| // RUN: %clang_cc1 -triple=i386-pc-solaris2.11 -w -emit-llvm %s -o - | FileCheck %s |
| |
| #pragma redefine_extname fake real |
| #pragma redefine_extname name alias |
| |
| extern int fake(void); |
| |
| int name; |
| |
| // __PRAGMA_REDEFINE_EXTNAME should be defined. This will fail if it isn't... |
| int fish(void) { return fake() + __PRAGMA_REDEFINE_EXTNAME + name; } |
| // Check that the call to fake() is emitted as a call to real() |
| // CHECK: call i32 @real() |
| // Check that this also works with variables names |
| // CHECK: load i32, ptr @alias |
| |
| // This is a case when redefenition is deferred *and* we have a local of the |
| // same name. PR23923. |
| #pragma redefine_extname foo bar |
| int f(void) { |
| int foo = 0; |
| return foo; |
| } |
| extern int foo(void) { return 1; } |
| // CHECK: define{{.*}} i32 @bar() |
| |
| // Check that pragma redefine_extname applies to external declarations only. |
| #pragma redefine_extname foo_static bar_static |
| static int foo_static(void) { return 1; } |
| int baz(void) { return foo_static(); } |
| // CHECK-NOT: call i32 @bar_static() |
| |
| // Check that pragma redefine_extname applies to builtin functions. |
| typedef unsigned long size_t; |
| extern void *memcpy(void *, const void *, size_t); |
| #pragma redefine_extname memcpy __GI_memcpy |
| void *test_memcpy(void *dst, const void *src, size_t n) { return memcpy(dst, src, n); } |
| // CHECK: call ptr @__GI_memcpy( |
