llvm-project/clang/test/CodeGenCXX/c99-variable-length-array.cpp

38 lines
794 B
C++

// RUN: %clang_cc1 -no-opaque-pointers -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);
}