Hi Xingxing,
On 19/12/14 11:01, Xingxing Pan wrote:
+/* Return true if vector element size is byte. */
Minor nit: two spaces after full stop and before */ Same in other places
in the patch.
+bool
+marvell_whitney_vector_element_size_is_byte (rtx insn)
+{
+ if (GET_CODE (PATTERN (insn)) == SET)
+ {
+ if ((GET_MODE (SET_DEST (PATTERN (insn))) == V8QImode) ||
+ (GET_MODE (SET_DEST (PATTERN (insn))) == V16QImode))
+ return true;
+ }
+
+ return false;
+}
I see this is called from inside marvell-whitney.md. It seems to me that
this function takes RTX insns. Can the type of this be strengthened to
rtx_insn * ?
Also, this should be refactored and written a bit more generally by
checking for VECTOR_MODE_P and then GET_MODE_INNER for QImode, saving
you the trouble of enumerating the different vector QI modes.
+
+/* Return true if INSN has shift operation but is not a shift insn. */
+bool
+marvell_whitney_non_shift_with_shift_operand (rtx insn)
Similar comment. Can this be strengthened to rtx_insn * ?
Thanks,
Kyrill
+{
+ rtx pat = PATTERN (insn);
+
+ if (GET_CODE (pat) != SET)
+ return false;
+
+ /* Is not a shift insn. */
+ rtx rvalue = SET_SRC (pat);
+ RTX_CODE code = GET_CODE (rvalue);
+ if (code == ASHIFT || code == ASHIFTRT
+ || code == LSHIFTRT || code == ROTATERT)
+ return false;
+
+ subrtx_iterator::array_type array;
+ FOR_EACH_SUBRTX (iter, array, rvalue, ALL)
+ {
+ /* Has shift operation. */
+ RTX_CODE code = GET_CODE (*iter);
+ if (code == ASHIFT || code == ASHIFTRT
+ || code == LSHIFTRT || code == ROTATERT)
+ return true;
+ }
+
+ return false;
+}
