[all-commits] [llvm/llvm-project] 157943: [InstCombine] Fold copysign(floor(fabs(X)), X) to ...

Aayush Shrivastava via All-commits all-commits at lists.llvm.org
Wed Jun 10 13:20:49 PDT 2026


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1579432afdcd14bc4031ad0eff5fea42367c0523
      https://github.com/llvm/llvm-project/commit/1579432afdcd14bc4031ad0eff5fea42367c0523
  Author: Aayush Shrivastava <iamaayushrivastava at gmail.com>
  Date:   2026-06-10 (Wed, 10 Jun 2026)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
    M llvm/test/Transforms/InstCombine/copysign.ll

  Log Message:
  -----------
  [InstCombine] Fold copysign(floor(fabs(X)), X) to trunc(X) (#200836)

Fixes #200519.

Adds an InstCombine fold for the pattern `copysign(floor(fabs(X)), X)
--> trunc(X)`.



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