| // This verifies that structs returned from functions by value are passed |
| // correctly according to their attributes and the ABI. |
| // SEE: PR3835 |
| |
| // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s |
| |
| typedef int T0; |
| typedef struct { int a[16]; } T1; |
| |
| T0 __attribute__((const)) f0(void); |
| T0 __attribute__((pure)) f1(void); |
| T1 __attribute__((const)) f2(void); |
| T1 __attribute__((pure)) f3(void); |
| void __attribute__((const)) f4(T1 a); |
| void __attribute__((pure)) f5(T1 a); |
| |
| void *ps[] = { f0, f1, f2, f3, f4, f5 }; |
| |
| // CHECK: declare i32 @f0() [[RN:#[0-9]+]] |
| // CHECK: declare i32 @f1() [[RO:#[0-9]+]] |
| // CHECK: declare void @f2({{.*}} sret({{.*}}) align 4) |
| // CHECK: declare void @f3({{.*}} sret({{.*}}) align 4) |
| // CHECK: declare void @f4({{.*}} byval({{.*}}) align 4) |
| // CHECK: declare void @f5({{.*}} byval({{.*}}) align 4) |
| |
| // CHECK: attributes [[RN]] = { nounwind willreturn memory(none){{.*}} } |
| // CHECK: attributes [[RO]] = { nounwind willreturn memory(read){{.*}} } |
