Sanjay Patel 2e19fa34bb Shrinkify libcalls: use float versions of double libm functions with fast-math (bug 17850) ... When a call to a double-precision libm function has fast-math semantics (via function attribute for now because there is no IR-level FMF on calls), we can avoid fpext/fptrunc operations and use the float version of the call if the input and output are both float. We already do this optimization using a command-line option; this patch just adds the ability for fast-math to use the existing functionality. I moved the cl::opt from InstructionCombining into SimplifyLibCalls because it's only ever used internally to that class. Modified the existing test cases to use the unsafe-fp-math attribute rather than repeating all tests. This patch should solve: http://llvm.org/bugs/show_bug.cgi?id=17850 Differential Revision: http://reviews.llvm.org/D5893 llvm-svn: 220390		2014-10-22 15:29:23 +00:00
..
AddDiscriminators.cpp	Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks.	2014-08-21 22:45:21 +00:00
ASanStackFrameLayout.cpp	Revert "Introduce a string_ostream string builder facilty"	2014-06-26 22:52:05 +00:00
BasicBlockUtils.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
BreakCriticalEdges.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
BuildLibCalls.cpp	Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created.	2014-08-27 05:25:25 +00:00
BypassSlowDivision.cpp	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00
CloneFunction.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
CloneModule.cpp	C API: Add LLVMCloneModule()	2014-10-01 17:14:57 +00:00
CMakeLists.txt	Decouple llvm::SpecialCaseList text representation and its LLVM IR semantics.	2014-07-09 19:40:08 +00:00
CmpInstAnalysis.cpp	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00
CodeExtractor.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
CtorUtils.cpp	GlobalOpt: Preserve comdats of unoptimized initializers	2014-09-23 22:33:01 +00:00
DemoteRegToStack.cpp	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00
FlattenCFG.cpp	utils: Fix segfault in flattencfg	2014-08-13 20:31:53 +00:00
GlobalStatus.cpp	Remove dangling initializers in GlobalDCE	2014-08-25 17:51:14 +00:00
InlineFunction.cpp	Do not attribute static allocas to the call site's DebugLoc.	2014-10-21 01:00:55 +00:00
InstructionNamer.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
IntegerDivision.cpp	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:55:47 +00:00
LCSSA.cpp	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:55:47 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
Local.cpp	Teach combineMetadata how to merge 'nonnull' metadata.	2014-10-21 21:02:19 +00:00
LoopSimplify.cpp	Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)	2014-09-07 18:57:58 +00:00
LoopUnroll.cpp	LoopUnroll: Create sub-loops in LoopInfo	2014-10-07 21:19:00 +00:00
LoopUnrollRuntime.cpp	Use a loop to simplify the runtime unrolling prologue.	2014-09-29 11:15:00 +00:00
LowerExpectIntrinsic.cpp	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:55:47 +00:00
LowerInvoke.cpp	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:55:47 +00:00
LowerSwitch.cpp	Fixup PHIs in LowerSwitch when a Leaf node is not emitted.	2014-07-11 10:34:36 +00:00
Makefile
Mem2Reg.cpp	Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)	2014-09-07 18:57:58 +00:00
MetaRenamer.cpp	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-05 09:10:37 +00:00
ModuleUtils.cpp	Repace SmallPtrSet with SmallPtrSetImpl in function arguments to avoid needing to mention the size.	2014-08-21 05:55:13 +00:00
PromoteMemoryToRegister.cpp	Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)	2014-09-07 18:57:58 +00:00
SimplifyCFG.cpp	Switch to select optimization for two-case switches	2014-10-14 01:58:26 +00:00
SimplifyIndVar.cpp	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00
SimplifyInstructions.cpp	Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)	2014-09-07 18:57:58 +00:00
SimplifyLibCalls.cpp	Shrinkify libcalls: use float versions of double libm functions with fast-math (bug 17850)	2014-10-22 15:29:23 +00:00
SSAUpdater.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
UnifyFunctionExitNodes.cpp	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00
Utils.cpp	Pass to emit DWARF path discriminators.	2014-03-03 20:06:11 +00:00
ValueMapper.cpp	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00