1 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKBASIC %s
2 // RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -emit-llvm -o - %s | FileCheck -check-prefix=CHECKCC %s
3
4 int g0;
5 // CHECKBASIC: @g0 = common global i32 0
6 static int bar1 = 42;
7 // CHECKBASIC: @bar1 = internal global i32 42
8
9 extern int g1;
10 extern int g1 __attribute((alias("g0")));
11 // CHECKBASIC-DAG: @g1 = alias i32* @g0
12
f0(void)13 void f0(void) { }
14 extern void f1(void);
15 extern void f1(void) __attribute((alias("f0")));
16 // CHECKBASIC-DAG: @f1 = alias void ()* @f0
17 // CHECKBASIC-DAG: @test8_foo = alias weak bitcast (void ()* @test8_bar to void (...)*)
18 // CHECKBASIC-DAG: @test8_zed = alias bitcast (void ()* @test8_bar to void (...)*)
19 // CHECKBASIC-DAG: @test9_zed = alias void ()* @test9_bar
20 // CHECKBASIC: define void @f0() [[NUW:#[0-9]+]] {
21
22 // Make sure that aliases cause referenced values to be emitted.
23 // PR3200
foo1()24 static inline int foo1() { return 0; }
25 // CHECKBASIC-LABEL: define internal i32 @foo1()
26 int foo() __attribute__((alias("foo1")));
27 int bar() __attribute__((alias("bar1")));
28
29 extern int test6();
test7()30 void test7() { test6(); } // test6 is emitted as extern.
31
32 // test6 changes to alias.
33 int test6() __attribute__((alias("test7")));
34
inner(int a)35 static int inner(int a) { return 0; }
inner_weak(int a)36 static int inner_weak(int a) { return 0; }
37 extern __typeof(inner) inner_a __attribute__((alias("inner")));
38 static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak")));
39 // CHECKCC: @inner_a = alias i32 (i32)* @inner
40 // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) [[NUW:#[0-9]+]] {
41
outer(int a)42 int outer(int a) { return inner(a); }
43 // CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) [[NUW]] {
44 // CHECKCC: call arm_aapcs_vfpcc i32 @inner(i32 %{{.*}})
45
outer_weak(int a)46 int outer_weak(int a) { return inner_weak_a(a); }
47 // CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) [[NUW]] {
48 // CHECKCC: call arm_aapcs_vfpcc i32 @inner_weak(i32 %{{.*}})
49 // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) [[NUW]] {
50
51 // CHECKBASIC: attributes [[NUW]] = { nounwind{{.*}} }
52
53 // CHECKCC: attributes [[NUW]] = { nounwind{{.*}} }
54
test8_bar()55 void test8_bar() {}
56 void test8_foo() __attribute__((weak, alias("test8_bar")));
57 void test8_zed() __attribute__((alias("test8_foo")));
58
test9_bar(void)59 void test9_bar(void) { }
60 void test9_zed(void) __attribute__((section("test")));
61 void test9_zed(void) __attribute__((alias("test9_bar")));
62