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
7typedef int T0;
8typedef struct { int a[16]; } T1;
9
10T0 __attribute__((const)) f0(void);
11T0 __attribute__((pure)) f1(void);
12T1 __attribute__((const)) f2(void);
13T1 __attribute__((pure)) f3(void);
14void __attribute__((const)) f4(T1 a);
15void __attribute__((pure)) f5(T1 a);
16
17void *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