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Sanjay Patel e68f71574f 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

llvm-svn: 225050
2014-12-31 22:14:05 +00:00
clang [analyzer] Include a couple more comments on using xcrun to query the SDK. 2014-12-31 08:19:08 +00:00
clang-tools-extra Fixed a typo in a comment. NFC. 2014-12-19 15:37:02 +00:00
compiler-rt Avoid building compiler-rt with LTO. 2014-12-31 18:20:52 +00:00
debuginfo-tests New round of fixes for "Always compile debuginfo-tests for the host triple" 2014-10-18 23:47:59 +00:00
libclc r600: get_work_dim: Update metadata syntax for LLVM 3.6 2014-12-31 15:27:59 +00:00
libcxx [cmake/multilib] Teach libc++'s CMake build to support multilib libdir 2014-12-29 12:15:47 +00:00
libcxxabi [cmake/multilib] Teach libc++abi's CMake build to support multilib 2014-12-29 12:22:04 +00:00
lld [py3] Make this test compatible with Python 3 where bytes and 2014-12-29 19:23:31 +00:00
lldb Update the website with information about LLDB on Windows. 2014-12-31 00:06:49 +00:00
llgo [llgo] Elide alloca for unused received values in select 2014-12-31 03:46:49 +00:00
llvm InstCombine: fsub nsz 0, X ==> fsub nsz -0.0, X 2014-12-31 22:14:05 +00:00
openmp I apologise in advance for the size of this check-in. At Intel we do 2014-10-07 16:25:50 +00:00
polly (diagnostics) fix typo in test... 2014-12-19 17:22:46 +00:00