feat(lint): flag writes to the platform-reserved register

2026-08-30 21:42:12 +02:00
parent 62f6fb4faf
commit 75bd83fd52
4 changed files with 126 additions and 0 deletions
@@ -84,6 +84,10 @@ Unreleased changes on the `development` branch.
 - **Lint: `unencodable-instruction` rule.**  Flags mnemonics the
  architecture table knows but the encoder cannot yet emit, at edit time
  instead of at assembly time.
+- **Lint: `reserved-register-write` rule.**  Flags writes to arm64 R18,
+  the platform-reserved register the ABI checks cannot observe at runtime
+  and the Go assembler cannot even spell.  Reads and macro-using files
+  are exempt.
 - **DWARF5 debug sections in ELF output.**  All four ELF emitters now emit
  `.debug_abbrev`, `.debug_info`, `.debug_line`, and `.debug_line_str`
  sections, enabling `addr2line` and GDB/LLDB source-level debugging, and