323.
llvm-svn: 89811
2009-11-24 22:59:02 +00:00
29c9b709e3
Enable debug info for ppc-darwin.
...
llvm-svn: 89803
2009-11-24 21:38:54 +00:00
b3e0168428
Use StringRef instead of std::string in DIEString.
...
llvm-svn: 89793
2009-11-24 19:42:17 +00:00
21c2e100ba
Remove DebugLabelFolder pass. It is not used by dwarf writer anymore.
...
llvm-svn: 89790
2009-11-24 19:37:07 +00:00
c8654eb64e
Swith to pubtypes section before emitting pub types.
...
llvm-svn: 89787
2009-11-24 19:18:41 +00:00
7402c472c3
Remove bogus error handling code.
...
llvm-svn: 89786
2009-11-24 19:03:33 +00:00
dddf134a3c
Provide Path::isSpecialFile interface for PR5568.
...
llvm-svn: 89765
2009-11-24 15:19:10 +00:00
5fd452d596
Fix for PR5373, Credit to Jakub Staszak.
...
llvm-svn: 89758
2009-11-24 11:51:52 +00:00
184ec26fcd
Enable predication of NEON instructions in Thumb2 mode.
...
llvm-svn: 89748
2009-11-24 08:06:15 +00:00
04d2f2d192
Emit pubtypes.
...
llvm-svn: 89725
2009-11-24 01:14:22 +00:00
86dcae106d
Make capitalization of names starting "is" more consistent.
...
No functional change.
llvm-svn: 89724
2009-11-24 01:09:07 +00:00
ece825dc4f
Data type suffix must come after predicate.
...
llvm-svn: 89723
2009-11-24 01:05:23 +00:00
3f3a8b1c7e
<rdar://problem/6721894>. Allow multiple registers to be renamed together (super and sub) if necessary to break an anti-dependence.
...
llvm-svn: 89722
2009-11-24 00:59:08 +00:00
2522908653
Materialize global addresses via movt/movw pair, this is always better
...
than doing the same via constpool:
1. Load from constpool costs 3 cycles on A9, movt/movw pair - just 2.
2. Load from constpool might stall up to 300 cycles due to cache miss.
3. Movt/movw does not use load/store unit.
4. Less constpool entries => better compiler performance.
This is only enabled on ELF systems, since darwin does not have needed
relocations (yet).
llvm-svn: 89720
2009-11-24 00:44:37 +00:00
f890f51666
80 column violations
...
llvm-svn: 89718
2009-11-24 00:20:27 +00:00
f2ad571443
* Move stub allocation inside the JITEmitter, instead of exposing a
...
way for each TargetJITInfo subclass to allocate its own stubs. This
means stubs aren't as exactly-sized anymore, but it lets us get rid of
TargetJITInfo::emitFunctionStubAtAddr(), which lets ARM and PPC
support the eager JIT, fixing http://llvm.org/PR4816 .
* Rename the JITEmitter's stub creation functions to describe the kind
of stub they create. So far, all of them create lazy-compilation
stubs, but they sometimes get used when far-call stubs are needed.
Fixing http://llvm.org/PR5201 will involve fixing this.
llvm-svn: 89715
2009-11-23 23:35:19 +00:00
bf2956a88b
enable iv-users simplification by default
...
llvm-svn: 89713
2009-11-23 23:25:54 +00:00
de5dea869f
Remove ISD::DEBUG_LOC and ISD::DBG_LABEL, which are no longer used.
...
Note that "hasDotLocAndDotFile"-style debug info was already broken;
people wanting this functionality should implement it in the
AsmPrinter/DwarfWriter code.
llvm-svn: 89711
2009-11-23 23:20:51 +00:00
19b48370fb
Allow more than one stub to be being generated at the same time.
...
It's probably better in the long run to replace the
indirect-GlobalVariable system. That'll be done after a subsequent
patch.
llvm-svn: 89708
2009-11-23 22:49:00 +00:00
738a97a1db
Massive refactoring of NEON instructions. Separate opcode from data size specifier suffix, move \t up stream to instruction format, and fix more 80 column violations.
...
This fixes the NEON asm printing so the "predicate" field is printed between the opcode and the data type suffix.
llvm-svn: 89706
2009-11-23 21:57:23 +00:00
3650f4ed0c
Simplify this code.
...
llvm-svn: 89702
2009-11-23 21:30:55 +00:00
2e3f187cbd
Print the debug info line and column in MachineInstr::print even when there's
...
no filename. This situation is apparently fairly common right now.
llvm-svn: 89701
2009-11-23 21:29:08 +00:00
dbb4140f37
move fconst[sd] to UAL. <rdar://7414913>
...
llvm-svn: 89700
2009-11-23 21:08:25 +00:00
b6528d3244
Partially revert r84730 by removing N2VDup from ARMInstrFormats.td and modifying
...
VDUPLND and VDUPLNQ to derive from N2V instead of N2VDup. VDUPLND and VDUPLNQ
now expect op19_18 and op17_16 as the first two args.
llvm-svn: 89699
2009-11-23 21:00:43 +00:00
04c0e76772
fold immediate of a + Const into the user as a subtract if it can fit as a negated two-part immediate.
...
llvm-svn: 89694
2009-11-23 20:35:53 +00:00
5ad7416260
Revert r84572 by removing N3VImm from ARMInstrFormats.td now that we can specify
...
{?,?,?,?} as op11_8 for VEXTd and VEXTq.
llvm-svn: 89693
2009-11-23 20:09:13 +00:00
75e6a40d6d
Add CreateLocation varinat that accepts MDNode (with a default value).
...
llvm-svn: 89689
2009-11-23 19:11:20 +00:00
b5b51598ba
Revert r89487.
...
llvm-svn: 89686
2009-11-23 18:43:37 +00:00
e97457afbc
Partially revert r89377 by removing NLdStLN class definition from
...
ARMInstrFormats.td and fixing VLD[234]LN* and VST[234]LN* to derive from NLdSt
instead of NLdStLN.
llvm-svn: 89684
2009-11-23 18:16:16 +00:00
9d72cbf2d5
Move CopyCatchInfo into FunctionLoweringInfo.cpp too, for consistency.
...
llvm-svn: 89683
2009-11-23 18:12:11 +00:00
1a6c47f1cb
Rename SelectionDAGLowering to SelectionDAGBuilder, and rename
...
SelectionDAGBuild.cpp to SelectionDAGBuilder.cpp.
llvm-svn: 89681
2009-11-23 18:04:58 +00:00
ebc60ef80c
Make it clear that the index bit(s) of Vector Get Lane and Vector Set Lane
...
should be left unspecified now that Bob Wilson has fixed pr5470.
llvm-svn: 89676
2009-11-23 17:48:17 +00:00
91aad4b834
Move RegsForValue to an anonymous namespace, since it is only used
...
in this file.
llvm-svn: 89675
2009-11-23 17:46:23 +00:00
ad97b3dbd0
Move some more code out of SelectionDAGBuild.cpp and into
...
FunctionLoweringInfo.cpp.
llvm-svn: 89674
2009-11-23 17:42:46 +00:00
1f2457f8aa
Minor itinerary fixes for FP instructions.
