chenglin.bi 286198ff04 [InstCombine] Optimize lshr+shl+and conversion pattern ...

if `C1` and `C3` are pow2 and `Log2(C3) >= C2`:
    ((C1 >> X) << C2) & C3 -> X == (Log2(C1)+C2-Log2(C3)) ? C3 : 0
https://alive2.llvm.org/ce/z/zvrkKF

Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D127469

2022-06-14 11:06:10 +08:00

..

CMakeLists.txt

…

InstCombineAddSub.cpp

[NFC] format InstructionSimplify & lowerCaseFunctionNames

2022-06-09 16:10:08 +02:00

InstCombineAndOrXor.cpp

[InstCombine] Optimize lshr+shl+and conversion pattern

2022-06-14 11:06:10 +08:00

InstCombineAtomicRMW.cpp

Cleanup includes: Transform/Scalar

2022-03-03 07:56:34 +01:00

InstCombineCalls.cpp

[NFC][Alignment] Simplify code

2022-06-10 15:25:28 +00:00

InstCombineCasts.cpp

[InstCombine] decomposeSimpleLinearExpr should bail out on negative operands.

2022-06-08 00:57:25 +00:00

InstCombineCompares.cpp

[NFC] format InstructionSimplify & lowerCaseFunctionNames

2022-06-09 16:10:08 +02:00

InstCombineInternal.h

[InstCombine] switch synthetic unreachable to use undef instead of poison (NFC)

2022-06-10 21:54:09 +01:00

InstCombineLoadStoreAlloca.cpp

[APInt] Remove all uses of zextOrSelf, sextOrSelf and truncOrSelf

2022-05-19 11:23:13 +01:00

InstCombineMulDivRem.cpp

[NFC] format InstructionSimplify & lowerCaseFunctionNames

2022-06-09 16:10:08 +02:00

InstCombineNegator.cpp

[InstCombine] Fold sub(Y,and(lshr(X,C),1)) --> add(ashr(shl(X,(BW-1)-C),BW-1),Y) (PR53610)

2022-02-15 13:24:20 +00:00

InstCombinePHI.cpp

[InstCombine] Don't slice up PHIs when pred BB has catchswitch

2022-06-13 18:32:09 -07:00

InstCombineSelect.cpp

[NFC][InstCombine] Refactor InstCombinerImpl::foldSelectIntoOp

2022-06-13 10:37:07 +01:00

InstCombineShifts.cpp

[NFC] format InstructionSimplify & lowerCaseFunctionNames

2022-06-09 16:10:08 +02:00

InstCombineSimplifyDemanded.cpp

[InstCombine] [InstCombine] reduce left-shift-of-right-shifted constant via demanded bits

2022-06-07 18:43:27 -04:00

InstCombineVectorOps.cpp

[NFC] format InstructionSimplify & lowerCaseFunctionNames

2022-06-09 16:10:08 +02:00

InstructionCombining.cpp

[InstCombine] Don't push operation across loop phi

2022-06-13 10:48:09 +02:00