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llvm-project/llvm/lib/Transforms/Utils
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Sanjay Patel 4b96935bd7 [InstCombine] use nsw negation for abs libcalls 
Also, produce the canonical IR abs (s<0) to be more efficient. 

This is the libcall equivalent of the clang builtin change from:
rL333038

Pasting from that commit message:
The stdlib functions are defined in section 7.20.6.1 of the C standard with:
"If the result cannot be represented, the behavior is undefined."

That lets us mark the negation with 'nsw' because "sub i32 0, INT_MIN" would
be UB/poison.

llvm-svn: 333042
2018-05-22 23:29:40 +00:00
..
AddDiscriminators.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
ASanStackFrameLayout.cpp
[asan] Add a full redzone after every stack variable
2017-11-18 01:13:18 +00:00
BasicBlockUtils.cpp
[SimplifyCFG] Fix a crash when folding PHIs.
2018-05-08 23:28:15 +00:00
BreakCriticalEdges.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
BuildLibCalls.cpp
[InstCombine] Fix the signature of fgets_unlocked.
2018-05-16 21:45:39 +00:00
BypassSlowDivision.cpp
Remove \brief commands from doxygen comments.
2018-05-01 15:54:18 +00:00
CallPromotionUtils.cpp
[ICP] Do not attempt type matching for variable length arguments.
2018-04-25 17:19:21 +00:00
CloneFunction.cpp
Test commit access.
2018-05-14 08:24:29 +00:00
CloneModule.cpp
[DebugInfo][OPT] Fixing a couple of DI duplication bugs of CloneModule
2018-04-13 21:22:24 +00:00
CMakeLists.txt
[PR16756] Add SSAUpdaterBulk.
2018-04-09 23:37:20 +00:00
CodeExtractor.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
CtorUtils.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
DemoteRegToStack.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
EntryExitInstrumenter.cpp
EntryExitInstrumenter: Handle musttail calls
2018-04-06 10:14:09 +00:00
EscapeEnumerator.cpp
[WebAssembly] Add Wasm personality and isScopedEHPersonality()
2018-05-17 20:52:03 +00:00
Evaluator.cpp
Fix evaluator for non-zero alloca addr space
2018-05-19 02:58:16 +00:00
FlattenCFG.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
FunctionComparator.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
FunctionImportUtils.cpp
[ThinLTO] Clear dllimport when setting dso_local.
2018-03-13 15:24:51 +00:00
GlobalStatus.cpp
[GlobalOpt] Fix exponential compile-time with selects.
2018-01-31 20:42:25 +00:00
ImportedFunctionsInliningStatistics.cpp
[Transforms] Change std::sort to llvm::sort in response to r327219
2018-04-13 19:47:57 +00:00
InlineFunction.cpp
[WebAssembly] Add Wasm personality and isScopedEHPersonality()
2018-05-17 20:52:03 +00:00
InstructionNamer.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
IntegerDivision.cpp
Remove @brief commands from doxygen comments, too.
2018-05-01 16:10:38 +00:00
LCSSA.cpp
[LCSSA] Do not remove used PHI nodes in formLCSSAForInstructions
2018-05-08 06:59:47 +00:00
LibCallsShrinkWrap.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
LLVMBuild.txt
[PM/AA] Remove the last relics of the separate IPA library from LLVM,
2015-08-18 17:51:53 +00:00
Local.cpp
Constant fold launder of null and undef
2018-05-18 23:52:57 +00:00
LoopRotationUtils.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
LoopSimplify.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
LoopUnroll.cpp
[LoopUnroll] Split out simplify code after Unroll into a new function. NFC
2018-05-16 10:41:58 +00:00
LoopUnrollPeel.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
LoopUnrollRuntime.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
LoopUtils.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
LoopVersioning.cpp
[LoopVersioning] Don't modify the list that we iterate over in addPHINodes
2018-05-22 08:33:02 +00:00
LowerInvoke.cpp
Support a funclet operand bundle in LowerInvoke
2018-05-09 00:53:50 +00:00
LowerMemIntrinsics.cpp
[LowerMemIntrinsics] Update uses of deprecated MemIntrinsic::getAlignment API (NFC)
2018-02-05 22:23:58 +00:00
LowerSwitch.cpp
[LowerSwitch] Fixed faulty PHI node update
2018-05-22 08:46:48 +00:00
Mem2Reg.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
MetaRenamer.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
ModuleUtils.cpp
ModuleUtils: Stop using comdat members to generate unique module ids.
2017-10-05 21:54:53 +00:00
NameAnonGlobals.cpp
Use StringRef in Pass/PassManager APIs (NFC)
2016-10-01 02:56:57 +00:00
OrderedInstructions.cpp
Remove unneeded else from OrderedInstructions::dominates.
2017-06-29 17:01:03 +00:00
PredicateInfo.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
PromoteMemoryToRegister.cpp
[STLExtras] Add distance() for ranges, pred_size(), and succ_size()
2018-05-10 23:01:54 +00:00
SanitizerStats.cpp
Sort the remaining #include lines in include/... and lib/....
2017-06-06 11:49:48 +00:00
SimplifyCFG.cpp
[SimplifyCFG] Fix a debug invariant bug in FoldBranchToCommonDest()
2018-05-18 08:52:15 +00:00
SimplifyIndVar.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
SimplifyInstructions.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
SimplifyLibCalls.cpp
[InstCombine] use nsw negation for abs libcalls
2018-05-22 23:29:40 +00:00
SplitModule.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
SSAUpdater.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
SSAUpdaterBulk.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00
StripGCRelocates.cpp
Fix a couple of layering violations in Transforms
2018-03-21 22:34:23 +00:00
StripNonLineTableDebugInfo.cpp
Fix some layering in StripNonLineTableDebugInfo, moving its declaration from IPO.h to Utils.h to match its implementation
2018-03-29 22:42:08 +00:00
SymbolRewriter.cpp
Mark all library options as hidden.
2017-12-01 00:53:10 +00:00
UnifyFunctionExitNodes.cpp
Transforms: Introduce Transforms/Utils.h rather than spreading the declarations amongst Scalar.h and IPO.h
2018-03-28 17:44:36 +00:00
Utils.cpp
llvm-c: Split Utils out of Scalar.h
2018-03-29 22:31:38 +00:00
ValueMapper.cpp
Teach ValueMapper to use ODR uniqued types when available
2018-01-30 20:16:32 +00:00
VNCoercion.cpp
Rename DEBUG macro to LLVM_DEBUG.
2018-05-14 12:53:11 +00:00