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 __thread int TL_WITH_ALIAS; 7 // CHECKBASIC-DAG: @TL_WITH_ALIAS = thread_local global i32 0, align 4 8 static int bar1 = 42; 9 // CHECKBASIC: @bar1 = internal global i32 42 10 11 extern int g1; 12 extern int g1 __attribute((alias("g0"))); 13 // CHECKBASIC-DAG: @g1 = alias i32* @g0 14 15 extern __thread int __libc_errno __attribute__ ((alias ("TL_WITH_ALIAS"))); 16 // CHECKBASIC-DAG: @__libc_errno = thread_local alias i32* @TL_WITH_ALIAS 17 f0(void)18void f0(void) { } 19 extern void f1(void); 20 extern void f1(void) __attribute((alias("f0"))); 21 // CHECKBASIC-DAG: @f1 = alias void ()* @f0 22 // CHECKBASIC-DAG: @test8_foo = weak alias bitcast (void ()* @test8_bar to void (...)*) 23 // CHECKBASIC-DAG: @test8_zed = alias bitcast (void ()* @test8_bar to void (...)*) 24 // CHECKBASIC-DAG: @test9_zed = alias void ()* @test9_bar 25 // CHECKBASIC: define void @f0() [[NUW:#[0-9]+]] { 26 27 // Make sure that aliases cause referenced values to be emitted. 28 // PR3200 foo1()29static inline int foo1() { return 0; } 30 // CHECKBASIC-LABEL: define internal i32 @foo1() 31 int foo() __attribute__((alias("foo1"))); 32 int bar() __attribute__((alias("bar1"))); 33 34 extern int test6(); test7()35void test7() { test6(); } // test6 is emitted as extern. 36 37 // test6 changes to alias. 38 int test6() __attribute__((alias("test7"))); 39 inner(int a)40static int inner(int a) { return 0; } inner_weak(int a)41static int inner_weak(int a) { return 0; } 42 extern __typeof(inner) inner_a __attribute__((alias("inner"))); 43 static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak"))); 44 // CHECKCC: @inner_a = alias i32 (i32)* @inner 45 // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) [[NUW:#[0-9]+]] { 46 outer(int a)47int outer(int a) { return inner(a); } 48 // CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) [[NUW]] { 49 // CHECKCC: call arm_aapcs_vfpcc i32 @inner(i32 %{{.*}}) 50 outer_weak(int a)51int outer_weak(int a) { return inner_weak_a(a); } 52 // CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) [[NUW]] { 53 // CHECKCC: call arm_aapcs_vfpcc i32 @inner_weak(i32 %{{.*}}) 54 // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) [[NUW]] { 55 56 // CHECKBASIC: attributes [[NUW]] = { nounwind{{.*}} } 57 58 // CHECKCC: attributes [[NUW]] = { nounwind{{.*}} } 59 test8_bar()60void test8_bar() {} 61 void test8_foo() __attribute__((weak, alias("test8_bar"))); 62 void test8_zed() __attribute__((alias("test8_foo"))); 63 test9_bar(void)64void test9_bar(void) { } 65 void test9_zed(void) __attribute__((section("test"))); 66 void test9_zed(void) __attribute__((alias("test9_bar"))); 67