[all-commits] [llvm/llvm-project] e3b62f: [Reassociate][DebugInfo] Salvage debug info before...

[Shivam Kunwar via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e3b62ffcd8592cf234174057b4581adb1eecbf9c
      https://github.com/llvm/llvm-project/commit/e3b62ffcd8592cf234174057b4581adb1eecbf9c
  Author: Shivam Kunwar <75530356+phyBrackets at users.noreply.github.com>
  Date:   2026-03-05 (Thu, 05 Mar 2026)

  Changed paths:
    M llvm/lib/Transforms/Scalar/Reassociate.cpp
    A llvm/test/Transforms/Reassociate/reassociate-decrement-dbgvalue.ll
    R llvm/test/Transforms/Reassociate/reassociate_dbgvalue_discard.ll
    A llvm/test/Transforms/Reassociate/reassociate_dbgvalue_salvage.ll

  Log Message:
  -----------
  [Reassociate][DebugInfo] Salvage debug info before rewriting expression (#182730)

When RewriteExprTree modifies instruction operands, call
`salvageDebugInfo()` before `setOperand()` so debug value expressions
are rewritten while original operands are still intact. This preserves
variable accessibility in debuggers instead of dropping values to
poison.

Fixes #60532
Fixes #61272



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