Sanjay Patel 57d459309d [SDAG][x86] check for relaxed math when matching an FP reduction ...

If the last step in an FP add reduction allows reassociation and doesn't care
about -0.0, then we are free to recognize that computation as a reduction
that may reorder the intermediate steps.

This is requested directly by PR42705:
https://bugs.llvm.org/show_bug.cgi?id=42705
and solves PR42947 (if horizontal math instructions are actually faster than
the alternative):
https://bugs.llvm.org/show_bug.cgi?id=42947

Differential Revision: https://reviews.llvm.org/D66236

llvm-svn: 368995

2019-08-15 12:43:15 +00:00

..

CMakeLists.txt

…

DAGCombiner.cpp

[DAGCombiner] exclude x*2.0 from normal negation profitability rules

2019-08-09 21:37:32 +00:00

FastISel.cpp

Finish moving TargetRegisterInfo::isVirtualRegister() and friends to llvm::Register as started by r367614. NFC

2019-08-01 23:27:28 +00:00

FunctionLoweringInfo.cpp

Finish moving TargetRegisterInfo::isVirtualRegister() and friends to llvm::Register as started by r367614. NFC

2019-08-01 23:27:28 +00:00

InstrEmitter.cpp

CodeGen: Migration to using Register

2019-08-06 03:59:31 +00:00

InstrEmitter.h

[SelectionDAG] Enhance the simplification of copyto from implicit-def.

2019-05-27 18:26:29 +00:00

LegalizeDAG.cpp

[Strict FP] Allow custom operation actions

2019-08-06 10:43:13 +00:00

LegalizeFloatTypes.cpp

AMDGPU: Correct behavior of f16 buffer loads

2019-08-05 15:59:07 +00:00

LegalizeIntegerTypes.cpp

[SelectionDAG] Extend base addressing modes supported by MGATHER/MSCATTER

2019-08-06 09:46:13 +00:00

LegalizeTypes.cpp

Propagate fmf for setcc in SDAG for select folds

2019-06-03 21:53:26 +00:00

LegalizeTypes.h

[SelectionDAG] Widen vector results of SMULFIX/UMULFIX/SMULFIXSAT

2019-08-11 19:27:06 +00:00

LegalizeTypesGeneric.cpp

[LegalizeTypes] Remove SplitVSETCC helper and just call SplitVecRes_SETCC.

2019-08-08 21:13:58 +00:00

LegalizeVectorOps.cpp

[SelectionDAG] Widen vector results of SMULFIX/UMULFIX/SMULFIXSAT

2019-08-11 19:27:06 +00:00

LegalizeVectorTypes.cpp

[SelectionDAG] Widen vector results of SMULFIX/UMULFIX/SMULFIXSAT

2019-08-11 19:27:06 +00:00

LLVMBuild.txt

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

ResourcePriorityQueue.cpp

Implementation of asm-goto support in LLVM

2019-02-08 20:48:56 +00:00

ScheduleDAGFast.cpp

Finish moving TargetRegisterInfo::isVirtualRegister() and friends to llvm::Register as started by r367614. NFC

2019-08-01 23:27:28 +00:00

ScheduleDAGRRList.cpp

Finish moving TargetRegisterInfo::isVirtualRegister() and friends to llvm::Register as started by r367614. NFC

2019-08-01 23:27:28 +00:00

ScheduleDAGSDNodes.cpp

Recommit "[MS] Emit S_HEAPALLOCSITE debug info in Selection DAG"

2019-08-07 22:49:40 +00:00

ScheduleDAGSDNodes.h

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

ScheduleDAGVLIW.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

SDNodeDbgValue.h

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

SelectionDAG.cpp

[SDAG][x86] check for relaxed math when matching an FP reduction

2019-08-15 12:43:15 +00:00

SelectionDAGAddressAnalysis.cpp

[DAGCombiner] Unify Lifetime and memory Op aliasing.

2019-03-27 14:14:46 +00:00

SelectionDAGBuilder.cpp

Add ptrmask intrinsic

2019-08-15 10:12:26 +00:00

SelectionDAGBuilder.h

Factor out SelectionDAG's switch analysis and lowering into a separate component.

2019-06-08 00:05:17 +00:00

SelectionDAGDumper.cpp

[CodeGen] Add lrint/llrint builtins

2019-05-28 20:47:44 +00:00

SelectionDAGISel.cpp

Finish moving TargetRegisterInfo::isVirtualRegister() and friends to llvm::Register as started by r367614. NFC

2019-08-01 23:27:28 +00:00

SelectionDAGPrinter.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

SelectionDAGTargetInfo.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

StatepointLowering.cpp

[Statepoints] Fix overalignment of loads in no-realign-stack functions

2019-08-02 20:17:37 +00:00

StatepointLowering.h

[FastISel] Fix crash for gc.relocate lowring

2019-04-05 05:41:08 +00:00

TargetLowering.cpp

[CodeGen][SelectionDAG] More efficient code for X % C == 0 (SREM case)

2019-08-13 14:57:37 +00:00