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s390-protos.h: (s390_comparison... 

2005-04-04  Adrian Strae�tling  <straetling@de.ibm.com>

	* config/s390/s390-protos.h: (s390_comparison,
	s390_alc_comparison, s390_slb_comparison, const0_operand,
	consttable_operand, larl_operand, s_operand,
	shift_count_operand, bras_sym_operand, load_multiple_operation,
	store_multiple_operation, s390_plus_operand): Remove prototypes.
	(s390_legitimate_address_without_index_p): New prototype.
	* config/s390/s390.c: (SYMBOL_FLAG_ALIGN1, DISP_IN_RANGE): Move
	to s390.h.
	(s390_comparison, s390_alc_comparison, s390_slb_comparison,
	const0_operand, consttable_operand, larl_operand, s_operand,
	shift_count_operand, bras_sym_operand, load_multiple_operation,
	store_multiple_operation, s390_plus_operand): Move to
	predicates.md.
	(check_mode): Remove.
	(s390_branch_condition_mask): Remove 'static'. Move prototype to
	s390-protos.h.
	(s390_legitimate_address_without_index_p): New.
	* config/s390/s390.h (PREDICATE_CODES): Remove.
	* config/s390/s390.md: Include predicates.md.
	* config/s390/predicates.md: New.

From-SVN: r97554
This commit is contained in:
Adrian Straetling 2005-04-04 16:25:05 +00:00 committed by Ulrich Weigand
parent df04438806
commit 0bfc3f6970
6 changed files with 437 additions and 485 deletions
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23
gcc/ChangeLog
View File

@ -1,3 +1,26 @@
2005-04-04 Adrian Strae¤tling <straetling@de.ibm.com>
* config/s390/s390-protos.h: (s390_comparison,
s390_alc_comparison, s390_slb_comparison, const0_operand,
consttable_operand, larl_operand, s_operand,
shift_count_operand, bras_sym_operand, load_multiple_operation,
store_multiple_operation, s390_plus_operand): Remove prototypes.
(s390_legitimate_address_without_index_p): New prototype.
* config/s390/s390.c: (SYMBOL_FLAG_ALIGN1, DISP_IN_RANGE): Move
to s390.h.
(s390_comparison, s390_alc_comparison, s390_slb_comparison,
const0_operand, consttable_operand, larl_operand, s_operand,
shift_count_operand, bras_sym_operand, load_multiple_operation,
store_multiple_operation, s390_plus_operand): Move to
predicates.md.
(check_mode): Remove.
(s390_branch_condition_mask): Remove 'static'. Move prototype to
s390-protos.h.
(s390_legitimate_address_without_index_p): New.
* config/s390/s390.h (PREDICATE_CODES): Remove.
* config/s390/s390.md: Include predicates.md.
* config/s390/predicates.md: New.
2005-04-04 Eric Botcazou <ebotcazou@libertysurf.fr>
PR target/20446

386
gcc/config/s390/predicates.md Normal file
View File

@ -0,0 +1,386 @@
;; Predicate definitions for S/390 and zSeries.
;; Copyright (C) 2005 Free Software Foundation, Inc.
;; Contributed by Hartmut Penner (hpenner@de.ibm.com) and
;; Ulrich Weigand (uweigand@de.ibm.com).
;;
;; 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 2, 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 COPYING. If not, write to
;; the Free Software Foundation, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;; OP is the current operation.
;; MODE is the current operation mode.
;; operands --------------------------------------------------------------
;; Return true if OP a (const_int 0) operand.
(define_predicate "const0_operand"
(and (match_code "const_int, const_double")
(match_test "op == CONST0_RTX (mode)")))
;; Return true if OP is constant.
(define_special_predicate "consttable_operand"
(and (match_code "symbol_ref, label_ref, const, const_int, const_double")
(match_test "CONSTANT_P (op)")))
;; Return true if OP is a valid S-type operand.
(define_predicate "s_operand"
(and (match_code "subreg, mem")
(match_operand 0 "general_operand"))
{
/* Just like memory_operand, allow (subreg (mem ...))
after reload. */
if (reload_completed
&& GET_CODE (op) == SUBREG
&& GET_CODE (SUBREG_REG (op)) == MEM)
op = SUBREG_REG (op);
if (GET_CODE (op) != MEM)
return false;
if (!s390_legitimate_address_without_index_p (op))
return false;
return true;
})
;; Return true if OP is a valid operand for the BRAS instruction.
;; Allow SYMBOL_REFs and @PLT stubs.
