1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr33644.c b/gcc/testsuite/gcc.dg/pr33644.c
new file mode 100644
index 000000000..f3f543cbe
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr33644.c
@@ -0,0 +1,19 @@
+/* PR rtl-optimization/33644 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftrapv" } */
+
+extern char *bar (const char *);
+
+int *m, *b;
+
+void foo (void)
+{
+  int *mv;
+  int p;
+  char a[17];
+
+  p = bar (a) - a;
+  for (mv = m; mv < b; mv++)
+    if (p && ((*mv  & 7) != p))
+      *mv=0;
+}