[llvm] [InstCombine] Add assume-based optimizations for equality and AMDGPU ballot patterns (PR #160670)
Jay Foad via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 6 02:37:14 PDT 2025
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@@ -3540,6 +3540,79 @@ Instruction *InstCombinerImpl::visitCallInst(CallInst &CI) {
}
}
+ // Basic assume equality optimization: assume(x == c) -> replace dominated uses of x with c
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jayfoad wrote:
Of course uses of x are dominated by the definition of x. This comment refers to uses of x dominated by the "assume".
https://github.com/llvm/llvm-project/pull/160670
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