(define_special_predicate "bras_sym_operand"
(ior (match_code "symbol_ref")
(and (match_code "const")
(and (match_test "GET_CODE (XEXP (op, 0)) == UNSPEC")
(match_test "XINT (XEXP (op, 0), 1) == UNSPEC_PLT")))))
;; Return true if OP is a PLUS that is not a legitimate
;; operand for the LA instruction.
(define_predicate "s390_plus_operand"
(and (match_code "plus")
(and (match_test "mode == Pmode")
(match_test "!legitimate_la_operand_p (op)"))))
;; Return true if OP is a valid shift count operand.
(define_predicate "shift_count_operand"
(match_code "reg, subreg, plus, const_int")
{
HOST_WIDE_INT offset = 0;
/* We can have an integer constant, an address register,
or a sum of the two. Note that reload already checks
that any register present is an address register, so
we just check for any register here. */
if (GET_CODE (op) == CONST_INT)
{
offset = INTVAL (op);
op = NULL_RTX;
}
if (op && GET_CODE (op) == PLUS && GET_CODE (XEXP (op, 1)) == CONST_INT)
{
offset = INTVAL (XEXP (op, 1));
op = XEXP (op, 0);
}
while (op && GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (op && GET_CODE (op) != REG)
return false;
/* Unfortunately we have to reject constants that are invalid
for an address, or else reload will get confused. */
if (!DISP_IN_RANGE (offset))
return false;
return true;
})
;; Return true if OP a valid operand for the LARL instruction.
(define_predicate "larl_operand"
(match_code "label_ref, symbol_ref, const, const_int, const_double")
{
/* Allow labels and local symbols. */
if (GET_CODE (op) == LABEL_REF)
return true;
if (GET_CODE (op) == SYMBOL_REF)
return ((SYMBOL_REF_FLAGS (op) & SYMBOL_FLAG_ALIGN1) == 0
&& SYMBOL_REF_TLS_MODEL (op) == 0
&& (!flag_pic || SYMBOL_REF_LOCAL_P (op)));
/* Everything else must have a CONST, so strip it. */
if (GET_CODE (op) != CONST)
return false;
op = XEXP (op, 0);
/* Allow adding *even* in-range constants. */
if (GET_CODE (op) == PLUS)
{
if (GET_CODE (XEXP (op, 1)) != CONST_INT
|| (INTVAL (XEXP (op, 1)) & 1) != 0)
return false;
if (INTVAL (XEXP (op, 1)) >= (HOST_WIDE_INT)1 << 32
|| INTVAL (XEXP (op, 1)) < -((HOST_WIDE_INT)1 << 32))
return false;
op = XEXP (op, 0);
}
/* Labels and local symbols allowed here as well. */
if (GET_CODE (op) == LABEL_REF)
return true;
if (GET_CODE (op) == SYMBOL_REF)
return ((SYMBOL_REF_FLAGS (op) & SYMBOL_FLAG_ALIGN1) == 0
&& SYMBOL_REF_TLS_MODEL (op) == 0
&& (!flag_pic || SYMBOL_REF_LOCAL_P (op)));
/* Now we must have a @GOTENT offset or @PLT stub
or an @INDNTPOFF TLS offset. */
if (GET_CODE (op) == UNSPEC
&& XINT (op, 1) == UNSPEC_GOTENT)
return true;
if (GET_CODE (op) == UNSPEC
&& XINT (op, 1) == UNSPEC_PLT)
return true;
if (GET_CODE (op) == UNSPEC
&& XINT (op, 1) == UNSPEC_INDNTPOFF)
return true;
return false;
})
;; operators --------------------------------------------------------------
;; Return nonzero if OP is a valid comparison operator
;; for a branch condition.
(define_predicate "s390_comparison"
(match_code "eq, ne, lt, gt, le, ge, ltu, gtu, leu, geu,
uneq, unlt, ungt, unle, unge, ltgt,
unordered, ordered")
{
if (GET_CODE (XEXP (op, 0)) != REG
|| REGNO (XEXP (op, 0)) != CC_REGNUM
|| XEXP (op, 1) != const0_rtx)
return false;
return (s390_branch_condition_mask (op) >= 0);
})
;; Return nonzero if OP is a valid comparison operator
;; for an ALC condition.
