new testcase

llvm-svn: 21710
diff --git a/llvm/test/Regression/Transforms/InstCombine/set.ll b/llvm/test/Regression/Transforms/InstCombine/set.ll
index 6abf646..56b995e 100644
--- a/llvm/test/Regression/Transforms/InstCombine/set.ll
+++ b/llvm/test/Regression/Transforms/InstCombine/set.ll
@@ -113,3 +113,11 @@
         %D = cast bool %C to uint
         ret uint %D
 }
+
+int %test21(int %a) {
+        %tmp.6 = and int %a, 4
+        %not.tmp.7 = setne int %tmp.6, 0
+        %retval = cast bool %not.tmp.7 to int
+        ret int %retval
+}
+