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show supported register classes

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in inline assembly, show the supported register classes when an invalid one is found
This commit is contained in:
Folkert de Vries
2025-01-29 11:57:37 +01:00
parent cf577f34c4
commit fbd30ea35f
7 changed files with 23 additions and 8 deletions
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9
compiler/rustc_ast_lowering/src/asm.rs
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@@ -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
},