New testcases, which WORK with LLVMG++ and the CBE.

llvm-svn: 8158

test/Regression/C++Frontend/EH/simple_throw.cpp

@@ -0,0 +1,13 @@
+// Test throwing a constant int
+#include <stdio.h>
+
+static void foo() { throw 5; }
+int main() {
+	try {
+		foo();
+	} catch (...) {
+		printf("All ok\n");
+		return 0;
+	}
+	return 1;
+}

test/Regression/C++Frontend/EH/throw_rethrow_test.cpp

@@ -0,0 +1,40 @@
+// This tests hard situations for throwing, including the case where an
+// exception is active in more than one handler at a time (ie, it needs
+// refcounting)
+#include <cstdio>
+
+struct foo {
+  int i;
+  foo() : i(1) { }
+  foo(const foo&) : i(2) {}
+};
+
+int callee(unsigned i) {
+  if (i < 3) throw (int)i;
+  if (i < 6) throw 1.0;
+  if (i < 9) throw foo();
+  return 0;
+}
+
+void rethrow() {
+  throw;
+}
+
+int main() {
+  for (unsigned i = 0; i < 10; ++i) {
+    try {
+      return callee(i);
+    } catch (foo &F) {
+      try {
+	rethrow();
+      } catch (foo &F) {
+        std::printf("%d: 3\n", i);
+      }
+    } catch (int) {
+      std::printf("%d: 1\n", i);
+    } catch (...) {
+      std::printf("%d: 2\n", i);
+    }
+  }
+}
+