1176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines// RUN: %clang_cc1 -triple aarch64_be-linux-gnu -ffreestanding -emit-llvm -O0 -o - %s | FileCheck %s 26bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 36bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines#include <stdarg.h> 46bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 56bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines// A single member HFA must be aligned just like a non-HFA register argument. 66bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesdouble callee(int a, ...) { 7a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar// CHECK: [[REGPP:%.*]] = getelementptr inbounds %struct.__va_list, %struct.__va_list* [[VA:%.*]], i32 0, i32 2 8a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar// CHECK: [[REGP:%.*]] = load i8*, i8** [[REGPP]], align 8 9a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar// CHECK: [[OFFSET0:%.*]] = getelementptr inbounds i8, i8* [[REGP]], i32 {{.*}} 10a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar// CHECK: [[OFFSET1:%.*]] = getelementptr inbounds i8, i8* [[OFFSET0]], i64 8 11a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 12a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar// CHECK: [[MEMPP:%.*]] = getelementptr inbounds %struct.__va_list, %struct.__va_list* [[VA:%.*]], i32 0, i32 0 13a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar// CHECK: [[MEMP:%.*]] = load i8*, i8** [[MEMPP]], align 8 14a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar// CHECK: [[NEXTP:%.*]] = getelementptr inbounds i8, i8* [[MEMP]], i64 8 15a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar// CHECK: store i8* [[NEXTP]], i8** [[MEMPP]], align 8 166bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines va_list vl; 176bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines va_start(vl, a); 186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines double result = va_arg(vl, struct { double a; }).a; 196bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines va_end(vl); 206bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return result; 216bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines} 22