1 // This verifies that structs returned from functions by value are passed 2 // correctly according to their attributes and the ABI. 3 // SEE: PR3835 4 5 // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s 6 7 typedef int T0; 8 typedef struct { int a[16]; } T1; 9 10 T0 __attribute__((const)) f0(void); 11 T0 __attribute__((pure)) f1(void); 12 T1 __attribute__((const)) f2(void); 13 T1 __attribute__((pure)) f3(void); 14 void __attribute__((const)) f4(T1 a); 15 void __attribute__((pure)) f5(T1 a); 16 17 void *ps[] = { f0, f1, f2, f3, f4, f5 }; 18 19 // CHECK: declare i32 @f0() [[RN:#[0-9]+]] 20 // CHECK: declare i32 @f1() [[RO:#[0-9]+]] 21 // CHECK: declare void @f2({{.*}} sret) 22 // CHECK: declare void @f3({{.*}} sret) 23 // CHECK: declare void @f4({{.*}} byval align 4) 24 // CHECK: declare void @f5({{.*}} byval align 4) 25 26 // CHECK: attributes [[RN]] = { nounwind readnone{{.*}} } 27 // CHECK: attributes [[RO]] = { nounwind readonly{{.*}} } 28
