File: unnecessary-value-param-crash.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 (23 lines) | stat: -rw-r--r-- 483 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
// RUN: %check_clang_tidy  -std=c++14-or-later %s performance-unnecessary-value-param %t

// The test case used to crash clang-tidy.
// https://github.com/llvm/llvm-project/issues/108963

struct A
{
  template<typename T> A(T&&) {}
};

struct B
{
  ~B();
};

struct C
{
  A a;
  C(B, int i) : a(i) {}
  // CHECK-MESSAGES: [[@LINE-1]]:6: warning: the parameter #1 is copied for each invocation but only used as a const reference; consider making it a const reference
};

C c(B(), 0);