[all-commits] [llvm/llvm-project] ec3e0a: Revert "[CodeGenPrepare] Convert `ctpop(X) ==/!= 1...

Yingwei Zheng via All-commits all-commits at lists.llvm.org
Thu Oct 10 20:08:28 PDT 2024


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ec3e0a5900894c82e1763aa8597f47111edf6246
      https://github.com/llvm/llvm-project/commit/ec3e0a5900894c82e1763aa8597f47111edf6246
  Author: Yingwei Zheng <dtcxzyw2333 at gmail.com>
  Date:   2024-10-11 (Fri, 11 Oct 2024)

  Changed paths:
    M llvm/lib/CodeGen/CodeGenPrepare.cpp
    M llvm/test/CodeGen/AArch64/arm64-popcnt.ll
    M llvm/test/CodeGen/RISCV/rv32zbb.ll
    M llvm/test/CodeGen/RISCV/rv64zbb.ll
    M llvm/test/CodeGen/X86/ispow2.ll
    M llvm/test/CodeGen/X86/known-never-zero.ll

  Log Message:
  -----------
  Revert "[CodeGenPrepare] Convert `ctpop(X) ==/!= 1` into `ctpop(X) u</u> 2/1`" (#111932)

Reverts llvm/llvm-project#111284 to fix clang stage2 builds.
Investigating...

Failed buildbots:
https://lab.llvm.org/buildbot/#/builders/76/builds/3576
https://lab.llvm.org/buildbot/#/builders/168/builds/4308
https://lab.llvm.org/buildbot/#/builders/127/builds/1087



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