29 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 static constexpr char kPhase[] = "instrument";6 __xray_customevent(kPhase, 10);7 // CHECK: call void @llvm.xray.customevent(ptr{{.*}}, i64 10)8}9 10// CHECK-LABEL: @_Z15neverInstrumentv11[[clang::xray_never_instrument]] void neverInstrument() {12 static constexpr char kPhase[] = "never";13 __xray_customevent(kPhase, 5);14 // CHECK-NOT: call void @llvm.xray.customevent(15}16 17// CHECK-LABEL: @_Z21conditionalInstrumenti18[[clang::xray_always_instrument]] void conditionalInstrument(int v) {19 static constexpr char kTrue[] = "true";20 static constexpr char kUntrue[] = "untrue";21 if (v % 2)22 __xray_customevent(kTrue, 4);23 else24 __xray_customevent(kUntrue, 6);25 26 // CHECK: call void @llvm.xray.customevent(ptr{{.*}}, i64 4)27 // CHECK: call void @llvm.xray.customevent(ptr{{.*}}, i64 6)28}29