File: xray-customevent.cpp

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,388 kB
  • sloc: cpp: 7,438,767; ansic: 1,393,871; asm: 1,012,926; python: 241,728; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (28 lines) | stat: -rw-r--r-- 1,017 bytes parent folder | download | duplicates (12) 
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
 
// 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() {
  static constexpr char kPhase[] = "instrument";
  __xray_customevent(kPhase, 10);
  // CHECK: call void @llvm.xray.customevent(ptr{{.*}}, i64 10)
}

// CHECK-LABEL: @_Z15neverInstrumentv
[[clang::xray_never_instrument]] void neverInstrument() {
  static constexpr char kPhase[] = "never";
  __xray_customevent(kPhase, 5);
  // CHECK-NOT: call void @llvm.xray.customevent(
}

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

  // CHECK: call void @llvm.xray.customevent(ptr{{.*}}, i64 4)
  // CHECK: call void @llvm.xray.customevent(ptr{{.*}}, i64 6)
}