(define_predicate "s390_alc_comparison"
(match_code "zero_extend, sign_extend, ltu, gtu, leu, geu")
{
while (GET_CODE (op) == ZERO_EXTEND || GET_CODE (op) == SIGN_EXTEND)
op = XEXP (op, 0);
if (!COMPARISON_P (op))
return false;
if (GET_CODE (XEXP (op, 0)) != REG
|| REGNO (XEXP (op, 0)) != CC_REGNUM
|| XEXP (op, 1) != const0_rtx)
return false;
switch (GET_MODE (XEXP (op, 0)))
{
case CCL1mode:
return GET_CODE (op) == LTU;
case CCL2mode:
return GET_CODE (op) == LEU;
case CCL3mode:
return GET_CODE (op) == GEU;
case CCUmode:
return GET_CODE (op) == GTU;
case CCURmode:
return GET_CODE (op) == LTU;
case CCSmode:
return GET_CODE (op) == UNGT;
case CCSRmode:
return GET_CODE (op) == UNLT;
default:
return false;
}
})
;; Return nonzero if OP is a valid comparison operator
;; for an SLB condition.
(define_predicate "s390_slb_comparison"
(match_code "zero_extend, sign_extend, ltu, gtu, leu, geu")
{
while (GET_CODE (op) == ZERO_EXTEND || GET_CODE (op) == SIGN_EXTEND)
op = XEXP (op, 0);
if (!COMPARISON_P (op))
return false;
if (GET_CODE (XEXP (op, 0)) != REG
|| REGNO (XEXP (op, 0)) != CC_REGNUM
|| XEXP (op, 1) != const0_rtx)
return false;
switch (GET_MODE (XEXP (op, 0)))
{
case CCL1mode:
return GET_CODE (op) == GEU;
case CCL2mode:
return GET_CODE (op) == GTU;
case CCL3mode:
return GET_CODE (op) == LTU;
case CCUmode:
return GET_CODE (op) == LEU;
case CCURmode:
return GET_CODE (op) == GEU;
case CCSmode:
return GET_CODE (op) == LE;
case CCSRmode:
return GET_CODE (op) == GE;
default:
return false;
}
})
;; Return true if OP is a load multiple operation. It is known to be a
;; PARALLEL and the first section will be tested.
(define_special_predicate "load_multiple_operation"
(match_code "parallel")
{
enum machine_mode elt_mode;
int count = XVECLEN (op, 0);
unsigned int dest_regno;
rtx src_addr;
int i, off;
/* Perform a quick check so we don't blow up below. */
if (count <= 1
|| GET_CODE (XVECEXP (op, 0, 0)) != SET
|| GET_CODE (SET_DEST (XVECEXP (op, 0, 0))) != REG
|| GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) != MEM)
return false;
dest_regno = REGNO (SET_DEST (XVECEXP (op, 0, 0)));
src_addr = XEXP (SET_SRC (XVECEXP (op, 0, 0)), 0);
elt_mode = GET_MODE (SET_DEST (XVECEXP (op, 0, 0)));
/* Check, is base, or base + displacement. */
if (GET_CODE (src_addr) == REG)
off = 0;
else if (GET_CODE (src_addr) == PLUS
&& GET_CODE (XEXP (src_addr, 0)) == REG
&& GET_CODE (XEXP (src_addr, 1)) == CONST_INT)
{
off = INTVAL (XEXP (src_addr, 1));
src_addr = XEXP (src_addr, 0);
}
else
return false;
for (i = 1; i < count; i++)
{
rtx elt = XVECEXP (op, 0, i);
if (GET_CODE (elt) != SET
|| GET_CODE (SET_DEST (elt)) != REG
|| GET_MODE (SET_DEST (elt)) != elt_mode
|| REGNO (SET_DEST (elt)) != dest_regno + i
|| GET_CODE (SET_SRC (elt)) != MEM
|| GET_MODE (SET_SRC (elt)) != elt_mode
|| GET_CODE (XEXP (SET_SRC (elt), 0)) != PLUS
|| ! rtx_equal_p (XEXP (XEXP (SET_SRC (elt), 0), 0), src_addr)
|| GET_CODE (XEXP (XEXP (SET_SRC (elt), 0), 1)) != CONST_INT
|| INTVAL (XEXP (XEXP (SET_SRC (elt), 0), 1))
!= off + i * GET_MODE_SIZE (elt_mode))
return false;
}
return true;
})
;; Return true if OP is a store multiple operation. It is known to be a
;; PARALLEL and the first section will be tested.
