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mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-22 18:54:02 +01:00
llvm-mirror/unittests
Sanjay Patel 14a74b66f7 add fast-math-flags to 'call' instructions (PR21290)
This patch adds optional fast-math-flags (the same that apply to fmul/fadd/fsub/fdiv/frem/fcmp)
to call instructions in IR. Follow-up patches would use these flags in LibCallSimplifier, add 
support to clang, and extend FMF to the DAG for calls.

Motivating example:

%y = fmul fast float %x, %x
%z = tail call float @sqrtf(float %y)

We'd like to be able to optimize sqrt(x*x) into fabs(x). We do this today using a function-wide
attribute for unsafe-math, but we really want to trigger on the instructions themselves:

%z = tail call fast float @sqrtf(float %y)

because in an LTO build it's possible that calls with fast semantics have been inlined into a
function with non-fast semantics.

The code changes and tests are based on the recent commits that added "notail":
http://reviews.llvm.org/rL252368

and added FMF to fcmp:
http://reviews.llvm.org/rL241901

Differential Revision: http://reviews.llvm.org/D14707

llvm-svn: 255555
2015-12-14 21:59:03 +00:00
..
ADT Handle ARMv6-J as an alias, instead of fake architecture 2015-11-20 16:46:09 +00:00
Analysis [AA] Enhance the new AliasAnalysis infrastructure with an optional 2015-10-21 12:15:19 +00:00
AsmParser Fix PR 24633 - Handle undef values when parsing standalone constants. 2015-09-09 13:44:33 +00:00
Bitcode Fix memory leak in unit test of Bitcode/BitReaderTest.cpp 2015-08-03 21:23:51 +00:00
CodeGen AsmPrinter: Use an intrusively linked list for DIE::Children 2015-06-25 23:52:10 +00:00
DebugInfo Fix compilation of PDBApiTest. 2015-05-01 20:51:49 +00:00
ExecutionEngine [Orc] Removing traces of takeOwnershipOfBuffers left after r251560. 2015-12-07 17:35:56 +00:00
IR add fast-math-flags to 'call' instructions (PR21290) 2015-12-14 21:59:03 +00:00
LineEditor Use 'override/final' instead of 'virtual' for overridden methods 2015-04-11 02:11:45 +00:00
Linker Always pass a diagnostic handler to the linker. 2015-12-04 22:08:53 +00:00
MC Add a RAW mode to StringTableBuilder. 2015-10-23 21:48:05 +00:00
Option [Option] Use an ArrayRef to store the Option Infos in OptTable. NFC 2015-10-21 16:30:42 +00:00
ProfileData [ProfileData] Add unit test infrastructure for sample profile reader/writer 2015-12-10 17:21:42 +00:00
Support Revert r255444. 2015-12-13 04:14:39 +00:00
Transforms Return a std::unique_ptr from CloneModule. NFC. 2015-12-08 23:57:17 +00:00
CMakeLists.txt AsmParser: Require a terminating null character when creating memory buffer. 2015-05-20 20:41:27 +00:00
Makefile AsmParser: Require a terminating null character when creating memory buffer. 2015-05-20 20:41:27 +00:00
Makefile.unittest With rpaths being set correctly, SHLIBPATH_VAR is not needed anymore. 2014-02-28 16:16:51 +00:00