Juergen Ributzka b47be624ea SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too. ... This patch reapplies r193676 with an additional fix for the Hexagon backend. The SystemZ backend has already been fixed by r194148. 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. 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 llvm-svn: 194542		2013-11-13 01:57:54 +00:00
..
CMakeLists.txt	llvm/lib: [CMake] Add explicit dependency to intrinsics_gen.	2012-06-24 13:32:01 +00:00
DAGCombiner.cpp	SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too.	2013-11-13 01:57:54 +00:00
FastISel.cpp	Fix indenting.	2013-10-14 20:15:04 +00:00
FunctionLoweringInfo.cpp	Debug Info: clean up usage of Verify.	2013-06-28 05:43:10 +00:00
InstrEmitter.cpp	[Stackmap] Materialize the jump address within the patchpoint noop slide.	2013-11-09 01:51:33 +00:00
InstrEmitter.h	Revert "Give internal classes hidden visibility."	2013-09-11 18:05:11 +00:00
LegalizeDAG.cpp	Fix CodeGen for unaligned loads with address spaces	2013-10-30 23:30:05 +00:00
LegalizeFloatTypes.cpp	Keep TBAA info when rewriting SelectionDAG loads and stores	2013-10-28 11:17:59 +00:00
LegalizeIntegerTypes.cpp	Keep TBAA info when rewriting SelectionDAG loads and stores	2013-10-28 11:17:59 +00:00
LegalizeTypes.cpp	Update makeLibCall to return both the call and the chain associated with the libcall instead of just the call. This allows us to specify libcalls that return void.	2013-08-13 17:54:56 +00:00
LegalizeTypes.h	Legalize: Improve legalization of long vector extends.	2013-10-31 00:20:48 +00:00
LegalizeTypesGeneric.cpp	SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too.	2013-11-13 01:57:54 +00:00
LegalizeVectorOps.cpp	Keep TBAA info when rewriting SelectionDAG loads and stores	2013-10-28 11:17:59 +00:00
LegalizeVectorTypes.cpp	Legalize: Improve legalization of long vector extends.	2013-10-31 00:20:48 +00:00
LLVMBuild.txt
Makefile
ResourcePriorityQueue.cpp	Rename variables for consistency.	2013-09-11 00:41:02 +00:00
ScheduleDAGFast.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
ScheduleDAGRRList.cpp	Fix spelling intruction -> instruction.	2013-09-28 11:46:15 +00:00
ScheduleDAGSDNodes.cpp	[PATCH] Fix PR17168 (DAG scheduler inserts DBG_VALUE before PHI with fast-isel)	2013-10-18 14:20:11 +00:00
ScheduleDAGSDNodes.h	Revert "Give internal classes hidden visibility."	2013-09-11 18:05:11 +00:00
ScheduleDAGVLIW.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
SDNodeDbgValue.h	Revert "Give internal classes hidden visibility."	2013-09-11 18:05:11 +00:00
SelectionDAG.cpp	Fix "existant" typos	2013-10-29 02:35:28 +00:00
SelectionDAGBuilder.cpp	[Stackmap] Materialize the jump address within the patchpoint noop slide.	2013-11-09 01:51:33 +00:00
SelectionDAGBuilder.h	[Stackmap] Add AnyReg calling convention support for patchpoint intrinsic.	2013-11-08 23:28:16 +00:00
SelectionDAGDumper.cpp	Add ISD::FROUND for libm round()	2013-08-07 22:49:12 +00:00
SelectionDAGISel.cpp	Fix some assert messages to say the correct opcode name. Looks like one assert got copy and pasted to many places.	2013-10-06 22:38:19 +00:00
SelectionDAGPrinter.cpp	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
TargetLowering.cpp	Lower stackmap intrinsics directly to their target opcode in the DAG builder.	2013-10-31 17:18:24 +00:00
TargetSelectionDAGInfo.cpp	Move TargetData to DataLayout.	2012-10-08 16:38:25 +00:00