llvm-project

60d0bc1f - Propagate DebugLocs on phis in BreakCriticalEdges (#133492)

Propagate DebugLocs on phis in BreakCriticalEdges (#133492) The pull request discusses whether this change is needed or not. We leant towards "it can't hurt" on the basis that it's at worst slightly unecessary (but not incorret). The motivation for the patch came from reviewing code duplication sites to update for Key Instructions, finding this, trying to generate a test case and seeing the DebugLocs aren't propagated.