1 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-captured.c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck -check-prefix=PGOGEN -check-prefix=PGOALL %s
2 
3 // RUN: llvm-profdata merge %S/Inputs/c-captured.proftext -o %t.profdata
4 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-captured.c %s -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata | FileCheck -check-prefix=PGOUSE -check-prefix=PGOALL %s
5 
6 // PGOGEN: @[[DCC:__profc_debug_captured]] = private global [3 x i64] zeroinitializer
7 // PGOGEN: @[[CSC:__profc_c_captured.c___captured_stmt]] = private global [2 x i64] zeroinitializer
8 // PGOGEN: @[[C1C:__profc_c_captured.c___captured_stmt.1]] = private global [3 x i64] zeroinitializer
9 
10 // PGOALL-LABEL: define void @debug_captured()
11 // PGOGEN: store {{.*}} @[[DCC]], i64 0, i64 0
12 void debug_captured() {
13   int x = 10;
14 
15   // Check both debug_captured counters, so we can do this all in one pass
16   // PGOGEN: store {{.*}} @[[DCC]], i64 0, i64 1
17   // PGOUSE: br {{.*}} !prof ![[DC1:[0-9]+]]
18   // PGOGEN: store {{.*}} @[[DCC]], i64 0, i64 2
19   // PGOUSE: br {{.*}} !prof ![[DC2:[0-9]+]]
20   // PGOALL: ret
21 
22   // PGOALL-LABEL: define internal void @__captured_stmt(
23   // PGOGEN: store {{.*}} @[[CSC]], i64 0, i64 0
24   #pragma clang __debug captured
25   {
26     // PGOGEN: store {{.*}} @[[CSC]], i64 0, i64 1
27     // PGOUSE: br {{.*}} !prof ![[CS1:[0-9]+]]
28     if (x) {}
29     // PGOALL: ret
30   }
31 
32   if (x) {} // This is DC1. Checked above.
33 
34   // PGOALL-LABEL: define internal void @__captured_stmt.1(
35   // PGOGEN: store {{.*}} @[[C1C]], i64 0, i64 0
36   #pragma clang __debug captured
37   {
38     // PGOGEN: store {{.*}} @[[C1C]], i64 0, i64 1
39     // PGOUSE: br {{.*}} !prof ![[C11:[0-9]+]]
40     for (int i = 0; i < x; ++i) {}
41     // PGOGEN: store {{.*}} @[[C1C]], i64 0, i64 2
42     // PGOUSE: br {{.*}} !prof ![[C12:[0-9]+]]
43     if (x) {}
44     // PGOALL: ret
45   }
46 
47   if (x) {} // This is DC2. Checked above.
48 }
49 
50 // PGOUSE-DAG: ![[DC1]] = !{!"branch_weights", i32 2, i32 1}
51 // PGOUSE-DAG: ![[DC2]] = !{!"branch_weights", i32 2, i32 1}
52 // PGOUSE-DAG: ![[CS1]] = !{!"branch_weights", i32 2, i32 1}
53 // PGOUSE-DAG: ![[C11]] = !{!"branch_weights", i32 11, i32 2}
54 // PGOUSE-DAG: ![[C12]] = !{!"branch_weights", i32 2, i32 1}
55 
56 int main(int argc, const char *argv[]) {
57   debug_captured();
58   return 0;
59 }
60