xref: /minix3/external/bsd/llvm/dist/clang/test/CodeGenCXX/c99-variable-length-array.cpp (revision f4a2713ac843a11c696ec80c0a5e3e5d80b4d338)
1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
2*f4a2713aSLionel Sambuc struct X {
3*f4a2713aSLionel Sambuc   X();
4*f4a2713aSLionel Sambuc   ~X();
5*f4a2713aSLionel Sambuc };
6*f4a2713aSLionel Sambuc 
7*f4a2713aSLionel Sambuc struct Y {
8*f4a2713aSLionel Sambuc   Y();
9*f4a2713aSLionel Sambuc   ~Y();
10*f4a2713aSLionel Sambuc };
11*f4a2713aSLionel Sambuc 
12*f4a2713aSLionel Sambuc // CHECK-LABEL: define void @_Z1fiPPKc(
f(int argc,const char * argv[])13*f4a2713aSLionel Sambuc void f(int argc, const char* argv[]) {
14*f4a2713aSLionel Sambuc   // CHECK: call void @_ZN1XC1Ev
15*f4a2713aSLionel Sambuc   X x;
16*f4a2713aSLionel Sambuc   // CHECK: call i8* @llvm.stacksave(
17*f4a2713aSLionel Sambuc   const char *argv2[argc];
18*f4a2713aSLionel Sambuc   // CHECK: call void @_ZN1YC1Ev
19*f4a2713aSLionel Sambuc   Y y;
20*f4a2713aSLionel Sambuc   for (int i = 0; i != argc; ++i)
21*f4a2713aSLionel Sambuc     argv2[i] = argv[i];
22*f4a2713aSLionel Sambuc 
23*f4a2713aSLionel Sambuc   // CHECK: call void @_ZN1YD1Ev
24*f4a2713aSLionel Sambuc   // CHECK: call void @llvm.stackrestore
25*f4a2713aSLionel Sambuc   // CHECK: call void @_ZN1XD1Ev
26*f4a2713aSLionel Sambuc   // CHECK: ret void
27*f4a2713aSLionel Sambuc }
28*f4a2713aSLionel Sambuc 
29*f4a2713aSLionel Sambuc namespace PR11744 {
30*f4a2713aSLionel Sambuc   // Make sure this doesn't crash; there was a use-after-free issue
31*f4a2713aSLionel Sambuc   // for this testcase.
f(int n)32*f4a2713aSLionel Sambuc   template<typename T> int f(int n) {
33*f4a2713aSLionel Sambuc     T arr[3][n];
34*f4a2713aSLionel Sambuc     return 3;
35*f4a2713aSLionel Sambuc   }
36*f4a2713aSLionel Sambuc   int test = f<int>(0);
37*f4a2713aSLionel Sambuc }
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