35 lines · cpp
1// RUN: %clang_cc1 -fxray-instrument -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s2 3// CHECK-LABEL: @_Z16alwaysInstrumentv4[[clang::xray_always_instrument]] void alwaysInstrument() {5 // Event types would normally come from calling __xray_register_event_type6 // from compiler-rt7 auto EventType = 1;8 static constexpr char kPhase[] = "instrument";9 __xray_typedevent(EventType, kPhase, 10);10 // CHECK: call void @llvm.xray.typedevent(i64 {{.*}}, ptr{{.*}}, i64 10)11}12 13// CHECK-LABEL: @_Z15neverInstrumentv14[[clang::xray_never_instrument]] void neverInstrument() {15 auto EventType = 2;16 static constexpr char kPhase[] = "never";17 __xray_typedevent(EventType, kPhase, 5);18 // CHECK-NOT: call void @llvm.xray.typedevent(i64 {{.*}}, ptr{{.*}}, i64 5)19}20 21// CHECK-LABEL: @_Z21conditionalInstrumenti22[[clang::xray_always_instrument]] void conditionalInstrument(int v) {23 auto TrueEventType = 3;24 auto UntrueEventType = 4;25 static constexpr char kTrue[] = "true";26 static constexpr char kUntrue[] = "untrue";27 if (v % 2)28 __xray_typedevent(TrueEventType, kTrue, 4);29 else30 __xray_typedevent(UntrueEventType, kUntrue, 6);31 32 // CHECK: call void @llvm.xray.typedevent(i64 {{.*}}, ptr{{.*}}, i64 4)33 // CHECK: call void @llvm.xray.typedevent(i64 {{.*}}, ptr{{.*}}, i64 6)34}35