1 // RUN: %clang_cc1 -triple x86_64-pc-linux -Wno-strict-prototypes -verify -emit-llvm-only %s 2 3 void f1(void) __attribute__((alias("g1"))); g1(void)4void g1(void) { 5 } 6 7 void f2(void) __attribute__((alias("g2"))); // expected-error {{alias must point to a defined variable or function}} 8 // expected-note@-1 {{must refer to its mangled name}} 9 10 void f3(void) __attribute__((alias("g3"))); // expected-error {{alias must point to a defined variable or function}} 11 // expected-note@-1 {{must refer to its mangled name}} 12 void g3(void); 13 14 15 void f4() __attribute__((alias("g4"))); g4()16void g4() {} 17 void h4() __attribute__((alias("f4"))); 18 19 void f5() __attribute__((alias("g5"))); 20 void h5() __attribute__((alias("f5"))); g5()21void g5() {} 22 g6()23void g6() {} 24 void f6() __attribute__((alias("g6"))); 25 void h6() __attribute__((alias("f6"))); 26 g7()27void g7() {} 28 void h7() __attribute__((alias("f7"))); 29 void f7() __attribute__((alias("g7"))); 30 31 void h8() __attribute__((alias("f8"))); g8()32void g8() {} 33 void f8() __attribute__((alias("g8"))); 34 35 void h9() __attribute__((alias("f9"))); 36 void f9() __attribute__((alias("g9"))); g9()37void g9() {} 38 39 void f10() __attribute__((alias("g10"))); // expected-error {{alias definition is part of a cycle}} 40 void g10() __attribute__((alias("f10"))); // expected-error {{alias definition is part of a cycle}} 41 42 // FIXME: This could be a bit better, h10 is not part of the cycle, it points 43 // to it. 44 void h10() __attribute__((alias("g10"))); // expected-error {{alias definition is part of a cycle}} 45 46 extern int a1 __attribute__((alias("b1"))); 47 int b1 = 42; 48 49 extern int a2 __attribute__((alias("b2"))); // expected-error {{alias must point to a defined variable or function}} 50 // expected-note@-1 {{must refer to its mangled name}} 51 52 extern int a3 __attribute__((alias("b3"))); // expected-error {{alias must point to a defined variable or function}} 53 // expected-note@-1 {{must refer to its mangled name}} 54 extern int b3; 55 56 extern int a4 __attribute__((alias("b4"))); // expected-error {{alias must point to a defined variable or function}} 57 // expected-note@-1 {{must refer to its mangled name}} 58 typedef int b4; 59 test2_bar()60void test2_bar() {} 61 void test2_foo() __attribute__((weak, alias("test2_bar"))); 62 void test2_zed() __attribute__((alias("test2_foo"))); // expected-warning {{alias will always resolve to test2_bar even if weak definition of test2_foo is overridden}} 63 test3_bar()64void test3_bar() { } 65 void test3_foo() __attribute__((section("test"))); // expected-warning {{alias will not be in section 'test' but in the same section as the aliasee}} 66 void test3_foo() __attribute__((alias("test3_bar"))); 67 test4_bar()68__attribute__((section("test"))) void test4_bar() { } 69 void test4_foo() __attribute__((section("test"))); 70 void test4_foo() __attribute__((alias("test4_bar"))); 71 72 int test5_bar = 0; 73 extern struct incomplete_type test5_foo __attribute__((alias("test5_bar"))); 74