[all-commits] [llvm/llvm-project] 5beabb: [LTO] Preserve module inline asm target properties...

[Alexander Richardson via All-commits]

  Branch: refs/heads/users/arichardson/lto-preserve-module-inline-asm-target-properties-for-lto
  Home:   https://github.com/llvm/llvm-project
  Commit: 5beabb0797fe20ea16eccb8f444d04eaac7dc734
      https://github.com/llvm/llvm-project/commit/5beabb0797fe20ea16eccb8f444d04eaac7dc734
  Author: Alex Richardson <alexrichardson at google.com>
  Date:   2026-09-21 (Mon, 21 Sep 2026)

  Changed paths:
    M cross-project-tests/riscv/lto-inline-asm-abi.c
    M llvm/lib/LTO/LTO.cpp
    M llvm/lib/Linker/IRMover.cpp
    M llvm/test/LTO/RISCV/module-asm.ll

  Log Message:
  -----------
  [LTO] Preserve module inline asm target properties for .lto_discard and symvers

Previously, LTO::addRegularLTO() and IRLinker::run() called
prependModuleInlineAsm() and appendModuleInlineAsm() with a plain string when
synthesizing `.lto_discard` and imported `.symver` directives, creating a new
GlobalAsmFragment with empty TargetCPU and TargetFeatures instead of preserving
the existing module inline asm's properties. Copy the front fragment's Props so
these synthesized directives are merged into the module's inline asm with the
same target features.

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