...
llvm-svn: 89672
2009-11-23 17:34:12 +00:00
9b6515794f
Update CMake file.
...
llvm-svn: 89671
2009-11-23 17:26:04 +00:00
a3624b6099
Move the FunctionLoweringInfo class and some related utility functions out
...
of SelectionDAGBuild.h/cpp into its own files, to help separate
general lowering logic from SelectionDAG-specific lowering logic.
llvm-svn: 89667
2009-11-23 17:16:22 +00:00
214ef9a4ef
fix comment, thanks all :)
...
llvm-svn: 89666
2009-11-23 17:07:35 +00:00
1e7b37ebba
use the new isNoAlias method to simplify some code, only do an escaping check if
...
we have a non-constant pointer. Constant pointers can't be local.
llvm-svn: 89665
2009-11-23 16:46:41 +00:00
98e25326a0
whitespace cleanup, tidying
...
llvm-svn: 89664
2009-11-23 16:45:27 +00:00
84ed59abcf
speed up BasicAA a bit by implementing a long-standing TODO.
...
llvm-svn: 89663
2009-11-23 16:44:43 +00:00
05ebc8f71f
Move FunctionPassManagerImpl's dumpArguments and dumpPasses calls
...
out of its run function and into its doInitialization method, so
that it does the dump once instead of once per function.
llvm-svn: 89660
2009-11-23 16:24:18 +00:00
580b80d6d9
Make ConstantFoldConstantExpression recursively visit the entire
...
ConstantExpr, not just the top-level operator. This allows it to
fold many more constants.
Also, make GlobalOpt call ConstantFoldConstantExpression on
GlobalVariable initializers.
llvm-svn: 89659
2009-11-23 16:22:21 +00:00
1f522d98f8
Fix a use of an invalidated iterator in the case where there are multiple
...
adjacent uses of a dead basic block from the same user. This fixes PR5596.
llvm-svn: 89658
2009-11-23 16:13:39 +00:00
9d786d701d
I forgot to update the prototype for LLVMBuildIntCast when correcting
...
the body to not pass the name for the isSigned parameter. However it
seems that changing prototypes is a big-no-no, so here I revert the
previous change and pass "true" for isSigned, meaning this always does
a signed cast, which was the previous behaviour assuming the name was
not NULL! Some other C function needs to be introduced for the general
case of signed or unsigned casts. This hopefully unbreaks the ocaml
binding.
llvm-svn: 89648
2009-11-23 10:49:03 +00:00
890a1d120f
Start catching LLVMContext misuse in the verifier.
...
llvm-svn: 89646
2009-11-23 04:52:00 +00:00
15a1287c1f
Pull LLVMContext out of PromoteMemToReg.
...
llvm-svn: 89645
2009-11-23 03:50:44 +00:00
621fe5614e
Remove LLVMContext and its include.
...
llvm-svn: 89644
2009-11-23 03:34:29 +00:00
39dbfd3c58
Remove unused LLVMContext.
...
llvm-svn: 89642
2009-11-23 03:29:18 +00:00
4e3b3f3d92
Remove dead LLVMContext argument.
...
llvm-svn: 89641
2009-11-23 03:26:09 +00:00
922d4ab574
Reapply r88830 with a bugfix: this transform only applies to icmp eq/ne. This
...
fixes part of PR5438.
llvm-svn: 89639
2009-11-23 03:17:33 +00:00
5a308f5399
SourceMgr: Add ShowLine argument to PrintMessage, to allow suppressing the source line output.
...
llvm-svn: 89627
2009-11-22 22:08:00 +00:00
bf6d35893f
Add getFrameIndexReference() to TargetRegisterInfo, which allows targets to
...
tell debug info which base register to use to reference a frame index on a
per-index basis. This is useful, for example, in the presence of dynamic
stack realignment when local variables are indexed via the stack pointer and
stack-based arguments via the frame pointer.
llvm-svn: 89620
2009-11-22 20:14:00 +00:00
fd963e11f5
Move default FrameReg val to getFrameIndexReference(). Otherwise, debug info can get bogus values.
...
llvm-svn: 89618
2009-11-22 20:05:32 +00:00
00e9c6103b
80-column cleanup
...
llvm-svn: 89612
2009-11-22 19:20:36 +00:00
8a3fdae0aa
Teach MachineBasicBlock::updateTerminator() to handle a failing TII->ReverseBranchCondition(Cond) call.
...
This fixes the MallocBench/cfrac test case regression.
llvm-svn: 89608
2009-11-22 18:28:04 +00:00
a13c9d1a5e
add fixme for dubious code. Duncan, what do you think?
...
llvm-svn: 89602
2009-11-22 16:16:48 +00:00
db1e9f1290
remove a silly condition that doesn't make a lot of sense anymore.
...
llvm-svn: 89601
2009-11-22 16:15:59 +00:00
d6a49ad25a
reduce indentation, no functionality change.
...
llvm-svn: 89600
2009-11-22 16:05:05 +00:00
88874ec60a
Remove the AliasAnalysis::getMustAliases method, which is dead.
...
The hasNoModRefInfoForCalls isn't worth it as a filter because
basicaa provides m/r info and everything chains to it, so remove
it.
llvm-svn: 89599
2009-11-22 16:01:44 +00:00
663e0a06b0
Remove dead code. While there, also turn a few 'T* ' into 'T *' to match the
...
rest of the file.
llvm-svn: 89577
2009-11-22 02:38:11 +00:00
90e9062e96
Generate more correct debug info for frame indices.
...
llvm-svn: 89576
2009-11-22 02:32:29 +00:00
abdf86d2be
Minor optimization: when doing eq/ne comparions and RHS is a constant - swap operands, this will allow us to fold imm into comparison.
...
llvm-svn: 89574
2009-11-22 01:14:08 +00:00
3a31644c7a
Drop unsupported imm operands
...
llvm-svn: 89573
2009-11-22 01:13:54 +00:00
a9c7bb724a
Use 2-byte alignment for functions. 4 bytes are clear overkill here.
...
llvm-svn: 89572
2009-11-22 01:13:39 +00:00
d099b578e4
Use semicolon as assembler comment string
...
llvm-svn: 89571
2009-11-22 01:12:49 +00:00
e09e95b35c
Revert 89562. We're being sneakier than I was giving us credit for, and this
...
isn't necessary.
llvm-svn: 89568
2009-11-21 23:34:09 +00:00
042483efb1
remove trailing whitespace
...
llvm-svn: 89567
2009-11-21 23:12:12 +00:00
43fd822249
Darwin requires a frame pointer for all non-leaf functions to support correct
...
backtraces.
llvm-svn: 89562
2009-11-21 21:40:08 +00:00
a33fc86be3
Add predicate operand to NEON instructions. Fix lots (but not all) 80 col violations in ARMInstrNEON.td.
...
llvm-svn: 89542
2009-11-21 06:21:52 +00:00
1f4062f194
Allow target to disable if-converting predicable instructions. e.g. NEON instructions under ARM mode.
