-;; Machine description of the Mitsubishi M32R cpu for GNU C compiler
-;; Copyright (C) 1996, 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
+;; Machine description of the Renesas M32R cpu for GNU C compiler
+;; Copyright (C) 1996, 1997, 1998, 1999, 2001, 2003, 2004
+; Free Software Foundation, Inc.
-;; This file is part of GNU CC.
+;; This file is part of GCC.
-;; GNU CC 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 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.
-;; GNU CC 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.
+;; 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 GNU CC; see the file COPYING. If not, write to
+;; 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.
;; See file "rtl.def" for documentation on define_insn, match_*, et. al.
-
-;; unspec usage
-;; 0 - blockage
-;; 1 - flush_icache
-;; 2 - load_sda_base
-;; 3 - setting carry in addx/subx instructions.
\f
+;; UNSPEC_VOLATILE usage
+(define_constants
+ [(UNSPECV_BLOCKAGE 0)
+ (UNSPECV_FLUSH_ICACHE 1)])
+
+;; UNSPEC usage
+(define_constants
+ [(UNSPEC_LOAD_SDA_BASE 2)
+ (UNSPEC_SET_CBIT 3)
+ (UNSPEC_PIC_LOAD_ADDR 4)
+ (UNSPEC_GET_PC 5)
+ (UNSPEC_GOTOFF 6)
+ ])
+
;; Insn type. Used to default other attribute values.
(define_attr "type"
"int2,int4,load2,load4,load8,store2,store4,store8,shift2,shift4,mul2,div4,uncond_branch,branch,call,multi,misc"
[(set_attr "length" "4")
(set_attr "type" "multi")])
-
-;; Whether an instruction is 16-bit or 32-bit
+;; Whether an instruction is short (16-bit) or long (32-bit).
(define_attr "insn_size" "short,long"
(if_then_else (eq_attr "type" "int2,load2,store2,shift2,mul2")
(const_string "short")
(const_string "long")))
-(define_attr "debug" "no,yes"
- (const (symbol_ref "(TARGET_DEBUG != 0)")))
-
-(define_attr "opt_size" "no,yes"
- (const (symbol_ref "(optimize_size != 0)")))
-
-(define_attr "m32r" "no,yes"
- (const (symbol_ref "(TARGET_M32R != 0)")))
-
-(define_attr "m32rx" "no,yes"
- (const (symbol_ref "(TARGET_M32RX != 0)")))
-
-(define_attr "m32rx_pipeline" "either,s,o,long,m32r"
- (cond [(eq_attr "m32rx" "no")
- (const_string "m32r")
-
+;; The target CPU we're compiling for.
+(define_attr "cpu" "m32r,m32r2,m32rx"
+ (cond [(ne (symbol_ref "TARGET_M32RX") (const_int 0))
+ (const_string "m32rx")
+ (ne (symbol_ref "TARGET_M32R2") (const_int 0))
+ (const_string "m32r2")]
+ (const_string "m32r")))
+
+;; Defines the pipeline where an instruction can be executed on.
+;; For the M32R, a short instruction can execute one of the two pipes.
+;; For the M32Rx, the restrictions are modelled in the second
+;; condition of this attribute definition.
+(define_attr "m32r_pipeline" "either,s,o,long"
+ (cond [(and (eq_attr "cpu" "m32r")
+ (eq_attr "insn_size" "short"))
+ (const_string "either")
(eq_attr "insn_size" "!short")
- (const_string "long")]
-
- (cond [(eq_attr "type" "int2")
- (const_string "either")
-
- (eq_attr "type" "load2,store2,shift2,uncond_branch,branch,call")
- (const_string "o")
-
- (eq_attr "type" "mul2")
- (const_string "s")]
-
- (const_string "long"))))
+ (const_string "long")]
+ (cond [(eq_attr "type" "int2")
+ (const_string "either")
+ (eq_attr "type" "load2,store2,shift2,uncond_branch,branch,call")
+ (const_string "o")
+ (eq_attr "type" "mul2")
+ (const_string "s")]
+ (const_string "long"))))
\f
;; ::::::::::::::::::::
;; ::
-;; :: Function Units
+;; :: Pipeline description
;; ::
;; ::::::::::::::::::::
-;; On most RISC machines, there are instructions whose results are not
-;; available for a specific number of cycles. Common cases are instructions
-;; that load data from memory. On many machines, a pipeline stall will result
-;; if the data is referenced too soon after the load instruction.
