bjoernager/rust
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Avoid unnecessary string interning for const_str

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bjorn3 2022-06-28 17:34:24 +00:00
parent 94e93749ab
commit f6484fa9b5
8 changed files with 45 additions and 34 deletions
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5
compiler/rustc_codegen_ssa/src/mir/block.rs
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@ -481,8 +481,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
(LangItem::PanicBoundsCheck, vec![index, len, location])
}
_ => {
let msg_str = Symbol::intern(msg.description());
let msg = bx.const_str(msg_str);
let msg = bx.const_str(msg.description());
// It's `pub fn panic(expr: &str)`, with the wide reference being passed
// as two arguments, and `#[track_caller]` adds an implicit third argument.
(LangItem::Panic, vec![msg.0, msg.1, location])
@ -563,7 +562,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
}
})
});
let msg = bx.const_str(Symbol::intern(&msg_str));
let msg = bx.const_str(&msg_str);
let location = self.get_caller_location(bx, source_info).immediate();
// Obtain the panic entry point.