(handle_vector_size_attribute): Use it to avoid generating a
new type node each time we are called.
+ * combine.c (subst): Avoid trying to make a vector mode subreg of
+ an integer constant.
+ (gen_lowpart_for_combine): Likewise.
+
2002-04-18 Roger Sayle <roger@eyesopen.com>
Jakub Jelinek <jakub@redhat.com>
if (GET_CODE (new) == CONST_INT && GET_CODE (x) == SUBREG)
{
+ if (VECTOR_MODE_P (GET_MODE (x)))
+ return gen_rtx_CLOBBER (VOIDmode, const0_rtx);
+
x = simplify_subreg (GET_MODE (x), new,
GET_MODE (SUBREG_REG (x)),
SUBREG_BYTE (x));
|| GET_MODE_SIZE (GET_MODE (x)) == GET_MODE_SIZE (mode)))
return gen_rtx_CLOBBER (GET_MODE (x), const0_rtx);
+ /* simplify_gen_subreg does not know how to handle the case where we try
+ to convert an integer constant to a vector.
+ ??? We could try to teach it to generate CONST_VECTORs. */
+ if (GET_MODE (x) == VOIDmode && VECTOR_MODE_P (mode))
+ return gen_rtx_CLOBBER (GET_MODE (x), const0_rtx);
+
/* X might be a paradoxical (subreg (mem)). In that case, gen_lowpart
won't know what to do. So we will strip off the SUBREG here and
process normally. */