-
-;; In addition, many newer microprocessors have multiple function units,
-;; usually one for integer and one for floating point, and often will incur
-;; pipeline stalls when a result that is needed is not yet ready.
-
-;; The descriptions in this section allow the specification of how much time
-;; must elapse between the execution of an instruction and the time when its
-;; result is used. It also allows specification of when the execution of an
-;; instruction will delay execution of similar instructions due to function
-;; unit conflicts.
-
-;; For the purposes of the specifications in this section, a machine is divided
-;; into "function units", each of which execute a specific class of
-;; instructions in first-in-first-out order. Function units that accept one
-;; instruction each cycle and allow a result to be used in the succeeding
-;; instruction (usually via forwarding) need not be specified. Classic RISC
-;; microprocessors will normally have a single function unit, which we can call
-;; `memory'. The newer "superscalar" processors will often have function units
-;; for floating point operations, usually at least a floating point adder and
-;; multiplier.
-
-;; Each usage of a function units by a class of insns is specified with a
-;; `define_function_unit' expression, which looks like this:
-
-;; (define_function_unit NAME MULTIPLICITY SIMULTANEITY TEST READY-DELAY
-;; ISSUE-DELAY [CONFLICT-LIST])
-
-;; NAME is a string giving the name of the function unit.
-
-;; MULTIPLICITY is an integer specifying the number of identical units in the
-;; processor. If more than one unit is specified, they will be scheduled
-;; independently. Only truly independent units should be counted; a pipelined
-;; unit should be specified as a single unit. (The only common example of a
-;; machine that has multiple function units for a single instruction class that
-;; are truly independent and not pipelined are the two multiply and two
-;; increment units of the CDC 6600.)
-
-;; SIMULTANEITY specifies the maximum number of insns that can be executing in
-;; each instance of the function unit simultaneously or zero if the unit is
-;; pipelined and has no limit.
-
-;; All `define_function_unit' definitions referring to function unit NAME must
-;; have the same name and values for MULTIPLICITY and SIMULTANEITY.
-
-;; TEST is an attribute test that selects the insns we are describing in this
-;; definition. Note that an insn may use more than one function unit and a
-;; function unit may be specified in more than one `define_function_unit'.
-
-;; READY-DELAY is an integer that specifies the number of cycles after which
-;; the result of the instruction can be used without introducing any stalls.
-
-;; ISSUE-DELAY is an integer that specifies the number of cycles after the
-;; instruction matching the TEST expression begins using this unit until a
-;; subsequent instruction can begin. A cost of N indicates an N-1 cycle delay.
-;; A subsequent instruction may also be delayed if an earlier instruction has a
-;; longer READY-DELAY value. This blocking effect is computed using the
-;; SIMULTANEITY, READY-DELAY, ISSUE-DELAY, and CONFLICT-LIST terms. For a
-;; normal non-pipelined function unit, SIMULTANEITY is one, the unit is taken
-;; to block for the READY-DELAY cycles of the executing insn, and smaller
-;; values of ISSUE-DELAY are ignored.
-
-;; CONFLICT-LIST is an optional list giving detailed conflict costs for this
-;; unit. If specified, it is a list of condition test expressions to be
-;; applied to insns chosen to execute in NAME following the particular insn
-;; matching TEST that is already executing in NAME. For each insn in the list,
-;; ISSUE-DELAY specifies the conflict cost; for insns not in the list, the cost
-;; is zero. If not specified, CONFLICT-LIST defaults to all instructions that
-;; use the function unit.
-
-;; Typical uses of this vector are where a floating point function unit can
-;; pipeline either single- or double-precision operations, but not both, or
-;; where a memory unit can pipeline loads, but not stores, etc.
-
-;; As an example, consider a classic RISC machine where the result of a load
-;; instruction is not available for two cycles (a single "delay" instruction is
-;; required) and where only one load instruction can be executed
-;; simultaneously. This would be specified as:
-
-;; (define_function_unit "memory" 1 1 (eq_attr "type" "load") 2 0)
-
-;; For the case of a floating point function unit that can pipeline
-;; either single or double precision, but not both, the following could be
-;; specified:
+;; This model is based on Chapter 2, Appendix 3 and Appendix 4 of the
+;; "M32R-FPU Software Manual", Revision 1.01, plus additional information
+;; obtained by our best friend and mine, Google.
