File: xray-typedevent.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (34 lines) | stat: -rw-r--r-- 1,325 bytes parent folder | download | duplicates (14)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
// RUN: %clang_cc1 -fxray-instrument -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s

// CHECK-LABEL: @_Z16alwaysInstrumentv
[[clang::xray_always_instrument]] void alwaysInstrument() {
  // Event types would normally come from calling __xray_register_event_type
  // from compiler-rt
  auto EventType = 1;
  static constexpr char kPhase[] = "instrument";
  __xray_typedevent(EventType, kPhase, 10);
  // CHECK: call void @llvm.xray.typedevent(i16 {{.*}}, i8*{{.*}}, i32 10)
}

// CHECK-LABEL: @_Z15neverInstrumentv
[[clang::xray_never_instrument]] void neverInstrument() {
  auto EventType = 2;
  static constexpr char kPhase[] = "never";
  __xray_typedevent(EventType, kPhase, 5);
  // CHECK-NOT: call void @llvm.xray.typedevent(i16 {{.*}}, i8*{{.*}}, i32 5)
}

// CHECK-LABEL: @_Z21conditionalInstrumenti
[[clang::xray_always_instrument]] void conditionalInstrument(int v) {
  auto TrueEventType = 3;
  auto UntrueEventType = 4;
  static constexpr char kTrue[] = "true";
  static constexpr char kUntrue[] = "untrue";
  if (v % 2)
    __xray_typedevent(TrueEventType, kTrue, 4);
  else
    __xray_typedevent(UntrueEventType, kUntrue, 6);

  // CHECK: call void @llvm.xray.typedevent(i16 {{.*}}, i8*{{.*}}, i32 4)
  // CHECK: call void @llvm.xray.typedevent(i16 {{.*}}, i8*{{.*}}, i32 6)
}