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fix cranelift and gcc backends

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This commit is contained in:
Ralf Jung 2022-07-05 16:53:48 -04:00
parent a422b42159
commit 052651dd13
2 changed files with 5 additions and 5 deletions
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1
compiler/rustc_codegen_cranelift/src/constant.rs
View File

@ -167,6 +167,7 @@ pub(crate) fn codegen_const_value<'tcx>(
}
match const_val {
ConstValue::ZST => unreachable!(), // we already handles ZST above
ConstValue::Scalar(x) => match x {
Scalar::Int(int) => {
if fx.clif_type(layout.ty).is_some() {

9
compiler/rustc_codegen_gcc/src/common.rs
View File

@ -9,7 +9,6 @@ use rustc_codegen_ssa::traits::{
StaticMethods,
};
use rustc_middle::mir::Mutability;
use rustc_middle::ty::ScalarInt;
use rustc_middle::ty::layout::{TyAndLayout, LayoutOf};
use rustc_middle::mir::interpret::{ConstAllocation, GlobalAlloc, Scalar};
use rustc_target::abi::{self, HasDataLayout, Pointer, Size};
@ -159,13 +158,13 @@ impl<'gcc, 'tcx> ConstMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
None
}
fn zst_to_backend(&self, _ty: Type<'gcc>) -> RValue<'gcc> {
self.const_undef(self.type_ix(0))
}
fn scalar_to_backend(&self, cv: Scalar, layout: abi::Scalar, ty: Type<'gcc>) -> RValue<'gcc> {
let bitsize = if layout.is_bool() { 1 } else { layout.size(self).bits() };
match cv {
Scalar::Int(ScalarInt::ZST) => {
assert_eq!(0, layout.size(self).bytes());
self.const_undef(self.type_ix(0))
}
Scalar::Int(int) => {
let data = int.assert_bits(layout.size(self));