...
llvm-svn: 89541
2009-11-21 06:20:26 +00:00
930143b0dc
Cosmetic changes, which were long overdue, in DwarfDebug.cpp.
...
llvm-svn: 89537
2009-11-21 02:48:08 +00:00
ed85e12da6
We are not using DBG_STOPPOINT anymore.
...
llvm-svn: 89536
2009-11-21 02:46:55 +00:00
bc630aca39
Be more clever about calculating live variables through new basic blocks.
...
When splitting a critical edge, the registers live through the edge are:
- Used in a PHI instruction, or
- Live out from the predecessor, and
- Live in to the successor.
This allows the coalescer to eliminate even more phi joins.
llvm-svn: 89530
2009-11-21 02:05:21 +00:00
0c7bd96de2
Add more optimizations for object size checking, enable handling of
...
object size intrinsic and verify return type is correct. Collect various
code in one place.
llvm-svn: 89523
2009-11-21 01:01:30 +00:00
e1bbc33355
Remove dead code.
...
llvm-svn: 89522
2009-11-21 00:54:03 +00:00
b91eba382d
When generating a vector the really slow way, via loads
...
and stores, handle the case where the element size is not
a valid target type correctly (PPC).
llvm-svn: 89521
2009-11-21 00:53:23 +00:00
92e8c655b2
There is no need to use FoldingSet to unique DIEs.
...
DIEs are created from MDNode, which are already uniqued. And DwarfDebug already uses ValueMaps to find and use existing DIE for a given MDNode.
llvm-svn: 89518
2009-11-21 00:31:03 +00:00
7dcca8f7fc
Added two SubtargetFeatures::AddFeatures methods, which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods.
...
llvm-svn: 89516
2009-11-21 00:00:02 +00:00
5305dc0be1
Restructure code to allow renaming of multiple-register groups for anti-dep breaking.
...
llvm-svn: 89511
2009-11-20 23:33:54 +00:00
73f9a9e2c8
Enable hoisting load from constant memories.
...
llvm-svn: 89510
2009-11-20 23:31:34 +00:00
312971513f
Fix a thinko that caused spurious @GOTOFFs.
...
llvm-svn: 89509
2009-11-20 23:30:32 +00:00
e14b347176
Update for new getBlockAddress signature.
...
llvm-svn: 89507
2009-11-20 23:21:00 +00:00
7a6611793f
Target-independent support for TargetFlags on BlockAddress operands,
...
and support for blockaddresses in x86-32 PIC mode.
llvm-svn: 89506
2009-11-20 23:18:13 +00:00
c1f532e930
Recommitting PALIGNR shift width fixes.
...
Thanks to Daniel Dunbar for fixing clang intrinsics:
http://llvm.org/viewvc/llvm-project?view=rev&revision=89499
llvm-svn: 89500
2009-11-20 22:28:42 +00:00
8495a506eb
Remove an incorrect overaggressive optimization
...
(PPC specific).
llvm-svn: 89496
2009-11-20 22:16:40 +00:00
19d92728d0
Reverting PALIGNR fix until I figure out how this
...
broke the Clang testsuite.
llvm-svn: 89495
2009-11-20 22:09:28 +00:00
fbed130173
Fixed PALIGNR to take 8-bit rotations in all cases.
...
Also fixed the corresponding testcase, and the PALIGNR
intrinsic (tested for correctness with llvm-gcc).
llvm-svn: 89491
2009-11-20 21:40:28 +00:00
e064ad4741
Do not hold on to a map slot while new entries may be inserted into the map.
...
Use ValueMap, instead of std::map.
llvm-svn: 89490
2009-11-20 21:37:22 +00:00
f46c37c0de
Cleanups.
...
Make things a little more efficient as suggested by Evan.
llvm-svn: 89489
2009-11-20 21:13:27 +00:00
85121a3bda
There is no need to emit source location info for DW_TAG_pointer_type.
...
llvm-svn: 89487
2009-11-20 21:05:37 +00:00
fbffe63528
Make Loop::getLoopLatch() work on loops which don't have preheaders, as
...
it may be used in contexts where preheader insertion may have failed due
to an indirectbr.
Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in
the case that it would require splitting an indirectbr edge.
These fix PR5502.
llvm-svn: 89484
2009-11-20 20:51:18 +00:00
d15302afa0
Fix IPSCCP's code for deleting dead blocks to tolerate outstanding
...
blockaddress users. This fixes PR5569.
llvm-svn: 89483
2009-11-20 20:19:14 +00:00
f87c75706f
Revert "Add some rough optimizations for checking routines.", it buildeth not.
...
llvm-svn: 89482
2009-11-20 20:17:30 +00:00
cf97d01dff
Add some rough optimizations for checking routines.
...
llvm-svn: 89479
2009-11-20 19:57:37 +00:00
bdb43a9d99
Remat VLDRD from constpool. Clean up some instruction property specifications.
...
llvm-svn: 89478
2009-11-20 19:57:15 +00:00
b39a9fd3ed
Add option -licm-const-load to hoist all loads from constant memory.
...
llvm-svn: 89477
2009-11-20 19:55:37 +00:00
6c3b71195a
The verify() call of CPEIsInRange() isn't right for the assertion check of
...
constant pool ranges, as CPEIsInRange() makes conservative assumptions about
the potential alignment changes from branch adjustments. The verification,
on the other hand, runs after those branch adjustments are made, so the
effects on alignment are known and already taken into account. The sanity
check in verify should check the range directly instead.
llvm-svn: 89473
2009-11-20 19:37:38 +00:00
ff20377740
Use stripPointerCasts(). Thanks Duncan!
...
llvm-svn: 89472
2009-11-20 19:33:16 +00:00
80a03cc0b1
Remove some old experimental code that is no longer needed. Remove additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks.
...
llvm-svn: 89471
2009-11-20 19:32:48 +00:00
b4c14ebfbb
More consistent labelling of basic blocks in debug output
...
llvm-svn: 89470
2009-11-20 18:54:59 +00:00
a8c144d534
Revert the rule that considers comparisons between two pointers in the
...
same object to be a non-capture; Duncan pointed out a way that such
a comparison could be a capture.
Make the rule that considers a comparison against null more specific,
and only consider noalias return values compared against null. This
still supports test/Transforms/GVN/nonescaping-malloc.ll, and is not
susceptible to the problem Duncan pointed out with noalias arguments.
llvm-svn: 89468
2009-11-20 17:50:21 +00:00
5551c207cd
Move the handling of CommaSeparated options into ProvideOption.
...
