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 typedef __INTPTR_TYPE__ intptr_t;
8
9 int foo();
10 int global;
11
12 // Single statement
test1()13 void test1() {
14 int i = 0;
15 #pragma clang __debug captured
16 {
17 i++;
18 }
19 // CHECK-1: %struct.anon = type { i32* }
20 //
21 // CHECK-1: test1
22 // CHECK-1: alloca %struct.anon
23 // CHECK-1: getelementptr inbounds %struct.anon*
24 // CHECK-1: store i32* %i
25 // CHECK-1: call void @[[HelperName:__captured_stmt[0-9]+]]
26 }
27
28 // CHECK-1: define internal void @[[HelperName]](%struct.anon
29 // CHECK-1: getelementptr inbounds %struct.anon{{.*}}, i32 0, i32 0
30 // CHECK-1: load i32**
31 // CHECK-1: load i32*
32 // CHECK-1: add nsw i32
33 // CHECK-1: store i32
34
35 // Compound statement with local variable
test2(int x)36 void test2(int x) {
37 #pragma clang __debug captured
38 {
39 int i;
40 for (i = 0; i < x; i++)
41 foo();
42 }
43 // CHECK-2: test2
44 // CHECK-2-NOT: %i
45 // CHECK-2: call void @[[HelperName:__captured_stmt[0-9]+]]
46 }
47
48 // CHECK-2: define internal void @[[HelperName]]
49 // CHECK-2-NOT: }
50 // CHECK-2: %i = alloca i32
51
52 // Capture array
test3(int size)53 void test3(int size) {
54 int arr[] = {1, 2, 3, 4, 5};
55 int vla_arr[size];
56 #pragma clang __debug captured
57 {
58 arr[2] = vla_arr[size - 1];
59 }
60 // CHECK-3: test3
61 // CHECK-3: alloca [5 x i32]
62 // CHECK-3: call void @__captured_stmt
63 }
64
65 // Capture VLA array
test4(intptr_t size,intptr_t vla_arr[size])66 void test4(intptr_t size, intptr_t vla_arr[size]) {
67 #pragma clang __debug captured
68 {
69 vla_arr[0] = 1;
70 }
71 // CHECK-3: test4([[INTPTR_T:i.+]] {{.*}}[[SIZE_ARG:%.+]], [[INTPTR_T]]*
72 // CHECK-3: store [[INTPTR_T]] {{.*}}[[SIZE_ARG]], [[INTPTR_T]]* [[SIZE_ADDR:%.+]],
73 // CHECK-3: [[SIZE:%.+]] = load [[INTPTR_T]]* [[SIZE_ADDR]],
74 // CHECK-3: [[REF:%.+]] = getelementptr inbounds
75 // CHECK-3: store [[INTPTR_T]] [[SIZE]], [[INTPTR_T]]* [[REF]]
76 // CHECK-3: call void @__captured_stmt
77 }
78
dont_capture_global()79 void dont_capture_global() {
80 static int s;
81 extern int e;
82 #pragma clang __debug captured
83 {
84 global++;
85 s++;
86 e++;
87 }
88
89 // CHECK-GLOBALS: %[[Capture:struct\.anon[\.0-9]*]] = type {}
90 // CHECK-GLOBALS: call void @__captured_stmt[[HelperName:[0-9]+]](%[[Capture]]
91 }
92
93 // CHECK-GLOBALS: define internal void @__captured_stmt[[HelperName]]
94 // CHECK-GLOBALS-NOT: ret
95 // CHECK-GLOBALS: load i32* @global
96 // CHECK-GLOBALS: load i32* @
97 // CHECK-GLOBALS: load i32* @e
98