+;;
+;; The pipeline is modelled as a fetch unit, and a core with a memory unit,
+;; two execution units, where "fetch" models IF and D, "memory" for MEM1
+;; and MEM2, and "EXEC" for E, E1, E2, EM, and EA. Writeback and
+;; bypasses are not modelled.
+(define_automaton "m32r")
+
+;; We pretend there are two short (16 bits) instruction fetchers. The
+;; "s" short fetcher cannot be reserved until the "o" short fetcher is
+;; reserved. Some instructions reserve both the left and right fetchers.
+;; These fetch units are a hack to get GCC to better pack the instructions
+;; for the M32Rx processor, which has two execution pipes.
+;;
+;; In reality there is only one decoder, which can decode either two 16 bits
+;; instructions, or a single 32 bits instruction.
;;
-;; (define_function_unit "fp" 1 0
-;; (eq_attr "type" "sp_fp") 4 4
-;; [(eq_attr "type" "dp_fp")])
+;; Note, "fetch" models both the IF and the D pipeline stages.
;;
-;; (define_function_unit "fp" 1 0
-;; (eq_attr "type" "dp_fp") 4 4
-;; [(eq_attr "type" "sp_fp")])
-
-;; Note: The scheduler attempts to avoid function unit conflicts and uses all
-;; the specifications in the `define_function_unit' expression. It has
-;; recently come to our attention that these specifications may not allow
-;; modeling of some of the newer "superscalar" processors that have insns using
-;; multiple pipelined units. These insns will cause a potential conflict for
-;; the second unit used during their execution and there is no way of
-;; representing that conflict. We welcome any examples of how function unit
-;; conflicts work in such processors and suggestions for their representation.
-
-;; Function units of the M32R
-;; Units that take one cycle do not need to be specified.
-
-;; (define_function_unit {name} {multiplicity} {simulataneity} {test}
-;; {ready-delay} {issue-delay} [{conflict-list}])
-
-;; Hack to get GCC to better pack the instructions.
-;; We pretend there is a separate long function unit that conflicts with
-;; both the left and right 16 bit insn slots.
-
-(define_function_unit "short" 2 2
- (and (eq_attr "m32r" "yes")
+;; The m32rx core has two execution pipes. We name them o_E and s_E.
+;; In addition, there's a memory unit.
+
+(define_cpu_unit "o_IF,s_IF,o_E,s_E,memory" "m32r")
+
+;; Prevent the s pipe from being reserved before the o pipe.
+(absence_set "s_IF" "o_IF")
+(absence_set "s_E" "o_E")
+
+;; On the M32Rx, long instructions execute on both pipes, so reserve
+;; both fetch slots and both pipes.
+(define_reservation "long_IF" "o_IF+s_IF")
+(define_reservation "long_E" "o_E+s_E")
+
+;; ::::::::::::::::::::
+
+;; Simple instructions do 4 stages: IF D E WB. WB is not modelled.
+;; Hence, ready latency is 1.
+(define_insn_reservation "short_left" 1
+ (and (eq_attr "m32r_pipeline" "o")
(and (eq_attr "insn_size" "short")
(eq_attr "type" "!load2")))
- 1 0
- [(eq_attr "insn_size" "long")])
+ "o_IF,o_E")
-(define_function_unit "short" 2 2 ;; load delay of 1 clock for mem execution + 1 clock for WB
- (and (eq_attr "m32r" "yes")
- (eq_attr "type" "load2"))
- 3 0
- [(eq_attr "insn_size" "long")])
+(define_insn_reservation "short_right" 1