Makes '--comma-separated val1,val2' mean the same thing as
'--comma-separated=val1,val2' (that is, 'val1' and 'val2' are not lumped
together as 'val1,val2'). Also declutters the main loop a bit.
llvm-svn: 89463
2009-11-20 17:23:17 +00:00
9e26aac773
Fix PR5563, an expensive checks failure when running on
...
tests/Transforms/InstCombine/shufflemask-undef.ll. If
anyone cares, the use of 2*e here (and the equivalent
all over the place in instcombine) seems wrong, though
harmless: it should really be twice the length of the
input vector. I think shufflevector used to require
that the mask have the same length as the input, but I
don't think that's true any more. I don't care enough
about vectors to do anything about this...
llvm-svn: 89456
2009-11-20 13:19:51 +00:00
cc0a0cb4b7
Fix PR5558, which was caused by a wrong fix for PR3393 (see commit 63048),
...
which was an expensive checks failure due to a bug in the checking. This
patch in essence reverts the original fix for PR3393, and refixes it by a
tweak to the way expensive checking is done.
llvm-svn: 89454
2009-11-20 10:45:10 +00:00
20c8ab655e
Fix fast-isel to avoid selecting the return instruction if a
...
tail call has been encountered.
llvm-svn: 89444
2009-11-20 02:51:26 +00:00
fc81352e3f
Remove verifySizes() since it's not adding much value.
...
llvm-svn: 89443
2009-11-20 02:32:06 +00:00
bbd50b0f78
Also CSE non-pic load from constant pools.
...
llvm-svn: 89440
2009-11-20 02:10:27 +00:00
f4fe57ad90
Add an experimental option to run gep-splitting and no-load GVN
...
just before codegen.
llvm-svn: 89439
2009-11-20 02:03:44 +00:00
6d919f1613
Simplify this code; it's not necessary to check isIdentifiedObject here
...
because if the results from getUnderlyingObject match, the values must
be from the same underlying object, even if we don't know what that
object is.
llvm-svn: 89434
2009-11-20 01:34:03 +00:00
2bbeaa8774
Add MachineBasicBlock::getName, and use it in place of getBasicBlock()->getName.
...
Fix debug code that assumes getBasicBlock never returns NULL.
llvm-svn: 89428
2009-11-20 01:17:03 +00:00
62167b9516
Teach getSmallConstantTripMultiple about Shl operators.
...
llvm-svn: 89426
2009-11-20 01:09:34 +00:00
81a2851bcb
Fix codegen of conditional move of immediates. We were not making use of the immediate forms of cmov instructions at all.
...
llvm-svn: 89423
2009-11-20 00:54:03 +00:00
c6e434573c
Removed references to LiveStacks from Spiller.* . They're no longer needed.
...
llvm-svn: 89422
2009-11-20 00:53:30 +00:00
91449224e8
Refine the capture tracking rules for comparisons to be more
...
careful about crazy methods of capturing pointers using comparisons.
Comparisons of identified objects with null in the default address
space are not captures. And, comparisons of two pointers within the
same identified object are not captures.
llvm-svn: 89421
2009-11-20 00:50:47 +00:00
01956f5a6b
Use isVoidTy().
...
llvm-svn: 89419
2009-11-20 00:43:11 +00:00
a6380af658
Update comment to reflect instruction.
...
llvm-svn: 89414
2009-11-20 00:21:55 +00:00
772f922acb
Refine this to only apply to null in the default address space.
...
llvm-svn: 89411
2009-11-19 23:53:49 +00:00
34fb6838bc
Try to fix JITTest.FarCallToKnownFunction on ARM and PPC.
...
llvm-svn: 89410
2009-11-19 23:42:58 +00:00
36dd7d5f5c
Use CMAKE_DL_LIBS instead of raw library name. Fixes bug 5536.
...
Patch by Tobias Grosser!
llvm-svn: 89406
2009-11-19 23:21:43 +00:00
dd1c6198d4
Fix a couple of problems with maintaining liveness information for antidep breaking.
...
llvm-svn: 89404
2009-11-19 23:12:37 +00:00
b73918c42d
When placing constant islands and adjusting for alignment padding, inline
...
assembly can confuse things utterly, as it's assumed that instructions in
inline assembly are 4 bytes wide. For Thumb mode, that's often not true,
so the calculations for when alignment padding will be present get thrown off,
ultimately leading to out of range constant pool entry references. Making
more conservative assumptions that padding may be necessary when inline asm
is present avoids this situation.
llvm-svn: 89403
2009-11-19 23:10:28 +00:00
94e617627d
Extend CaptureTracking to indicate when a value is never stored, even
...
if it is not ultimately captured. Teach BasicAliasAnalysis that a
local object address which does not escape and is never stored does
not alias with a value resulting from a load.
llvm-svn: 89398
2009-11-19 21:57:48 +00:00
b6c7704a8d
Refactor cmov selection code out to a separate function. No functionality change.
...
llvm-svn: 89396
2009-11-19 21:45:22 +00:00
0a2ba1068e
Comparing a pointer with null is not a capture.
...
llvm-svn: 89389
2009-11-19 21:34:07 +00:00
331e6880a5
Place new basic blocks immediately after their predecessor when splitting
...
critical edges in PHIElimination.
This has a huge impact on regalloc performance, and we recover almost all of
the 10% compile time regression that edge splitting introduced.
llvm-svn: 89381
2009-11-19 19:42:16 +00:00
31c74dbb10
Reverting the EH table patches.
...
$ svn merge -c -89279 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r89279 into '.':
U lib/CodeGen/AsmPrinter/DwarfException.cpp
U lib/Target/TargetLoweringObjectFile.cpp
$ svn merge -c -89270 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r89270 into '.':
G lib/CodeGen/AsmPrinter/DwarfException.cpp
G lib/Target/TargetLoweringObjectFile.cpp
llvm-svn: 89379
2009-11-19 19:21:09 +00:00
b3b8209d77
Added NLdStLN which is similar to NLdSt with the exception that op7_4 is not
...
fully specified at this level. Subclasses of NLdStLN can specify selective
bit(s) for Inst{7-4}, as is done for VLD[234]LN* and VST[234]LN* inside
ARMInstrNEON.td.
llvm-svn: 89377
2009-11-19 19:20:17 +00:00
50909c0595
Fix a small bug.
...
Fix one case we missed to make sure we reserve registers from
allocation.
llvm-svn: 89376
2009-11-19 19:09:39 +00:00
cbc6ebb6fd
Enable hoisting of loads from constant memory by default. In cases where
...
they are lowered to instruction sequences more complex than a simple
load, such that CodeGen cannot rematerialize them, a reload from a
spill slot is likely to be cheaper than the complex sequence.
llvm-svn: 89374
2009-11-19 19:00:10 +00:00
956c1581fa
Use StringRef::min instead of std::min.
...
llvm-svn: 89372
2009-11-19 18:53:18 +00:00
36a5bf82bf
fix typo
...
llvm-svn: 89369
2009-11-19 18:23:19 +00:00
1d9f1fe7cc
Trailing whitespace.
...
llvm-svn: 89364
2009-11-19 17:29:36 +00:00
91431b008b
Fix a typo in a comment.
...
llvm-svn: 89360
2009-11-19 16:35:11 +00:00
f37756d609
Add support for spreading register allocation.
...
Add a -linearscan-skip-count argument (default to 0) that tells the
allocator to remember the last N registers it allocated and skip them
when looking for a register candidate. This tends to spread out
register usage and free up post-allocation scheduling at the cost of
slightly more register pressure. The primary benefit is the ability
to backschedule reloads.
This is turned off by default.
llvm-svn: 89356
2009-11-19 15:55:49 +00:00
3846506466
Unbreak x64 MSVC build. Patch by Nicolas Capens!
