Landing: b709aa449e06

Project / Subsystem

gcc / gccrs

Date

2026-08-15

Author

Owen Avery

Commit

b709aa449e06ffbdc12eb4ba6266ef71a3adef9f

Source

github

Perf win

No

Breaking

No

All attributes

project
gcc
subsystem
gccrs
patch_id
—
commit_hash
b709aa449e06ffbdc12eb4ba6266ef71a3adef9f
source_type
github
headline
Handle more `llvm_asm` usages in GCC Rust
tldr
GCC Rust compiler improves handling of LLVM inline assembly constraints and syntax.
author
Owen Avery
outcome
committed
performance_win
false
breaking_change
false
series_id
—
series_parts
[]
tags
  • • gccrs
  • • rust
  • • llvm
  • • assembly
discussion_id_link
—
bugzilla_pr
—
date
2026-08-15T00:00:00.000Z

GCC Rust (gccrs) has been enhanced to better support llvm_asm (inline assembly). This update refines how GCC Rust handles various LLVM-specific constraints, such as =*m, and adapts to changes in template string usage, moving from multiple strings to a single one. The changes aim to safely handle or reject most usages of LLVM inline assembly, minimizing future compatibility issues.