+ (and (eq_attr "m32r_pipeline" "s")
+ (and (eq_attr "insn_size" "short")
+ (eq_attr "type" "!load2")))
+ "s_IF,s_E")
-(define_function_unit "long" 1 1
- (and (eq_attr "m32r" "yes")
+(define_insn_reservation "short_either" 1
+ (and (eq_attr "m32r_pipeline" "either")
+ (and (eq_attr "insn_size" "short")
+ (eq_attr "type" "!load2")))
+ "o_IF|s_IF,o_E|s_E")
+
+(define_insn_reservation "long_m32r" 1
+ (and (eq_attr "cpu" "m32r")
(and (eq_attr "insn_size" "long")
(eq_attr "type" "!load4,load8")))
- 1 0
- [(eq_attr "insn_size" "short")])
+ "long_IF,long_E")
-(define_function_unit "long" 1 1 ;; load delay of 1 clock for mem execution + 1 clock for WB
- (and (eq_attr "m32r" "yes")
- (and (eq_attr "insn_size" "long")
- (eq_attr "type" "load4,load8")))
- 3 0
- [(eq_attr "insn_size" "short")])
-
-(define_function_unit "left" 1 1
- (and (eq_attr "m32rx_pipeline" "o,either")
- (eq_attr "type" "!load2"))
- 1 0
- [(eq_attr "insn_size" "long")])
-
-(define_function_unit "left" 1 1 ;; load delay of 1 clock for mem execution + 1 clock for WB
- (and (eq_attr "m32rx_pipeline" "o,either")
- (eq_attr "type" "load2"))
- 3 0
- [(eq_attr "insn_size" "long")])
-
-(define_function_unit "right" 1 1
- (eq_attr "m32rx_pipeline" "s,either")
- 1 0
- [(eq_attr "insn_size" "long")])
-
-(define_function_unit "long" 1 1
- (and (eq_attr "m32rx" "yes")
+(define_insn_reservation "long_m32rx" 2
+ (and (eq_attr "m32r_pipeline" "long")
(and (eq_attr "insn_size" "long")
(eq_attr "type" "!load4,load8")))
- 2 0
- [(eq_attr "insn_size" "short")])
+ "long_IF,long_E")
-(define_function_unit "long" 1 1 ;; load delay of 1 clock for mem execution + 1 clock for WB
- (and (eq_attr "m32rx" "yes")
+;; Load/store instructions do 6 stages: IF D E MEM1 MEM2 WB.
+;; MEM1 may require more than one cycle depending on locality. We
+;; optimistically assume all memory is nearby, i.e. MEM1 takes only
+;; one cycle. Hence, ready latency is 3.
+
+;; The M32Rx can do short load/store only on the left pipe.
+(define_insn_reservation "short_load_left" 3
+ (and (eq_attr "m32r_pipeline" "o")
+ (and (eq_attr "insn_size" "short")
+ (eq_attr "type" "load2")))
+ "o_IF,o_E,memory*2")
+
+(define_insn_reservation "short_load" 3
+ (and (eq_attr "m32r_pipeline" "either")
+ (and (eq_attr "insn_size" "short")
+ (eq_attr "type" "load2")))
+ "s_IF|o_IF,s_E|o_E,memory*2")
+
+(define_insn_reservation "long_load" 3
+ (and (eq_attr "cpu" "m32r")
(and (eq_attr "insn_size" "long")
(eq_attr "type" "load4,load8")))
- 3 0
- [(eq_attr "insn_size" "short")])
+ "long_IF,long_E,memory*2")
+
+(define_insn_reservation "long_load_m32rx" 3
+ (and (eq_attr "m32r_pipeline" "long")
+ (eq_attr "type" "load4,load8"))
+ "long_IF,long_E,memory*2")
+
\f
;; Expand prologue as RTL
(define_expand "prologue"
""
"
{
+ /* Fixup PIC cases. */
+ if (flag_pic)
+ {
+ if (symbolic_operand (operands[1], QImode))
+ {
+ if (reload_in_progress || reload_completed)
+ operands[1] = m32r_legitimize_pic_address (operands[1], operands[0]);
+ else
+ operands[1] = m32r_legitimize_pic_address (operands[1], NULL_RTX);
+ }
+ }
+
/* Everything except mem = const or mem = mem can be done easily.
