[all-commits] [llvm/llvm-project] d2fe88: [KeyInstr] Don't propagate source atoms to new unc...

[Orlando Cazalet-Hyams via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d2fe8896766800a97462599fc7fb557c8d424fa4
      https://github.com/llvm/llvm-project/commit/d2fe8896766800a97462599fc7fb557c8d424fa4
  Author: Orlando Cazalet-Hyams <orlando.hyams at sony.com>
  Date:   2025-05-08 (Thu, 08 May 2025)

  Changed paths:
    M llvm/lib/IR/BasicBlock.cpp
    M llvm/unittests/IR/BasicBlockDbgInfoTest.cpp

  Log Message:
  -----------
  [KeyInstr] Don't propagate source atoms to new uncond br in splitBasicBlock (#139070)

splitBasicBlock inserts an unconditional branch in the "before" block to
the "after" block. It copies the DebugLoc from the split point. Prevent
it copying the source location atom.

Add unittest.

RFC:
https://discourse.llvm.org/t/rfc-improving-is-stmt-placement-for-better-interactive-debugging/82668



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