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use a better way to get at the type parameter

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This commit is contained in:
Ralf Jung 2018-12-27 14:25:05 +01:00
parent fff905bc69
commit c118b17953
1 changed files with 1 additions and 6 deletions
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7
src/librustc_codegen_ssa/mir/block.rs
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@ -502,12 +502,7 @@ impl<'a, 'tcx: 'a, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
// emit a panic or a NOP for `panic_if_uninhabited`
if intrinsic == Some("panic_if_uninhabited") {
let ty = match callee.layout.ty.sty {
ty::FnDef(_, substs) => {
substs.type_at(0)
}
_ => bug!("{} is not callable as intrinsic", callee.layout.ty)
};
let ty = instance.unwrap().substs.type_at(0);
let layout = bx.layout_of(ty);
if layout.abi.is_uninhabited() {
let loc = bx.sess().source_map().lookup_char_pos(span.lo());