forked from OSchip/llvm-project
112 lines
4.7 KiB
C
112 lines
4.7 KiB
C
// REQUIRES: arm-registered-target
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// RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKBASIC %s
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// RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -emit-llvm -o - %s | FileCheck -check-prefix=CHECKCC %s
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// RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -S -o - %s | FileCheck -check-prefix=CHECKASM %s
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKGLOBALS %s
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int g0;
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// CHECKBASIC-DAG: @g0 = global i32 0
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// CHECKASM-DAG: .bss
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// CHECKASM-DAG: .globl g0
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// CHECKASM-DAG: .p2align 2
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// CHECKASM-DAG: g0:
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// CHECKASM-DAG: .long 0
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// CHECKASM-DAG: .size g0, 4
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__thread int TL_WITH_ALIAS;
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// CHECKBASIC-DAG: @TL_WITH_ALIAS = thread_local global i32 0, align 4
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// CHECKASM-DAG: .globl TL_WITH_ALIAS
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// CHECKASM-DAG: .size TL_WITH_ALIAS, 4
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static int bar1 = 42;
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// CHECKBASIC-DAG: @bar1 = internal global i32 42
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// CHECKASM-DAG: bar1:
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// CHECKASM-DAG: .size bar1, 4
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// PR24379: alias variable expected to have same size as aliasee even when types differ
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const int wacom_usb_ids[] = {1, 1, 2, 3, 5, 8, 13, 0};
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// 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
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// CHECKASM-DAG: .globl wacom_usb_ids
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// CHECKASM-DAG: .size wacom_usb_ids, 32
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extern const int __mod_usb_device_table __attribute__ ((alias("wacom_usb_ids")));
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// CHECKBASIC-DAG: @__mod_usb_device_table = alias i32, getelementptr inbounds ([8 x i32], [8 x i32]* @wacom_usb_ids, i32 0, i32 0)
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// CHECKASM-DAG: .globl __mod_usb_device_table
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// CHECKASM-DAG: .set __mod_usb_device_table, wacom_usb_ids
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// CHECKASM-NOT: .size __mod_usb_device_table
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extern int g1;
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extern int g1 __attribute((alias("g0")));
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// CHECKBASIC-DAG: @g1 = alias i32, i32* @g0
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// CHECKASM-DAG: .globl g1
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// CHECKASM-DAG: .set g1, g0
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// CHECKASM-NOT: .size g1
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extern __thread int __libc_errno __attribute__ ((alias ("TL_WITH_ALIAS")));
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// CHECKBASIC-DAG: @__libc_errno = thread_local alias i32, i32* @TL_WITH_ALIAS
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// CHECKASM-DAG: .globl __libc_errno
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// CHECKASM-DAG: .set __libc_errno, TL_WITH_ALIAS
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// CHECKASM-NOT: .size __libc_errno
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void f0(void) { }
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extern void f1(void);
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extern void f1(void) __attribute((alias("f0")));
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// CHECKBASIC-DAG: @f1 = alias void (), void ()* @f0
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// CHECKBASIC-DAG: @test8_foo = weak alias void (...), bitcast (void ()* @test8_bar to void (...)*)
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// CHECKBASIC-DAG: @test8_zed = alias void (...), bitcast (void ()* @test8_bar to void (...)*)
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// CHECKBASIC-DAG: @test9_zed = alias void (), void ()* @test9_bar
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// CHECKBASIC: define void @f0() [[NUW:#[0-9]+]] {
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// Make sure that aliases cause referenced values to be emitted.
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// PR3200
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static inline int foo1() { return 0; }
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// CHECKBASIC-LABEL: define internal i32 @foo1()
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int foo() __attribute__((alias("foo1")));
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int bar() __attribute__((alias("bar1")));
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extern int test6();
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void test7() { test6(); } // test6 is emitted as extern.
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// test6 changes to alias.
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int test6() __attribute__((alias("test7")));
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static int inner(int a) { return 0; }
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static int inner_weak(int a) { return 0; }
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extern __typeof(inner) inner_a __attribute__((alias("inner")));
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static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak")));
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// CHECKCC: @inner_a = alias i32 (i32), i32 (i32)* @inner
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// CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) [[NUW:#[0-9]+]] {
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int outer(int a) { return inner(a); }
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// CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) [[NUW]] {
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// CHECKCC: call arm_aapcs_vfpcc i32 @inner(i32 %{{.*}})
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int outer_weak(int a) { return inner_weak_a(a); }
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// CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) [[NUW]] {
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// CHECKCC: call arm_aapcs_vfpcc i32 @inner_weak(i32 %{{.*}})
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// CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) [[NUW]] {
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// CHECKBASIC: attributes [[NUW]] = { noinline nounwind{{.*}} }
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// CHECKCC: attributes [[NUW]] = { noinline nounwind{{.*}} }
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void test8_bar() {}
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void test8_foo() __attribute__((weak, alias("test8_bar")));
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void test8_zed() __attribute__((alias("test8_foo")));
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void test9_bar(void) { }
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void test9_zed(void) __attribute__((section("test")));
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void test9_zed(void) __attribute__((alias("test9_bar")));
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// Test that the alias gets its linkage from its declared qual type.
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// CHECKGLOBALS: @test10_foo = internal
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// CHECKGLOBALS-NOT: @test10_foo = dso_local
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int test10;
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static int test10_foo __attribute__((alias("test10")));
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// CHECKGLOBALS: @test11_foo = internal
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// CHECKGLOBALS-NOT: @test11_foo = dso_local
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void test11(void) {}
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static void test11_foo(void) __attribute__((alias("test11")));
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// Test that gnu_inline+alias work.
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// CHECKGLOBALS: @test12_alias = alias void (), void ()* @test12
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void test12(void) {}
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inline void test12_alias(void) __attribute__((gnu_inline, alias("test12")));
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