Nikita Popov d3b86b79fa Reapply "[CodeGen][X86] Expand USUBSAT to UMAX+SUB, also for vectors" ...

Related to https://bugs.llvm.org/show_bug.cgi?id=40123.

Rather than scalarizing, expand a vector USUBSAT into UMAX+SUB,
which produces much better code for X86.

Reapplying with updated SLPVectorizer tests.

Differential Revision: https://reviews.llvm.org/D56636

llvm-svn: 351219

2019-01-15 18:43:41 +00:00

..

CMakeLists.txt

…

DAGCombiner.cpp

[DAGCombiner] reduce buildvec of zexted extracted element to shuffle

2019-01-15 16:11:05 +00:00

FastISel.cpp

FastIsel: take care to update iterators when removing instructions.

2018-12-17 17:25:53 +00:00

FunctionLoweringInfo.cpp

AMDGPU: Fix various issues around the VirtReg2Value mapping

2018-11-30 22:55:29 +00:00

InstrEmitter.cpp

[SDAG] Clarify the origin of chain in REG_SEQUENCE in comment, NFC

2018-12-17 20:30:20 +00:00

InstrEmitter.h

…

LegalizeDAG.cpp

[LegalizeDAG] Remove 'NeedInvert' code from expansion of BR_CC. Replace with an assert.

2019-01-13 19:33:30 +00:00

LegalizeFloatTypes.cpp

[Legalizer] Use correct ValueType of SELECT_CC node during Float promotion

2019-01-11 18:46:02 +00:00

LegalizeIntegerTypes.cpp

[X86] Rename overly verbose method; NFC

2019-01-13 16:41:26 +00:00

LegalizeTypes.cpp

…

LegalizeTypes.h

[Intrinsic] Signed Fixed Point Multiplication Intrinsic

2018-12-12 06:29:14 +00:00

LegalizeTypesGeneric.cpp

[LegalizeTypes] Fix bad indentation. NFC

2018-09-23 21:17:55 +00:00

LegalizeVectorOps.cpp

Reapply "[CodeGen][X86] Expand USUBSAT to UMAX+SUB, also for vectors"

2019-01-15 18:43:41 +00:00

LegalizeVectorTypes.cpp

[SelectionDAG][X86] Fix [US](ADD|SUB)SAT vector legalization, add tests

2018-12-18 13:22:53 +00:00

LLVMBuild.txt

…

ResourcePriorityQueue.cpp

…

ScheduleDAGFast.cpp

[DebugInfo] Emit undef DBG_VALUEs when SDNodes are optimised out

2018-12-10 11:20:47 +00:00

ScheduleDAGRRList.cpp

ScheduleDAG: Cleanup dumping code; NFC

2018-09-19 00:23:35 +00:00

ScheduleDAGSDNodes.cpp

[DebugInfo] Emit undef DBG_VALUEs when SDNodes are optimised out

2018-12-10 11:20:47 +00:00

ScheduleDAGSDNodes.h

ScheduleDAG: Cleanup dumping code; NFC

2018-09-19 00:23:35 +00:00

ScheduleDAGVLIW.cpp

ScheduleDAG: Cleanup dumping code; NFC

2018-09-19 00:23:35 +00:00

SDNodeDbgValue.h

[DebugInfo] Emit undef DBG_VALUEs when SDNodes are optimised out

2018-12-10 11:20:47 +00:00

SelectionDAG.cpp

[DAGCombiner] Enable sub saturation constant folding

2019-01-14 15:28:53 +00:00

SelectionDAGAddressAnalysis.cpp

[SelectionDAG] Teach BaseIndexOffset::match to unwrap the base after looking through an add/or

2018-11-26 20:16:33 +00:00

SelectionDAGBuilder.cpp

[SelectionDAG] Check membership of register in class for single

2019-01-15 17:09:23 +00:00

SelectionDAGBuilder.h

Reversing the commit in revision 350186. Revision causes regression in 4

2019-01-01 07:28:55 +00:00

SelectionDAGDumper.cpp

[Intrinsic] Signed Fixed Point Multiplication Intrinsic

2018-12-12 06:29:14 +00:00

SelectionDAGISel.cpp

[SelectionDAG] Always use the version of computeKnownBits that returns a value. NFCI.

2018-12-21 14:56:18 +00:00

SelectionDAGPrinter.cpp

…

SelectionDAGTargetInfo.cpp

…

StatepointLowering.cpp

[CodeGen] Prefer static frame index for STATEPOINT liveness args

2018-11-30 16:22:41 +00:00

StatepointLowering.h

…

TargetLowering.cpp

Reapply "[CodeGen][X86] Expand USUBSAT to UMAX+SUB, also for vectors"

2019-01-15 18:43:41 +00:00