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interpret: fix CheckedBinOp behavior when overflow checking is disabled

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This commit is contained in:
Ralf Jung 2022-07-04 08:57:10 -04:00
parent e1d1848cc6
commit 6f01ff61b3
3 changed files with 14 additions and 2 deletions
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4
compiler/rustc_const_eval/src/interpret/step.rs
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@ -185,7 +185,9 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
let left = self.read_immediate(&self.eval_operand(left, None)?)?;
let layout = binop_right_homogeneous(bin_op).then_some(left.layout);
let right = self.read_immediate(&self.eval_operand(right, layout)?)?;
self.binop_with_overflow(bin_op, &left, &right, &dest)?;
self.binop_with_overflow(
bin_op, /*force_overflow_checks*/ false, &left, &right, &dest,
)?;
}
UnaryOp(un_op, ref operand) => {