bjoernager/rust
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Set capacity of the string passed to push_item_name.

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Other callsites already do this, but these two were missed. This avoids
some allocations.
This commit is contained in:
Nicholas Nethercote 2023-06-28 13:56:53 +10:00
parent f2d863fa75
commit d20b1a8f6b
2 changed files with 2 additions and 2 deletions
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2
compiler/rustc_codegen_llvm/src/debuginfo/mod.rs
View file

@ -331,7 +331,7 @@ impl<'ll, 'tcx> DebugInfoMethods<'tcx> for CodegenCx<'ll, 'tcx> {
llvm::LLVMRustDIBuilderCreateSubroutineType(DIB(self), fn_signature)
};
let mut name = String::new();
let mut name = String::with_capacity(64);
type_names::push_item_name(tcx, def_id, false, &mut name);
// Find the enclosing function, in case this is a closure.

2
compiler/rustc_codegen_llvm/src/debuginfo/namespace.rs
View file

@ -28,7 +28,7 @@ pub fn item_namespace<'ll>(cx: &CodegenCx<'ll, '_>, def_id: DefId) -> &'ll DISco
.map(|parent| item_namespace(cx, DefId { krate: def_id.krate, index: parent }));
let namespace_name_string = {
let mut output = String::new();
let mut output = String::with_capacity(64);
type_names::push_item_name(cx.tcx, def_id, false, &mut output);
output
};