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Remove implementation of intrinsics that are now lowered

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See rust-lang/rust#80040
This commit is contained in:
bjorn3 2020-12-18 11:12:52 +01:00
parent 32f92aa34f
commit 54ba238a6d
1 changed files with 1 additions and 26 deletions
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27
src/intrinsics/mod.rs
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@ -444,9 +444,6 @@ pub(crate) fn codegen_intrinsic_call<'tcx>(
"abort" => {
trap_abort(fx, "Called intrinsic::abort.");
}
"unreachable" => {
trap_unreachable(fx, "[corruption] Called intrinsic::unreachable.");
}
"transmute" => {
crate::base::codegen_panic(fx, "Transmuting to uninhabited type.", span);
}
@ -559,12 +556,6 @@ pub(crate) fn codegen_intrinsic_call<'tcx>(
fx.bcx.call_memmove(fx.cx.module.target_config(), dst, src, byte_amount);
}
};
discriminant_value, (c ptr) {
let pointee_layout = fx.layout_of(ptr.layout().ty.builtin_deref(true).unwrap().ty);
let val = CValue::by_ref(Pointer::new(ptr.load_scalar(fx)), pointee_layout);
let discr = crate::discriminant::codegen_get_discriminant(fx, val, ret.layout());
ret.write_cvalue(fx, discr);
};
size_of_val, <T> (c ptr) {
let layout = fx.layout_of(T);
let size = if layout.is_unsized() {
@ -625,22 +616,6 @@ pub(crate) fn codegen_intrinsic_call<'tcx>(
);
ret.write_cvalue(fx, res);
};
_ if intrinsic.starts_with("wrapping_"), (c x, c y) {
assert_eq!(x.layout().ty, y.layout().ty);
let bin_op = match intrinsic {
"wrapping_add" => BinOp::Add,
"wrapping_sub" => BinOp::Sub,
"wrapping_mul" => BinOp::Mul,
_ => unreachable!("intrinsic {}", intrinsic),
};
let res = crate::num::codegen_int_binop(
fx,
bin_op,
x,
y,
);
ret.write_cvalue(fx, res);
};
_ if intrinsic.starts_with("saturating_"), <T> (c lhs, c rhs) {
assert_eq!(lhs.layout().ty, rhs.layout().ty);
let bin_op = match intrinsic {
@ -900,7 +875,7 @@ pub(crate) fn codegen_intrinsic_call<'tcx>(
dest.write_cvalue(fx, val);
};
size_of | pref_align_of | min_align_of | needs_drop | type_id | type_name | variant_count, () {
pref_align_of | min_align_of | needs_drop | type_id | type_name | variant_count, () {
let const_val =
fx.tcx.const_eval_instance(ParamEnv::reveal_all(), instance, None).unwrap();
let val = crate::constant::codegen_const_value(