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.
callee(int a,...)6 double 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