diff --git a/gcc/internal-fn.cc b/gcc/internal-fn.cc
index 71ac483f88ae6686b808857fbd7a43a529f3c3e0..3f1fbc6c91a3bbfc63d2f1f62fb037dd50b9fcd8 100644
--- a/gcc/internal-fn.cc
+++ b/gcc/internal-fn.cc
@@ -4392,7 +4392,8 @@ vectorized_internal_fn_supported_p (internal_fn ifn, tree type)
     return direct_internal_fn_supported_p (ifn, type, OPTIMIZE_FOR_SPEED);
 
   scalar_mode smode;
-  if (!is_a <scalar_mode> (TYPE_MODE (type), &smode))
+  if (VECTOR_TYPE_P (type)
+      || !is_a <scalar_mode> (TYPE_MODE (type), &smode))
     return false;
 
   machine_mode vmode = targetm.vectorize.preferred_simd_mode (smode);
diff --git a/gcc/testsuite/gcc.target/i386/pr104496.c b/gcc/testsuite/gcc.target/i386/pr104496.c
new file mode 100644
index 0000000000000000000000000000000000000000..62d3bc60281a107448dac0fcb4046bd121cddac0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr104496.c
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-O -mgeneral-regs-only -msse" } */
+
+typedef int __attribute__((__vector_size__ (8))) V;
+V a, b;
+int c;
+
+void
+foo (void)
+{
+  b = 0 != a | b << c;
+}