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Add codegen for global_asm! sym operands

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This commit is contained in:
Amanieu d'Antras 2022-03-01 00:53:25 +00:00
parent dc345d8bff
commit 547405e801
11 changed files with 137 additions and 22 deletions
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27
compiler/rustc_codegen_llvm/src/asm.rs
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@ -312,11 +312,11 @@ impl<'ll, 'tcx> AsmBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
}
}
impl AsmMethods for CodegenCx<'_, '_> {
impl<'tcx> AsmMethods<'tcx> for CodegenCx<'_, 'tcx> {
fn codegen_global_asm(
&self,
template: &[InlineAsmTemplatePiece],
operands: &[GlobalAsmOperandRef],
operands: &[GlobalAsmOperandRef<'tcx>],
options: InlineAsmOptions,
_line_spans: &[Span],
) {
@ -342,6 +342,29 @@ impl AsmMethods for CodegenCx<'_, '_> {
// here unlike normal inline assembly.
template_str.push_str(string);
}
GlobalAsmOperandRef::SymFn { instance } => {
let llval = self.get_fn(instance);
self.add_compiler_used_global(llval);
let symbol = llvm::build_string(|s| unsafe {
llvm::LLVMRustGetMangledName(llval, s);
})
.expect("symbol is not valid UTF-8");
template_str.push_str(&symbol);
}
GlobalAsmOperandRef::SymStatic { def_id } => {
let llval = self
.renamed_statics
.borrow()
.get(&def_id)
.copied()
.unwrap_or_else(|| self.get_static(def_id));
self.add_compiler_used_global(llval);
let symbol = llvm::build_string(|s| unsafe {
llvm::LLVMRustGetMangledName(llval, s);
})
.expect("symbol is not valid UTF-8");
template_str.push_str(&symbol);
}
}
}
}