1 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o %t
2 // RUN: FileCheck %s -input-file=%t -check-prefix=CHECK-GLOBALS
3 // RUN: FileCheck %s -input-file=%t -check-prefix=CHECK-1
4 // RUN: FileCheck %s -input-file=%t -check-prefix=CHECK-2
5 // RUN: FileCheck %s -input-file=%t -check-prefix=CHECK-3
6
7 int foo();
8 int global;
9
10 // Single statement
test1()11 void test1() {
12 int i = 0;
13 #pragma clang __debug captured
14 {
15 i++;
16 }
17 // CHECK-1: %struct.anon = type { i32* }
18 //
19 // CHECK-1: test1
20 // CHECK-1: alloca %struct.anon
21 // CHECK-1: getelementptr inbounds %struct.anon*
22 // CHECK-1: store i32* %i
23 // CHECK-1: call void @[[HelperName:__captured_stmt[0-9]+]]
24 }
25
26 // CHECK-1: define internal void @[[HelperName]](%struct.anon
27 // CHECK-1: getelementptr inbounds %struct.anon{{.*}}, i32 0, i32 0
28 // CHECK-1: load i32**
29 // CHECK-1: load i32*
30 // CHECK-1: add nsw i32
31 // CHECK-1: store i32
32
33 // Compound statement with local variable
test2(int x)34 void test2(int x) {
35 #pragma clang __debug captured
36 {
37 int i;
38 for (i = 0; i < x; i++)
39 foo();
40 }
41 // CHECK-2: test2
42 // CHECK-2-NOT: %i
43 // CHECK-2: call void @[[HelperName:__captured_stmt[0-9]+]]
44 }
45
46 // CHECK-2: define internal void @[[HelperName]]
47 // CHECK-2-NOT: }
48 // CHECK-2: %i = alloca i32
49
50 // Capture array
test3(int size)51 void test3(int size) {
52 int arr[] = {1, 2, 3, 4, 5};
53 int vla_arr[size];
54 #pragma clang __debug captured
55 {
56 arr[2] = vla_arr[size - 1];
57 }
58 // CHECK-3: test3
59 // CHECK-3: alloca [5 x i32]
60 // CHECK-3: call void @__captured_stmt
61 }
62
63 // Capture VLA array
test4(int size,int vla_arr[size])64 void test4(int size, int vla_arr[size]) {
65 #pragma clang __debug captured
66 {
67 vla_arr[0] = 1;
68 }
69 // CHECK-3: test4([[INT:i.+]] {{.*}}[[SIZE:%.+]], [[INT]]*
70 // CHECK-3: store [[INT]] {{.*}}[[SIZE]], [[INT]]* [[SIZE_ADDR:%.+]],
71 // CHECK-3: [[REF:%.+]] = getelementptr inbounds
72 // CHECK-3: store [[INT]]* [[SIZE_ADDR]], [[INT]]** [[REF]]
73 // CHECK-3: call void @__captured_stmt
74 }
75
dont_capture_global()76 void dont_capture_global() {
77 static int s;
78 extern int e;
79 #pragma clang __debug captured
80 {
81 global++;
82 s++;
83 e++;
84 }
85
86 // CHECK-GLOBALS: %[[Capture:struct\.anon[\.0-9]*]] = type {}
87 // CHECK-GLOBALS: call void @__captured_stmt[[HelperName:[0-9]+]](%[[Capture]]
88 }
89
90 // CHECK-GLOBALS: define internal void @__captured_stmt[[HelperName]]
91 // CHECK-GLOBALS-NOT: ret
92 // CHECK-GLOBALS: load i32* @global
93 // CHECK-GLOBALS: load i32* @
94 // CHECK-GLOBALS: load i32* @e
95