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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [config/] [or32/] [predicates.md] - Rev 242
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;; Predicate definitions for OR32
(define_predicate "cc_reg_operand"
(match_code "subreg,reg")
{
register_operand (op, mode);
if (GET_CODE (op) == REG && REGNO (op) == 32)
return 1;
return 0;
})
(define_predicate "sibcall_insn_operand"
(match_code "subreg,reg,symbol_ref")
{
/* Disallow indirect through a virtual register. This leads to
compiler aborts when trying to eliminate them. */
if (GET_CODE (op) == REG
&& (op == arg_pointer_rtx
|| op == frame_pointer_rtx
|| (REGNO (op) >= FIRST_PSEUDO_REGISTER
&& REGNO (op) <= LAST_VIRTUAL_REGISTER)))
{
fprintf (stderr, "0\n");
return 0;
}
/* Explicitly allow SYMBOL_REF even if pic. */
if (GET_CODE (op) == SYMBOL_REF)
return 1;
/* Otherwise we can only allow register operands. */
return register_operand (op, Pmode);
})
(define_predicate "input_operand"
(match_code "subreg,reg,const_int,mem,const")
{
/* If both modes are non-void they must be the same. */
if (mode != VOIDmode && GET_MODE (op) != VOIDmode && mode != GET_MODE (op))
return 0;
/* Allow any one instruction integer constant, and all CONST_INT
variants when we are working in DImode and !arch64. */
if (GET_MODE_CLASS (mode) == MODE_INT
&& ((GET_CODE (op) == CONST_INT)
&& (CONST_OK_FOR_LETTER_P (INTVAL (op), 'K')
|| CONST_OK_FOR_LETTER_P (INTVAL (op), 'M')
|| CONST_OK_FOR_LETTER_P (INTVAL (op), 'I'))))
return 1;
if (register_operand (op, mode))
return 1;
/* If this is a SUBREG, look inside so that we handle
paradoxical ones. */
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
/* Check for valid MEM forms. */
if (GET_CODE (op) == MEM)
return memory_address_p (mode, XEXP (op, 0));
return 0;
})
(define_predicate "sym_ref_mem_operand"
(match_code "mem")
{
if (GET_CODE (op) == MEM)
{
rtx t1 = XEXP (op, 0);
if (GET_CODE (t1) == SYMBOL_REF)
return 1;
}
return 0;
})
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