(define_special_predicate "store_multiple_operation"
(match_code "parallel")
{
enum machine_mode elt_mode;
int count = XVECLEN (op, 0);
unsigned int src_regno;
rtx dest_addr;
int i, off;
/* Perform a quick check so we don't blow up below. */
if (count <= 1
|| GET_CODE (XVECEXP (op, 0, 0)) != SET
|| GET_CODE (SET_DEST (XVECEXP (op, 0, 0))) != MEM
|| GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) != REG)
return false;
src_regno = REGNO (SET_SRC (XVECEXP (op, 0, 0)));
dest_addr = XEXP (SET_DEST (XVECEXP (op, 0, 0)), 0);
elt_mode = GET_MODE (SET_SRC (XVECEXP (op, 0, 0)));
/* Check, is base, or base + displacement. */
if (GET_CODE (dest_addr) == REG)
off = 0;
else if (GET_CODE (dest_addr) == PLUS
&& GET_CODE (XEXP (dest_addr, 0)) == REG
&& GET_CODE (XEXP (dest_addr, 1)) == CONST_INT)
{
off = INTVAL (XEXP (dest_addr, 1));
dest_addr = XEXP (dest_addr, 0);
}
else
return false;
for (i = 1; i < count; i++)
{
rtx elt = XVECEXP (op, 0, i);
if (GET_CODE (elt) != SET
|| GET_CODE (SET_SRC (elt)) != REG
|| GET_MODE (SET_SRC (elt)) != elt_mode
|| REGNO (SET_SRC (elt)) != src_regno + i
|| GET_CODE (SET_DEST (elt)) != MEM
|| GET_MODE (SET_DEST (elt)) != elt_mode
|| GET_CODE (XEXP (SET_DEST (elt), 0)) != PLUS
|| ! rtx_equal_p (XEXP (XEXP (SET_DEST (elt), 0), 0), dest_addr)
|| GET_CODE (XEXP (XEXP (SET_DEST (elt), 0), 1)) != CONST_INT
|| INTVAL (XEXP (XEXP (SET_DEST (elt), 0), 1))
!= off + i * GET_MODE_SIZE (elt_mode))
return false;
}
return true;
})

14
gcc/config/s390/s390-protos.h
View File

@ -33,14 +33,6 @@ extern void s390_conditional_register_usage (void);
#ifdef RTX_CODE
extern int s390_extra_constraint_str (rtx, int, const char *);
extern int s390_const_ok_for_constraint_p (HOST_WIDE_INT, int, const char *);
extern int const0_operand (rtx, enum machine_mode);
extern int consttable_operand (rtx, enum machine_mode);
extern int larl_operand (rtx, enum machine_mode);
extern int s_operand (rtx, enum machine_mode);
extern int shift_count_operand (rtx, enum machine_mode);
extern int bras_sym_operand (rtx, enum machine_mode);
extern int load_multiple_operation (rtx, enum machine_mode);
extern int store_multiple_operation (rtx, enum machine_mode);
extern int s390_single_part (rtx, enum machine_mode, enum machine_mode, int);
extern unsigned HOST_WIDE_INT s390_extract_part (rtx, enum machine_mode, int);
extern bool s390_split_ok_p (rtx, rtx, enum machine_mode, int);
@ -51,9 +43,6 @@ extern int s390_match_ccmode (rtx, enum machine_mode);
extern enum machine_mode s390_tm_ccmode (rtx, rtx, int);
extern enum machine_mode s390_select_ccmode (enum rtx_code, rtx, rtx);
extern void s390_canonicalize_comparison (enum rtx_code *, rtx *, rtx *);
extern int s390_comparison (rtx op, enum machine_mode mode);
extern int s390_alc_comparison (rtx op, enum machine_mode mode);
extern int s390_slb_comparison (rtx op, enum machine_mode mode);
extern rtx s390_emit_compare (enum rtx_code, rtx, rtx);
extern void s390_emit_jump (rtx, rtx);
extern int symbolic_reference_mentioned_p (rtx);
@ -74,7 +63,6 @@ extern enum reg_class s390_secondary_input_reload_class (enum reg_class,
extern enum reg_class s390_secondary_output_reload_class (enum reg_class,
enum machine_mode,
rtx);
extern int s390_plus_operand (rtx, enum machine_mode);
extern void s390_expand_plus_operand (rtx, rtx, rtx);
extern void emit_symbolic_move (rtx *);
extern void s390_load_address (rtx, rtx);
@ -103,6 +91,8 @@ extern void s390_output_dwarf_dtprel (FILE*, int, rtx);
extern int s390_agen_dep_p (rtx, rtx);
extern rtx s390_load_got (void);
extern void s390_emit_tpf_eh_return (rtx);
extern bool s390_legitimate_address_without_index_p (rtx);
extern int s390_branch_condition_mask (rtx);
#endif /* RTX_CODE */

468
gcc/config/s390/s390.c
View File

@ -52,9 +52,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#include "optabs.h"
