Sanjay Patel 0236c57181 [InstCombine] try to fold one-demanded-bit-of-multiply ...

This is a generalization of the icmp fold in D118061 (and that can be abandoned).
We're looking for a disguised form of "odd * odd must be odd".
Some Alive2 proofs to show correctness:
https://alive2.llvm.org/ce/z/60Y8hz
https://alive2.llvm.org/ce/z/HfAP6R

Differential Revision: https://reviews.llvm.org/D118539

2022-02-04 11:40:54 -05:00

..

CMakeLists.txt

…

InstCombineAddSub.cpp

Revert "Rename llvm::array_lengthof into llvm::size to match std::size from C++17"

2022-01-26 16:55:53 +01:00

InstCombineAndOrXor.cpp

[InstCombine] try to fold binop with phi operands

2022-01-22 15:00:06 -05:00

InstCombineAtomicRMW.cpp

…

InstCombineCalls.cpp

[InstCombine] Remove weaker fence adjacent to a stronger fence

2022-02-01 11:05:34 -08:00

InstCombineCasts.cpp

Tweak some uses of std::iota to skip initializing the underlying storage. NFCI.

2022-02-04 17:00:50 +01:00

InstCombineCompares.cpp

[InstCombine] Generalize and-reduce pattern to handle ne case as well as eq

2022-01-31 12:14:08 +07:00

InstCombineInternal.h

[InstCombine] Mark element type access as non-opaque (NFC)

2022-01-27 11:40:29 +01:00

InstCombineLoadStoreAlloca.cpp

[InstCombine] Avoid pointer element type access in PointerReplacer

2022-01-27 12:28:32 +01:00

InstCombineMulDivRem.cpp

[InstCombine] try to fold binop with phi operands

2022-01-22 15:00:06 -05:00

InstCombineNegator.cpp

[llvm][NFC] Inclusive language: Reword replace uses of sanity in llvm/lib/Transform comments and asserts

2021-11-23 13:22:55 -05:00

InstCombinePHI.cpp

[InstCombine] Do not combine atomic and non-atomic loads

2022-01-30 10:05:11 -05:00

InstCombineSelect.cpp

[IR] document and update ctlz/cttz intrinsics to optionally return poison rather than undef

2022-01-23 11:22:48 -05:00

InstCombineShifts.cpp

[InstCombine] try to fold binop with phi operands

2022-01-22 15:00:06 -05:00

InstCombineSimplifyDemanded.cpp

[InstCombine] try to fold one-demanded-bit-of-multiply

2022-02-04 11:40:54 -05:00

InstCombineVectorOps.cpp

[InstCombine] Use GEP type instead of pointee type

2021-12-28 14:57:43 +01:00

InstructionCombining.cpp

Cleanup header dependencies in LLVMCore

2022-02-02 06:54:20 +01:00