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Diffstat (limited to 'clang/test/CodeGen/struct-passing.c')
| -rw-r--r-- | clang/test/CodeGen/struct-passing.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/clang/test/CodeGen/struct-passing.c b/clang/test/CodeGen/struct-passing.c new file mode 100644 index 0000000..efb00ef --- /dev/null +++ b/clang/test/CodeGen/struct-passing.c @@ -0,0 +1,24 @@ +// 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() nounwind readnone +// CHECK: declare i32 @f1() nounwind readonly +// CHECK: declare void @f2({{.*}} sret) +// CHECK: declare void @f3({{.*}} sret) +// CHECK: declare void @f4({{.*}} byval align 4) +// CHECK: declare void @f5({{.*}} byval align 4) |