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
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Analysis	[InstSimplify] Support constant folding to vector of pointers	2014-10-22 12:18:48 +00:00
AsmParser
Bitcode	IR: Reorder metadata bitcode serialization, NFC	2014-10-21 22:27:47 +00:00
CodeGen	Fix typo	2014-10-22 00:28:59 +00:00
DebugInfo	Constify input argument of RelocVisitor and DWARFContext constructors. NFC.	2014-10-20 20:28:51 +00:00
ExecutionEngine	[MCJIT] Defer application of AArch64 MachO GOT relocations until resolve time.	2014-10-21 23:41:15 +00:00
IR	Revert "Teach the load analysis to allow finding available values which require" (r220277)	2014-10-21 23:49:52 +00:00
IRReader
LineEditor
Linker
LTO	LTO: Document the Boolean argument from r218784	2014-10-02 21:11:04 +00:00
MC	Drop support for an old version of ld64 (from darwin 9).	2014-10-21 18:31:09 +00:00
Object	[MCJIT] Temporarily revert r220245 - it broke several bots.	2014-10-21 00:24:02 +00:00
Option	Add an overload of getLastArgNoClaim taking two OptSpecifiers.	2014-09-12 19:42:53 +00:00
ProfileData	Reduce double set lookups. NFC.	2014-10-10 15:32:50 +00:00
Support	PR21202: Memory leak in Windows RWMutexImpl when using SRWLOCK	2014-10-21 00:34:39 +00:00
TableGen	Eliminate some deep std::vector copies. NFC.	2014-10-03 18:33:16 +00:00
Target	[PowerPC] Support select-cc for VSX	2014-10-22 13:13:40 +00:00
Transforms	Shrinkify libcalls: use float versions of double libm functions with fast-math (bug 17850)	2014-10-22 15:29:23 +00:00
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