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Daniel Sanders e777fb4725 Re-commit: [mips] abs.[ds], and neg.[ds] should be allowed regardless of -enable-no-nans-fp-math 
Summary:
They behave in accordance with the Has2008 and ABS2008 configuration bits of the processor which are used to select between the 1985 and 2008 versions of IEEE 754. In 1985 mode, these instructions are arithmetic (i.e. they raise invalid operation exceptions when given NaN), in 2008 mode they are non-arithmetic (i.e. they are copies).

nmadd.[ds], and nmsub.[ds] are still subject to -enable-no-nans-fp-math because the ISA spec does not explicitly state that they obey Has2008 and ABS2008.

Fixed the issue with the previous version of this patch (r205628). A pre-existing 'let Predicate =' statement was removing some predicates that were necessary for FP64 to behave correctly.

Reviewers: matheusalmeida

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3274



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205844 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-09 09:56:43 +00:00
autoconf ARM64: initial backend import 2014-03-29 10:18:08 +00:00
bindings
cmake ARM64: initial backend import 2014-03-29 10:18:08 +00:00
docs [docs] VCS contains a record of authorship 2014-04-08 21:12:56 +00:00
examples
include [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
lib Re-commit: [mips] abs.[ds], and neg.[ds] should be allowed regardless of -enable-no-nans-fp-math 2014-04-09 09:56:43 +00:00
projects
test Re-commit: [mips] abs.[ds], and neg.[ds] should be allowed regardless of -enable-no-nans-fp-math 2014-04-09 09:56:43 +00:00
tools [yaml2obj][ELF] Rename class SectionNameToIdxMap => NameToIdxMap. It can 2014-04-06 09:02:55 +00:00
unittests YAMLIO: Encode ambiguous hex strings explicitly 2014-04-09 07:56:27 +00:00
utils When a CHECK-NEXT fails because there was no match on the next line, include 2014-04-07 17:09:53 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format
.gitignore
CMakeLists.txt Add ability to disable building LLVM utils 2014-04-02 22:49:58 +00:00
CODE_OWNERS.TXT ARM Linux support 2014-04-02 23:03:28 +00:00
configure ARM64: initial backend import 2014-03-29 10:18:08 +00:00
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LICENSE.TXT
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
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