| // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKBASIC %s |
| // RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -emit-llvm -o - %s | FileCheck -check-prefix=CHECKCC %s |
| |
| int g0; |
| // CHECKBASIC: @g0 = common global i32 0 |
| __thread int TL_WITH_ALIAS; |
| // CHECKBASIC-DAG: @TL_WITH_ALIAS = thread_local global i32 0, align 4 |
| static int bar1 = 42; |
| // CHECKBASIC: @bar1 = internal global i32 42 |
| |
| extern int g1; |
| extern int g1 __attribute((alias("g0"))); |
| // CHECKBASIC-DAG: @g1 = alias i32* @g0 |
| |
| extern __thread int __libc_errno __attribute__ ((alias ("TL_WITH_ALIAS"))); |
| // CHECKBASIC-DAG: @__libc_errno = thread_local alias i32* @TL_WITH_ALIAS |
| |
| void f0(void) { } |
| extern void f1(void); |
| extern void f1(void) __attribute((alias("f0"))); |
| // CHECKBASIC-DAG: @f1 = alias void ()* @f0 |
| // CHECKBASIC-DAG: @test8_foo = weak alias bitcast (void ()* @test8_bar to void (...)*) |
| // CHECKBASIC-DAG: @test8_zed = alias bitcast (void ()* @test8_bar to void (...)*) |
| // CHECKBASIC-DAG: @test9_zed = alias void ()* @test9_bar |
| // CHECKBASIC: define void @f0() [[NUW:#[0-9]+]] { |
| |
| // Make sure that aliases cause referenced values to be emitted. |
| // PR3200 |
| static inline int foo1() { return 0; } |
| // CHECKBASIC-LABEL: define internal i32 @foo1() |
| int foo() __attribute__((alias("foo1"))); |
| int bar() __attribute__((alias("bar1"))); |
| |
| extern int test6(); |
| void test7() { test6(); } // test6 is emitted as extern. |
| |
| // test6 changes to alias. |
| int test6() __attribute__((alias("test7"))); |
| |
| static int inner(int a) { return 0; } |
| static int inner_weak(int a) { return 0; } |
| extern __typeof(inner) inner_a __attribute__((alias("inner"))); |
| static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak"))); |
| // CHECKCC: @inner_a = alias i32 (i32)* @inner |
| // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) [[NUW:#[0-9]+]] { |
| |
| int outer(int a) { return inner(a); } |
| // CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) [[NUW]] { |
| // CHECKCC: call arm_aapcs_vfpcc i32 @inner(i32 %{{.*}}) |
| |
| int outer_weak(int a) { return inner_weak_a(a); } |
| // CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) [[NUW]] { |
| // CHECKCC: call arm_aapcs_vfpcc i32 @inner_weak(i32 %{{.*}}) |
| // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) [[NUW]] { |
| |
| // CHECKBASIC: attributes [[NUW]] = { nounwind{{.*}} } |
| |
| // CHECKCC: attributes [[NUW]] = { nounwind{{.*}} } |
| |
| void test8_bar() {} |
| void test8_foo() __attribute__((weak, alias("test8_bar"))); |
| void test8_zed() __attribute__((alias("test8_foo"))); |
| |
| void test9_bar(void) { } |
| void test9_zed(void) __attribute__((section("test"))); |
| void test9_zed(void) __attribute__((alias("test9_bar"))); |