[all-commits] [llvm/llvm-project] f5f6af: [InstrRef] Preserve debug instr num in aarch64-con...

[Shubham Sandeep Rastogi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f5f6af8e7c0168327015717fc0b452f6152319af
      https://github.com/llvm/llvm-project/commit/f5f6af8e7c0168327015717fc0b452f6152319af
  Author: Shubham Sandeep Rastogi <srastogi22 at apple.com>
  Date:   2025-03-20 (Thu, 20 Mar 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64CondBrTuning.cpp
    A llvm/test/CodeGen/AArch64/cond-br-tuning-instr-ref.mir

  Log Message:
  -----------
  [InstrRef] Preserve debug instr num in aarch64-cond-br-tuning. (#132081)

The aarch64-cond-br-tuning pass transforms a CBZX instruction into a
conditional branch (B.cond). One of the by products of the
transformation is that the source instruction of the CBZX, which is an
ANDXri instruction, gets transformed into a ANDSXri instruction, however
this transformation doesn't preserve it's debug instruction number.

This patch fixes that issue.



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