Sanjay Patel a4554c2897 Improve sqrt estimate algorithm (fast-math) ... This patch changes the fast-math implementation for calculating sqrt(x) from: y = 1 / (1 / sqrt(x)) to: y = x * (1 / sqrt(x)) This has 2 benefits: less code / faster code and one less estimate instruction that may lose precision. The only target that will be affected (until http://reviews.llvm.org/D5658 is approved) is PPC. The difference in codegen for PPC is 2 less flops for a single-precision sqrtf or vector sqrtf and 4 less flops for a double-precision sqrt. We also eliminate a constant load and extra register usage. Differential Revision: http://reviews.llvm.org/D5682 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219445 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-09 21:26:35 +00:00
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Analysis	Revert "[BasicAA] Revert "Revert r218714 - Make better use of zext and sign information.""	2014-10-09 19:48:12 +00:00
AsmParser	Make CallingConv::ID an alias of "unsigned".	2014-09-10 18:00:17 +00:00
Bitcode	Do not destroy external linkage when deleting function body	2014-09-23 12:54:19 +00:00
CodeGen	Improve sqrt estimate algorithm (fast-math)	2014-10-09 21:26:35 +00:00
DebugInfo	Remove bogus std::error_code returns form SectionRef.	2014-10-08 15:28:58 +00:00
ExecutionEngine	Remove bogus std::error_code returns form SectionRef.	2014-10-08 15:28:58 +00:00
IR	DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself.	2014-10-07 16:56:20 +00:00
IRReader
LineEditor
Linker	Merge alignment of common GlobalValue.	2014-09-09 17:48:18 +00:00
LTO	LTO: Document the Boolean argument from r218784	2014-10-02 21:11:04 +00:00
MC	delete function name from comment	2014-10-09 21:23:39 +00:00
Object	Object, COFF: Move the VirtualSize/SizeOfRawData logic to getSectionSize	2014-10-09 08:42:31 +00:00
Option	Add an overload of getLastArgNoClaim taking two OptSpecifiers.	2014-09-12 19:42:53 +00:00
ProfileData	Remove bogus std::error_code returns form SectionRef.	2014-10-08 15:28:58 +00:00
Support	Add ApplePropertyString dump helper to Dwarf.{h|cpp}.	2014-10-09 20:43:04 +00:00
TableGen	Eliminate some deep std::vector copies. NFC.	2014-10-03 18:33:16 +00:00
Target	Fix bug in GPR to FPR moves in PPC64LE.	2014-10-09 20:42:56 +00:00
Transforms	[Reassociate] Don't canonicalize X - undef to X + (-undef).	2014-10-09 20:06:29 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile