Sanjay Patel 28650b8ec2 InstCombine: fsub nsz 0, X ==> fsub nsz -0.0, X ...

Some day the backend may handle instruction-level fast math flags and make
this transform unnecessary, but it's still better practice to use the canonical
representation of fneg when possible (use a -0.0).

This is a partial fix for PR20870 ( http://llvm.org/bugs/show_bug.cgi?id=20870 ).
See also http://reviews.llvm.org/D6723.

Differential Revision: http://reviews.llvm.org/D6731



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225050 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-31 22:14:05 +00:00

..

Analysis

ValueTracking: Small cleanup in ComputeNumSignBits

2014-12-26 09:20:17 +00:00

AsmParser

IR: Make metadata typeless in assembly

2014-12-15 19:07:53 +00:00

Bitcode

Fix Visual C++ error "'llvm::make_unique' : ambiguous call to overloaded function".

2014-12-18 10:03:35 +00:00

CodeGen

Revert "merge consecutive stores of extracted vector elements"

2014-12-31 00:40:28 +00:00

DebugInfo

[DebugInfo] Move all DWARF headers to the public include directory.

2014-12-19 18:26:33 +00:00

ExecutionEngine

RTDyldMemoryManager.cpp: Make the reference to __morestack weak.

2014-12-30 22:52:33 +00:00

IR

Some code improvements in Masked Load/Store.

2014-12-30 14:28:14 +00:00

IRReader

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LineEditor

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Linker

Finish removing DestroySource.

2014-12-23 19:16:45 +00:00

LTO

LTO: Lazy-load LTOModule in local contexts

2014-12-17 22:05:42 +00:00

MC

Add r224985 back with a fix.

2014-12-31 17:19:34 +00:00

Object

Add printing the LC_THREAD load commands with llvm-objdump’s -private-headers.

2014-12-23 22:56:39 +00:00

Option

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ProfileData

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Support

Remove unnecessary StringRef->std::string conversion.

2014-12-29 20:59:02 +00:00

TableGen

Clean up static analyzer warnings.

2014-12-12 21:48:03 +00:00

Target

Add r224985 back with a fix.

2014-12-31 17:19:34 +00:00

Transforms

InstCombine: fsub nsz 0, X ==> fsub nsz -0.0, X

2014-12-31 22:14:05 +00:00

CMakeLists.txt

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LLVMBuild.txt

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Makefile

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