1 // RUN: %clang_cc1 -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
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
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
51 void test3() {
52   int arr[] = {1, 2, 3, 4, 5};
53   #pragma clang __debug captured
54   {
55     arr[2] = arr[1];
56   }
57   // CHECK-3: test3
58   // CHECK-3: alloca [5 x i32]
59   // CHECK-3: call void @__captured_stmt
60 }
61 
62 void dont_capture_global() {
63   static int s;
64   extern int e;
65   #pragma clang __debug captured
66   {
67     global++;
68     s++;
69     e++;
70   }
71 
72   // CHECK-GLOBALS: %[[Capture:struct\.anon[\.0-9]*]] = type {}
73   // CHECK-GLOBALS: call void @__captured_stmt[[HelperName:[0-9]+]](%[[Capture]]
74 }
75 
76 // CHECK-GLOBALS: define internal void @__captured_stmt[[HelperName]]
77 // CHECK-GLOBALS-NOT: ret
78 // CHECK-GLOBALS:   load i32* @global
79 // CHECK-GLOBALS:   load i32* @
80 // CHECK-GLOBALS:   load i32* @e
81