[all-commits] [llvm/llvm-project] 2484d4: [RISC-V] Update streamer ArchString in emitTargetF...

[Alexander Richardson via All-commits]

  Branch: refs/heads/users/arichardson/risc-v-update-streamer-archstring-in-emittargetfeaturepush
  Home:   https://github.com/llvm/llvm-project
  Commit: 2484d412a7f899deb8c555471a3c05172d4b39cd
      https://github.com/llvm/llvm-project/commit/2484d412a7f899deb8c555471a3c05172d4b39cd
  Author: Alex Richardson <alexrichardson at google.com>
  Date:   2026-09-21 (Mon, 21 Sep 2026)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVAsmPrinter.cpp
    M llvm/test/CodeGen/RISCV/module-asm-features.ll
    M llvm/test/CodeGen/RISCV/riscv-func-target-feature.ll

  Log Message:
  -----------
  [RISC-V] Update streamer ArchString in emitTargetFeaturePush()

Previously, RISCVAsmPrinter::emitTargetFeaturePush() only emitted `.option push`
and `.option arch` without updating the streamer's active ArchString. When
emitting an ELF object file directly (`-filetype=obj`),
RISCVTargetELFStreamer::emitDirectiveOptionArch() is a no-op while
emitTargetFeaturePop() resets ArchString back to the pushed ArchString, so
module-level inline assembly and functions with custom `target-features` failed
to emit updated `$x<arch>` mapping symbols.

Call RTS.setArchString() with the parsed ISA string in emitTargetFeaturePush()
so `-filetype=obj` records the active `$x<arch>` mapping symbol alongside
`.option arch`.

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