1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr50038.c b/gcc/testsuite/gcc.dg/pr50038.c
new file mode 100644
index 0000000..4d1c8f7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr50038.c
@@ -0,0 +1,20 @@
+/* PR target/50038 */
+/* { dg-do compile { target x86_64-*-* } } */
+/* { dg-options "-O2" } */
+
+void pr50038(int len, unsigned char *in, unsigned char *out)
+{
+  int i;
+  unsigned char xr, xg;
+  unsigned char xy=0;
+  for (i = 0; i < len; i++)
+    {
+      xr = *in++;
+      xg = *in++;
+      xy = (unsigned char) ((19595*xr + 38470*xg) >> 16);
+
+      *out++ = xy;
+    }
+}
+
+/* { dg-final { scan-assembler-times "movzbl" 2 } } */