#include "tree-gimple.h"
/* Machine-specific symbol_ref flags. */
#define SYMBOL_FLAG_ALIGN1 (SYMBOL_FLAG_MACH_DEP << 0)
static bool s390_assemble_integer (rtx, unsigned int, int);
static void s390_encode_section_info (tree, rtx, int);
@ -380,9 +377,7 @@ struct machine_function GTY(())
(1 << (BITNUM))))
static int s390_match_ccmode_set (rtx, enum machine_mode);
static int s390_branch_condition_mask (rtx);
static const char *s390_branch_condition_mnemonic (rtx, int);
static int check_mode (rtx, enum machine_mode *);
static int s390_short_displacement (rtx);
static int s390_decompose_address (rtx, struct s390_address *);
static rtx get_thread_pointer (void);
@ -413,10 +408,20 @@ static int s390_function_arg_size (enum machine_mode, tree);
static bool s390_function_arg_float (enum machine_mode, tree);
static struct machine_function * s390_init_machine_status (void);
/* Check whether integer displacement is in range. */
#define DISP_IN_RANGE(d) \
(TARGET_LONG_DISPLACEMENT? ((d) >= -524288 && (d) <= 524287) \
: ((d) >= 0 && (d) <= 4095))
/* Return true if CODE is a valid address without index. */
bool
s390_legitimate_address_without_index_p (rtx op)
{
struct s390_address addr;
if (!s390_decompose_address (XEXP (op, 0), &addr))
return false;
if (addr.indx)
return false;
return true;
}
/* Return true if SET either doesn't set the CC register, or else
the source and destination have matching CC modes and that
@ -791,126 +796,10 @@ s390_emit_jump (rtx target, rtx cond)
emit_jump_insn (insn);
}
/* Return nonzero if OP is a valid comparison operator
for a branch condition in mode MODE. */
int
s390_comparison (rtx op, enum machine_mode mode)
{
if (mode != VOIDmode && mode != GET_MODE (op))
return 0;
if (!COMPARISON_P (op))
return 0;
if (GET_CODE (XEXP (op, 0)) != REG
|| REGNO (XEXP (op, 0)) != CC_REGNUM
|| XEXP (op, 1) != const0_rtx)
return 0;
return s390_branch_condition_mask (op) >= 0;
}
/* Return nonzero if OP is a valid comparison operator
for an ALC condition in mode MODE. */
int
s390_alc_comparison (rtx op, enum machine_mode mode)
{
if (mode != VOIDmode && mode != GET_MODE (op))
return 0;
while (GET_CODE (op) == ZERO_EXTEND || GET_CODE (op) == SIGN_EXTEND)
op = XEXP (op, 0);
if (!COMPARISON_P (op))
return 0;
if (GET_CODE (XEXP (op, 0)) != REG
|| REGNO (XEXP (op, 0)) != CC_REGNUM
|| XEXP (op, 1) != const0_rtx)
return 0;
switch (GET_MODE (XEXP (op, 0)))
{
case CCL1mode:
return GET_CODE (op) == LTU;
case CCL2mode:
return GET_CODE (op) == LEU;
case CCL3mode:
return GET_CODE (op) == GEU;
case CCUmode:
return GET_CODE (op) == GTU;
case CCURmode:
return GET_CODE (op) == LTU;
case CCSmode:
return GET_CODE (op) == UNGT;
case CCSRmode:
return GET_CODE (op) == UNLT;
default:
return 0;
}
}
/* Return nonzero if OP is a valid comparison operator
for an SLB condition in mode MODE. */
int
s390_slb_comparison (rtx op, enum machine_mode mode)
{
if (mode != VOIDmode && mode != GET_MODE (op))
return 0;
while (GET_CODE (op) == ZERO_EXTEND || GET_CODE (op) == SIGN_EXTEND)
op = XEXP (op, 0);
if (!COMPARISON_P (op))
return 0;
if (GET_CODE (XEXP (op, 0)) != REG
|| REGNO (XEXP (op, 0)) != CC_REGNUM
|| XEXP (op, 1) != const0_rtx)
return 0;
switch (GET_MODE (XEXP (op, 0)))
{
case CCL1mode:
return GET_CODE (op) == GEU;
case CCL2mode:
return GET_CODE (op) == GTU;
case CCL3mode:
return GET_CODE (op) == LTU;
case CCUmode:
return GET_CODE (op) == LEU;
case CCURmode:
return GET_CODE (op) == GEU;
case CCSmode:
return GET_CODE (op) == LE;
case CCSRmode:
return GET_CODE (op) == GE;
default:
return 0;
}
}
/* Return branch condition mask to implement a branch
specified by CODE. Return -1 for invalid comparisons. */
static int
int
s390_branch_condition_mask (rtx code)
{
const int CC0 = 1 << 3;
@ -1508,172 +1397,6 @@ s390_safe_attr_type (rtx insn)
return TYPE_NONE;
}
/* Return true if OP a (const_int 0) operand.
