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gerrit-public.fairphone.software / platform / external / clang / 5ac28332220692f7b0095a7fd0de2c230ea6cd82 / . / test / CodeGen / attributes.c
blob: 770ce766dfbad5aee7f79044b71b9fa7fa899a2f [file] [log] [blame]
Daniel Dunbara5728872009-12-15 20:14:24 +0000[diff] [blame]1// RUN: %clang_cc1 -emit-llvm -triple i386-linux-gnu -o %t %s
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]2// RUN: FileCheck --input-file=%t %s
Daniel Dunbard58139e2008-09-27 00:39:13 +0000[diff] [blame]3
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]4// CHECK: @t5 = weak global i32 2
Chris Lattnerddee4232008-03-03 03:28:21 +0000[diff] [blame]5int t5 __attribute__((weak)) = 2;
6
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]7// CHECK: @t13 = global %0 zeroinitializer, section "SECT"
Daniel Dunbar17f194f2009-02-12 17:28:23 +0000[diff] [blame]8struct s0 { int x; };
Daniel Dunbar30510ab2009-02-12 23:32:54 +0000[diff] [blame]9struct s0 t13 __attribute__((section("SECT"))) = { 0 };
10
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]11// CHECK: @t14.x = internal global i32 0, section "SECT"
Daniel Dunbar30510ab2009-02-12 23:32:54 +0000[diff] [blame]12void t14(void) {
13 static int x __attribute__((section("SECT"))) = 0;
14}
Daniel Dunbar5e273142009-03-06 16:20:49 +0000[diff] [blame]15
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]16// CHECK: @t18 = global i32 1, align 4
17extern int t18 __attribute__((weak_import));
18int t18 = 1;
19
20// CHECK: @t16 = extern_weak global i32
Daniel Dunbar5e273142009-03-06 16:20:49 +0000[diff] [blame]21extern int t16 __attribute__((weak_import));
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]22
23// CHECK: @t6 = common protected global i32 0
24int t6 __attribute__((visibility("protected")));
25
26// CHECK: @t12 = global i32 0, section "SECT"
27int t12 __attribute__((section("SECT")));
28
29// CHECK: @t9 = alias weak bitcast (void ()* @__t8 to void (...)*)
30void __t8() {}
31void t9() __attribute__((weak, alias("__t8")));
32
33// CHECK: declare extern_weak i32 @t15()
34int __attribute__((weak_import)) t15(void);
Daniel Dunbar5e273142009-03-06 16:20:49 +0000[diff] [blame]35int t17() {
36 return t15() + t16;
37}
38
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]39// CHECK: define void @t1() noreturn nounwind {
40void t1() __attribute__((noreturn));
41void t1() { while (1) {} }
Daniel Dunbar5e273142009-03-06 16:20:49 +0000[diff] [blame]42
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]43// CHECK: define void @t2() nounwind {
44void t2() __attribute__((nothrow));
45void t2() {}
46
47// CHECK: define weak void @t3() nounwind {
48void t3() __attribute__((weak));
49void t3() {}
50
51// CHECK: define hidden void @t4() nounwind {
52void t4() __attribute__((visibility("hidden")));
53void t4() {}
54
55// CHECK: define void @t7() noreturn nounwind {
56void t7() __attribute__((noreturn, nothrow));
57void t7() { while (1) {} }
58
59// CHECK: define void @t10() nounwind section "SECT" {
60void t10(void) __attribute__((section("SECT")));
61void t10(void) {}
62// CHECK: define void @t11() nounwind section "SECT" {
63void __attribute__((section("SECT"))) t11(void) {}
64
65// CHECK: define i32 @t19() nounwind {
Daniel Dunbar2968b772009-06-05 22:58:34 +0000[diff] [blame]66extern int t19(void) __attribute__((weak_import));
67int t19(void) {
68 return 10;
69}
70
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]71// CHECK:define void @t20() nounwind {
Daniel Dunbar131c9812009-11-11 03:48:34 +0000[diff] [blame]72// CHECK: call void @abort()
Mike Stump31c51412009-10-06 22:58:45 +0000[diff] [blame]73// CHECK-NEXT: unreachable
74void t20(void) {
75 __builtin_abort();
76}
John McCall04a67a62010-02-05 21:31:56 +0000[diff] [blame]77
78void (__attribute__((fastcall)) *fptr)(int);
79void t21(void) {
80 fptr(10);
81}
82// CHECK: [[FPTRVAR:%[a-z0-9]+]] = load void (i32)** @fptr
83// CHECK-NEXT: call x86_fastcallcc void [[FPTRVAR]](i32 10)