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(find_reloads_address_1): Handle SUBREGs same as REGs. 

From-SVN: r5240
This commit is contained in:
Jim Wilson 1993-09-01 15:07:57 -07:00
parent 5555d6d103
commit 87935f601e
1 changed files with 34 additions and 20 deletions
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54
gcc/reload.c
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@ -4379,30 +4379,44 @@ find_reloads_address_1 (x, context, loc, opnum, type, ind_levels)
if (code == PLUS)
{
register rtx op0 = XEXP (x, 0);
register rtx op1 = XEXP (x, 1);
register RTX_CODE code0 = GET_CODE (op0);
register RTX_CODE code1 = GET_CODE (op1);
register rtx orig_op0 = XEXP (x, 0);
register rtx orig_op1 = XEXP (x, 1);
register RTX_CODE code0 = GET_CODE (orig_op0);
register RTX_CODE code1 = GET_CODE (orig_op1);
register rtx op0 = orig_op0;
register rtx op1 = orig_op1;
if (GET_CODE (op0) == SUBREG)
{
op0 = SUBREG_REG (op0);
code0 = GET_CODE (op0);
}
if (GET_CODE (op1) == SUBREG)
{
op1 = SUBREG_REG (op1);
code1 = GET_CODE (op1);
}
if (code0 == MULT || code0 == SIGN_EXTEND || code1 == MEM)
{
find_reloads_address_1 (op0, 1, &XEXP (x, 0), opnum, type,
find_reloads_address_1 (orig_op0, 1, &XEXP (x, 0), opnum, type,
ind_levels);
find_reloads_address_1 (op1, 0, &XEXP (x, 1), opnum, type,
find_reloads_address_1 (orig_op1, 0, &XEXP (x, 1), opnum, type,
ind_levels);
}
else if (code1 == MULT || code1 == SIGN_EXTEND || code0 == MEM)
{
find_reloads_address_1 (op0, 0, &XEXP (x, 0), opnum, type,
find_reloads_address_1 (orig_op0, 0, &XEXP (x, 0), opnum, type,
ind_levels);
find_reloads_address_1 (op1, 1, &XEXP (x, 1), opnum, type,
find_reloads_address_1 (orig_op1, 1, &XEXP (x, 1), opnum, type,
ind_levels);
}
else if (code0 == CONST_INT || code0 == CONST
|| code0 == SYMBOL_REF || code0 == LABEL_REF)
find_reloads_address_1 (op1, 0, &XEXP (x, 1), opnum, type, ind_levels);
find_reloads_address_1 (orig_op1, 0, &XEXP (x, 1), opnum, type, ind_levels);
else if (code1 == CONST_INT || code1 == CONST
|| code1 == SYMBOL_REF || code1 == LABEL_REF)
find_reloads_address_1 (op0, 0, &XEXP (x, 0), opnum, type, ind_levels);
find_reloads_address_1 (orig_op0, 0, &XEXP (x, 0), opnum, type, ind_levels);
else if (code0 == REG && code1 == REG)
{
if (REG_OK_FOR_INDEX_P (op0)
@ -4412,37 +4426,37 @@ find_reloads_address_1 (x, context, loc, opnum, type, ind_levels)
&& REG_OK_FOR_BASE_P (op0))
return 0;
else if (REG_OK_FOR_BASE_P (op1))
find_reloads_address_1 (op0, 1, &XEXP (x, 0), opnum, type,
find_reloads_address_1 (orig_op0, 1, &XEXP (x, 0), opnum, type,
ind_levels);
else if (REG_OK_FOR_BASE_P (op0))
find_reloads_address_1 (op1, 1, &XEXP (x, 1), opnum, type,
find_reloads_address_1 (orig_op1, 1, &XEXP (x, 1), opnum, type,
ind_levels);
else if (REG_OK_FOR_INDEX_P (op1))
find_reloads_address_1 (op0, 0, &XEXP (x, 0), opnum, type,
find_reloads_address_1 (orig_op0, 0, &XEXP (x, 0), opnum, type,
ind_levels);
else if (REG_OK_FOR_INDEX_P (op0))
find_reloads_address_1 (op1, 0, &XEXP (x, 1), opnum, type,
find_reloads_address_1 (orig_op1, 0, &XEXP (x, 1), opnum, type,
ind_levels);
else
{
find_reloads_address_1 (op0, 1, &XEXP (x, 0), opnum, type,
find_reloads_address_1 (orig_op0, 1, &XEXP (x, 0), opnum, type,
ind_levels);
find_reloads_address_1 (op1, 0, &XEXP (x, 1), opnum, type,
find_reloads_address_1 (orig_op1, 0, &XEXP (x, 1), opnum, type,
ind_levels);
}
}
else if (code0 == REG)
{
find_reloads_address_1 (op0, 1, &XEXP (x, 0), opnum, type,
find_reloads_address_1 (orig_op0, 1, &XEXP (x, 0), opnum, type,
ind_levels);
find_reloads_address_1 (op1, 0, &XEXP (x, 1), opnum, type,
find_reloads_address_1 (orig_op1, 0, &XEXP (x, 1), opnum, type,
ind_levels);
}
else if (code1 == REG)
{
find_reloads_address_1 (op1, 1, &XEXP (x, 1), opnum, type,
find_reloads_address_1 (orig_op1, 1, &XEXP (x, 1), opnum, type,
ind_levels);
find_reloads_address_1 (op0, 0, &XEXP (x, 0), opnum, type,
find_reloads_address_1 (orig_op0, 0, &XEXP (x, 0), opnum, type,
ind_levels);
}
}