Objects in the small data area are handled too. */
""
"
{
+ /* Fixup PIC cases. */
+ if (flag_pic)
+ {
+ if (symbolic_operand (operands[1], HImode))
+ {
+ if (reload_in_progress || reload_completed)
+ operands[1] = m32r_legitimize_pic_address (operands[1], operands[0]);
+ else
+ operands[1] = m32r_legitimize_pic_address (operands[1], NULL_RTX);
+ }
+ }
+
/* Everything except mem = const or mem = mem can be done easily. */
if (GET_CODE (operands[0]) == MEM)
""
"
{
+ /* Fixup PIC cases. */
+ if (flag_pic)
+ {
+ if (symbolic_operand (operands[1], SImode))
+ {
+ if (reload_in_progress || reload_completed)
+ operands[1] = m32r_legitimize_pic_address (operands[1], operands[0]);
+ else
+ operands[1] = m32r_legitimize_pic_address (operands[1], NULL_RTX);
+ }
+ }
+
/* Everything except mem = const or mem = mem can be done easily. */
if (GET_CODE (operands[0]) == MEM)
(define_split
[(set (match_operand:SI 0 "register_operand" "")
- (match_operand:SI 1 "seth_add3_operand" "i"))]
+ (match_operand:SI 1 "seth_add3_operand" ""))]
"TARGET_ADDR32"
[(set (match_dup 0)
(high:SI (match_dup 1)))
(define_expand "movsi_sda"
[(set (match_dup 2)
- (unspec [(const_int 0)] 2))
+ (unspec:SI [(const_int 0)] UNSPEC_LOAD_SDA_BASE))
(set (match_operand:SI 0 "register_operand" "")
(lo_sum:SI (match_dup 2)
(match_operand:SI 1 "small_data_operand" "")))]
operands[2] = gen_reg_rtx (SImode);
}")
+(define_insn "*load_sda_base_32"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (unspec:SI [(const_int 0)] UNSPEC_LOAD_SDA_BASE))]
+ "TARGET_ADDR32"
+ "seth %0,%#shigh(_SDA_BASE_)\;add3 %0,%0,%#low(_SDA_BASE_)"
+ [(set_attr "type" "multi")
+ (set_attr "length" "8")])
+
(define_insn "*load_sda_base"
[(set (match_operand:SI 0 "register_operand" "=r")
- (unspec [(const_int 0)] 2))]
+ (unspec:SI [(const_int 0)] UNSPEC_LOAD_SDA_BASE))]
""
"ld24 %0,#_SDA_BASE_"
[(set_attr "type" "int4")
""
"
{
+ /* Fixup PIC cases. */
+ if (flag_pic)
+ {
+ if (symbolic_operand (operands[1], DImode))
+ {
+ if (reload_in_progress || reload_completed)
+ operands[1] = m32r_legitimize_pic_address (operands[1], operands[0]);
+ else
+ operands[1] = m32r_legitimize_pic_address (operands[1], NULL_RTX);
+ }
+ }
+
/* Everything except mem = const or mem = mem can be done easily. */
if (GET_CODE (operands[0]) == MEM)
""
"
{
+ /* Fixup PIC cases. */
+ if (flag_pic)
+ {
+ if (symbolic_operand (operands[1], SFmode))
+ {
+ if (reload_in_progress || reload_completed)
+ operands[1] = m32r_legitimize_pic_address (operands[1], operands[0]);
+ else
+ operands[1] = m32r_legitimize_pic_address (operands[1], NULL_RTX);
+ }
+ }
+
/* Everything except mem = const or mem = mem can be done easily. */
if (GET_CODE (operands[0]) == MEM)
""
"
{
+ /* Fixup PIC cases. */
+ if (flag_pic)
+ {
+ if (symbolic_operand (operands[1], DFmode))
+ {
+ if (reload_in_progress || reload_completed)
+ operands[1] = m32r_legitimize_pic_address (operands[1], operands[0]);
+ else
+ operands[1] = m32r_legitimize_pic_address (operands[1], NULL_RTX);
+ }
+ }
+
/* Everything except mem = const or mem = mem can be done easily. */
if (GET_CODE (operands[0]) == MEM)
"
{
rtx op0 = gen_lowpart (SImode, operands[0]);
- rtx shift = gen_rtx (CONST_INT, VOIDmode, 24);
+ rtx shift = GEN_INT (24);
operands[2] = gen_ashlsi3 (op0, op0, shift);
operands[3] = gen_ashrsi3 (op0, op0, shift);
(match_dup 3)]
"
{
- rtx op0 = gen_lowpart (SImode, operands[0]);
- rtx shift = gen_rtx (CONST_INT, VOIDmode, 24);
+ rtx shift = GEN_INT (24);
- operands[2] = gen_ashlsi3 (op0, op0, shift);
- operands[3] = gen_ashrsi3 (op0, op0, shift);
+ operands[2] = gen_ashlsi3 (operands[0], operands[0], shift);
+ operands[3] = gen_ashrsi3 (operands[0], operands[0], shift);
}")
(define_insn "extendhisi2"
(match_dup 3)]
"
{
- rtx op0 = gen_lowpart (SImode, operands[0]);
- rtx shift = gen_rtx (CONST_INT, VOIDmode, 16);
+ rtx shift = GEN_INT (16);
- operands[2] = gen_ashlsi3 (op0, op0, shift);
- operands[3] = gen_ashrsi3 (op0, op0, shift);
+ operands[2] = gen_ashlsi3 (operands[0], operands[0], shift);
+ operands[3] = gen_ashrsi3 (operands[0], operands[0], shift);
}")
\f
;; Arithmetic instructions.
