File: unreachable.cpp

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (25 lines) | stat: -rw-r--r-- 1,137 bytes parent folder | download | duplicates (36)
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
// RUN: %clang %S/Inputs/returns-unexpectedly.c -O3 -c -o %t.ru.o
// RUN: %clangxx -fsanitize=unreachable -O3 -o %t %s %t.ru.o
// RUN: not %run %t builtin 2>&1 | FileCheck %s -check-prefix=BUILTIN
// RUN: not %run %t noreturn-callee-marked 2>&1 | FileCheck %s -check-prefix=NORETURN1
// RUN: not %run %t noreturn-caller-marked 2>&1 | FileCheck %s -check-prefix=NORETURN2

#include <string.h>

void __attribute__((noreturn)) callee_marked_noreturn() {
  // NORETURN1: unreachable.cpp:[[@LINE+1]]:1: runtime error: execution reached an unreachable program point
}

extern "C" void __attribute__((noreturn)) returns_unexpectedly();

int main(int, char **argv) {
  if (strcmp(argv[1], "builtin") == 0)
    // BUILTIN: unreachable.cpp:[[@LINE+1]]:5: runtime error: execution reached an unreachable program point
    __builtin_unreachable();
  else if (strcmp(argv[1], "noreturn-callee-marked") == 0)
    callee_marked_noreturn();
  else if (strcmp(argv[1], "noreturn-caller-marked") == 0)
    // NORETURN2: unreachable.cpp:[[@LINE+1]]:5: runtime error: execution reached an unreachable program point
    returns_unexpectedly();
  return 0;
}