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pdp11-protos.md (arith_operand, [...]): Delete 

* config/pdp11/pdp11-protos.md (arith_operand,
const_immediate_operand, expand_shift_operand,
immediate15_operand): Delete
* config/pdp11/pdp11.c: Ditto.
* config/pdp11/pdp11.h (REG_CLASS_FROM_LETTER,
CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P,
EXTRA_CONSTRAINT): Delete.
* config/pdp11/pdp11.md (various): Use standard constraints
instead of removed ones.
* config/pdp11/constraints.md: New file.
* config/pdp11/predicates.md: New file.

From-SVN: r165784
This commit is contained in:
Paul Koning 2010-10-21 15:39:30 -04:00 committed by Paul Koning
parent 4fcf718a61
commit 19ce9cf1b8
7 changed files with 139 additions and 97 deletions
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14
gcc/ChangeLog
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@ -1,3 +1,17 @@
2010-10-21 Paul Koning <ni1d@arrl.net>
* config/pdp11/pdp11-protos.md (arith_operand,
const_immediate_operand, expand_shift_operand,
immediate15_operand): Delete
* config/pdp11/pdp11.c: Ditto.
* config/pdp11/pdp11.h (REG_CLASS_FROM_LETTER,
CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P,
EXTRA_CONSTRAINT): Delete.
* config/pdp11/pdp11.md (various): Use standard constraints
instead of removed ones.
* config/pdp11/constraints.md: New file.
* config/pdp11/predicates.md: New file.
2010-10-21 Bingfeng Mei <bmei@broadcom.com>
PR c/45834

81
gcc/config/pdp11/constraints.md Normal file
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@ -0,0 +1,81 @@
;;- Constraint definitions for the pdp11 for GNU C compiler
;; Copyright (C) 2010 Free Software Foundation, Inc.
;; Contributed by Michael K. Gschwind (mike@vlsivie.tuwien.ac.at).
;; This file is part of GCC.
;; GCC is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; GCC is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
(define_register_constraint "f" "FPU_REGS"
"Any FPU register")
(define_register_constraint "a" "LOAD_FPU_REGS"
"FPU register that can be directly loaded from memory")
(define_register_constraint "d" "MUL_REGS"
"General register that can be used for 16-bit multiply (odd numbered)")
(define_constraint "I"
"Integer constant that fits in 16 bits unsigned"
(and (match_code "const_int")
(match_test "(ival & 0xffff0000) == 0")))
(define_constraint "J"
"Integer constant whose low 16 bits are zero"
(and (match_code "const_int")
(match_test "(ival & 0xffff) == 0")))
(define_constraint "K"
"Integer constant whose lower and upper 16 bit half are both non-zero"
(and (match_code "const_int")
(match_test "(ival & 0xffff) != 0 && (ival & 0xffff0000) != 0")))
(define_constraint "L"
"Integer constant 1"
(and (match_code "const_int")
(match_test "ival == 1")))
(define_constraint "M"
"Integer constant -1"
(and (match_code "const_int")
(match_test "ival == -1")))
(define_constraint "N"
"Integer constant 0"
(and (match_code "const_int")
(match_test "ival == 0")))
(define_constraint "O"
"Integer constant for which several individual shifts are better than one big one"
(and (match_code "const_int")
(match_test "abs (ival) > 1 && abs (ival) <= 4")))
(define_constraint "G"
"Defines a real zero constant."
(and (match_code "const_double")
(match_test "op == CONST0_RTX (GET_MODE (op))")))
(define_constraint "Q"
"Memory reference that requires an additional word after the opcode"
(and (match_code "mem")
(match_test "memory_address_p (GET_MODE (op), XEXP (op, 0))
&& !simple_memory_operand (op, GET_MODE (op))")))
(define_constraint "R"
"Memory reference that is encoded within the opcode"
(and (match_code "mem")
(match_test "memory_address_p (GET_MODE (op), XEXP (op, 0))
&& simple_memory_operand (op, GET_MODE (op))")))

