[all-commits] [llvm/llvm-project] 863463: RegAllocFast: Stop reading uninitalized memory

[Benjamin Kramer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8634635d689c5a7adfb19cde4a313d7c02e95194
      https://github.com/llvm/llvm-project/commit/8634635d689c5a7adfb19cde4a313d7c02e95194
  Author: Benjamin Kramer <benny.kra at googlemail.com>
  Date:   2025-02-26 (Wed, 26 Feb 2025)

  Changed paths:
    M llvm/lib/CodeGen/RegAllocFast.cpp

  Log Message:
  -----------
  RegAllocFast: Stop reading uninitalized memory

Found by msan.
==8138==WARNING: MemorySanitizer: use-of-uninitialized-value
    #0 0x559016395beb in allocVirtRegUndef llvm/lib/CodeGen/RegAllocFast.cpp:1010:6



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