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use [N x i8] for alloca types

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This commit is contained in:
Erik Desjardins
2024-02-24 00:48:20 -05:00
parent a07f3eb43a
commit f4426c189f
33 changed files with 203 additions and 148 deletions
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4
compiler/rustc_codegen_ssa/src/mir/operand.rs
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@@ -323,7 +323,7 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> {
let llfield_ty = bx.cx().backend_type(field);
// Can't bitcast an aggregate, so round trip through memory.
let llptr = bx.alloca(llfield_ty, field.align.abi);
let llptr = bx.alloca(field.size, field.align.abi);
bx.store(*llval, llptr, field.align.abi);
*llval = bx.load(llfield_ty, llptr, field.align.abi);
}
@@ -466,7 +466,7 @@ impl<'a, 'tcx, V: CodegenObject> OperandValue<V> {
let align_minus_1 = bx.sub(align, one);
let size_extra = bx.add(size, align_minus_1);
let min_align = Align::ONE;
let alloca = bx.byte_array_alloca(size_extra, min_align);
let alloca = bx.dynamic_alloca(size_extra, min_align);
let address = bx.ptrtoint(alloca, bx.type_isize());
let neg_address = bx.neg(address);
let offset = bx.and(neg_address, align_minus_1);