OP is the current operation.
MODE is the current operation mode. */
int
const0_operand (register rtx op, enum machine_mode mode)
{
return op == CONST0_RTX (mode);
}
/* Return true if OP is constant.
OP is the current operation.
MODE is the current operation mode. */
int
consttable_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
return CONSTANT_P (op);
}
/* Return true if the mode of operand OP matches MODE.
If MODE is set to VOIDmode, set it to the mode of OP. */
static int
check_mode (register rtx op, enum machine_mode *mode)
{
if (*mode == VOIDmode)
*mode = GET_MODE (op);
else
{
if (GET_MODE (op) != VOIDmode && GET_MODE (op) != *mode)
return 0;
}
return 1;
}
/* Return true if OP a valid operand for the LARL instruction.
OP is the current operation.
MODE is the current operation mode. */
int
larl_operand (register rtx op, enum machine_mode mode)
{
if (! check_mode (op, &mode))
return 0;
/* Allow labels and local symbols. */
if (GET_CODE (op) == LABEL_REF)
return 1;
if (GET_CODE (op) == SYMBOL_REF)
return ((SYMBOL_REF_FLAGS (op) & SYMBOL_FLAG_ALIGN1) == 0
&& SYMBOL_REF_TLS_MODEL (op) == 0
&& (!flag_pic || SYMBOL_REF_LOCAL_P (op)));
/* Everything else must have a CONST, so strip it. */
if (GET_CODE (op) != CONST)
return 0;
op = XEXP (op, 0);
/* Allow adding *even* in-range constants. */
if (GET_CODE (op) == PLUS)
{
if (GET_CODE (XEXP (op, 1)) != CONST_INT
|| (INTVAL (XEXP (op, 1)) & 1) != 0)
return 0;
#if HOST_BITS_PER_WIDE_INT > 32
if (INTVAL (XEXP (op, 1)) >= (HOST_WIDE_INT)1 << 32
|| INTVAL (XEXP (op, 1)) < -((HOST_WIDE_INT)1 << 32))
return 0;
#endif
op = XEXP (op, 0);
}
/* Labels and local symbols allowed here as well. */
if (GET_CODE (op) == LABEL_REF)
return 1;
if (GET_CODE (op) == SYMBOL_REF)
return ((SYMBOL_REF_FLAGS (op) & SYMBOL_FLAG_ALIGN1) == 0
&& SYMBOL_REF_TLS_MODEL (op) == 0
&& (!flag_pic || SYMBOL_REF_LOCAL_P (op)));
/* Now we must have a @GOTENT offset or @PLT stub
or an @INDNTPOFF TLS offset. */
if (GET_CODE (op) == UNSPEC
&& XINT (op, 1) == UNSPEC_GOTENT)
return 1;
if (GET_CODE (op) == UNSPEC
&& XINT (op, 1) == UNSPEC_PLT)
return 1;
if (GET_CODE (op) == UNSPEC
&& XINT (op, 1) == UNSPEC_INDNTPOFF)
return 1;
return 0;
}
/* Return true if OP is a valid S-type operand.
OP is the current operation.
MODE is the current operation mode. */
int
s_operand (rtx op, enum machine_mode mode)
{
struct s390_address addr;
/* Call general_operand first, so that we don't have to
check for many special cases. */
if (!general_operand (op, mode))
return 0;
/* Just like memory_operand, allow (subreg (mem ...))
after reload. */
if (reload_completed
&& GET_CODE (op) == SUBREG
&& GET_CODE (SUBREG_REG (op)) == MEM)
op = SUBREG_REG (op);
if (GET_CODE (op) != MEM)
return 0;
if (!s390_decompose_address (XEXP (op, 0), &addr))
return 0;
if (addr.indx)
return 0;
return 1;
}
/* Return true if OP a valid shift count operand.
OP is the current operation.
MODE is the current operation mode. */
int
shift_count_operand (rtx op, enum machine_mode mode)
{
HOST_WIDE_INT offset = 0;
if (! check_mode (op, &mode))
return 0;
/* We can have an integer constant, an address register,
or a sum of the two. Note that reload already checks
that any register present is an address register, so
we just check for any register here. */
if (GET_CODE (op) == CONST_INT)
{
offset = INTVAL (op);
op = NULL_RTX;
}
if (op && GET_CODE (op) == PLUS && GET_CODE (XEXP (op, 1)) == CONST_INT)
{
offset = INTVAL (XEXP (op, 1));
op = XEXP (op, 0);
}
while (op && GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (op && GET_CODE (op) != REG)
return 0;
/* Unfortunately we have to reject constants that are invalid
for an address, or else reload will get confused. */
if (!DISP_IN_RANGE (offset))
return 0;
return 1;
}
/* Return true if DISP is a valid short displacement. */
static int
@ -2112,27 +1835,6 @@ s390_address_cost (rtx addr)
return ad.indx? COSTS_N_INSNS (1) + 1 : COSTS_N_INSNS (1);
}
/* Return true if OP is a valid operand for the BRAS instruction.