...
llvm-svn: 89341
2009-11-19 12:17:31 +00:00
ba993b8add
Add PS3 Triple class, Credit to John Thompson.
...
llvm-svn: 89339
2009-11-19 11:59:00 +00:00
82adca8373
80 col violation.
...
llvm-svn: 89337
2009-11-19 08:16:50 +00:00
b18525937c
More consistent thumb1 asm printing.
...
llvm-svn: 89328
2009-11-19 06:57:41 +00:00
2a6c92fcb6
Shrink ldr / str [sp, imm0-1024] to 16-bit instructions.
...
llvm-svn: 89326
2009-11-19 06:32:27 +00:00
547abae38d
Eliminate more * 4 in Thumb1 asm printing for consistency sake.
...
llvm-svn: 89325
2009-11-19 06:31:26 +00:00
4713b282ce
- Add sugregister logic to handle f64=(f32,f32).
...
- Support mips1 like load/store of doubles:
Instead of:
sdc $f0, X($3)
Generate:
swc $f0, X($3)
swc $f1, X+4($3)
llvm-svn: 89322
2009-11-19 06:06:13 +00:00
8bd87239d7
Only use small sections for non linux targets!
...
llvm-svn: 89316
2009-11-19 05:28:18 +00:00
6912be4ad6
Added a new Spiller implementation which wraps LiveIntervals::addIntervalsForSpills.
...
All spiller calls in RegAllocLinearScan now go through the new Spiller interface.
The "-new-spill-framework" command line option has been removed. To use the trivial in-place spiller you should now pass "-spiller=trivial -rewriter=trivial".
(Note the trivial spiller/rewriter are only meant to serve as examples of the new in-place modification work. Enabling them will yield terrible, though hopefully functional, code).
llvm-svn: 89311
2009-11-19 04:15:33 +00:00
50d67e791b
Teach IVUsers to keep things simpler and track loop-invariant strides only
...
for uses inside the loop. This works better with LSR. Disabled behind
-simplify-iv-users while benchmarking.
llvm-svn: 89299
2009-11-19 02:05:44 +00:00
dcef55b2ef
Eliminate duplicate phi nodes in loops. Loop rotation, for example, can introduce these, and it's beneficial to later passes to clean them up.
...
llvm-svn: 89298
2009-11-19 02:03:18 +00:00
cc69a1ba9a
Make EliminateDuplicatePHINodes() available as a utility function
...
llvm-svn: 89297
2009-11-19 02:02:10 +00:00
4b384b0294
The "ReadOnlyWithRel" enum seems to apply more to what Darwin does with the EH
...
exception table than DataRel.
llvm-svn: 89279
2009-11-19 00:09:14 +00:00
b3c5aa20ea
There should be no need to keep renumbering blocks during tail duplication.
...
llvm-svn: 89275
2009-11-18 23:48:57 +00:00
3bd09434a6
Add XCore support for indirectbr / blockaddress.
...
llvm-svn: 89273
2009-11-18 23:20:42 +00:00
07e6e2c6f8
Attempt #2 :
...
Place the EH table in the __TEXT section on MachO. It saves space.
llvm-svn: 89270
2009-11-18 23:18:46 +00:00
108aadf972
Tail duplication still needs to iterate. Duplicating new instructions onto
...
the tail of a block may make that block a new candidate for duplication.
llvm-svn: 89264
2009-11-18 22:52:37 +00:00
5d87f7d5f8
Add another statistic to measure code size due to tail duplication.
...
llvm-svn: 89254
2009-11-18 22:12:31 +00:00
575c3f3d72
Fix PR5300.
...
When TwoAddressInstructionPass deletes a dead instruction, make sure that all
register kills are accounted for. The 2-addr register does not get special
treatment.
llvm-svn: 89246
2009-11-18 21:33:35 +00:00
9cbffd2155
Allow the machine verifier to be run outside the PassManager.
...
Verify LiveVariables information when present.
llvm-svn: 89241
2009-11-18 20:36:57 +00:00
520039fcb6
Remove the -early-coalescing option
...
llvm-svn: 89240
2009-11-18 20:36:47 +00:00
e9e0cd4e27
Fixed the in-place spiller and trivial rewriter, which had been broken by the recent SlotIndexes work.
...
llvm-svn: 89238
2009-11-18 20:31:20 +00:00
c3e2b6bcf5
Added getDefaultSubtargetFeatures method to SubtargetFeatures class which returns a correct feature string for given triple.
...
llvm-svn: 89236
2009-11-18 20:20:05 +00:00
8984e6ec8c
Add statistics for tail duplication.
...
llvm-svn: 89225
2009-11-18 19:29:37 +00:00
1fd5fdaa7b
Add ARMv6 itineraries.
...
llvm-svn: 89218
2009-11-18 18:39:57 +00:00
9dea05d724
Fix a few places that were missed when we converted to unified syntax.
...
llvm-svn: 89214
2009-11-18 18:10:35 +00:00
736888f7fa
Don't require LiveVariables for PHIElimination. Enable critical edge splitting
...
when LiveVariables is available.
The -split-phi-edges is now gone, and so is the hack to disable it when using
the local register allocator. The PHIElimination pass no longer has
LiveVariables as a prerequisite - that is what broke the local allocator.
Instead we do critical edge splitting when possible - that is when
LiveVariables is available.
llvm-svn: 89213
2009-11-18 18:01:35 +00:00
41ee792832
Fix passing of float arguments through ffi.
...
llvm-svn: 89198
2009-11-18 05:43:15 +00:00
290e9a47a9
Add a target hook to allow changing the tail duplication limit based on the
...
contents of the block to be duplicated. Use this for ARM Cortex A8/9 to
be more aggressive tail duplicating indirect branches, since it makes it
much more likely that they will be predicted in the branch target buffer.
Testcase coming soon.
llvm-svn: 89187
2009-11-18 03:34:27 +00:00
dfd8daaf61
The llvm-gcc front-end and the pass manager use two separate TargetData objects.
...
This is probably not confined to *just* these two things.
Anyway, the llvm-gcc front-end may look up the structure layout information for
an abstract type. That information will be stored into a table with the FE's
TD. Instruction combine can come along and also ask for information on that
abstract type, but for a separate TD (the one associated with the pass manager).
After the type is refined, the old structure layout information in the pass
manager's TD file is out of date. If a new type is allocated in the same space
as the old-unrefined type, then the structure type information in the pass
manager's TD file will be wrong, but won't know it.
Fix this by making the TD's structure type information an abstract type user.
llvm-svn: 89176
2009-11-18 01:03:56 +00:00
6a976bbcb7
Simplify ComputeMultiple so that it doesn't depend on TargetData.
...
llvm-svn: 89175
2009-11-18 00:58:27 +00:00
4797e58d6b
Fix inverted test and add testcase from failing self-host.
...
llvm-svn: 89167
2009-11-18 00:02:18 +00:00
ee07075010
Remove dead code.
