Sjoerd Meijer 3d9a0445cc Recommit #2 "[Driver] Default to -fno-common for all targets"
After a first attempt to fix the test-suite failures, my first recommit
caused the same failures again. I had updated CMakeList.txt files of
tests that needed -fcommon, but it turns out that there are also
Makefiles which are used by some bots, so I've updated these Makefiles
now too.

See the original commit message for more details on this change:
0a9fc9233e172601e26381810d093e02ef410f65
2020-03-09 19:57:03 +00:00

112 lines
4.7 KiB
C

// REQUIRES: arm-registered-target
// 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
// RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -S -o - %s | FileCheck -check-prefix=CHECKASM %s
// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKGLOBALS %s
int g0;
// CHECKBASIC-DAG: @g0 = global i32 0
// CHECKASM-DAG: .bss
// CHECKASM-DAG: .globl g0
// CHECKASM-DAG: .p2align 2
// CHECKASM-DAG: g0:
// CHECKASM-DAG: .long 0
// CHECKASM-DAG: .size g0, 4
__thread int TL_WITH_ALIAS;
// CHECKBASIC-DAG: @TL_WITH_ALIAS = thread_local global i32 0, align 4
// CHECKASM-DAG: .globl TL_WITH_ALIAS
// CHECKASM-DAG: .size TL_WITH_ALIAS, 4
static int bar1 = 42;
// CHECKBASIC-DAG: @bar1 = internal global i32 42
// CHECKASM-DAG: bar1:
// CHECKASM-DAG: .size bar1, 4
// PR24379: alias variable expected to have same size as aliasee even when types differ
const int wacom_usb_ids[] = {1, 1, 2, 3, 5, 8, 13, 0};
// 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
// CHECKASM-DAG: .globl wacom_usb_ids
// CHECKASM-DAG: .size wacom_usb_ids, 32
extern const int __mod_usb_device_table __attribute__ ((alias("wacom_usb_ids")));
// CHECKBASIC-DAG: @__mod_usb_device_table = alias i32, getelementptr inbounds ([8 x i32], [8 x i32]* @wacom_usb_ids, i32 0, i32 0)
// CHECKASM-DAG: .globl __mod_usb_device_table
// CHECKASM-DAG: .set __mod_usb_device_table, wacom_usb_ids
// CHECKASM-NOT: .size __mod_usb_device_table
extern int g1;
extern int g1 __attribute((alias("g0")));
// CHECKBASIC-DAG: @g1 = alias i32, i32* @g0
// CHECKASM-DAG: .globl g1
// CHECKASM-DAG: .set g1, g0
// CHECKASM-NOT: .size g1
extern __thread int __libc_errno __attribute__ ((alias ("TL_WITH_ALIAS")));
// CHECKBASIC-DAG: @__libc_errno = thread_local alias i32, i32* @TL_WITH_ALIAS
// CHECKASM-DAG: .globl __libc_errno
// CHECKASM-DAG: .set __libc_errno, TL_WITH_ALIAS
// CHECKASM-NOT: .size __libc_errno
void f0(void) { }
extern void f1(void);
extern void f1(void) __attribute((alias("f0")));
// CHECKBASIC-DAG: @f1 = alias void (), void ()* @f0
// CHECKBASIC-DAG: @test8_foo = weak alias void (...), bitcast (void ()* @test8_bar to void (...)*)
// CHECKBASIC-DAG: @test8_zed = alias void (...), bitcast (void ()* @test8_bar to void (...)*)
// CHECKBASIC-DAG: @test9_zed = alias void (), 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), 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]] = { noinline nounwind{{.*}} }
// CHECKCC: attributes [[NUW]] = { noinline 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")));
// Test that the alias gets its linkage from its declared qual type.
// CHECKGLOBALS: @test10_foo = internal
// CHECKGLOBALS-NOT: @test10_foo = dso_local
int test10;
static int test10_foo __attribute__((alias("test10")));
// CHECKGLOBALS: @test11_foo = internal
// CHECKGLOBALS-NOT: @test11_foo = dso_local
void test11(void) {}
static void test11_foo(void) __attribute__((alias("test11")));
// Test that gnu_inline+alias work.
// CHECKGLOBALS: @test12_alias = alias void (), void ()* @test12
void test12(void) {}
inline void test12_alias(void) __attribute__((gnu_inline, alias("test12")));