[all-commits] [llvm/llvm-project] f5b334: [InsertCodePrefetch, X86] Prevent duplicate prefetc...

[Rahman Lavaee via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f5b334a0538312e15b04712a400866898ef93676
      https://github.com/llvm/llvm-project/commit/f5b334a0538312e15b04712a400866898ef93676
  Author: Rahman Lavaee <rahmanl at google.com>
  Date:   2026-05-07 (Thu, 07 May 2026)

  Changed paths:
    M llvm/lib/CodeGen/InsertCodePrefetch.cpp
    M llvm/test/CodeGen/X86/basic-block-sections-code-prefetch.ll

  Log Message:
  -----------
  [InsertCodePrefetch,X86] Prevent duplicate prefetch fallback symbols (#195348)

When multiple prefetch hints target the same external symbol, only the
first one should provide the weak fallback definition. This avoids
multiple definitions of the same symbol in the generated assembly.



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