...
llvm-svn: 89156
2009-11-17 22:39:08 +00:00
700d08e18d
Add ability to set code model within the execution engine builders
...
and creation interfaces.
llvm-svn: 89151
2009-11-17 21:58:16 +00:00
6bf5305f5d
grammar
...
llvm-svn: 89145
2009-11-17 21:37:04 +00:00
cdde77c6a3
Enable arm jumpt table adjustment.
...
llvm-svn: 89143
2009-11-17 21:24:11 +00:00
31e24b2d0c
Disable -split-phi-edges to unbreak the buildbots
...
llvm-svn: 89142
2009-11-17 21:23:49 +00:00
f992022e54
Never call UpdateTerminator() when AnalyzeBranch would fail.
...
llvm-svn: 89139
2009-11-17 20:46:00 +00:00
f24804413d
Both Darwin as and GNU as violate ARM docs wrt printing of addrmode6
...
alignment imm (in the same way). Fix asmprinting for non-darwin platforms.
llvm-svn: 89137
2009-11-17 20:04:59 +00:00
57be2f2c40
Add a WriteAsOperand for MachineBasicBlock so MachineLoopInfo dump looks sane.
...
llvm-svn: 89130
2009-11-17 19:19:59 +00:00
0229536301
Fix comment.
...
llvm-svn: 89129
2009-11-17 19:19:01 +00:00
fffff88a3c
Enable -split-phi-edges by default, except when -regalloc=local.
...
The local register allocator doesn't like it when LiveVariables is run.
We should also disable edge splitting under -O0, but that has to wait a bit.
llvm-svn: 89125
2009-11-17 19:15:50 +00:00
e4e018ae67
80-column violations
...
llvm-svn: 89123
2009-11-17 19:05:35 +00:00
dafdd883bc
Added getArchNameForAssembler method to the Triple class for which returns OS and Vendor independent target assembler arch.
...
llvm-svn: 89122
2009-11-17 18:48:27 +00:00
eeac7ce769
Remove a special case for tail merging that seems to be both broken and
...
unnecessary. It is broken because the "isIdenticalTo" check should be
negated. If that is fixed, this code causes the CodeGen/X86/tail-opts.ll
test to fail, in the dont_merge_oddly function. And, I confirmed that the
regression is real -- the generated code is worse. As far as I can tell,
that tail-opts.ll test is checking for what this code is supposed to handle
and we're doing the right thing anyway.
llvm-svn: 89121
2009-11-17 18:30:09 +00:00
ba4e5da727
Generalize OptimizeLoopTermCond to optimize more loop terminating icmp to use postinc iv.
...
llvm-svn: 89116
2009-11-17 18:10:11 +00:00
2650723d81
Set MadeChange instead of MadeChangeThisIteration.
...
llvm-svn: 89114
2009-11-17 18:04:15 +00:00
713fd3564a
Revert CPU detection code to return "generic" instead of an empty string in case
...
of failure. The x86 target didn't like empty cpu names and broke x86 tests on
non-x86 buildbots.
llvm-svn: 89111
2009-11-17 17:57:04 +00:00
60f4854c76
Remove trailing whitespace
...
llvm-svn: 89110
2009-11-17 17:53:56 +00:00
724d8a45c1
Update a comment, now that tail duplication happens after other branch
...
folding optimizations.
llvm-svn: 89109
2009-11-17 17:40:31 +00:00
14b25eb87b
Set Inst{15-12} (Rd/Rt) to 0b1111 (PC) for BR_JTadd, BR_JTr, and BR_JTm to
...
distinguish between them and the more generic instructions (add, mov, and ldr).
llvm-svn: 89108
2009-11-17 17:17:50 +00:00
bd22f1965d
Perform tail duplication only once, after tail merging is complete.
...
It was too difficult to keep the heuristics for merging and duplication
consistent.
llvm-svn: 89105
2009-11-17 17:06:18 +00:00
84efacfaad
Revert 89021. It's miscompiling llvm-gcc driver driver at -O0.
...
llvm-svn: 89082
2009-11-17 09:55:52 +00:00
5392cc9d14
Re-apply 89011. It's not to be blamed.
...
llvm-svn: 89081
2009-11-17 09:51:18 +00:00
05938e819b
Revert 89011. Buildbot thinks it might be breaking stuff.
...
llvm-svn: 89076
2009-11-17 09:20:28 +00:00
a1c09d674e
Remove VISIBILITY_HIDDEN from the classes in this directory. Fixes bug 5507.
...
llvm-svn: 89075
2009-11-17 09:17:08 +00:00
b7993d61f2
Revert r88939.
...
llvm-svn: 89066
2009-11-17 08:11:44 +00:00
7efd07fd9d
Fail less mysteriously; inform the user that their LLVM was not built with
...
libffi support and that the interpreter can't call external functions without
it. Patch by Timo Juhani Lindfors! Fixes PR5466.
llvm-svn: 89062
2009-11-17 07:52:09 +00:00
759d72dc8e
Fix a race condition in the Timer class.
...
llvm-svn: 89056
2009-11-17 07:06:10 +00:00
bc0020174b
Refactor the code that creates the "dot-label" difference. This may be used in
...
more than one place. No intended functionality change.
llvm-svn: 89024
2009-11-17 01:23:53 +00:00
af1ad30a23
When moving a block for table jumps, make sure the prior block terminator
...
is analyzable so it can be updated. If it's not, be safe and don't move the
block.
llvm-svn: 89022
2009-11-17 01:21:04 +00:00
9f0d55d8d8
Enable -split-phi-edges by default
...
llvm-svn: 89021
2009-11-17 01:07:22 +00:00
d33400e636
MOV64rm should be marked isReMaterializable.
...
llvm-svn: 89019
2009-11-17 00:55:55 +00:00
82e80019a5
Remove the optimizations that convert BRCOND and BR_CC into
...
unconditional branches or fallthroghes. Instcombine/SimplifyCFG
should be simplifying branches with known conditions.
This fixes some problems caused by these transformations not
updating the MachineBasicBlock CFG.
llvm-svn: 89017
2009-11-17 00:47:23 +00:00
12144a2348
Remove debug info attached with an instruction.
...
llvm-svn: 89016
2009-11-17 00:47:06 +00:00
7c57c41d5f
In GlobalVariable::setInitializer, assert that the initializer has the
...
right type.
llvm-svn: 89014
2009-11-17 00:43:13 +00:00
ce28f6f478
A few more instructions that should be marked re-materializable.
...
llvm-svn: 89011
2009-11-17 00:23:22 +00:00
18183b6d8e
Set Rm bits of BX_RET to 0b1110 (R14); and set condition code bits of BRIND to
...
0b1110 (ALways). This is so that the disassembler decoder can distinguish among
BX_RET, BRIND, and BXr9.
llvm-svn: 89000
2009-11-16 23:57:56 +00:00
9b5eea30f7
Initialize the new AsmPrinterFlags field to 0, fixing uses of
...
uninitialized memory.
llvm-svn: 88985
2009-11-16 22:49:38 +00:00
10d3604a9e
Make X86-64 in the Large model always emit 64-bit calls.
...
The large code model is documented at
http://www.x86-64.org/documentation/abi.pdf and says that calls should
assume their target doesn't live within the 32-bit pc-relative offset
that fits in the call instruction.
