Sanjay Patel a3a48d96c9 add fast-math-flags to 'call' instructions (PR21290) ... This patch adds optional fast-math-flags (the same that apply to fmul/fadd/fsub/fdiv/frem/fcmp) to call instructions in IR. Follow-up patches would use these flags in LibCallSimplifier, add support to clang, and extend FMF to the DAG for calls. Motivating example: %y = fmul fast float %x, %x %z = tail call float @sqrtf(float %y) We'd like to be able to optimize sqrt(x*x) into fabs(x). We do this today using a function-wide attribute for unsafe-math, but we really want to trigger on the instructions themselves: %z = tail call fast float @sqrtf(float %y) because in an LTO build it's possible that calls with fast semantics have been inlined into a function with non-fast semantics. The code changes and tests are based on the recent commits that added "notail": http://reviews.llvm.org/rL252368 and added FMF to fcmp: http://reviews.llvm.org/rL241901 Differential Revision: http://reviews.llvm.org/D14707 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255555 91177308-0d34-0410-b5e6-96231b3b80d8		2015-12-14 21:59:03 +00:00
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AttributesTest.cpp
CMakeLists.txt	[PM/AA] Remove the last relics of the separate IPA library from LLVM,	2015-08-18 17:51:53 +00:00
ConstantRangeTest.cpp	[IR] Add a makeNoWrapRegion method to ConstantRange	2015-10-22 03:12:57 +00:00
ConstantsTest.cpp	[ConstantFold] Fix bitcast to gep constant folding transform.	2015-12-14 19:30:32 +00:00
DebugInfoTest.cpp
DominatorTreeTest.cpp	unittests: Remove implicit ilist iterator conversions, NFC	2015-10-20 18:30:20 +00:00
InstructionsTest.cpp
IRBuilderTest.cpp	add fast-math-flags to 'call' instructions (PR21290)	2015-12-14 21:59:03 +00:00
LegacyPassManagerTest.cpp	unittests: Remove implicit ilist iterator conversions, NFC	2015-10-20 18:30:20 +00:00
Makefile	[PM/AA] Remove the last relics of the separate IPA library from LLVM,	2015-08-18 17:51:53 +00:00
MDBuilderTest.cpp
MetadataTest.cpp	Macro debug info support in LLVM IR	2015-12-10 12:56:35 +00:00
PassManagerTest.cpp
PatternMatch.cpp
TypeBuilderTest.cpp
TypesTest.cpp	Add unit test for isLayoutIdentical(empty, empty).	2015-08-18 07:59:09 +00:00
UserTest.cpp
UseTest.cpp
ValueHandleTest.cpp	-Wdeprecated-clean: Fix cases of violating the rule of 5 in ways that are deprecated in C++11	2015-08-03 22:30:24 +00:00
ValueMapTest.cpp
ValueTest.cpp	unittests: Remove implicit ilist iterator conversions, NFC	2015-10-20 18:30:20 +00:00
VerifierTest.cpp	[Verifier] Improve error for cross-module refs	2015-12-01 19:06:36 +00:00
WaymarkTest.cpp