OP is the current operation.
MODE is the current operation mode. */
int
bras_sym_operand (register rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
register enum rtx_code code = GET_CODE (op);
/* Allow SYMBOL_REFs. */
if (code == SYMBOL_REF)
return 1;
/* Allow @PLT stubs. */
if (code == CONST
&& GET_CODE (XEXP (op, 0)) == UNSPEC
&& XINT (XEXP (op, 0), 1) == UNSPEC_PLT)
return 1;
return 0;
}
/* If OP is a SYMBOL_REF of a thread-local symbol, return its TLS mode,
otherwise return 0. */
@ -2144,126 +1846,6 @@ tls_symbolic_operand (register rtx op)
return SYMBOL_REF_TLS_MODEL (op);
}
/* Return true if OP is a load multiple operation. It is known to be a
PARALLEL and the first section will be tested.
OP is the current operation.
MODE is the current operation mode. */
int
load_multiple_operation (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
enum machine_mode elt_mode;
int count = XVECLEN (op, 0);
unsigned int dest_regno;
rtx src_addr;
int i, off;
/* Perform a quick check so we don't blow up below. */
if (count <= 1
|| GET_CODE (XVECEXP (op, 0, 0)) != SET
|| GET_CODE (SET_DEST (XVECEXP (op, 0, 0))) != REG
|| GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) != MEM)
return 0;
dest_regno = REGNO (SET_DEST (XVECEXP (op, 0, 0)));
src_addr = XEXP (SET_SRC (XVECEXP (op, 0, 0)), 0);
elt_mode = GET_MODE (SET_DEST (XVECEXP (op, 0, 0)));
/* Check, is base, or base + displacement. */
if (GET_CODE (src_addr) == REG)
off = 0;
else if (GET_CODE (src_addr) == PLUS
&& GET_CODE (XEXP (src_addr, 0)) == REG
&& GET_CODE (XEXP (src_addr, 1)) == CONST_INT)
{
off = INTVAL (XEXP (src_addr, 1));
src_addr = XEXP (src_addr, 0);
}
else
return 0;
for (i = 1; i < count; i++)
{
rtx elt = XVECEXP (op, 0, i);
if (GET_CODE (elt) != SET
|| GET_CODE (SET_DEST (elt)) != REG
|| GET_MODE (SET_DEST (elt)) != elt_mode
|| REGNO (SET_DEST (elt)) != dest_regno + i
|| GET_CODE (SET_SRC (elt)) != MEM
|| GET_MODE (SET_SRC (elt)) != elt_mode
|| GET_CODE (XEXP (SET_SRC (elt), 0)) != PLUS
|| ! rtx_equal_p (XEXP (XEXP (SET_SRC (elt), 0), 0), src_addr)
|| GET_CODE (XEXP (XEXP (SET_SRC (elt), 0), 1)) != CONST_INT
|| INTVAL (XEXP (XEXP (SET_SRC (elt), 0), 1))
!= off + i * GET_MODE_SIZE (elt_mode))
return 0;
}
return 1;
}
/* Return true if OP is a store multiple operation. It is known to be a
PARALLEL and the first section will be tested.
OP is the current operation.
