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Accept a unary operator in find_reloads 

From-SVN: r13016
This commit is contained in:
Ian Lance Taylor 1996-10-23 22:01:23 +00:00
parent 1e1eb6c543
commit ff428c90a4
1 changed files with 9 additions and 3 deletions
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12
gcc/reload.c
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@ -2533,9 +2533,10 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
ind_levels,
set != 0
&& &SET_DEST (set) == recog_operand_loc[i]);
else if (code == PLUS)
/* We can get a PLUS as an "operand" as a result of
register elimination. See eliminate_regs and gen_reload. */
else if (code == PLUS || GET_RTX_CLASS (code) == '1')
/* We can get a PLUS as an "operand" as a result of register
elimination. See eliminate_regs and gen_reload. We handle
a unary operator by reloading the operand. */
substed_operand[i] = recog_operand[i] = *recog_operand_loc[i]
= find_reloads_toplev (recog_operand[i], i, address_type[i],
ind_levels, 0);
@ -2674,6 +2675,11 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
int constmemok = 0;
int earlyclobber = 0;
/* If the predicate accepts a unary operator, it means that
we need to reload the operand. */
if (GET_RTX_CLASS (GET_CODE (operand)) == '1')
operand = XEXP (operand, 0);
/* If the operand is a SUBREG, extract
the REG or MEM (or maybe even a constant) within.
(Constants can occur as a result of reg_equiv_constant.) */