| Michael J. Spencer | 5d058e7 | 2010-10-19 06:39:49 +0000 | [diff] [blame] | 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 |
| Daniel Dunbar | 0ac86f0 | 2009-03-18 19:51:01 +0000 | [diff] [blame] | 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 }; |
| Michael J. Spencer | 5d058e7 | 2010-10-19 06:39:49 +0000 | [diff] [blame] | 18 | |
| Bill Wendling | c3af679 | 2013-02-26 23:08:48 +0000 | [diff] [blame] | 19 | // CHECK: declare i32 @f0() [[RN:#[0-9]+]] |
| 20 | // CHECK: declare i32 @f1() [[RO:#[0-9]+]] |
| Michael J. Spencer | 5d058e7 | 2010-10-19 06:39:49 +0000 | [diff] [blame] | 21 | // CHECK: declare void @f2({{.*}} sret) |
| 22 | // CHECK: declare void @f3({{.*}} sret) |
| Bill Wendling | c1ea4b9 | 2013-02-15 05:25:49 +0000 | [diff] [blame] | 23 | // CHECK: declare void @f4({{.*}} byval align 4) |
| 24 | // CHECK: declare void @f5({{.*}} byval align 4) |
| Bill Wendling | f7a9da0 | 2013-02-20 07:22:19 +0000 | [diff] [blame] | 25 | |
| Bill Wendling | c3af679 | 2013-02-26 23:08:48 +0000 | [diff] [blame] | 26 | // CHECK: attributes [[RN]] = { nounwind readnone{{.*}} } |
| 27 | // CHECK: attributes [[RO]] = { nounwind readonly{{.*}} } |