1 // RUN: %clang_cc1 -triple=i386-pc-solaris2.11 -w -emit-llvm %s -o - | FileCheck %s
2 
3 extern "C" {
4   struct statvfs64 {
5     int f;
6   };
7 #pragma redefine_extname statvfs64 statvfs
8   int statvfs64(struct statvfs64 *);
9 }
10 
some_func()11 void some_func() {
12   struct statvfs64 st;
13   statvfs64(&st);
14 // Check that even if there is a structure with redefined name before the
15 // pragma, subsequent function name redefined properly. PR5172, Comment 11.
16 // CHECK:  call i32 @statvfs(%struct.statvfs64* %st)
17 }
18 
19 // This is a case when redefenition is deferred *and* we have a local of the
20 // same name. PR23923.
21 #pragma redefine_extname foo bar
f()22 int f() {
23   int foo = 0;
24   return foo;
25 }
26 extern "C" {
foo()27   int foo() { return 1; }
28 // CHECK: define i32 @bar()
29 }
30 
31 // Check that #pragma redefine_extname applies to C code only, and shouldn't be
32 // applied to C++.
33 #pragma redefine_extname foo_cpp bar_cpp
foo_cpp()34 extern int foo_cpp() { return 1; }
35 // CHECK-NOT: define i32 @bar_cpp()
36 
37