1 | // RUN: %clang_cc1 -emit-llvm -fcf-protection=branch -triple i386-linux-gnu -o %t %s |
2 | // RUN: FileCheck --input-file=%t %s |
3 | |
4 | // CHECK: @t5 = weak global i32 2 |
5 | int t5 __attribute__((weak)) = 2; |
6 | |
7 | // CHECK: @t13 = global %struct.s0 zeroinitializer, section "SECT" |
8 | struct s0 { int x; }; |
9 | struct s0 t13 __attribute__((section("SECT"))) = { 0 }; |
10 | |
11 | // CHECK: @t14.x = internal global i32 0, section "SECT" |
12 | void t14(void) { |
13 | static int x __attribute__((section("SECT"))) = 0; |
14 | } |
15 | |
16 | // CHECK: @t18 = global i32 1, align 4 |
17 | extern int t18 __attribute__((weak_import)); |
18 | int t18 = 1; |
19 | |
20 | // CHECK: @t16 = extern_weak global i32 |
21 | extern int t16 __attribute__((weak_import)); |
22 | |
23 | // CHECK: @t6 = common protected global i32 0 |
24 | int t6 __attribute__((visibility("protected"))); |
25 | |
26 | // CHECK: @t12 = global i32 0, section "SECT" |
27 | int t12 __attribute__((section("SECT"))); |
28 | |
29 | // CHECK: @t9 = weak alias void (...), bitcast (void ()* @__t8 to void (...)*) |
30 | void __t8() {} |
31 | void t9() __attribute__((weak, alias("__t8"))); |
32 | |
33 | // CHECK: declare extern_weak i32 @t15() |
34 | int __attribute__((weak_import)) t15(void); |
35 | int t17() { |
36 | return t15() + t16; |
37 | } |
38 | |
39 | // CHECK: define void @t1() [[NR:#[0-9]+]] { |
40 | void t1() __attribute__((noreturn)); |
41 | void t1() { while (1) {} } |
42 | |
43 | // CHECK: define void @t2() [[NUW:#[0-9]+]] { |
44 | void t2() __attribute__((nothrow)); |
45 | void t2() {} |
46 | |
47 | // CHECK: define weak void @t3() [[NUW]] { |
48 | void t3() __attribute__((weak)); |
49 | void t3() {} |
50 | |
51 | // CHECK: define hidden void @t4() [[NUW]] { |
52 | void t4() __attribute__((visibility("hidden"))); |
53 | void t4() {} |
54 | |
55 | // CHECK: define void @t7() [[NR]] { |
56 | void t7() __attribute__((noreturn, nothrow)); |
57 | void t7() { while (1) {} } |
58 | |
59 | // CHECK: define void @t72() [[COLDDEF:#[0-9]+]] { |
60 | void t71(void) __attribute__((cold)); |
61 | void t72() __attribute__((cold)); |
62 | void t72() { t71(); } |
63 | // CHECK: call void @t71() [[COLDSITE:#[0-9]+]] |
64 | // CHECK: declare void @t71() [[COLDDECL:#[0-9]+]] |
65 | |
66 | // CHECK: define void @t10() [[NUW]] section "SECT" { |
67 | void t10(void) __attribute__((section("SECT"))); |
68 | void t10(void) {} |
69 | // CHECK: define void @t11() [[NUW]] section "SECT" { |
70 | void __attribute__((section("SECT"))) t11(void) {} |
71 | |
72 | // CHECK: define i32 @t19() [[NUW]] { |
73 | extern int t19(void) __attribute__((weak_import)); |
74 | int t19(void) { |
75 | return 10; |
76 | } |
77 | |
78 | // CHECK:define void @t20() [[NUW]] { |
79 | // CHECK: call void @abort() |
80 | // CHECK-NEXT: unreachable |
81 | void t20(void) { |
82 | __builtin_abort(); |
83 | } |
84 | |
85 | void (__attribute__((fastcall)) *fptr)(int); |
86 | void t21(void) { |
87 | fptr(10); |
88 | } |
89 | // CHECK: [[FPTRVAR:%[a-z0-9]+]] = load void (i32)*, void (i32)** @fptr |
90 | // CHECK-NEXT: call x86_fastcallcc void [[FPTRVAR]](i32 inreg 10) |
91 | |
92 | |
93 | // PR9356: We might want to err on this, but for now at least make sure we |
94 | // use the section in the definition. |
95 | void __attribute__((section(".foo"))) t22(void); |
96 | void __attribute__((section(".bar"))) t22(void) {} |
97 | |
98 | // CHECK: define void @t22() [[NUW]] section ".bar" |
99 | |
100 | // CHECK: define void @t23() [[NOCF_CHECK_FUNC:#[0-9]+]] |
101 | void __attribute__((nocf_check)) t23(void) {} |
102 | |
103 | // CHECK: call void %{{[a-z0-9]+}}() [[NOCF_CHECK_CALL:#[0-9]+]] |
104 | typedef void (*f_t)(void); |
105 | void t24(f_t f1) { |
106 | __attribute__((nocf_check)) f_t p = f1; |
107 | (*p)(); |
108 | } |
109 | |
110 | // CHECK: attributes [[NUW]] = { noinline nounwind{{.*}} } |
111 | // CHECK: attributes [[NR]] = { noinline noreturn nounwind{{.*}} } |
112 | // CHECK: attributes [[COLDDEF]] = { cold {{.*}}} |
113 | // CHECK: attributes [[COLDDECL]] = { cold {{.*}}} |
114 | // CHECK: attributes [[NOCF_CHECK_FUNC]] = { nocf_check {{.*}}} |
115 | // CHECK: attributes [[COLDSITE]] = { cold {{.*}}} |
116 | // CHECK: attributes [[NOCF_CHECK_CALL]] = { nocf_check } |
117 | |