1 ; RUN: opt < %s -asan -asan-initialization-order -S | FileCheck %s
2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
3 target triple = "x86_64-unknown-linux-gnu"
4 @xxx = internal global i32 0, align 4 ; With dynamic initializer.
5 @yyy = internal global i32 0, align 4 ; W/o dynamic initializer.
6 ; Clang will emit the following metadata identifying @xxx as dynamically
8 !0 = metadata !{i32* @xxx}
9 !llvm.asan.dynamically_initialized_globals = !{!0}
11 define i32 @initializer() uwtable {
16 define internal void @__cxx_global_var_init() section ".text.startup" {
18 %call = call i32 @initializer()
19 store i32 %call, i32* @xxx, align 4
23 define internal void @_GLOBAL__I_a() address_safety section ".text.startup" {
25 call void @__cxx_global_var_init()
29 ; Clang indicated that @xxx was dynamically initailized.
30 ; __asan_{before,after}_dynamic_init should be called from _GLOBAL__I_a
32 ; CHECK: define internal void @_GLOBAL__I_a
34 ; CHECK: call void @__asan_before_dynamic_init
35 ; CHECK: call void @__cxx_global_var_init
36 ; CHECK: call void @__asan_after_dynamic_init
39 ; Check that xxx is instrumented.
40 define void @touch_xxx() address_safety {
41 store i32 0, i32 *@xxx, align 4
43 ; CHECK: define void @touch_xxx
44 ; CHECK: call void @__asan_report_store4
48 ; Check that yyy is NOT instrumented (as it does not have dynamic initializer).
49 define void @touch_yyy() address_safety {
50 store i32 0, i32 *@yyy, align 4
52 ; CHECK: define void @touch_yyy
53 ; CHECK-NOT: call void @__asan_report_store4