To do this, we turn off the global-address->target-global-address
conversion in X86TargetLowering::LowerCall(). The first attempt at
this broke the lazy JIT because it can separate the movabs(imm->reg)
from the actual call instruction. The lazy JIT receives the address of
the movabs as a relocation and needs to record the return address from
the call; and then when that call happens, it needs to patch the
movabs with the newly-compiled target. We could thread the call
instruction into the relocation and record the movabs<->call mapping
explicitly, but that seems to require at least as much new
complication in the code generator as this change.
To fix this, we make lazy functions _always_ go through a call
stub. You'd think we'd only have to force lazy calls through a stub on
difficult platforms, but that turns out to break indirect calls
through a function pointer. The right fix for that is to distinguish
between calls and address-of operations on uncompiled functions, but
that's complex enough to leave for someone else to do.
Another attempt at this defined a new CALL64i pseudo-instruction,
which expanded to a 2-instruction sequence in the assembly output and
was special-cased in the X86CodeEmitter's emitInstruction()
function. That broke indirect calls in the same way as above.
This patch also removes a hack forcing Darwin to the small code model.
Without far-call-stubs, the small code model requires things of the
JITMemoryManager that the DefaultJITMemoryManager can't provide.
Thanks to echristo for lots of testing!
llvm-svn: 88984
2009-11-16 22:41:33 +00:00
f25ef4ffb0
- Check memoperand alignment instead of checking stack alignment. Most load / store folding instructions are not referencing spill stack slots.
...
- Mark MOVUPSrm re-materializable.
llvm-svn: 88974
2009-11-16 21:56:03 +00:00
f3d7c08e34
Revert r88939.
...
llvm-svn: 88973
2009-11-16 21:53:40 +00:00
a3ce7828b2
Fix an expensive-checks error.
...
The Mask and LHSMask may not be of the same size, so don't do the
transformation if they're different.
llvm-svn: 88972
2009-11-16 21:52:23 +00:00
56ee15c162
Make the pass class name more explicit.
...
llvm-svn: 88964
2009-11-16 21:13:22 +00:00
544b15cbc3
make pass name a bit more clear
...
llvm-svn: 88961
2009-11-16 21:03:58 +00:00
93f529d514
Sink a #include <map> to where it's actually needed.
...
llvm-svn: 88956
2009-11-16 20:40:47 +00:00
6b3f32e6d7
Fix a typo in a comment.
...
llvm-svn: 88953
2009-11-16 20:35:59 +00:00
44724c4122
Fix a comment.
...
llvm-svn: 88940
2009-11-16 19:33:27 +00:00
2ffd9935a1
Add VISIBILITY_HIDDEN marker.
...
llvm-svn: 88939
2009-11-16 19:20:48 +00:00
9785e5914f
Simplify thumb2 jump table adjustments. Remove unnecessary calculation and
...
usage of block sizes and offsets.
llvm-svn: 88935
2009-11-16 18:58:52 +00:00
87b0f0d95c
clarify comment
...
llvm-svn: 88933
2009-11-16 18:55:47 +00:00
1a8ea98b76
Fix some comments.
...
llvm-svn: 88932
2009-11-16 18:54:08 +00:00
3794ec2519
Whitespace: be consistent with pointer syntax.
...
llvm-svn: 88929
2009-11-16 18:08:46 +00:00
699f5b9a0a
Clean up whitespace.
...
llvm-svn: 88927
2009-11-16 17:56:13 +00:00
9c148c2163
back off for a bit. tracking down weirdness
...
llvm-svn: 88919
2009-11-16 17:17:48 +00:00
47d5e333ff
Analyze has to be before checking the condition, obviously. Properly construct an iterator for prior.
...
llvm-svn: 88917
2009-11-16 17:10:56 +00:00
25905c8336
Support spill comments.
...
Have the asm printer emit a comment if an instruction is a spill or
reload and have the spiller mark copies it introdues so the asm printer
can also annotate those.
llvm-svn: 88911
2009-11-16 15:12:23 +00:00
9649e6085d
BuildIntCast takes an additional parameter, isSigned.
...
llvm-svn: 88910
2009-11-16 13:15:28 +00:00
e5de4a9ad6
CreateIntCast takes an "isSigned" parameter. Pass "true" for it, rather than
...
a name.
llvm-svn: 88908
2009-11-16 12:32:28 +00:00
00e87d19f5
Special case FixedStackPseudoSourceValueVal as well. Do we really need to differentiate PseudoSourceValueVal from FixedStackPseudoSourceValueVal at this level?
...
llvm-svn: 88902
2009-11-16 07:10:36 +00:00
597f7b6ee3
Check if subreg index is zero.
...
llvm-svn: 88899
2009-11-16 06:31:49 +00:00
11bf4493d4
For some targets, a copy can use a register multiple times, e.g. ppc.
...
llvm-svn: 88895
2009-11-16 05:52:06 +00:00
5bf807688e
Disable ldc1/sdc1 instructions for mips1 targets.
...
llvm-svn: 88887
2009-11-16 04:35:29 +00:00
537e409c58
- Fix a small bug while handling target constant pools (one param was missing).
...
- Add a smarter constant pool loading, instead of:
lui $2, %hi($CPI1_0)
addiu $2, $2, %lo($CPI1_0)
lwc1 $f0, 0($2)
Generate:
lui $2, %hi($CPI1_0)
lwc1 $f0, %lo($CPI1_0)($2)
llvm-svn: 88886
2009-11-16 04:33:42 +00:00
e58c05780e
typo spotted by duncan.
...
llvm-svn: 88884
2009-11-16 03:51:42 +00:00
01f31c0a48
Fixes the bug exposed by Anton's test case in PR 5495:
...
Make sure when ProcessImplicitDefs removes a copy which kills its source reg that it
removes the copy from said reg's Kills list.
llvm-svn: 88881
2009-11-16 02:07:31 +00:00
968bd90f88
Fix for the original bug in PR5495 - Look at uses as well as defs when determining the PHI-copy insert point.
...
- Patch by Andrew Canis!
llvm-svn: 88880
2009-11-16 02:00:09 +00:00
01c1cae34d
Detect need for autoalignment of the stack earlier to catch spills more
...
conservatively. eliminateFrameIndex() machinery adjust to handle addr mode
6 (vld1/vst1) used for spills. Fix tests to expect aligned Q-reg spilling
llvm-svn: 88874
2009-11-15 21:45:34 +00:00
74ae3e5b0e
set the def of the VLD1q64 properly
...
llvm-svn: 88873
2009-11-15 21:05:07 +00:00
7735878591
teach LVI to infer edge information from switch instructions.
...
This allows JT to eliminate a ton of infeasible edges when
handling code like the templates in PatternMatch.h
llvm-svn: 88869
2009-11-15 20:02:12 +00:00
b0c0a0df3e
fix a logic error that would cause LVI-JT to miscompile
...
some conditionals
llvm-svn: 88868
2009-11-15 20:01:24 +00:00
2c708562f5
implement the first stab at caching queries. This isn't correct
...
