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riscv-gcc-1
Commit 8ca00751 by Richard Kenner
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(emit_block_move): Only use movstr if size is small enough constant or 

MODE is at least BITS_PER_WORD.

From-SVN: r8585
parent 8922eb5b
Showing with 4 additions and 1 deletions
gcc/expr.c
...@@ -1624,7 +1624,10 @@ emit_block_move (x, y, size, align) ...@@ -1624,7 +1624,10 @@ emit_block_move (x, y, size, align)
here because if SIZE is less than the mode mask, as it is here because if SIZE is less than the mode mask, as it is
returned by the macro, it will definitely be less than the returned by the macro, it will definitely be less than the
actual mode mask. */ actual mode mask. */
&& (unsigned HOST_WIDE_INT) INTVAL (size) <= GET_MODE_MASK (mode) && ((GET_CODE (size) == CONST_INT
&& ((unsigned HOST_WIDE_INT) INTVAL (size)
<= GET_MODE_MASK (mode)))
|| GET_MODE_BITSIZE (mode) >= BITS_PER_WORD)
&& (insn_operand_predicate[(int) code][0] == 0 && (insn_operand_predicate[(int) code][0] == 0
|| (*insn_operand_predicate[(int) code][0]) (x, BLKmode)) || (*insn_operand_predicate[(int) code][0]) (x, BLKmode))
&& (insn_operand_predicate[(int) code][1] == 0 && (insn_operand_predicate[(int) code][1] == 0
......
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