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 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
test2(int x)39 void 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
test3(int size)56 void 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
test4(intptr_t size,intptr_t vla_arr[size])69 void 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
dont_capture_global()82 void 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