+2011-02-14 Nathan Froyd <froydnj@codesourcery.com>
+
+ * config/stormy16/constraints.md: New file.
+ * config/stormy16/predicates.md (nonimmediate_nonstack_operand):
+ Use satisfies_constraint_Q and satisfies_constraint_R.
+ * config/stormy16/stomry16-protos.h (xstormy16_extra_constraint_p):
+ Delete.
+ (xstormy16_legitiamte_address_p): Declare.
+ * config/stormy16/stormy16.h (REG_CLASS_FROM_LETTER): Delete.
+ (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
+ (EXTRA_CONSTRAINT): Delete.
+ * config/stormy16/stormy16.c (xstormy16_legitiamte_address_p):
+ Un-staticize.
+ (xstormy16_extra_constraint_p): Delete.
+
2011-02-14 Eric Botcazou <ebotcazou@adacore.com>
PR tree-optimization/46494
--- /dev/null
+;; Constraint definitions for XSTORMY16.
+;; Copyright (C) 2011 Free Software Foundation, Inc.
+;;
+;; 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/>.
+
+;; Register constraints.
+(define_register_constraint "a" "R0_REGS"
+ "@internal")
+
+(define_register_constraint "b" "R1_REGS"
+ "@internal")
+
+(define_register_constraint "c" "R2_REGS"
+ "@internal")
+
+(define_register_constraint "d" "R8_REGS"
+ "@internal")
+
+(define_register_constraint "e" "EIGHT_REGS"
+ "@internal")
+
+(define_register_constraint "t" "TWO_REGS"
+ "@internal")
+
+(define_register_constraint "z" "ICALL_REGS"
+ "@internal")
+
+;; Integer constraints.
+(define_constraint "I"
+ "An integer between 0 and 3."
+ (and (match_code "const_int")
+ (match_test "IN_RANGE (ival, 0, 3)")))
+
+(define_constraint "J"
+ "A power of two."
+ (and (match_code "const_int")
+ (match_test "exact_log2 (ival) != -1")))
+
+(define_constraint "K"
+ "A power of two when inverted."
+ (and (match_code "const_int")
+ (match_test "exact_log2 (~ival) != -1")))
+
+(define_constraint "L"
+ "An 8-bit unsigned integer."
+ (and (match_code "const_int")
+ (match_test "IN_RANGE (ival, 0, 255)")))
+
+(define_constraint "M"
+ "An integer between -255 and 0."
+ (and (match_code "const_int")
+ (match_test "IN_RANGE (ival, -255, 0)")))
+
+(define_constraint "N"
+ "An integer between -3 and 0."
+ (and (match_code "const_int")
+ (match_test "IN_RANGE (ival, -3, 0)")))
+
+(define_constraint "O"
+ "An integer between 1 and 4."
+ (and (match_code "const_int")
+ (match_test "IN_RANGE (ival, 1, 4)")))
+
+(define_constraint "P"
+ "An integer between -4 and -1."
+ (and (match_code "const_int")
+ (match_test "IN_RANGE (ival, -4, -1)")))
+
+;; Extra constraints.
+(define_constraint "Q"
+ "A register push operation."
+ (and (match_code "mem")
+ (match_code "post_inc" "0")
+ (match_test "XEXP (XEXP (op, 0), 0) == stack_pointer_rtx")))
+
+(define_constraint "R"
+ "A register pop operation."
+ (and (match_code "mem")
+ (match_code "pre_dec" "0")
+ (match_test "XEXP (XEXP (op, 0), 0) == stack_pointer_rtx")))
+
+(define_constraint "S"
+ "An immediate memory address."
+ (and (match_code "mem")
+ (match_code "const_int" "0")
+ (match_test "xstormy16_legitimate_address_p (VOIDmode, XEXP (op, 0), false)")))
+
+(define_constraint "T"
+ "@internal"
+ ;; For Rx; not implemented yet.
+ (match_test "0"))
+
+(define_constraint "U"
+ "An integer not between 2 and 15."
+ (and (match_code "const_int")
+ (match_test "!IN_RANGE (ival, 2, 15)")))
+
+(define_constraint "W"
+ "@internal"
+ (match_operand 0 "xstormy16_below100_operand"))
+
+(define_constraint "Z"
+ "Zero."
