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397c2693fa
Work around an issue in LLVM's register allocator, which can cause slightly different i386 object files, when produced by a native or cross build of clang. This adds another volatile qualifier to a float variable declaration in the weightCalcHelper() function, which otherwise produces slightly different float results on amd64 and i386 hosts. In turn, this can lead to different (but equivalent) register choices, and thus non-identical assembly code. See https://github.com/llvm/llvm-project/issues/99396 for more details. Note this is a temporary fix, meant to merge in time for 13.4. As soon as upstream has a permanent solution we will import that. PR: 276961 Reported by: cperciva MFC after: 3 days |
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