[llvm-bugs] [Bug 51664] New: Cherry-pick ArgPromotion addition in NewPM LTO pipeline for 13.x

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=51664

            Bug ID: 51664
           Summary: Cherry-pick ArgPromotion addition in NewPM LTO
                    pipeline for 13.x
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Interprocedural Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: nikita.ppv at gmail.com
                CC: llvm-bugs at lists.llvm.org
            Blocks: 51236

Please cherry-pick
https://github.com/llvm/llvm-project/commit/b28c3b9d9f4292d7779a0e2661d308f1230c6ecd,
which fixes a parity issue between the LegacyPM and NewPM LTO pipelines.

This addresses code-size regressions observed when trying to switch rustc to
the new pass manager.


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=51236
[Bug 51236] [meta] 13.0.0 Release Blockers
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