39 lines · c
1// RUN: %clang_cc1 -triple=i386-pc-solaris2.11 -w -emit-llvm %s -o - | FileCheck %s2 3#pragma redefine_extname fake real4#pragma redefine_extname name alias5 6extern int fake(void);7 8int name;9 10// __PRAGMA_REDEFINE_EXTNAME should be defined. This will fail if it isn't...11int fish(void) { return fake() + __PRAGMA_REDEFINE_EXTNAME + name; }12// Check that the call to fake() is emitted as a call to real()13// CHECK: call i32 @real()14// Check that this also works with variables names15// CHECK: load i32, ptr @alias16 17// This is a case when redefenition is deferred *and* we have a local of the18// same name. PR23923.19#pragma redefine_extname foo bar20int f(void) {21 int foo = 0;22 return foo;23}24extern int foo(void) { return 1; }25// CHECK: define{{.*}} i32 @bar()26 27// Check that pragma redefine_extname applies to external declarations only.28#pragma redefine_extname foo_static bar_static29static int foo_static(void) { return 1; }30int baz(void) { return foo_static(); }31// CHECK-NOT: call i32 @bar_static()32 33// Check that pragma redefine_extname applies to builtin functions.34typedef unsigned long size_t;35extern void *memcpy(void *, const void *, size_t);36#pragma redefine_extname memcpy __GI_memcpy37void *test_memcpy(void *dst, const void *src, size_t n) { return memcpy(dst, src, n); }38// CHECK: call ptr @__GI_memcpy(39