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