[all-commits] [llvm/llvm-project] 4b22bc: [InstCombine] Enable select freeze poison folding ...
John McIver via All-commits
all-commits at lists.llvm.org
Mon Mar 17 21:20:03 PDT 2025
Branch: refs/heads/users/jmciver/select-freeze-poison-2
Home: https://github.com/llvm/llvm-project
Commit: 4b22bc229b2394ce841489113296cd84643c3c5a
https://github.com/llvm/llvm-project/commit/4b22bc229b2394ce841489113296cd84643c3c5a
Author: John McIver <john.mciver.iii at gmail.com>
Date: 2025-03-17 (Mon, 17 Mar 2025)
Changed paths:
M llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
M llvm/test/Transforms/InstCombine/freeze-phi.ll
M llvm/test/Transforms/InstCombine/freeze.ll
M llvm/test/Transforms/InstCombine/select.ll
Log Message:
-----------
[InstCombine] Enable select freeze poison folding when storing value
The non-freeze poison argument to select can be one of the following: global,
constant, and noundef arguments.
Alive2 test validation:
- https://alive2.llvm.org/ce/z/jbtCS6
- https://alive2.llvm.org/ce/z/YFA-5S
Refactor replacement of poison elements in constant vectors to use the first
non-poison element.
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