Added extra test case to check proper handling of archaic array indexing: 4[A]

llvm-svn: 41147

1 files changed, 89 insertions, 0 deletions

diff --git a/clang/test/Sema/return-stack-addr.cpp b/clang/test/Sema/return-stack-addr.cpp
new file mode 100644
index 00000000000..a613b6b9b60
--- /dev/null
+++ b/clang/test/Sema/return-stack-addr.cpp
@@ -0,0 +1,89 @@
+// RUN: clang -parse-ast-check %s
+
+
+int* ret_local() {
+  int x = 1;
+  return &x; // expected-warning {{address of stack memory}}
+}
+
+int* ret_local_array() {
+  int x[10];
+  return x; // expected-warning {{address of stack memory}}
+}
+
+int* ret_local_array_element(int i) {
+  int x[10];
+  return &x[i]; // expected-warning {{address of stack memory}}
+}
+
+int *ret_local_array_element_reversed(int i) {
+  int x[10];
+  return &i[x]; // expected-warning {{address of stack memory}}
+}
+
+int* ret_local_array_element_const_index() {
+  int x[10];
+  return &x[2];  // expected-warning {{address of stack memory}}
+}
+
+int& ret_local_ref() {
+  int x = 1;
+  return x;  // expected-warning {{reference to stack memory}}
+}
+
+int* ret_local_addrOf() {
+  int x = 1;
+  return &*&x; // expected-warning {{address of stack memory}}
+}
+
+int* ret_local_addrOf_paren() {
+  int x = 1;
+  return (&(*(&x))); // expected-warning {{address of stack memory}}
+}
+
+int* ret_local_addrOf_ptr_arith() {
+  int x = 1;
+  return &*(&x+1); // expected-warning {{address of stack memory}}
+}
+
+int* ret_local_addrOf_ptr_arith2() {
+  int x = 1;
+  return &*(&x+1); // expected-warning {{address of stack memory}}
+}
+
+int* ret_local_field() {
+  struct { int x; } a;
+  return &a.x; // expected-warning {{address of stack memory}}
+}
+
+int& ret_local_field_ref() {
+  struct { int x; } a;
+  return a.x; // expected-warning {{reference to stack memory}}
+}
+
+int* ret_conditional(bool cond) {
+  int x = 1;
+  int y = 2;
+  return cond ? &x : &y; // expected-warning {{address of stack memory}}
+}
+
+int* ret_conditional_rhs(int *x, bool cond) {
+  int y = 1;
+  return cond ? x : &y;  // expected-warning {{address of stack memory}}
+}
+
+void* ret_c_cast() {
+  int x = 1;
+  return (void*) &x;  // expected-warning {{address of stack memory}}
+}
+
+int* ret_static_var() {
+  static int x = 1;
+  return &x;  // no warning.
+}
+
+int z = 1;
+
+int* ret_global() {
+  return &z;  // no warning.
+}
\ No newline at end of file