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Remove special case in rvalue codegen.

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This commit is contained in:
Camille GILLOT 2023-02-11 21:01:11 +00:00
parent e9c73ea502
commit a5769193d1
1 changed files with 0 additions and 12 deletions
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12
compiler/rustc_codegen_ssa/src/mir/rvalue.rs
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@ -652,18 +652,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
rhs: Bx::Value,
input_ty: Ty<'tcx>,
) -> OperandValue<Bx::Value> {
// This case can currently arise only from functions marked
// with #[rustc_inherit_overflow_checks] and inlined from
// another crate (mostly core::num generic/#[inline] fns),
// while the current crate doesn't use overflow checks.
//
// As an optimization, we emit an unchecked binop when overflow checks are disabled,
// as the overflow flag would be ignored anyway.
if !bx.cx().check_overflow() {
let val = self.codegen_scalar_binop(bx, op, lhs, rhs, input_ty);
return OperandValue::Pair(val, bx.cx().const_bool(false));
}
let (val, of) = match op {
// These are checked using intrinsics
mir::BinOp::Add | mir::BinOp::Sub | mir::BinOp::Mul => {