bjoernager/rust
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Promote unchecked_add/sub/mul/shl/shr to mir::BinOp

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This commit is contained in:
Scott McMurray 2023-06-03 00:41:50 -07:00
parent 8d1fa473dd
commit 39788e07ba
36 changed files with 504 additions and 215 deletions
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9
compiler/rustc_codegen_cranelift/src/codegen_i128.rs
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@ -22,8 +22,8 @@ pub(crate) fn maybe_codegen<'tcx>(
match bin_op {
BinOp::BitAnd | BinOp::BitOr | BinOp::BitXor => None,
BinOp::Add | BinOp::Sub => None,
BinOp::Mul => {
BinOp::Add | BinOp::AddUnchecked | BinOp::Sub | BinOp::SubUnchecked => None,
BinOp::Mul | BinOp::MulUnchecked => {
let args = [lhs.load_scalar(fx), rhs.load_scalar(fx)];
let ret_val = fx.lib_call(
"__multi3",
@ -69,7 +69,7 @@ pub(crate) fn maybe_codegen<'tcx>(
}
}
BinOp::Lt | BinOp::Le | BinOp::Eq | BinOp::Ge | BinOp::Gt | BinOp::Ne => None,
BinOp::Shl | BinOp::Shr => None,
BinOp::Shl | BinOp::ShlUnchecked | BinOp::Shr | BinOp::ShrUnchecked => None,
}
}
@ -131,9 +131,10 @@ pub(crate) fn maybe_codegen_checked<'tcx>(
fx.lib_call(name, param_types, vec![], &args);
Some(out_place.to_cvalue(fx))
}
BinOp::AddUnchecked | BinOp::SubUnchecked | BinOp::MulUnchecked => unreachable!(),
BinOp::Offset => unreachable!("offset should only be used on pointers, not 128bit ints"),
BinOp::Div | BinOp::Rem => unreachable!(),
BinOp::Lt | BinOp::Le | BinOp::Eq | BinOp::Ge | BinOp::Gt | BinOp::Ne => unreachable!(),
BinOp::Shl | BinOp::Shr => unreachable!(),
BinOp::Shl | BinOp::ShlUnchecked | BinOp::Shr | BinOp::ShrUnchecked => unreachable!(),
}
}