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
7typedef __INTPTR_TYPE__ intptr_t;
8
9int foo();
10int global;
11
12// Single statement
13void test1() {
14  int i = 0;
15  #pragma clang __debug captured
16  {
17    static float inner = 3.0;
18    (void)inner;
19    i++;
20  }
21  // CHECK-1: %struct.anon = type { i32* }
22  // CHECK-1: {{.+}} global float 3.0
23  //
24  // CHECK-1: @test1(
25  // CHECK-1: alloca %struct.anon
26  // CHECK-1: getelementptr inbounds %struct.anon, %struct.anon*
27  // CHECK-1: store i32* %i
28  // CHECK-1: call void @[[HelperName:__captured_stmt[\.0-9]+]]
29}
30
31// CHECK-1: define internal {{.*}}void @[[HelperName]](%struct.anon
32// CHECK-1:   getelementptr inbounds %struct.anon{{.*}}, i32 0, i32 0
33// CHECK-1:   load i32*, i32**
34// CHECK-1:   load i32, i32*
35// CHECK-1:   add nsw i32
36// CHECK-1:   store i32
37
38// Compound statement with local variable
39void test2(int x) {
40  #pragma clang __debug captured
41  {
42    int i;
43    for (i = 0; i < x; i++)
44      foo();
45  }
46  // CHECK-2: @test2(
47  // CHECK-2-NOT: %i
48  // CHECK-2: call void @[[HelperName:__captured_stmt[\.0-9]+]]
49}
50
51// CHECK-2: define internal {{.*}}void @[[HelperName]]
52// CHECK-2-NOT: }
53// CHECK-2:   %i = alloca i32
54
55// Capture array
56void test3(int size) {
57  int arr[] = {1, 2, 3, 4, 5};
58  int vla_arr[size];
59  #pragma clang __debug captured
60  {
61    arr[2] = vla_arr[size - 1];
62  }
63  // CHECK-3: @test3(
64  // CHECK-3: alloca [5 x i32]
65  // CHECK-3: call void @__captured_stmt
66}
67
68// Capture VLA array
69void test4(intptr_t size, intptr_t vla_arr[size]) {
70  #pragma clang __debug captured
71  {
72    vla_arr[0] = 1;
73  }
74  // CHECK-3: test4([[INTPTR_T:i.+]] {{.*}}[[SIZE_ARG:%.+]], [[INTPTR_T]]*
75  // CHECK-3: store [[INTPTR_T]] {{.*}}[[SIZE_ARG]], [[INTPTR_T]]* [[SIZE_ADDR:%.+]],
76  // CHECK-3: [[SIZE:%.+]] = load [[INTPTR_T]], [[INTPTR_T]]* [[SIZE_ADDR]],
77  // CHECK-3: [[REF:%.+]] = getelementptr inbounds
78  // CHECK-3: store [[INTPTR_T]] [[SIZE]], [[INTPTR_T]]* [[REF]]
79  // CHECK-3: call void @__captured_stmt
80}
81
82void dont_capture_global() {
83  static int s;
84  extern int e;
85  #pragma clang __debug captured
86  {
87    global++;
88    s++;
89    e++;
90  }
91
92  // CHECK-GLOBALS: %[[Capture:struct\.anon[\.0-9]*]] = type {}
93  // CHECK-GLOBALS: call void @__captured_stmt[[HelperName:[\.0-9]+]](%[[Capture]]
94}
95
96// CHECK-GLOBALS: define internal {{.*}}void @__captured_stmt[[HelperName]]
97// CHECK-GLOBALS-NOT: ret
98// CHECK-GLOBALS:   load i32, i32* @global
99// CHECK-GLOBALS:   load i32, i32* @
100// CHECK-GLOBALS:   load i32, i32* @e
101