Davide Italiano 9496ef1fef [SimplifyLibCalls] New transformation: tan(atan(x)) -> x ...

This is enabled only under -ffast-math.
So, instead of emitting:
  4007b0:       50                      push   %rax
  4007b1:       e8 8a fd ff ff          callq  400540 <atanf@plt>
  4007b6:       58                      pop    %rax
  4007b7:       e9 94 fd ff ff          jmpq   400550 <tanf@plt>
  4007bc:       0f 1f 40 00             nopl   0x0(%rax)

for:
float mytan(float x) {
  return tanf(atanf(x));
}
we emit a single retq.

Differential Revision:	 http://reviews.llvm.org/D14302


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252098 91177308-0d34-0410-b5e6-96231b3b80d8

2015-11-04 23:36:56 +00:00

..

AddDiscriminators.cpp

Recommit r251680 (also need to update clang test)

2015-10-30 05:07:15 +00:00

ASanStackFrameLayout.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

BasicBlockUtils.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

BreakCriticalEdges.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

BuildLibCalls.cpp

Simplify IRBuilder::CreateCall* by using ArrayRef+initializer_list/braced init only

2015-05-18 22:13:54 +00:00

BypassSlowDivision.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

CloneFunction.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

CloneModule.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

CMakeLists.txt

TransformUtils: Introduce module splitter.

2015-08-21 02:48:20 +00:00

CmpInstAnalysis.cpp

[C++] Use 'nullptr'. Transforms edition.

2014-04-25 05:29:35 +00:00

CodeExtractor.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

CtorUtils.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

DemoteRegToStack.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

FlattenCFG.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

GlobalStatus.cpp

GlobalOpt does not treat externally_initialized globals correctly

2015-10-12 13:20:52 +00:00

InlineFunction.cpp

[Inliner] Don't inline through callsites with operand bundles

2015-10-23 20:09:55 +00:00

InstructionNamer.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

IntegerDivision.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LCSSA.cpp

[LCSSA] Unbreak build, don't reuse L; NFC

2015-10-25 19:27:17 +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

Preserve load alignment and dereferenceable metadata during some transformations

2015-11-02 17:53:51 +00:00

LoopSimplify.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LoopUnroll.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LoopUnrollRuntime.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LoopUtils.cpp

[LoopUtils,LV] Propagate fast-math flags on generated FCmp instructions

2015-09-21 19:41:19 +00:00

LoopVersioning.cpp

Move the canonical header to the top of its matching cpp file as per coding convention

2015-10-26 18:40:56 +00:00

LowerInvoke.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LowerSwitch.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

Makefile

make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.

2010-01-24 20:43:08 +00:00

Mem2Reg.cpp

[PM] Split the AssumptionTracker immutable pass into two separate APIs:

2015-01-04 12:03:27 +00:00

MetaRenamer.cpp

Whoops, remove trailing whitespace.

2015-08-27 05:37:12 +00:00

ModuleUtils.cpp

[asan] Rename the ABI versioning symbol to '__asan_version_mismatch_check' instead of abusing '__asan_init'

2015-07-23 10:54:06 +00:00

PromoteMemoryToRegister.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

SimplifyCFG.cpp

[SimplifyCFG] Merge conditional stores

2015-11-04 15:28:04 +00:00

SimplifyIndVar.cpp

[IndVars] Preserve LCSSA in eliminateIdentitySCEV

2015-10-07 17:38:31 +00:00

SimplifyInstructions.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

SimplifyLibCalls.cpp

[SimplifyLibCalls] New transformation: tan(atan(x)) -> x

2015-11-04 23:36:56 +00:00

SplitModule.cpp

TransformUtils: Introduce module splitter.

2015-08-21 02:48:20 +00:00

SSAUpdater.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SymbolRewriter.cpp

Remove unnecessary includes

2015-08-08 00:41:53 +00:00

UnifyFunctionExitNodes.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

Utils.cpp

Pass to emit DWARF path discriminators.

2014-03-03 20:06:11 +00:00

ValueMapper.cpp

[opaque pointer type]: Pass explicit pointee type when building a constant GEP.

2015-08-21 20:16:51 +00:00