8b981c2564
The code instrumented with ASan may have its own instance of the
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mach_override library.
In this case chances are that functions from it will be called from
mach_override_ptr() during ASan initialization.
This may lead to crashes (if those functions are instrumented) or
incorrect behavior (if the implementations differ).
The attached patch renames mach_override_ptr() into
__asan_mach_override_ptr() and makes the rest of the mach_override
internals hidden.
The corresponding AddressSanitizer bug is
http://code.google.com/p/address-sanitizer/issues/detail?id=22
Patch by glider@google.com
llvm-svn: 147303
2011-12-28 01:08:14 +00:00
46c70d33d7
[asan] make sure __asan_report_* functions are not inlined (so that they are not optimized away and are kept in the resulting library). Patch by glider@google.com
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llvm-svn: 147302
2011-12-28 00:59:39 +00:00
5469986da0
[asan] remove the test for cfree. 'man cfree' says: 'This function should never be used.' and this function is not found on many OSes we support.
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llvm-svn: 147301
2011-12-27 23:42:55 +00:00
dd1386f882
new() has slightly different signature on Android. This patch adds the
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llvm-svn: 147300
2011-12-27 23:11:09 +00:00
deafd0b2a4
Eliminate ObjCClassDecl, which is redundant now that ObjCInterfaceDecl
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covers both declarations (@class ) and definitions (@interface) of an
Objective-C class.
llvm-svn: 147299
2011-12-27 22:43:10 +00:00
45146a12cf
Fix memory leak in converting weak_ptr to shared_ptr
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llvm-svn: 147298
2011-12-27 22:20:51 +00:00
db32f967b9
[asan] rely on __has_feature(address_sanitizer) instead of the ADDRESS_SANITIZER macro
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llvm-svn: 147297
2011-12-27 21:57:12 +00:00
079354692d
PR11642 has been fixed, enable -fvisibility-inlines-hidden everywhere.
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llvm-svn: 147296
2011-12-27 21:37:11 +00:00
0b79046c5c
Fix the visibility of methods of explicit template instantiation definition
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when using -fvisibility-inlines-hidden. This matches gcc's behavior and
documentation.
Fixes PR11642.
llvm-svn: 147295
2011-12-27 21:15:28 +00:00
46236ee5cf
Switch StringMap from an array of structures to a structure of arrays.
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- -25% memory usage of the main table on x86_64 (was wasted in struct padding).
- no significant performance change.
llvm-svn: 147294
2011-12-27 20:35:07 +00:00
1b82c281f3
[asan] make sure frame pointers are not omitted when running asan output tests
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llvm-svn: 147293
2011-12-27 19:52:54 +00:00
398255e70c
Use false not zero, as a bool.
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llvm-svn: 147292
2011-12-27 18:27:22 +00:00
a8e84fb56b
Turn cos(-x) into cos(x). Patch by Alexander Malyshev!
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llvm-svn: 147291
2011-12-27 18:25:50 +00:00
6e52514c5d
constexpr: support for evaluation and codegen of typeid constants.
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llvm-svn: 147290
2011-12-27 12:18:28 +00:00
b668401b2e
Clean up some Release build warnings.
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llvm-svn: 147289
2011-12-27 11:41:05 +00:00
c2c47f90a0
Initialize member that ends up in PCH files.
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llvm-svn: 147288
2011-12-27 11:15:04 +00:00
df34d152bd
Add handling of x86_avx2_pmovmskb to computeMaskedBitsForTargetNode for consistency. Add comments and an assert for BMI instructions to PerformXorCombine since the enabling of the combine is conditional on it, but the function itself isn't.
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llvm-svn: 147287
2011-12-27 06:27:23 +00:00
c554a9b58e
Teach simplifycfg to recompute branch weights when merging some branches, and
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to discard weights when appropriate. Still more to do (and a new TODO), but
it's a start!
llvm-svn: 147286
2011-12-27 04:31:52 +00:00
4c131387c3
Using Inst->setMetadata(..., NULL) should be safe to remove metadata even when
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there is non of that type to remove. This fixes a crasher in the particular
case where the instruction has metadata but no metadata storage in the context
(this is only possible if the instruction has !dbg but no other metadata info).
llvm-svn: 147285
2011-12-27 01:17:40 +00:00
2b14b80b60
Fix warning.
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llvm-svn: 147284
2011-12-26 23:12:42 +00:00
e96286cdf2
Make sure DAGCombiner doesn't introduce multiple loads from the same memory location. PR10747, part 2.
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llvm-svn: 147283
2011-12-26 22:49:32 +00:00
2b081c2c9e
Partially revert r147195; lib/Basic/Version.cpp conditionally depends on config.h.
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llvm-svn: 147282
2011-12-26 22:43:17 +00:00
cde2c8f7d2
Delay checking of typedefs of dependent types. Fixes PR11630.
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llvm-svn: 147281
2011-12-26 22:42:47 +00:00
8d302df4a4
Update the branch weight metadata when reversing the order of a branch.
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llvm-svn: 147280
2011-12-26 20:54:14 +00:00
e87d54c817
Sort includes, canonicalize whitespace, fix typos. No functionality change.
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llvm-svn: 147279
2011-12-26 20:37:40 +00:00
68207c0b26
driver: fix unused variable warning
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from r147218.
llvm-svn: 147278
2011-12-26 19:29:47 +00:00
eed4f2a6c5
Fix potential use after free.
