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fix condition checks for SVE <vscale x N x i1> when N != 16

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This commit is contained in:
Fang He 2025-12-28 14:59:40 +08:00
parent 435a027c71
commit f9007bcb87
1 changed files with 4 additions and 9 deletions
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13
compiler/rustc_codegen_ssa/src/mir/debuginfo.rs
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@ -2,7 +2,7 @@ use std::collections::hash_map::Entry;
use std::marker::PhantomData;
use std::ops::Range;
use rustc_abi::{BackendRepr, FieldIdx, FieldsShape, ScalableElt, Size, VariantIdx};
use rustc_abi::{BackendRepr, FieldIdx, FieldsShape, Size, VariantIdx};
use rustc_data_structures::fx::FxHashMap;
use rustc_index::IndexVec;
use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags;
@ -437,16 +437,11 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
// debugging experience anyway.
if operand.layout.ty.is_scalable_vector()
&& bx.sess().target.arch == rustc_target::spec::Arch::AArch64
&& let ty::Adt(adt, args) = &operand.layout.ty.kind()
&& let Some(marker_type_field) =
adt.non_enum_variant().fields.get(FieldIdx::from_u32(0))
{
let marker_type = marker_type_field.ty(bx.tcx(), args);
let (count, element_ty) =
operand.layout.ty.scalable_vector_element_count_and_type(bx.tcx());
// i.e. `<vscale x N x i1>` when `N != 16`
if let ty::Slice(element_ty) = marker_type.kind()
&& element_ty.is_bool()
&& adt.repr().scalable != Some(ScalableElt::ElementCount(16))
{
if element_ty.is_bool() && count != 16 {
return;
}
}