testcases for undefined and unreachable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17058 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Feature/undefined.ll b/test/Feature/undefined.ll
new file mode 100644 (file)
index 0000000..a71b906
--- /dev/null
+++ b/test/Feature/undefined.ll
@@ -0,0 +1,15 @@
+
+%X = global int undef
+
+implementation
+
+declare int "atoi"(sbyte *)
+
+int %test() {
+       ret int undef
+}
+
+int %test2() {
+       %X = add int undef, 1
+       ret int %X
+}

diff --git a/test/Feature/unreachable.ll b/test/Feature/unreachable.ll
new file mode 100644 (file)
index 0000000..84c4552
--- /dev/null
+++ b/test/Feature/unreachable.ll
@@ -0,0 +1,13 @@
+
+implementation
+
+declare void %bar()
+
+int %foo() {  ;; Calling this function has undefined behavior
+       unreachable
+}
+
+double %xyz() {
+       call void %bar()
+       unreachable          ;; Bar must not return.
+}