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llvm-svn: 147277
2011-12-26 14:18:37 +00:00
9a3f299f0e
clang/lib/Headers/CMakeLists.txt: Unbreak cmake build to add bmi2intrin.h since r147275.
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llvm-svn: 147276
2011-12-26 03:20:06 +00:00
c334dd68a7
Add BMI2 intrinsics.
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llvm-svn: 147275
2011-12-26 02:31:10 +00:00
4c4d254f61
Update the LangRef documentation: the codegen does support this instruction.
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llvm-svn: 147274
2011-12-25 21:32:35 +00:00
f0215fe898
Fix constexpr handling to allow 'extern constexpr' variable declarations. We no
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longer have access to the source locations we need to produce the
'replace constexpr with const' fixits, so they're gone for now.
llvm-svn: 147273
2011-12-25 21:17:58 +00:00
c1faeac410
Fix a typo in the widening of vectors in PromoteIntRes. Patch by Shemer Anat.
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llvm-svn: 147272
2011-12-25 20:01:38 +00:00
771c4a1775
constexpr: perform zero-initialization prior to / instead of performing a
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constructor call when appropriate. Thanks to Eli for spotting this.
llvm-svn: 147271
2011-12-25 20:00:17 +00:00
1fc8263b4d
Sparc: Implement emitFrameIndexDebugValue and getDebugValue Location hooks.
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llvm-svn: 147269
2011-12-25 18:50:24 +00:00
03348d09e3
Change LZCNT and BMI tests to check IR instead of X86 assembly.
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llvm-svn: 147267
2011-12-25 15:20:31 +00:00
dceeeb8918
lib/Headers/CMakeLists.txt: Fix cmake build since r147263, for two missing headers.
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llvm-svn: 147266
2011-12-25 12:47:46 +00:00
a06d4a1c40
Add the rest of the BMI intrinsics.
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llvm-svn: 147265
2011-12-25 07:27:12 +00:00
2990ec6e92
Add braces to remove silly warning.
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llvm-svn: 147264
2011-12-25 06:56:22 +00:00
f2855ade2b
Add intrinsics for lzcnt and tzcnt instructions.
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llvm-svn: 147263
2011-12-25 06:25:37 +00:00
22967d4a61
Add BMI, BMI2, and LZCNT feature flags to enable adding intrinsics.
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llvm-svn: 147262
2011-12-25 05:06:45 +00:00
2d3dac3e87
Remove unused variables.
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llvm-svn: 147261
2011-12-25 01:20:19 +00:00
65e025cad5
Remove unused variables.
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llvm-svn: 147260
2011-12-25 01:18:52 +00:00
8b7e71ffd6
Add an explicit test that we now fold cttz.i32(..., true) >> 5 -> 0.
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This is a result of Benjamin's work on ValueTracking.
llvm-svn: 147259
2011-12-24 22:34:15 +00:00
966c1fb0c8
Always implicitly declare move assignment operations for dynamic classes, in
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case they override virtual functions from a base class. Also fix -print-stats
counting of move assignment/construction.
llvm-svn: 147258
2011-12-24 21:56:24 +00:00
b16bd77bd2
InstCombine: Add a combine that turns (2^n)-1 ^ x back into (2^n)-1 - x iff x is smaller than 2^n and it fuses with a following add.
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This was intended to undo the sub canonicalization in cases where it's not profitable, but it also
finds some cases on it's own.
llvm-svn: 147256
2011-12-24 17:31:53 +00:00
4ee5747fdd
ComputeMaskedBits: Make knownzero computation more aggressive for ctlz with undef zero.
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unsigned foo(unsigned x) { return 31 - __builtin_clz(x); }
now compiles into a single "bsrl" instruction on x86.
llvm-svn: 147255
2011-12-24 17:31:46 +00:00
010337c838
InstCombine: Canonicalize (2^n)-1 - x into (2^n)-1 ^ x iff x is known to be smaller than 2^n.
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This has the obvious advantage of being commutable and is always a win on x86 because
const - x wastes a register there. On less weird architectures this may lead to
a regression because other arithmetic doesn't fuse with it anymore. I'll address that
problem in a followup.
llvm-svn: 147254
2011-12-24 17:31:38 +00:00
175543ac78
Add last of the AVX2 intrinsics except for gather.
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llvm-svn: 147253
2011-12-24 17:20:15 +00:00
a56ab0ede7
Section relative fixups are a coff concept, not a x86 one. Replace the
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x86 specific reloc_coff_secrel32 with a generic FK_SecRel_4.
llvm-svn: 147252
2011-12-24 14:47:52 +00:00
a3d54fe0ae
Use standard promotion for i8 CTTZ nodes and i8 CTLZ nodes when the
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LZCNT instructions are available. Force promotion to i32 to get
a smaller encoding since the fix-ups necessary are just as complex for
either promoted type
We can't do standard promotion for CTLZ when lowering through BSR
because it results in poor code surrounding the 'xor' at the end of this
instruction. Essentially, if we promote the entire CTLZ node to i32, we
end up doing the xor on a 32-bit CTLZ implementation, and then
subtracting appropriately to get back to an i8 value. Instead, our
custom logic just uses the knowledge of the incoming size to compute
a perfect xor. I'd love to know of a way to fix this, but so far I'm
drawing a blank. I suspect the legalizer could be more clever and/or it
could collude with the DAG combiner, but how... ;]
llvm-svn: 147251
2011-12-24 12:12:34 +00:00
Kostya Serebryany