4
gcc/config/pdp11/pdp11-protos.h
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@ -21,10 +21,6 @@ along with GCC; see the file COPYING3. If not see
/* declarations */
#ifdef RTX_CODE
extern int arith_operand (rtx, enum machine_mode);
extern int const_immediate_operand (rtx, enum machine_mode);
extern int expand_shift_operand (rtx, enum machine_mode);
extern int immediate15_operand (rtx, enum machine_mode);
extern int simple_memory_operand (rtx, enum machine_mode);
extern int legitimate_const_double_p (rtx);

28
gcc/config/pdp11/pdp11.c
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@ -255,34 +255,6 @@ pdp11_option_init_struct (struct gcc_options *opts)
opts->x_flag_signaling_nans = 0;
}
/* Nonzero if OP is a valid second operand for an arithmetic insn. */
int
arith_operand (rtx op, enum machine_mode mode)
{
return (register_operand (op, mode) || GET_CODE (op) == CONST_INT);
}
int
const_immediate_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
return (GET_CODE (op) == CONST_INT);
}
int
immediate15_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
return (GET_CODE (op) == CONST_INT && ((INTVAL (op) & 0x8000) == 0x0000));
}
int
expand_shift_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
return (GET_CODE (op) == CONST_INT
&& abs (INTVAL(op)) > 1
&& abs (INTVAL(op)) <= 4);
}
/*
stream is a stdio stream to output the code to.
size is an int: how many units of temporary storage to allocate.

56
gcc/config/pdp11/pdp11.h
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@ -320,62 +320,6 @@ enum reg_class { NO_REGS, MUL_REGS, GENERAL_REGS, LOAD_FPU_REGS, NO_LOAD_FPU_REG
#define INDEX_REG_CLASS GENERAL_REGS
#define BASE_REG_CLASS GENERAL_REGS
/* Get reg_class from a letter such as appears in the machine description. */
#define REG_CLASS_FROM_LETTER(C) \
((C) == 'f' ? FPU_REGS : \
((C) == 'd' ? MUL_REGS : \
((C) == 'a' ? LOAD_FPU_REGS : NO_REGS)))
/* The letters I, J, K, L and M in a register constraint string
can be used to stand for particular ranges of immediate operands.
This macro defines what the ranges are.
C is the letter, and VALUE is a constant value.
Return 1 if VALUE is in the range specified by C.
I bits 31-16 0000
J bits 15-00 0000
K completely random 32 bit
L,M,N -1,1,0 respectively
O where doing shifts in sequence is faster than
one big shift
*/
#define CONST_OK_FOR_LETTER_P(VALUE, C) \
((C) == 'I' ? ((VALUE) & 0xffff0000) == 0 \
: (C) == 'J' ? ((VALUE) & 0x0000ffff) == 0 \
: (C) == 'K' ? (((VALUE) & 0xffff0000) != 0 \
&& ((VALUE) & 0x0000ffff) != 0) \
: (C) == 'L' ? ((VALUE) == 1) \
: (C) == 'M' ? ((VALUE) == -1) \
: (C) == 'N' ? ((VALUE) == 0) \
: (C) == 'O' ? (abs(VALUE) >1 && abs(VALUE) <= 4) \
: 0)
/* Similar, but for floating constants, and defining letters G and H.
Here VALUE is the CONST_DOUBLE rtx itself. */
#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \
((C) == 'G' && XINT (VALUE, 0) == 0 && XINT (VALUE, 1) == 0)
/* Letters in the range `Q' through `U' may be defined in a
machine-dependent fashion to stand for arbitrary operand types.
The machine description macro `EXTRA_CONSTRAINT' is passed the
operand as its first argument and the constraint letter as its
second operand.
`Q' is for memory references that require an extra word after the opcode.
`R' is for memory references which are encoded within the opcode. */
#define EXTRA_CONSTRAINT(OP,CODE) \
((GET_CODE (OP) != MEM) ? 0 \
: !memory_address_p (GET_MODE (OP), XEXP (OP, 0)) ? 0 \
: ((CODE) == 'Q') ? !simple_memory_operand (OP, GET_MODE (OP)) \
: ((CODE) == 'R') ? simple_memory_operand (OP, GET_MODE (OP)) \
: 0)
/* Given an rtx X being reloaded into a reg required to be
in class CLASS, return the class of reg to actually use.
In general this is just CLASS; but on some machines