MODE is the current operation mode. */
int
store_multiple_operation (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
{
enum machine_mode elt_mode;
int count = XVECLEN (op, 0);
unsigned int src_regno;
rtx dest_addr;
int i, off;
/* Perform a quick check so we don't blow up below. */
if (count <= 1
|| GET_CODE (XVECEXP (op, 0, 0)) != SET
|| GET_CODE (SET_DEST (XVECEXP (op, 0, 0))) != MEM
|| GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) != REG)
return 0;
src_regno = REGNO (SET_SRC (XVECEXP (op, 0, 0)));
dest_addr = XEXP (SET_DEST (XVECEXP (op, 0, 0)), 0);
elt_mode = GET_MODE (SET_SRC (XVECEXP (op, 0, 0)));
/* Check, is base, or base + displacement. */
if (GET_CODE (dest_addr) == REG)
off = 0;
else if (GET_CODE (dest_addr) == PLUS
&& GET_CODE (XEXP (dest_addr, 0)) == REG
&& GET_CODE (XEXP (dest_addr, 1)) == CONST_INT)
{
off = INTVAL (XEXP (dest_addr, 1));
dest_addr = XEXP (dest_addr, 0);
}
else
return 0;
for (i = 1; i < count; i++)
{
rtx elt = XVECEXP (op, 0, i);
if (GET_CODE (elt) != SET
|| GET_CODE (SET_SRC (elt)) != REG
|| GET_MODE (SET_SRC (elt)) != elt_mode
|| REGNO (SET_SRC (elt)) != src_regno + i
|| GET_CODE (SET_DEST (elt)) != MEM
|| GET_MODE (SET_DEST (elt)) != elt_mode
|| GET_CODE (XEXP (SET_DEST (elt), 0)) != PLUS
|| ! rtx_equal_p (XEXP (XEXP (SET_DEST (elt), 0), 0), dest_addr)
|| GET_CODE (XEXP (XEXP (SET_DEST (elt), 0), 1)) != CONST_INT
|| INTVAL (XEXP (XEXP (SET_DEST (elt), 0), 1))
!= off + i * GET_MODE_SIZE (elt_mode))
return 0;
}
return 1;
}
/* Split DImode access register reference REG (on 64-bit) into its constituent
low and high parts, and store them into LO and HI. Note that gen_lowpart/
gen_highpart cannot be used as they assume all registers are word-sized,
@ -2570,26 +2152,6 @@ s390_secondary_output_reload_class (enum reg_class class,
return NO_REGS;
}
/* Return true if OP is a PLUS that is not a legitimate
operand for the LA instruction.
OP is the current operation.
MODE is the current operation mode. */
int
s390_plus_operand (register rtx op, enum machine_mode mode)
{
if (!check_mode (op, &mode) || mode != Pmode)
return FALSE;
if (GET_CODE (op) != PLUS)
return FALSE;
if (legitimate_la_operand_p (op))
return FALSE;
return TRUE;
}
/* Generate code to load SRC, which is PLUS that is not a
legitimate operand for the LA instruction, into TARGET.
SCRATCH may be used as scratch register. */

28
gcc/config/s390/s390.h
View File

@ -1043,26 +1043,6 @@ do { \
/* Miscellaneous parameters. */
/* Define the codes that are matched by predicates in aux-output.c. */
#define PREDICATE_CODES \
{"s_operand", { SUBREG, MEM }}, \
{"shift_count_operand", { REG, SUBREG, PLUS, CONST_INT }}, \
{"bras_sym_operand",{ SYMBOL_REF, CONST }}, \
{"larl_operand", { SYMBOL_REF, CONST, CONST_INT, CONST_DOUBLE }}, \
{"load_multiple_operation", {PARALLEL}}, \
{"store_multiple_operation", {PARALLEL}}, \
{"const0_operand", { CONST_INT, CONST_DOUBLE }}, \
{"consttable_operand", { SYMBOL_REF, LABEL_REF, CONST, \
CONST_INT, CONST_DOUBLE }}, \
{"s390_plus_operand", { PLUS }}, \
{"s390_comparison", { EQ, NE, LT, GT, LE, GE, LTU, GTU, LEU, GEU, \
UNEQ, UNLT, UNGT, UNLE, UNGE, LTGT, \
UNORDERED, ORDERED }}, \
{"s390_alc_comparison", { ZERO_EXTEND, SIGN_EXTEND, \
LTU, GTU, LEU, GEU }}, \
{"s390_slb_comparison", { ZERO_EXTEND, SIGN_EXTEND, \
LTU, GTU, LEU, GEU }},
/* Specify the machine mode that this machine uses for the index in the
tablejump instruction. */
#define CASE_VECTOR_MODE (TARGET_64BIT ? DImode : SImode)
@ -1083,4 +1063,12 @@ do { \
indexing purposes) so give the MEM rtx a byte's mode. */
#define FUNCTION_MODE QImode
/* Machine-specific symbol_ref flags. */
#define SYMBOL_FLAG_ALIGN1 (SYMBOL_FLAG_MACH_DEP << 0)
/* Check whether integer displacement is in range. */
#define DISP_IN_RANGE(d) \
(TARGET_LONG_DISPLACEMENT? ((d) >= -524288 && (d) <= 524287) \
: ((d) >= 0 && (d) <= 4095))
#endif

3
gcc/config/s390/s390.md
View File

@ -229,6 +229,9 @@
;; Pipeline description for z990.
(include "2084.md")
;; Predicates
(include "predicates.md")
;;
;;- Compare instructions.
;;