1 // REQUIRES: arm-registered-target 2 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKBASIC %s 3 // RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -emit-llvm -o - %s | FileCheck -check-prefix=CHECKCC %s 4 // RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -S -o - %s | FileCheck -check-prefix=CHECKASM %s 5 6 int g0; 7 // CHECKBASIC-DAG: @g0 = common global i32 0 8 // CHECKASM-DAG: .comm g0,4,4 9 __thread int TL_WITH_ALIAS; 10 // CHECKBASIC-DAG: @TL_WITH_ALIAS = thread_local global i32 0, align 4 11 // CHECKASM-DAG: .globl TL_WITH_ALIAS 12 // CHECKASM-DAG: .size TL_WITH_ALIAS, 4 13 static int bar1 = 42; 14 // CHECKBASIC-DAG: @bar1 = internal global i32 42 15 // CHECKASM-DAG: bar1: 16 // CHECKASM-DAG: .size bar1, 4 17 18 // PR24379: alias variable expected to have same size as aliasee even when types differ 19 const int wacom_usb_ids[] = {1, 1, 2, 3, 5, 8, 13, 0}; 20 // CHECKBASIC-DAG: @wacom_usb_ids = constant [8 x i32] [i32 1, i32 1, i32 2, i32 3, i32 5, i32 8, i32 13, i32 0], align 4 21 // CHECKASM-DAG: .globl wacom_usb_ids 22 // CHECKASM-DAG: .size wacom_usb_ids, 32 23 extern const int __mod_usb_device_table __attribute__ ((alias("wacom_usb_ids"))); 24 // CHECKBASIC-DAG: @__mod_usb_device_table = alias i32, getelementptr inbounds ([8 x i32], [8 x i32]* @wacom_usb_ids, i32 0, i32 0) 25 // CHECKASM-DAG: .globl __mod_usb_device_table 26 // CHECKASM-DAG: __mod_usb_device_table = wacom_usb_ids 27 // CHECKASM-NOT: .size __mod_usb_device_table 28 29 extern int g1; 30 extern int g1 __attribute((alias("g0"))); 31 // CHECKBASIC-DAG: @g1 = alias i32, i32* @g0 32 // CHECKASM-DAG: .globl g1 33 // CHECKASM-DAG: g1 = g0 34 // CHECKASM-NOT: .size g1 35 36 extern __thread int __libc_errno __attribute__ ((alias ("TL_WITH_ALIAS"))); 37 // CHECKBASIC-DAG: @__libc_errno = thread_local alias i32, i32* @TL_WITH_ALIAS 38 // CHECKASM-DAG: .globl __libc_errno 39 // CHECKASM-DAG: __libc_errno = TL_WITH_ALIAS 40 // CHECKASM-NOT: .size __libc_errno 41 42 void f0(void) { } 43 extern void f1(void); 44 extern void f1(void) __attribute((alias("f0"))); 45 // CHECKBASIC-DAG: @f1 = alias void (), void ()* @f0 46 // CHECKBASIC-DAG: @test8_foo = weak alias void (...), bitcast (void ()* @test8_bar to void (...)*) 47 // CHECKBASIC-DAG: @test8_zed = alias void (...), bitcast (void ()* @test8_bar to void (...)*) 48 // CHECKBASIC-DAG: @test9_zed = alias void (), void ()* @test9_bar 49 // CHECKBASIC: define void @f0() [[NUW:#[0-9]+]] { 50 51 // Make sure that aliases cause referenced values to be emitted. 52 // PR3200 53 static inline int foo1() { return 0; } 54 // CHECKBASIC-LABEL: define internal i32 @foo1() 55 int foo() __attribute__((alias("foo1"))); 56 int bar() __attribute__((alias("bar1"))); 57 58 extern int test6(); 59 void test7() { test6(); } // test6 is emitted as extern. 60 61 // test6 changes to alias. 62 int test6() __attribute__((alias("test7"))); 63 64 static int inner(int a) { return 0; } 65 static int inner_weak(int a) { return 0; } 66 extern __typeof(inner) inner_a __attribute__((alias("inner"))); 67 static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak"))); 68 // CHECKCC: @inner_a = alias i32 (i32), i32 (i32)* @inner 69 // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) [[NUW:#[0-9]+]] { 70 71 int outer(int a) { return inner(a); } 72 // CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) [[NUW]] { 73 // CHECKCC: call arm_aapcs_vfpcc i32 @inner(i32 %{{.*}}) 74 75 int outer_weak(int a) { return inner_weak_a(a); } 76 // CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) [[NUW]] { 77 // CHECKCC: call arm_aapcs_vfpcc i32 @inner_weak(i32 %{{.*}}) 78 // CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) [[NUW]] { 79 80 // CHECKBASIC: attributes [[NUW]] = { nounwind{{.*}} } 81 82 // CHECKCC: attributes [[NUW]] = { nounwind{{.*}} } 83 84 void test8_bar() {} 85 void test8_foo() __attribute__((weak, alias("test8_bar"))); 86 void test8_zed() __attribute__((alias("test8_foo"))); 87 88 void test9_bar(void) { } 89 void test9_zed(void) __attribute__((section("test"))); 90 void test9_zed(void) __attribute__((alias("test9_bar"))); 91
