diff options
Diffstat (limited to 'compiler/rustc_ast_lowering/src/asm.rs')
| -rw-r--r-- | compiler/rustc_ast_lowering/src/asm.rs | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/compiler/rustc_ast_lowering/src/asm.rs b/compiler/rustc_ast_lowering/src/asm.rs index 2f1f1269ece..96c230ec243 100644 --- a/compiler/rustc_ast_lowering/src/asm.rs +++ b/compiler/rustc_ast_lowering/src/asm.rs @@ -152,11 +152,16 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { InlineAsmRegOrRegClass::RegClass(reg_class) => { asm::InlineAsmRegOrRegClass::RegClass(if let Some(asm_arch) = asm_arch { asm::InlineAsmRegClass::parse(asm_arch, reg_class).unwrap_or_else( - |error| { + |supported_register_classes| { + let mut register_classes = + format!("`{}`", supported_register_classes[0]); + for m in &supported_register_classes[1..] { + let _ = write!(register_classes, ", `{m}`"); + } self.dcx().emit_err(InvalidRegisterClass { op_span: *op_sp, reg_class, - error, + supported_register_classes: register_classes, }); asm::InlineAsmRegClass::Err }, |