60 lines · c
1// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-captured.c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck -allow-deprecated-dag-overlap -check-prefix=PGOGEN -check-prefix=PGOALL %s2 3// RUN: llvm-profdata merge %S/Inputs/c-captured.proftext -o %t.profdata4// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-captured.c %s -o - -emit-llvm -fprofile-instrument-use=clang -fprofile-instrument-use-path=%t.profdata | FileCheck -allow-deprecated-dag-overlap -check-prefix=PGOUSE -check-prefix=PGOALL %s5 6// PGOGEN: @[[DCC:__profc_debug_captured]] = private global [3 x i64] zeroinitializer7// PGOGEN: @[[CSC:__profc_c_captured.c___captured_stmt]] = private global [2 x i64] zeroinitializer8// PGOGEN: @[[C1C:__profc_c_captured.c___captured_stmt.1]] = private global [3 x i64] zeroinitializer9 10// PGOALL-LABEL: define{{.*}} void @debug_captured()11// PGOGEN: store {{.*}} @[[DCC]]12void debug_captured(void) {13 int x = 10;14 15// Check both debug_captured counters, so we can do this all in one pass16// PGOGEN: store {{.*}} @[[DCC]], i32 0, i32 117// PGOUSE: br {{.*}} !prof ![[DC1:[0-9]+]]18// PGOGEN: store {{.*}} @[[DCC]], i32 0, i32 219// PGOUSE: br {{.*}} !prof ![[DC2:[0-9]+]]20// PGOALL: ret21 22// PGOALL-LABEL: define internal void @__captured_stmt(23// PGOGEN: store {{.*}} @[[CSC]]24#pragma clang __debug captured25 {26 // PGOGEN: store {{.*}} @[[CSC]], i32 0, i32 127 // PGOUSE: br {{.*}} !prof ![[CS1:[0-9]+]]28 if (x) {}29 // PGOALL: ret30 }31 32 if (x) {} // This is DC1. Checked above.33 34// PGOALL-LABEL: define internal void @__captured_stmt.1(35// PGOGEN: store {{.*}} @[[C1C]]36#pragma clang __debug captured37 {38 // PGOGEN: store {{.*}} @[[C1C]], i32 0, i32 139 // PGOUSE: br {{.*}} !prof ![[C11:[0-9]+]]40 for (int i = 0; i < x; ++i) {}41 // PGOGEN: store {{.*}} @[[C1C]], i32 0, i32 242 // PGOUSE: br {{.*}} !prof ![[C12:[0-9]+]]43 if (x) {}44 // PGOALL: ret45 }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 56int main(int argc, const char *argv[]) {57 debug_captured();58 return 0;59}60