(because the invalidation logic is missing) but LVI isn't enabled
by default anyway.
llvm-svn: 88867
2009-11-15 20:00:52 +00:00
af025d3f6e
refactor a bunch of code forming the new LazyValueInfoCache
...
and LVIQuery classes, no functionality change.
llvm-svn: 88866
2009-11-15 19:59:49 +00:00
9d9812a636
make PRE of loads preserve the alignment of the moved load instruction.
...
llvm-svn: 88865
2009-11-15 19:58:31 +00:00
5f037b6439
fix a bug handling 'not x' when x is undef.
...
llvm-svn: 88864
2009-11-15 19:57:43 +00:00
ef4ea9a2a9
Add a complex missed optimization opportunity I came across while investigating
...
bug 5438.
llvm-svn: 88855
2009-11-15 17:51:23 +00:00
e3f3ca70e6
Add PSP OS Target to Triple, Credit to Bruno Cardoso Lopes.
...
llvm-svn: 88849
2009-11-15 10:18:17 +00:00
95148689c9
Revert r88830 and r88831 which appear to have caused a selfhost buildbot some
...
grief. I suspect this patch merely exposed a bug else.
llvm-svn: 88841
2009-11-15 07:47:32 +00:00
e29fa4c7a1
Teach instcombine to look for booleans in wider integers when it encounters a
...
zext(icmp). It may be able to optimize that away. This fixes one of the cases
in PR5438.
llvm-svn: 88830
2009-11-15 05:55:17 +00:00
6da915ac86
Added an assert to the PBQP allocator to catch infinite cost solutions which might otherwise lead to miscompilations.
...
llvm-svn: 88829
2009-11-15 04:39:51 +00:00
18f845fccd
Remove bogus corei7 and atom entries, the family was incorrect.
...
llvm-svn: 88818
2009-11-14 22:04:42 +00:00
397235f11c
Fill out X86 table, although we are missing lots of names for things. We now
...
properly detect my Xeon box though.
llvm-svn: 88814
2009-11-14 21:36:19 +00:00
d90a9a04f3
Report the detected host CPU in --version.
...
llvm-svn: 88813
2009-11-14 21:36:07 +00:00
e07594df45
cleanup.
...
llvm-svn: 88812
2009-11-14 21:33:37 +00:00
ae84426ed8
Do not merge jump tables this early. Branch folding will do any necessary
...
merges, and until then, it's useful to keep the tables separate for ease
of manipulation.
llvm-svn: 88806
2009-11-14 20:15:03 +00:00
43d2108546
Cleanup flow, and only update the jump table we're analyzing when replacing a destination MBB.
...
llvm-svn: 88805
2009-11-14 20:10:18 +00:00
9c8609ea1c
Add function to replace a destination MBB in a single jump table
...
llvm-svn: 88804
2009-11-14 20:09:13 +00:00
d5f2745965
Add XCore support for arbitrary-sized aggregate returns.
...
llvm-svn: 88802
2009-11-14 19:33:35 +00:00
fd0c7bae2a
Temporary disable the error - it seems to be too conservative.
...
llvm-svn: 88800
2009-11-14 18:01:41 +00:00
8c19a8f17b
Implement DISABLE_INLINE for MSVC. This required changing the position in all
...
forward declaration and patching tblgen to emit it right. Patch by Amine Khaldi!
llvm-svn: 88798
2009-11-14 16:37:18 +00:00
241d01b590
Add llvm::sys::getHostCPUName, for detecting the LLVM name for the host CPU.
...
- This is an initial step towards -march=native support in Clang, and towards
eliminating host dependencies in the targets. See PR5389.
- Patch by Roman Divacky!
llvm-svn: 88768
2009-11-14 10:09:12 +00:00
7935bcb0fe
Remove LLVMContext from reassociate. It was threaded through every function but
...
ultimately never used.
llvm-svn: 88763
2009-11-14 07:25:54 +00:00
d03742a122
revert 88761 as it fails builds.
...
llvm-svn: 88762
2009-11-14 07:22:25 +00:00
8f9c22646b
Fix debug info crashes for PIC16.
...
llvm-svn: 88761
2009-11-14 06:19:49 +00:00
c53e2ecf02
Teach BasicAA that a constant expression can't alias memory provably not
...
allocated until runtime (such as an alloca). Patch by Hans Wennborg!
llvm-svn: 88760
2009-11-14 06:15:14 +00:00
16797a1f55
Added getSubRegIndex(A,B) that returns subreg index of A to B. Use it to replace broken code in VirtRegRewriter.
...
llvm-svn: 88753
2009-11-14 03:42:17 +00:00
6ad7da96fe
- Change TargetInstrInfo::reMaterialize to pass in TargetRegisterInfo.
...
- If destination is a physical register and it has a subreg index, use the
sub-register instead.
This fixes PR5423.
llvm-svn: 88745
2009-11-14 02:55:43 +00:00
81132465d3
Add an option for running GVN with redundant load processing disabled.
...
llvm-svn: 88742
2009-11-14 02:27:51 +00:00
d2c10508cd
Fix PR5412: Fix an inverted check and another missing sub-register check.
...
llvm-svn: 88738
2009-11-14 02:09:09 +00:00
a627e26d39
Enable the tail call optimization when the caller returns undef.
...
llvm-svn: 88737
2009-11-14 02:06:30 +00:00
66401c90da
When expanding t2STRDi8 r, r to two stores, add kill markers correctly.
...
llvm-svn: 88734
2009-11-14 01:50:00 +00:00
24b027401e
Fix bug in -split-phi-edges.
...
When splitting an edge after a machine basic block with fall-through, we
forgot to insert a jump instruction. Fix this by calling updateTerminator() on
the fall-through block when relevant.
Also be more precise in PHIElimination::isLiveIn.
llvm-svn: 88728
2009-11-14 00:38:13 +00:00
15ca009ee7
Update MachineDominator information
...
llvm-svn: 88727
2009-11-14 00:38:06 +00:00
6b7233afc6
Added an API to the SlotIndexes pass to allow new instructions to be inserted into the numbering.
...
PreAllocSplitting is now using this API to insert code.
llvm-svn: 88725
2009-11-14 00:02:51 +00:00
78fa302e7d
Fix PR5411. Bug in UpdateKills. A reg def partially define its super-registers.
...
llvm-svn: 88719
2009-11-13 23:16:41 +00:00
96b26acd0f
Remove extraneous commit.
...
llvm-svn: 88716
2009-11-13 23:08:47 +00:00
0cabd30b22
Print out something, even if it's non-parseable later when we've
...
got ghost linkage. It's better than aborting.
llvm-svn: 88715
2009-11-13 23:00:14 +00:00
ad205d6102
Fix PHIElimination optimization that uses MBB->getBasicBlock.
...
The BasicBlock associated with a MachineBasicBlock does not necessarily
correspond to the code in the MBB.
Don't insert a new IR BasicBlock when splitting critical edges. We are not
supposed to modify the IR during codegen, and we should be able to do just
fine with a NULL BB.
llvm-svn: 88707
2009-11-13 21:56:15 +00:00
Victor Hernandez