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-rw-r--r--clang/test/CodeGenCXX/c99-variable-length-array.cpp37
1 files changed, 37 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/c99-variable-length-array.cpp b/clang/test/CodeGenCXX/c99-variable-length-array.cpp
new file mode 100644
index 0000000..d486f9b
--- /dev/null
+++ b/clang/test/CodeGenCXX/c99-variable-length-array.cpp
@@ -0,0 +1,37 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
+struct X {
+ X();
+ ~X();
+};
+
+struct Y {
+ Y();
+ ~Y();
+};
+
+// CHECK: 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);
+}