1 ; RUN: opt < %s -asan -asan-module -asan-globals-live-support=0 -mtriple=x86_64-unknown-linux-gnu -S | FileCheck --check-prefixes=CHECK,CHECK-S3 %s
2 ; RUN: opt < %s -asan -asan-module -asan-globals-live-support=0 -mtriple=x86_64-apple-macosx10.11.0 -S | FileCheck --check-prefixes=CHECK,CHECK-S3 %s
3 ; RUN: opt < %s -asan -asan-module -asan-globals-live-support=0 -mtriple=x86_64-pc-windows-msvc19.0.24215 -S | FileCheck --check-prefixes=CHECK,CHECK-S3 %s
4 ; RUN: opt < %s -asan -asan-module -asan-globals-live-support=0 -asan-mapping-scale=5 -mtriple=x86_64-unknown-linux-gnu -S | FileCheck --check-prefixes=CHECK,CHECK-S5 %s
6 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
9 @global = global i32 0, align 4
10 @dyn_init_global = global i32 0, align 4
11 @blacklisted_global = global i32 0, align 4
12 @_ZZ4funcvE10static_var = internal global i32 0, align 4
13 @.str = private unnamed_addr constant [14 x i8] c"Hello, world!\00", align 1
14 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_asan_globals.cpp, i8* null }]
16 ; Check that globals were instrumented:
17 ; CHECK: @global = global { i32, [60 x i8] } zeroinitializer, align 32
18 ; CHECK: @.str = internal constant { [14 x i8], [50 x i8] } { [14 x i8] c"Hello, world!\00", [50 x i8] zeroinitializer }{{.*}}, align 32
20 ; Check emitted location descriptions:
21 ; CHECK: [[VARNAME:@___asan_gen_.[0-9]+]] = private unnamed_addr constant [7 x i8] c"global\00", align 1
22 ; CHECK: [[FILENAME:@___asan_gen_.[0-9]+]] = private unnamed_addr constant [22 x i8] c"/tmp/asan-globals.cpp\00", align 1
23 ; CHECK: [[LOCDESCR:@___asan_gen_.[0-9]+]] = private unnamed_addr constant { [22 x i8]*, i32, i32 } { [22 x i8]* [[FILENAME]], i32 5, i32 5 }
25 ; Check that location descriptors and global names were passed into __asan_register_globals:
26 ; CHECK: i64 ptrtoint ([7 x i8]* [[VARNAME]] to i64)
27 ; CHECK: i64 ptrtoint ({ [22 x i8]*, i32, i32 }* [[LOCDESCR]] to i64)
28 ; Check alignment of metadata_array.
29 ; CHECK-S5-SAME: {{align 32$}}
31 ; Function Attrs: nounwind sanitize_address
32 define internal void @__cxx_global_var_init() #0 section ".text.startup" {
34 %0 = load i32, i32* @global, align 4
35 store i32 %0, i32* @dyn_init_global, align 4
39 ; Function Attrs: nounwind sanitize_address
40 define void @_Z4funcv() #1 {
42 %literal = alloca i8*, align 8
43 store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i32 0, i32 0), i8** %literal, align 8
47 ; Function Attrs: nounwind sanitize_address
48 define internal void @_GLOBAL__sub_I_asan_globals.cpp() #0 section ".text.startup" {
50 call void @__cxx_global_var_init()
54 attributes #0 = { nounwind sanitize_address }
55 attributes #1 = { nounwind sanitize_address "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
57 !llvm.asan.globals = !{!0, !1, !2, !3, !4}
60 !0 = !{i32* @global, !6, !"global", i1 false, i1 false}
61 !1 = !{i32* @dyn_init_global, !7, !"dyn_init_global", i1 true, i1 false}
62 !2 = !{i32* @blacklisted_global, null, null, i1 false, i1 true}
63 !3 = !{i32* @_ZZ4funcvE10static_var, !8, !"static_var", i1 false, i1 false}
64 !4 = !{[14 x i8]* @.str, !9, !"<string literal>", i1 false, i1 false}
66 !5 = !{!"clang version 3.5.0 (211282)"}
68 !6 = !{!"/tmp/asan-globals.cpp", i32 5, i32 5}
69 !7 = !{!"/tmp/asan-globals.cpp", i32 7, i32 5}
70 !8 = !{!"/tmp/asan-globals.cpp", i32 12, i32 14}
71 !9 = !{!"/tmp/asan-globals.cpp", i32 14, i32 25}