Juergen Ributzka 4eced19c50 SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too. ... The Type Legalizer recognizes that VSELECT needs to be split, because the type is to wide for the given target. The same does not always apply to SETCC, because less space is required to encode the result of a comparison. As a result VSELECT is split and SETCC is unrolled into scalar comparisons. This commit fixes the issue by checking for VSELECT-SETCC patterns in the DAG Combiner. If a matching pattern is found, then the result mask of SETCC is promoted to the expected vector mask type for the given target. This mask has usually the same size as the VSELECT return type (except for Intel KNL). Now the type legalizer will split both VSELECT and SETCC. This allows the following X86 DAG Combine code to sucessfully detect the MIN/MAX pattern. This fixes PR16695, PR17002, and <rdar://problem/14594431>. Reviewed by Nadav git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193676 91177308-0d34-0410-b5e6-96231b3b80d8		2013-10-30 05:48:18 +00:00
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Analysis	SCEV: Make the final add of an inbounds GEP nuw if we know that the index is positive.	2013-10-28 07:30:06 +00:00
Assembler
Bindings
Bitcode
BugPoint
CodeGen	SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too.	2013-10-30 05:48:18 +00:00
DebugInfo	Debug Info: instead of calling addToContextOwner which constructs the context	2013-10-29 22:49:29 +00:00
ExecutionEngine	Adding a workaround for __main linking with remote lli and Cygwin/MinGW	2013-10-29 01:29:56 +00:00
Feature
FileCheck	Fix "existant" typos	2013-10-29 02:35:28 +00:00
Instrumentation	fix PR17635: false positive with packed structures	2013-10-24 09:17:24 +00:00
Integer
JitListener
Linker
LTO
MC	Support for microMIPS jump instructions	2013-10-29 16:38:59 +00:00
Object
Other	Quote potential shell expansions found in tests	2013-10-28 23:37:45 +00:00
TableGen
tools
Transforms	Add llvm/test/Transforms/SLPVectorizer/ARM/lit.local.cfg. Tests there require ARM in targets.	2013-10-29 02:46:00 +00:00
Unit
Verifier
YAMLParser
CMakeLists.txt	lit: add missing substitutions for recently added tools	2013-10-28 23:37:49 +00:00
lit.cfg	lit: add missing substitutions for recently added tools	2013-10-28 23:37:49 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh