File: c99-variable-length-array.cpp

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (37 lines) | stat: -rw-r--r-- 768 bytes parent folder | download | duplicates (18)
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
35
36
37
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
struct X {
  X();
  ~X();
};

struct Y {
  Y();
  ~Y();
};

// CHECK-LABEL: define void @_Z1fiPPKc(
void f(int argc, const char* argv[]) {
  // CHECK: call void @_ZN1XC1Ev
  X x;
  // CHECK: call i8* @llvm.stacksave(
  const char *argv2[argc];
  // CHECK: call void @_ZN1YC1Ev
  Y y;
  for (int i = 0; i != argc; ++i)
    argv2[i] = argv[i];

  // CHECK: call void @_ZN1YD1Ev
  // CHECK: call void @llvm.stackrestore
  // CHECK: call void @_ZN1XD1Ev
  // CHECK: ret void
}

namespace PR11744 {
  // Make sure this doesn't crash; there was a use-after-free issue
  // for this testcase.
  template<typename T> int f(int n) {
    T arr[3][n];
    return 3;
  }
  int test = f<int>(0);
}