* recog.h, genoutput.c, optabs.c: Revert last patch.

From-SVN: r172321
This commit is contained in:
Richard Sandiford 2011-04-12 14:56:57 +00:00 committed by Richard Sandiford
parent ae59e00d17
commit 28569ac3d4
4 changed files with 20 additions and 58 deletions

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@ -1,3 +1,7 @@
2011-04-12 Richard Sandiford <richard.sandiford@linaro.org>
* recog.h, genoutput.c, optabs.c: Revert last patch.
2011-04-12 Ramana Radhakrishnan <ramana.radhakrishnan@linaro.org>
PR target/48090

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@ -66,8 +66,6 @@ along with GCC; see the file COPYING3. If not see
MATCH_OPERAND; it is zero for operands that should not be changed during
register elimination such as MATCH_OPERATORs.
g. `allows_mem', is true for operands that accept MEM rtxes.
The code number of an insn is simply its position in the machine
description; code numbers are assigned sequentially to entries in
the description, starting with code number 0.
@ -258,8 +256,6 @@ output_operand_data (void)
for (d = odata; d; d = d->next)
{
struct pred_data *pred;
printf (" {\n");
printf (" %s,\n",
@ -273,12 +269,7 @@ output_operand_data (void)
printf (" %d,\n", d->constraint == NULL ? 1 : 0);
printf (" %d,\n", d->eliminable);
pred = NULL;
if (d->predicate)
pred = lookup_predicate (d->predicate);
printf (" %d\n", pred && pred->codes[MEM]);
printf (" %d\n", d->eliminable);
printf(" },\n");
}

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@ -7001,36 +7001,6 @@ insn_operand_matches (enum insn_code icode, unsigned int opno, rtx operand)
(operand, insn_data[(int) icode].operand[opno].mode)));
}
/* Like maybe_legitimize_operand, but do not change the code of the
current rtx value. */
static bool
maybe_legitimize_operand_same_code (enum insn_code icode, unsigned int opno,
struct expand_operand *op)
{
/* See if the operand matches in its current form. */
if (insn_operand_matches (icode, opno, op->value))
return true;
/* If the operand is a memory, try forcing the address into a register. */
if (MEM_P (op->value) && insn_data[(int) icode].operand[opno].allows_mem)
{
rtx addr, mem, last;
last = get_last_insn ();
addr = force_reg (Pmode, XEXP (op->value, 0));
mem = replace_equiv_address (op->value, addr);
if (insn_operand_matches (icode, opno, mem))
{
op->value = mem;
return true;
}
delete_insns_since (last);
}
return false;
}
/* Try to make OP match operand OPNO of instruction ICODE. Return true
on success, storing the new operand value back in OP. */
@ -7041,25 +7011,22 @@ maybe_legitimize_operand (enum insn_code icode, unsigned int opno,
enum machine_mode mode, imode;
bool old_volatile_ok, result;
old_volatile_ok = volatile_ok;
mode = op->mode;
result = false;
switch (op->type)
{
case EXPAND_FIXED:
old_volatile_ok = volatile_ok;
volatile_ok = true;
result = maybe_legitimize_operand_same_code (icode, opno, op);
volatile_ok = old_volatile_ok;
return result;
break;
case EXPAND_OUTPUT:
gcc_assert (mode != VOIDmode);
if (op->value
&& op->value != const0_rtx
&& GET_MODE (op->value) == mode
&& maybe_legitimize_operand_same_code (icode, opno, op))
return true;
op->value = gen_reg_rtx (mode);
if (!op->value
|| op->value == const0_rtx
|| GET_MODE (op->value) != mode
|| !insn_operand_matches (icode, opno, op->value))
op->value = gen_reg_rtx (mode);
break;
case EXPAND_INPUT:
@ -7067,10 +7034,9 @@ maybe_legitimize_operand (enum insn_code icode, unsigned int opno,
gcc_assert (mode != VOIDmode);
gcc_assert (GET_MODE (op->value) == VOIDmode
|| GET_MODE (op->value) == mode);
if (maybe_legitimize_operand_same_code (icode, opno, op))
return true;
op->value = copy_to_mode_reg (mode, op->value);
result = insn_operand_matches (icode, opno, op->value);
if (!result)
op->value = copy_to_mode_reg (mode, op->value);
break;
case EXPAND_CONVERT_TO:
@ -7104,7 +7070,10 @@ maybe_legitimize_operand (enum insn_code icode, unsigned int opno,
goto input;
break;
}
return insn_operand_matches (icode, opno, op->value);
if (!result)
result = insn_operand_matches (icode, opno, op->value);
volatile_ok = old_volatile_ok;
return result;
}
/* Make OP describe an input operand that should have the same value

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@ -272,8 +272,6 @@ struct insn_operand_data
const char is_operator;
const char eliminable;
const char allows_mem;
};
/* Legal values for insn_data.output_format. Indicate what type of data