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no more codegen for miri_start_panic #69437

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Merged
merged 1 commit into from
Feb 25, 2020
Merged

no more codegen for miri_start_panic #69437

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7 changes: 2 additions & 5 deletions src/librustc_codegen_ssa/mir/block.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -515,12 +515,9 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
return;
}

// For normal codegen, this Miri-specific intrinsic is just a NOP.
// For normal codegen, this Miri-specific intrinsic should never occur.
if intrinsic == Some("miri_start_panic") {
let target = destination.as_ref().unwrap().1;
helper.maybe_sideeffect(self.mir, &mut bx, &[target]);
helper.funclet_br(self, &mut bx, target);
return;
bug!("`miri_start_panic` should never end up in compiled code");
}

// Emit a panic or a no-op for `panic_if_uninhabited`.
Expand Down