Craig Topper 0229da8f07 [X86] Use GetDemandedBits to simplify the operands of PMULDQ/PMULUDQ. ...

This is an alternative to what I attempted in D56057.

GetDemandedBits is a special version of SimplifyDemandedBits that allows simplifications even when the operand has other uses. GetDemandedBits will only do simplifications that allow a node to be bypassed. It won't create new nodes or alter any of the other users.

I had to add support for bypassing SIGN_EXTEND_INREG to GetDemandedBits.

Based on a patch that Simon Pilgrim sent me in email.

Fixes PR40142.

llvm-svn: 350059

2018-12-24 19:40:20 +00:00

..

CMakeLists.txt

…

DAGCombiner.cpp

[DAGCombiner] limit shuffle to extend transform (PR40146)

2018-12-23 20:48:31 +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

[DebugInfo] Convert intrinsic llvm.dbg.label to MachineInstr.

2018-05-09 02:41:08 +00:00

LegalizeDAG.cpp

[TargetLowering] Add ISD::ROTL/ROTR vector expansion

2018-12-13 11:20:48 +00:00

LegalizeFloatTypes.cpp

[NFC] Rename minnan and maxnan to minimum and maximum

2018-10-24 22:49:55 +00:00

LegalizeIntegerTypes.cpp

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

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

LegalizeTypes.cpp

[DAG] Don't map a TableId to itself in the ReplacedValues map

2018-06-20 16:06:09 +00:00

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

[TargetLowering] Add ISD::ROTL/ROTR vector expansion

2018-12-13 11:20:48 +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

[X86] Use GetDemandedBits to simplify the operands of PMULDQ/PMULUDQ.

2018-12-24 19:40:20 +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

[SelectionDAGBuilder] Use ::precise LocationSizes; NFC

2018-12-24 05:34:21 +00:00

SelectionDAGBuilder.h

[IR] Add a dedicated FNeg IR Instruction

2018-11-13 18:15:47 +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

Rename DEBUG macro to LLVM_DEBUG.

2018-05-14 12:53:11 +00:00

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

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

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