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expr.c (emit_block_move_via_movmem): Only use 6 operand variant if there are exactly 6 operands.

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* expr.c (emit_block_move_via_movmem): Only use 6 operand variant
        if there are exactly 6 operands.
        (set_storage_via_setmem): Similarly.

From-SVN: r171532
This commit is contained in:
Richard Henderson 2011-03-25 16:17:26 -07:00 committed by Richard Henderson
parent e3e08a1db5
commit c2654dede7
2 changed files with 18 additions and 4 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-03-25 Richard Henderson <rth@redhat.com>
* expr.c (emit_block_move_via_movmem): Only use 6 operand variant
if there are exactly 6 operands.
(set_storage_via_setmem): Similarly.
2011-03-25 Kai Tietz <ktietz@redhat.com>
* collect2.c (write_c_file_stat): Handle backslash

16
gcc/expr.c
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@ -1294,16 +1294,20 @@ emit_block_move_via_movmem (rtx x, rtx y, rtx size, unsigned int align,
that it doesn't fail the expansion because it thinks
emitting the libcall would be more efficient. */
nops = insn_data[(int) code].n_operands;
/* ??? n_operands includes match_scratches; find some other
way to select the 6 operand variant, or force all targets
to have exactly 6 operands. */
gcc_assert (nops >= 4 && nops <= 6);
create_fixed_operand (&ops[0], x);
create_fixed_operand (&ops[1], y);
/* The check above guarantees that this size conversion is valid. */
create_convert_operand_to (&ops[2], size, mode, true);
create_integer_operand (&ops[3], align / BITS_PER_UNIT);
if (nops != 4)
if (nops == 6)
{
create_integer_operand (&ops[4], expected_align / BITS_PER_UNIT);
create_integer_operand (&ops[5], expected_size);
nops = 6;
}
if (maybe_expand_insn (code, nops, ops))
{
@ -2716,16 +2720,20 @@ set_storage_via_setmem (rtx object, rtx size, rtx val, unsigned int align,
unsigned int nops;
nops = insn_data[(int) code].n_operands;
/* ??? n_operands includes match_scratches; find some other
way to select the 6 operand variant, or force all targets
to have exactly 6 operands. */
gcc_assert (nops >= 4 && nops <= 6);
create_fixed_operand (&ops[0], object);
/* The check above guarantees that this size conversion is valid. */
create_convert_operand_to (&ops[1], size, mode, true);
create_convert_operand_from (&ops[2], val, byte_mode, true);
create_integer_operand (&ops[3], align / BITS_PER_UNIT);
if (nops != 4)
if (nops == 6)
{
create_integer_operand (&ops[4], expected_align / BITS_PER_UNIT);
create_integer_operand (&ops[5], expected_size);
nops = 6;
}
if (maybe_expand_insn (code, nops, ops))
return true;