Juergen Ributzka c7e77f91fe 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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194542 91177308-0d34-0410-b5e6-96231b3b80d8		2013-11-13 01:57:54 +00:00
..
InstPrinter	Remove unused stdio.h includes	2013-08-18 08:29:51 +00:00
MCTargetDesc	Add a MCAsmInfoELF class and factor some code into it.	2013-10-16 01:34:32 +00:00
TargetInfo	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
CMakeLists.txt	Target/*/CMakeLists.txt: Add the dependency to CommonTableGen explicitly for each corresponding CodeGen.	2013-08-06 06:38:37 +00:00
Hexagon.h	Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change.	2013-06-19 21:36:55 +00:00
Hexagon.td	Hexagon: Fix switch statements in GetDotOldOp and IsNewifyStore.	2013-05-10 20:58:11 +00:00
HexagonAsmPrinter.cpp	Add a helper getSymbol to AsmPrinter.	2013-10-29 17:07:16 +00:00
HexagonAsmPrinter.h	Delete executive bit on ./lib/Target/Hexagon/HexagonAsmPrinter.h.	2012-12-29 15:23:06 +00:00
HexagonCallingConv.td
HexagonCallingConvLower.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
HexagonCallingConvLower.h	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
HexagonCFGOptimizer.cpp	Print IR from Hexagon MI passes with -print-before/after-all.	2013-05-06 21:58:00 +00:00
HexagonCopyToCombine.cpp	Hexagon: Typo fix.	2013-05-28 19:01:45 +00:00
HexagonExpandPredSpillCode.cpp	Print IR from Hexagon MI passes with -print-before/after-all.	2013-05-06 21:58:00 +00:00
HexagonFixupHwLoops.cpp	Extend Hexagon hardware loop generation to handle various additional cases:	2013-02-11 21:37:55 +00:00
HexagonFrameLowering.cpp	Remove dead calls to addFrameMove.	2013-05-16 15:08:37 +00:00
HexagonFrameLowering.h	Move the eliminateCallFramePseudoInstr method from TargetRegisterInfo	2013-02-21 20:05:00 +00:00
HexagonHardwareLoops.cpp	Replace some unnecessary vector copies with references.	2013-09-15 22:04:42 +00:00
HexagonInstrFormats.td	Even more spelling fixes for "instruction".	2013-09-28 13:42:22 +00:00
HexagonInstrFormatsV4.td	Hexagon: Change insn class to support instruction encoding.	2013-02-14 19:57:17 +00:00
HexagonInstrInfo.cpp	DebugInfo: remove target-specific Frame Index handling for DBG_VALUE MachineInstrs	2013-06-16 20:34:27 +00:00
HexagonInstrInfo.h	DebugInfo: remove target-specific Frame Index handling for DBG_VALUE MachineInstrs	2013-06-16 20:34:27 +00:00
HexagonInstrInfo.td	Hexagon: Pass to replace tranfer/copy instructions into combine instruction	2013-05-14 18:54:06 +00:00
HexagonInstrInfoV3.td	Hexagon: Use multiclass for Jump instructions.	2013-05-01 21:37:34 +00:00
HexagonInstrInfoV4.td	Prune trailing linefeeds.	2013-10-28 04:07:31 +00:00
HexagonInstrInfoV5.td	Hexagon: Fix switch cases in HexagonVLIWPacketizer.cpp.	2013-05-10 20:27:34 +00:00
HexagonIntrinsics.td
HexagonIntrinsicsDerived.td
HexagonIntrinsicsV3.td
HexagonIntrinsicsV4.td
HexagonIntrinsicsV5.td	Remove tabs.	2012-07-19 00:25:04 +00:00
HexagonISelDAGToDAG.cpp	ISelDAG: spot chain cycles involving MachineNodes	2013-09-22 08:21:56 +00:00
HexagonISelLowering.cpp	Hexagon: Remove global state.	2013-10-27 11:16:09 +00:00
HexagonISelLowering.h	SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too.	2013-11-13 01:57:54 +00:00
HexagonMachineFunctionInfo.h	Hexagon: Use multiclass for Jump instructions.	2013-05-01 21:37:34 +00:00
HexagonMachineScheduler.cpp	Rename variables for consistency.	2013-09-11 00:41:02 +00:00
HexagonMachineScheduler.h	mi-sched: Precompute a PressureDiff for each instruction, adjust for liveness later.	2013-08-30 03:49:48 +00:00
HexagonMCInstLower.cpp	Add a helper getSymbol to AsmPrinter.	2013-10-29 17:07:16 +00:00
HexagonNewValueJump.cpp	Suppress GCC compiler warnings in release builds about variables that are only	2013-05-13 07:50:47 +00:00
HexagonOperands.td	Move all operand definitions into HexagonOperands.td	2012-12-04 05:00:31 +00:00
HexagonPeephole.cpp	Even more spelling fixes for "instruction".	2013-09-28 13:42:22 +00:00
HexagonRegisterInfo.cpp	Remove getEHExceptionRegister and getEHHandlerRegister.	2013-10-07 13:39:22 +00:00
HexagonRegisterInfo.h	Remove getEHExceptionRegister and getEHHandlerRegister.	2013-10-07 13:39:22 +00:00
HexagonRegisterInfo.td	Make SubRegIndex size mandatory, following r183020.	2013-05-31 23:45:26 +00:00
HexagonRemoveSZExtArgs.cpp	Print IR from Hexagon MI passes with -print-before/after-all.	2013-05-06 21:58:00 +00:00
HexagonSchedule.td	Hexagon: Change insn class to support instruction encoding.	2013-02-14 19:57:17 +00:00
HexagonScheduleV4.td	Hexagon: Change insn class to support instruction encoding.	2013-02-14 19:57:17 +00:00
HexagonSelectCCInfo.td
HexagonSelectionDAGInfo.cpp	Track IR ordering of SelectionDAG nodes 2/4.	2013-05-25 02:42:55 +00:00
HexagonSelectionDAGInfo.h	Track IR ordering of SelectionDAG nodes 2/4.	2013-05-25 02:42:55 +00:00
HexagonSplitConst32AndConst64.cpp	Remove use of forbidden 'iostream' header.	2013-08-21 20:36:42 +00:00
HexagonSplitTFRCondSets.cpp	Print IR from Hexagon MI passes with -print-before/after-all.	2013-05-06 21:58:00 +00:00
HexagonSubtarget.cpp	Hexagon: Add and enable memops setbit, clrbit, &,|,+,- for byte, short, and word.	2013-03-22 18:41:34 +00:00
HexagonSubtarget.h	Sort includes for all of the .h files under the 'lib' tree. These were	2012-12-04 07:12:27 +00:00
HexagonTargetMachine.cpp	Allow subtarget selection of the default MachineScheduler and document the interface.	2013-09-20 05:14:41 +00:00
HexagonTargetMachine.h	Switch TargetTransformInfo from an immutable analysis pass that requires	2013-01-07 01:37:14 +00:00
HexagonTargetObjectFile.cpp	Hexagon: Fix Small Data support to handle -G 0 correctly.	2013-05-07 19:53:00 +00:00
HexagonTargetObjectFile.h	Hexagon: Fix Small Data support to handle -G 0 correctly.	2013-05-07 19:53:00 +00:00
HexagonVarargsCallingConvention.h	Move TargetData to DataLayout.	2012-10-08 16:38:25 +00:00
HexagonVLIWPacketizer.cpp	Hexagon: Make helper functions static.	2013-05-23 15:43:11 +00:00
LLVMBuild.txt
Makefile