1 // RUN: %clang_cc1 -triple i386-pc-win32 %s -emit-llvm -fms-compatibility -O2 -disable-llvm-passes -o - | FileCheck %s
2
3 __declspec(selectany) int x1 = 1;
4 const __declspec(selectany) int x2 = 2;
5 // CHECK: @x1 = weak_odr dso_local global i32 1, comdat, align 4
6 // CHECK: @x2 = weak_odr dso_local constant i32 2, comdat, align 4
7
8 // selectany turns extern variable declarations into definitions.
9 __declspec(selectany) int x3;
10 extern __declspec(selectany) int x4;
11 // CHECK: @x3 = weak_odr dso_local global i32 0, comdat, align 4
12 // CHECK: @x4 = weak_odr dso_local global i32 0, comdat, align 4
13
14 struct __declspec(align(16)) S {
15 char x;
16 };
17 union { struct S s; } u;
18
19 // CHECK: @u = {{.*}}zeroinitializer, align 16
20
21
22 // CHECK: define dso_local void @t3() [[NAKED:#[0-9]+]] {
t3()23 __declspec(naked) void t3() {}
24
25 // CHECK: define dso_local void @t22() [[NUW:#[0-9]+]]
26 void __declspec(nothrow) t22();
t22()27 void t22() {}
28
29 // CHECK: define dso_local void @t2() [[NI:#[0-9]+]] {
t2()30 __declspec(noinline) void t2() {}
31
32 // CHECK: call void @f20_t() [[NR:#[0-9]+]]
33 __declspec(noreturn) void f20_t(void);
f20(void)34 void f20(void) { f20_t(); }
35
36 __declspec(noalias) void noalias_callee(int *x);
37 // CHECK: call void @noalias_callee({{.*}}) [[NA:#[0-9]+]]
noalias_caller(int * x)38 void noalias_caller(int *x) { noalias_callee(x); }
39
40 // CHECK: attributes [[NAKED]] = { naked noinline nounwind{{.*}} }
41 // CHECK: attributes [[NUW]] = { nounwind{{.*}} }
42 // CHECK: attributes [[NI]] = { noinline nounwind{{.*}} }
43 // CHECK: attributes [[NR]] = { noreturn }
44 // CHECK: attributes [[NA]] = { argmemonly nounwind{{.*}} }
45