1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr33961.c b/gcc/testsuite/gcc.dg/pr33961.c
new file mode 100644
index 000000000..43403ed30
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr33961.c
@@ -0,0 +1,23 @@
+/* PR tree-optimization/33961 */
+/* { dg-do run } */
+/* { dg-options "-O2 -ftree-cselim" } */
+
+void decode(char *d, int len);
+
+void decode(char *d, int len) {
+        int i = len - 1;
+        while(i >= 0) {
+                d[i];
+                if(d[i] == 0)
+                        d[i]=' ';
+		if(d[i] == 1)
+			d[i]='x';
+                i--;
+        }
+}
+
+int main(int argc, char **argv)
+{
+        decode("this bug is really weird", 24);
+	return 0;
+}