Sanjay Patel 7c5fa50875 use -0.0 when creating an fneg instruction ...

Backends recognize (-0.0 - X) as the canonical form for fneg
and produce better code. Eg, ppc64 with 0.0:

   lis r2, ha16(LCPI0_0)
   lfs f0, lo16(LCPI0_0)(r2)
   fsubs f1, f0, f1
   blr

vs. -0.0:

   fneg f1, f1
   blr

Differential Revision: http://reviews.llvm.org/D6723



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224583 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-19 16:44:08 +00:00

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Analysis

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Assembler

DebugInfo: Update testcase to actually check something

2014-12-16 07:08:19 +00:00

Bindings

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Bitcode

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BugPoint

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CodeGen

[mips][microMIPS] Fix bugs related to atomic SC/LL instructions

2014-12-18 16:39:29 +00:00

DebugInfo

PR21875: codegen for non-type template parameters of nullptr_t type

2014-12-17 00:43:22 +00:00

ExecutionEngine

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Feature

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FileCheck

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Instrumentation

[sanitizer] prevent function call merging for sanitizer-coverage callbacks

2014-12-16 21:24:15 +00:00

Integer

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JitListener

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Linker

Reapply "Linker: Drop superseded subprograms"

2014-12-18 01:05:33 +00:00

LTO

llvm-lto: Add testing coverage for local contexts

2014-12-17 02:00:38 +00:00

MC

[Hexagon] Adding loop0/1 sp0/1/2loop0 instructions.

2014-12-19 00:06:53 +00:00

Object

[Object] Don't crash on empty export lists.

2014-12-19 02:31:01 +00:00

Other

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SymbolRewriter

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TableGen

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tools

Add printing the LC_SUB_UMBRELLA load command with llvm-objdump’s -private-headers.

2014-12-18 23:13:26 +00:00

Transforms

use -0.0 when creating an fneg instruction

2014-12-19 16:44:08 +00:00

Unit

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Verifier

IR: Stop printing 'metadata' in Metadata::print()

2014-12-16 07:40:31 +00:00

YAMLParser

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.clang-format

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CMakeLists.txt

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lit.cfg

Teach lit.cfg to recognize -windows-gnu in addition to -mingw32.

2014-12-17 09:55:15 +00:00

lit.site.cfg.in

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Makefile

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Makefile.tests

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TestRunner.sh

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