Noah Goldstein 42e11a6ea3 Add transform (and/or (icmp eq/ne (A, C)), (icmp eq/ne (A, -C))) -> (icmp eq/ne (ABS A), ABS(C)) ...

This can be beneficial if there is a fast `ABS` (For example with X86
`vpabs`) or if there is a dominating ABS(A) in the `DAG`.

Note `C` is constant so `ABS(C)` is just a constant.

Alive2 Links:
EQ: https://alive2.llvm.org/ce/z/829F-c
NE: https://alive2.llvm.org/ce/z/tsS8bU

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D142601

2023-02-14 18:59:04 -06:00

..

CMakeLists.txt

[Support] Move TargetParsers to new component

2022-12-20 11:05:50 +00:00

DAGCombiner.cpp

Add transform (and/or (icmp eq/ne (A, C)), (icmp eq/ne (A, -C))) -> (icmp eq/ne (ABS A), ABS(C))

2023-02-14 18:59:04 -06:00

FastISel.cpp

[MC] Define and use MCInstrDesc implicit_uses and implicit_defs. NFC.

2023-01-23 14:44:58 +00:00

FunctionLoweringInfo.cpp

[SelectionDAG] Do not second-guess alignment for alloca

2023-02-09 18:45:20 +03:00

InstrEmitter.cpp

Use ArrayRef instead of raw pointers. NFC

2023-02-02 12:53:49 +07:00

InstrEmitter.h

[DebugInfo] Store instr-ref mode of MachineFunction in member

2023-01-20 14:47:11 +00:00

LegalizeDAG.cpp

[CodeGen] Trivial simplification of some getRegisterType calls. NFC.

2023-02-14 16:31:46 +00:00

LegalizeFloatTypes.cpp

[SelectionDAG] Rewrite bfloat16 softening to use the "half promotion" path

2022-09-06 11:54:34 +02:00

LegalizeIntegerTypes.cpp

[Codegen][LegalizeIntegerTypes] New legalization strategy for scalar shifts: shift through stack

2023-01-14 19:12:18 +03:00

LegalizeTypes.cpp

[CodeGen] Add standard print/debug utilities to EVT

2023-02-07 08:38:44 -08:00

LegalizeTypes.h

[Codegen][LegalizeIntegerTypes] New legalization strategy for scalar shifts: shift through stack

2023-01-14 19:12:18 +03:00

LegalizeTypesGeneric.cpp

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

2023-01-05 14:11:08 +01:00

LegalizeVectorOps.cpp

[VP][RISCV] Add vp.ctlz/cttz and RISC-V support.

2023-01-04 15:15:01 +08:00

LegalizeVectorTypes.cpp

[SelectionDAG] Correctly widen bitcast of scalar to vector for big endian

2023-02-02 12:01:14 -06:00

ResourcePriorityQueue.cpp

Remove unneeded cl::ZeroOrMore for cl::opt/cl::list options

2022-06-05 00:31:44 -07:00

ScheduleDAGFast.cpp

[MC] Define and use MCInstrDesc implicit_uses and implicit_defs. NFC.

2023-01-23 14:44:58 +00:00

ScheduleDAGRRList.cpp

[MC] Define and use MCInstrDesc implicit_uses and implicit_defs. NFC.

2023-01-23 14:44:58 +00:00

ScheduleDAGSDNodes.cpp

[MC] Define and use MCInstrDesc implicit_uses and implicit_defs. NFC.

2023-01-23 14:44:58 +00:00

ScheduleDAGSDNodes.h

[CodeGen] Use default member initialization (NFC)

2022-01-30 12:32:51 -08:00

ScheduleDAGVLIW.cpp

Cleanup includes: DebugInfo & CodeGen

2022-03-12 17:26:40 +01:00

SDNodeDbgValue.h

Cleanup includes: DebugInfo & CodeGen

2022-03-12 17:26:40 +01:00

SelectionDAG.cpp

[DAG] Fold freeze(concat_vectors(x,y,...)) -> concat_vectors(freeze(x),freeze(y),...)

2023-02-08 20:26:43 +00:00

SelectionDAGAddressAnalysis.cpp

[CodeGen] llvm::Optional => std::optional

2022-12-13 09:06:36 +00:00

SelectionDAGBuilder.cpp

[NFC][TargetParser] Remove llvm/ADT/Triple.h

2023-02-07 12:39:46 +00:00

SelectionDAGBuilder.h

[Assignment Tracking][Analysis] Add analysis pass

2022-12-09 16:17:37 +00:00

SelectionDAGDumper.cpp

[CodeGen] Add standard print/debug utilities to EVT

2023-02-07 08:38:44 -08:00

SelectionDAGISel.cpp

[CodeGen] Add standard print/debug utilities to MVT

2023-02-07 10:50:14 -08:00

SelectionDAGPrinter.cpp

Revert "[CodeGen] Place SDNode debug ID declaration under appropriate #if"

2022-04-06 20:32:53 +03:00

SelectionDAGTargetInfo.cpp

…

StatepointLowering.cpp

[StatepointLowering] Move statepoint correctness checks to Verifier. NFC.

2023-01-18 18:14:58 +03:00

StatepointLowering.h

…

TargetLowering.cpp

Use llvm::bit_cast (NFC)

2023-02-14 01:22:12 -08:00