1 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-captured.c %s -o - -emit-llvm -fprofile-instr-generate | 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-instr-use=%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 debug_captured()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 main(int argc,const char * argv[])56 int main(int argc, const char *argv[]) { 57 debug_captured(); 58 return 0; 59 } 60