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. 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
