1// RUN:  %clang_cc1 -triple aarch64_be-linux-gnu -ffreestanding -emit-llvm -O0 -o - %s | FileCheck %s
2
3#include <stdarg.h>
4
5// A single member HFA must be aligned just like a non-HFA register argument.
6double callee(int a, ...) {
7// CHECK: [[REGPP:%.*]] = getelementptr inbounds %struct.__va_list, %struct.__va_list* [[VA:%.*]], i32 0, i32 2
8// CHECK: [[REGP:%.*]] = load i8*, i8** [[REGPP]], align 8
9// CHECK: [[OFFSET0:%.*]] = getelementptr inbounds i8, i8* [[REGP]], i32 {{.*}}
10// CHECK: [[OFFSET1:%.*]] = getelementptr inbounds i8, i8* [[OFFSET0]], i64 8
11
12// CHECK: [[MEMPP:%.*]] = getelementptr inbounds %struct.__va_list, %struct.__va_list* [[VA:%.*]], i32 0, i32 0
13// CHECK: [[MEMP:%.*]] = load i8*, i8** [[MEMPP]], align 8
14// CHECK: [[NEXTP:%.*]] = getelementptr inbounds i8, i8* [[MEMP]], i64 8
15// CHECK: store i8* [[NEXTP]], i8** [[MEMPP]], align 8
16  va_list vl;
17  va_start(vl, a);
18  double result = va_arg(vl, struct { double a; }).a;
19  va_end(vl);
20  return result;
21}
22