Juergen Ributzka 1941431f8a 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 for the given target. This mask has usually te 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>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191130 91177308-0d34-0410-b5e6-96231b3b80d8		2013-09-21 04:55:18 +00:00
..
Analysis	Fix a constant folding address space place I missed.	2013-09-17 23:23:16 +00:00
AsmParser	Implement function prefix data as an IR feature.	2013-09-16 01:08:15 +00:00
Bitcode	Implement function prefix data as an IR feature.	2013-09-16 01:08:15 +00:00
CodeGen	SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too.	2013-09-21 04:55:18 +00:00
DebugInfo	Revert r191062; the build break was also fixed in a different (incompatible) way in r191060.	2013-09-20 01:24:10 +00:00
ExecutionEngine	Revert "llvm-c: Add LLVMGetPointerToFunction"	2013-09-20 07:00:36 +00:00
IR	Revert "Encapsulate PassManager debug flags to avoid static init and cxa_exit."	2013-09-19 06:02:43 +00:00
IRReader	Add 'const' qualifiers to static const char* variables.	2013-07-16 01:17:10 +00:00
Linker	Implement function prefix data as an IR feature.	2013-09-16 01:08:15 +00:00
MC	Initialize BSSSection explicitly in InitMachOMCObjectFileInfo() to appease msvc.	2013-09-21 02:34:45 +00:00
Object	ELF: Add support for the exclude section bit for gas compat.	2013-09-15 19:53:20 +00:00
Option	Fix another mistake in r190442.	2013-09-10 23:22:56 +00:00
Support	DebugInfo: GDBIndexEntry*String conversion functions now return const char* for easy llvm::formating	2013-09-20 00:33:15 +00:00
TableGen	Add an error check for a typo I accidentally made in a td file that caused an assert to fire.	2013-08-20 04:22:09 +00:00
Target	SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too.	2013-09-21 04:55:18 +00:00
Transforms	Reapply "SLPVectorizer: Handle more horizontal reductions (disabled)""	2013-09-21 01:06:00 +00:00
CMakeLists.txt	Move lib/Archive to tools/llvm-ar.	2013-06-17 15:47:20 +00:00
LLVMBuild.txt	Move lib/Archive to tools/llvm-ar.	2013-06-17 15:47:20 +00:00
Makefile	Move lib/Archive to tools/llvm-ar.	2013-06-17 15:47:20 +00:00