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Hal Finkel 4a1535c038 Make the PPC fast-math sqrt expansion safe at 0 
In fast-math mode sqrt(x) is calculated using the fast expansion of the
reciprocal of the reciprocal sqrt expansion. The reciprocal and reciprocal
sqrt expansions use the associated estimate instructions along with some Newton
iterations. Unfortunately, as a result, sqrt(0) was being calculated as NaN,
which is not correct. Now we explicitly return a result of zero if the input is
zero.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190624 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-12 19:04:12 +00:00
autoconf [conf] Add config variable to disable crash related overrides. 2013-08-30 20:39:21 +00:00
bindings [python-bindings] Added support for getting/setting operands of values and getting the number of operands of a value. 2013-09-11 01:38:12 +00:00
cmake Fixup for r190409: add dep on LZMA only if CMake is cross-compiling 2013-09-12 08:26:53 +00:00
docs Typo fixes. 2013-09-12 01:43:21 +00:00
examples
include Somehow this important part of the patch, where I actually check the Mask, 2013-09-12 14:23:19 +00:00
lib Make the PPC fast-math sqrt expansion safe at 0 2013-09-12 19:04:12 +00:00
projects
runtime Bring back the build of libprofile_rt on Sparc. It is now working correctly. See: 2013-09-08 09:15:09 +00:00
test Make the PPC fast-math sqrt expansion safe at 0 2013-09-12 19:04:12 +00:00
tools [LTO] Fix the LTO tool, after my API breakage. 2013-09-12 12:55:29 +00:00
unittests Re-submit r190469: YAMLIO: Fix string quoting logic. 2013-09-11 04:00:08 +00:00
utils Add an instruction deprecation feature to TableGen. 2013-09-12 10:28:05 +00:00
.arcconfig
.clang-format Add a clang-format file so that the tool can automatically detect the 2013-09-02 07:19:04 +00:00
.gitignore
CMakeLists.txt [conf] Add config variable to disable crash related overrides. 2013-08-30 20:39:21 +00:00
CODE_OWNERS.TXT
configure [conf] Add config variable to disable crash related overrides. 2013-08-30 20:39:21 +00:00
CREDITS.TXT
LICENSE.TXT
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