16
gcc/config/pdp11/pdp11.md
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@ -19,10 +19,8 @@
;; along with GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
;; Match CONST_DOUBLE zero for tstd/tstf.
(define_predicate "register_or_const0_operand"
(ior (match_operand 0 "register_operand")
(match_test "op == CONST0_RTX (GET_MODE (op))")))
(include "predicates.md")
(include "constraints.md")
;; HI is 16 bit
@ -331,7 +329,7 @@
(define_expand "movmemhi"
[(parallel [(set (match_operand:BLK 0 "general_operand" "=g,g")
(match_operand:BLK 1 "general_operand" "g,g"))
(use (match_operand:HI 2 "arith_operand" "n,&mr"))
(use (match_operand:HI 2 "general_operand" "n,&mr"))
(use (match_operand:HI 3 "immediate_operand" "i,i"))
(clobber (match_scratch:HI 4 "=&r,X"))
(clobber (match_dup 5))
@ -925,7 +923,7 @@
(define_insn "xorsi3"
[(set (match_operand:SI 0 "register_operand" "=r")
(xor:SI (match_operand:SI 1 "register_operand" "%0")
(match_operand:SI 2 "arith_operand" "r")))]
(match_operand:SI 2 "register_operand" "r")))]
"TARGET_40_PLUS"
"*
{ /* Here we trust that operands don't overlap */
@ -1078,7 +1076,7 @@
(define_insn ""
[(set (match_operand:QI 0 "general_operand" "=r,o")
(ashift:QI (match_operand:QI 1 "general_operand" "0,0")
(match_operand:HI 2 "const_immediate_operand" "n,n")))]
(match_operand:HI 2 "const_int_operand" "n,n")))]
""
"*
{ /* allowing predec or post_inc is possible, but hairy! */
@ -1109,7 +1107,7 @@
(define_insn ""
[(set (match_operand:QI 0 "general_operand" "=r,o")
(ashiftrt:QI (match_operand:QI 1 "general_operand" "0,0")
(match_operand:HI 2 "const_immediate_operand" "n,n")))]
(match_operand:HI 2 "const_int_operand" "n,n")))]
""
"*
{ /* allowing predec or post_inc is possible, but hairy! */
@ -1171,7 +1169,7 @@
;;(define_insn "lshrsi3"
;; [(set (match_operand:HI 0 "register_operand" "=r")
;; (lshiftrt:HI (match_operand:HI 1 "register_operand" "0")
;; (match_operand:HI 2 "arith_operand" "rI")))]
;; (match_operand:HI 2 "general_operand" "rI")))]
;; ""
;; "srl %0,%2")

37
gcc/config/pdp11/predicates.md Normal file
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@ -0,0 +1,37 @@
;;- Predicate definitions for the pdp11 for GNU C compiler
;; Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2004, 2005
;; 2007, 2008, 2010 Free Software Foundation, Inc.
;; Contributed by Michael K. Gschwind (mike@vlsivie.tuwien.ac.at).
;; This file is part of GCC.
;; GCC is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; GCC is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
;; Match CONST_DOUBLE zero for tstd/tstf.
(define_predicate "register_or_const0_operand"
(ior (match_operand 0 "register_operand")
(match_test "op == CONST0_RTX (GET_MODE (op))")))
;; Accept integer arguments in the range -4..-2 and 2..4, which are the
;; shift counts for which we unroll a shift. This matches the rule for
;; the "O" constraint.
(define_predicate "expand_shift_operand"
(match_code "const_int")
{
int sh;
sh = INTVAL (op);
return (abs (sh) > 1 && abs (sh) <= 4);
})