@@ -104,7 +104,8 @@ gimple_expand_vec_set_extract_expr (struct function *fun,
machine_mode outermode = TYPE_MODE (TREE_TYPE (view_op0));
machine_mode extract_mode = TYPE_MODE (TREE_TYPE (ref));
- if (auto_var_in_fn_p (view_op0, fun->decl)
+ if ((auto_var_in_fn_p (view_op0, fun->decl)
+ || DECL_HARD_REGISTER (view_op0))
&& !TREE_ADDRESSABLE (view_op0)
&& ((!is_extract && can_vec_set_var_idx_p (outermode))
|| (is_extract
new file mode 100644
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mavx512f -w" } */
+
+typedef float __attribute__ ((vector_size (64))) vec;
+register vec a asm("zmm2"), b asm("zmm0"), c asm("zmm1");
+
+void
+test (void)
+{
+ for (int i = 0; i < 8; i++)
+ c[i] = a[i] < b[i] ? 0.1 : 0.2;
+}