1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/pr33597.c b/gcc/testsuite/gcc.dg/vect/pr33597.c
new file mode 100644
index 000000000..7fdcde07f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/pr33597.c
@@ -0,0 +1,24 @@
+/* { dg-do compile } */
+
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+
+void
+rgb15to24_C (const uint8_t * src, uint8_t * dst, long src_size)
+{
+  const uint16_t *end;
+  const uint16_t *s = (uint16_t *)src;
+  uint8_t *d = (uint8_t *)dst;
+
+  end = s + src_size/2;
+  while (s < end)
+    {
+      uint16_t bgr = *s++;
+
+      *d++ = (bgr&0x1F)<<3;
+      *d++ = (bgr&0x3E0)>>2;
+      *d++ = (bgr&0x7C00)>>7;
+    }
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */