llvm-project

History

[AggressiveInstcombine] Fold away shift in or reduction chain. (#137875 )

If we have `icmp eq or(a, shl(b)), 0` then the shift can be removed so
long as it is nuw or nsw. It is still comparing that some bits are
non-zero.
https://alive2.llvm.org/ce/z/nhrBVX.

This is also true of ne, and true for longer or chains.

2025-05-13 10:33:38 +01:00

AggressiveInstCombine.cpp

[AggressiveInstcombine] Fold away shift in or reduction chain. (#137875 )

2025-05-13 10:33:38 +01:00

AggressiveInstCombineInternal.h

[NFC] Eliminate top-level "using namespace" from some headers. (#102751 )

2024-08-11 13:10:48 -07:00

CMakeLists.txt

…

TruncInstCombine.cpp

[Transforms] Use llvm::append_range (NFC) (#133607 )

2025-03-29 18:57:50 -07:00