[all-commits] [llvm/llvm-project] 6efcb2: [HWASan] Fix UB in tag-bits mask shift (#202269)

[Maosu Zhao via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6efcb27a7436004d7b78473c467a7e00d83deb4a
      https://github.com/llvm/llvm-project/commit/6efcb27a7436004d7b78473c467a7e00d83deb4a
  Author: Maosu Zhao <maosu.zhao at intel.com>
  Date:   2026-06-09 (Tue, 09 Jun 2026)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp

  Log Message:
  -----------
  [HWASan] Fix UB in tag-bits mask shift (#202269)

`TagMaskByte &= (1 << ClTagBits) - 1` shifts an `int` literal, which is
undefined behavior for `ClTagBits >= 32`.



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