+ (and (match_code "const_int")
+ (match_test "ival == 0")))
\ No newline at end of file
{
/* 'Q' is for pushes, 'R' for pops. */
return (nonimmediate_operand (op, mode)
- && ! xstormy16_extra_constraint_p (op, 'Q')
- && ! xstormy16_extra_constraint_p (op, 'R'));
+ && ! satisfies_constraint_Q (op)
+ && ! satisfies_constraint_R (op));
})
(define_predicate "xstormy16_carry_plus_operand"
extern char *xstormy16_output_cbranch_hi (rtx, const char *, int, rtx);
extern char *xstormy16_output_cbranch_si (rtx, const char *, int, rtx);
extern int xstormy16_mode_dependent_address_p (rtx);
-extern int xstormy16_extra_constraint_p (rtx, int);
extern void xstormy16_print_operand (FILE *, rtx, int);
extern void xstormy16_print_operand_address (FILE *, rtx);
rtx, rtx, rtx);
extern int xstormy16_below100_symbol (rtx, enum machine_mode);
extern int xstormy16_splittable_below100_operand (rtx, enum machine_mode);
+extern bool xstormy16_legitimate_address_p (enum machine_mode, rtx, bool);
#endif
&& INTVAL (X) + (OFFSET) < 0x8000 \
&& (INTVAL (X) + (OFFSET) < 0x100 || INTVAL (X) + (OFFSET) >= 0x7F00))
-static bool
+bool
xstormy16_legitimate_address_p (enum machine_mode mode ATTRIBUTE_UNUSED,
rtx x, bool strict)
{
return 0;
}
-/* A C expression that defines the optional machine-dependent constraint
- letters (`Q', `R', `S', `T', `U') that can be used to segregate specific
- types of operands, usually memory references, for the target machine.
- Normally this macro will not be defined. If it is required for a particular
- target machine, it should return 1 if VALUE corresponds to the operand type
- represented by the constraint letter C. If C is not defined as an extra
- constraint, the value returned should be 0 regardless of VALUE. */
-
-int
-xstormy16_extra_constraint_p (rtx x, int c)
-{
- switch (c)
- {
- /* 'Q' is for pushes. */
- case 'Q':
- return (MEM_P (x)
- && GET_CODE (XEXP (x, 0)) == POST_INC
- && XEXP (XEXP (x, 0), 0) == stack_pointer_rtx);
-
- /* 'R' is for pops. */
- case 'R':
- return (MEM_P (x)
- && GET_CODE (XEXP (x, 0)) == PRE_DEC
- && XEXP (XEXP (x, 0), 0) == stack_pointer_rtx);
-
- /* 'S' is for immediate memory addresses. */
- case 'S':
- return (MEM_P (x)
- && CONST_INT_P (XEXP (x, 0))
- && xstormy16_legitimate_address_p (VOIDmode, XEXP (x, 0), 0));
-
- /* 'T' is for Rx. */
- case 'T':
- /* Not implemented yet. */
- return 0;
-
- /* 'U' is for CONST_INT values not between 2 and 15 inclusive,
- for allocating a scratch register for 32-bit shifts. */
- case 'U':
- return (CONST_INT_P (x) && (! IN_RANGE (INTVAL (x), 2, 15)));
-
- /* 'Z' is for CONST_INT value zero. This is for adding zero to
- a register in addhi3, which would otherwise require a carry. */
- case 'Z':
- return (CONST_INT_P (x) && (INTVAL (x) == 0));
-
- case 'W':
- return xstormy16_below100_operand (x, GET_MODE (x));
-
- default:
- return 0;
- }
-}
-
int
short_memory_operand (rtx x, enum machine_mode mode)
{
#define INDEX_REG_CLASS GENERAL_REGS
-/* The following letters are unavailable, due to being used as
- constraints:
- '0'..'9'
- '<', '>'
- 'E', 'F', 'G', 'H'
- 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P'
- 'Q', 'R', 'S', 'T', 'U'
- 'V', 'X'
- 'g', 'i', 'm', 'n', 'o', 'p', 'r', 's'. */
-
-#define REG_CLASS_FROM_LETTER(CHAR) \
- ( (CHAR) == 'a' ? R0_REGS \
- : (CHAR) == 'b' ? R1_REGS \
- : (CHAR) == 'c' ? R2_REGS \
- : (CHAR) == 'd' ? R8_REGS \
- : (CHAR) == 'e' ? EIGHT_REGS \
- : (CHAR) == 't' ? TWO_REGS \
- : (CHAR) == 'z' ? ICALL_REGS \
- : NO_REGS)
-
#define REGNO_OK_FOR_BASE_P(NUM) 1
#define REGNO_OK_FOR_INDEX_P(NUM) REGNO_OK_FOR_BASE_P (NUM)
#define CLASS_MAX_NREGS(CLASS, MODE) \
((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
-#define CONST_OK_FOR_LETTER_P(VALUE, C) \
- ( (C) == 'I' ? (VALUE) >= 0 && (VALUE) <= 3 \
- : (C) == 'J' ? exact_log2 (VALUE) != -1 \
- : (C) == 'K' ? exact_log2 (~(VALUE)) != -1 \
- : (C) == 'L' ? (VALUE) >= 0 && (VALUE) <= 255 \
- : (C) == 'M' ? (VALUE) >= -255 && (VALUE) <= 0 \
- : (C) == 'N' ? (VALUE) >= -3 && (VALUE) <= 0 \
- : (C) == 'O' ? (VALUE) >= 1 && (VALUE) <= 4 \
- : (C) == 'P' ? (VALUE) >= -4 && (VALUE) <= -1 \
- : 0 )
-
-#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 0
-
-#define EXTRA_CONSTRAINT(VALUE, C) \
- xstormy16_extra_constraint_p (VALUE, C)
-
\f
/* Basic Stack Layout. */
(set_attr "psw_operand" "clobber")])
(include "predicates.md")
+(include "constraints.md")
\f
;; ::::::::::::::::::::
;; ::
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