bjoernager/rust
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Stop implementing _with_overflow intrinsics in codegen backends.

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This commit is contained in:
Camille GILLOT 2023-02-18 22:06:29 +00:00
parent 7e795bdf03
commit 9f6c1df872
3 changed files with 0 additions and 50 deletions
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11
compiler/rustc_const_eval/src/interpret/intrinsics.rs
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@ -210,17 +210,6 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
let out_val = numeric_intrinsic(intrinsic_name, bits, kind);
self.write_scalar(out_val, dest)?;
}
sym::add_with_overflow | sym::sub_with_overflow | sym::mul_with_overflow => {
let lhs = self.read_immediate(&args[0])?;
let rhs = self.read_immediate(&args[1])?;
let bin_op = match intrinsic_name {
sym::add_with_overflow => BinOp::Add,
sym::sub_with_overflow => BinOp::Sub,
sym::mul_with_overflow => BinOp::Mul,
_ => bug!(),
};
self.binop_with_overflow(bin_op, &lhs, &rhs, dest)?;
}
sym::saturating_add | sym::saturating_sub => {
let l = self.read_immediate(&args[0])?;
let r = self.read_immediate(&args[1])?;