[(set (match_operand:DI 0 "register_operand" "=r")
(plus:DI (match_operand:DI 1 "register_operand" "%0")
(match_operand:DI 2 "register_operand" "r")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
"#"
[(set_attr "type" "multi")
[(set (match_operand:DI 0 "register_operand" "")
(plus:DI (match_operand:DI 1 "register_operand" "")
(match_operand:DI 2 "register_operand" "")))
- (clobber (match_operand 3 "" ""))]
+ (clobber (reg:CC 17))]
"reload_completed"
- [(parallel [(set (match_dup 3)
+ [(parallel [(set (reg:CC 17)
(const_int 0))
(use (match_dup 4))])
(parallel [(set (match_dup 4)
(plus:SI (match_dup 4)
(plus:SI (match_dup 5)
- (match_dup 3))))
- (set (match_dup 3)
- (unspec [(const_int 0)] 3))])
+ (ne:SI (reg:CC 17) (const_int 0)))))
+ (set (reg:CC 17)
+ (unspec:CC [(const_int 0)] UNSPEC_SET_CBIT))])
(parallel [(set (match_dup 6)
(plus:SI (match_dup 6)
(plus:SI (match_dup 7)
- (match_dup 3))))
- (set (match_dup 3)
- (unspec [(const_int 0)] 3))])]
+ (ne:SI (reg:CC 17) (const_int 0)))))
+ (set (reg:CC 17)
+ (unspec:CC [(const_int 0)] UNSPEC_SET_CBIT))])]
"
{
operands[4] = operand_subword (operands[0], (WORDS_BIG_ENDIAN != 0), 0, DImode);
}")
(define_insn "*clear_c"
- [(set (reg:SI 17)
+ [(set (reg:CC 17)
(const_int 0))
(use (match_operand:SI 0 "register_operand" "r"))]
""
[(set (match_operand:SI 0 "register_operand" "=r")
(plus:SI (match_operand:SI 1 "register_operand" "%0")
(plus:SI (match_operand:SI 2 "register_operand" "r")
- (reg:SI 17))))
- (set (reg:SI 17)
- (unspec [(const_int 0)] 3))]
+ (ne:SI (reg:CC 17) (const_int 0)))))
+ (set (reg:CC 17)
+ (unspec:CC [(const_int 0)] UNSPEC_SET_CBIT))]
""
"addx %0,%2"
[(set_attr "type" "int2")
[(set (match_operand:DI 0 "register_operand" "=r")
(minus:DI (match_operand:DI 1 "register_operand" "0")
(match_operand:DI 2 "register_operand" "r")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
"#"
[(set_attr "type" "multi")
[(set (match_operand:DI 0 "register_operand" "")
(minus:DI (match_operand:DI 1 "register_operand" "")
(match_operand:DI 2 "register_operand" "")))
- (clobber (match_operand 3 "" ""))]
+ (clobber (reg:CC 17))]
"reload_completed"
- [(parallel [(set (match_dup 3)
+ [(parallel [(set (reg:CC 17)
(const_int 0))
(use (match_dup 4))])
(parallel [(set (match_dup 4)
(minus:SI (match_dup 4)
(minus:SI (match_dup 5)
- (match_dup 3))))
- (set (match_dup 3)
- (unspec [(const_int 0)] 3))])
+ (ne:SI (reg:CC 17) (const_int 0)))))
+ (set (reg:CC 17)
+ (unspec:CC [(const_int 0)] UNSPEC_SET_CBIT))])
(parallel [(set (match_dup 6)
(minus:SI (match_dup 6)
(minus:SI (match_dup 7)
- (match_dup 3))))
- (set (match_dup 3)
- (unspec [(const_int 0)] 3))])]
+ (ne:SI (reg:CC 17) (const_int 0)))))
+ (set (reg:CC 17)
+ (unspec:CC [(const_int 0)] UNSPEC_SET_CBIT))])]
"
{
operands[4] = operand_subword (operands[0], (WORDS_BIG_ENDIAN != 0), 0, DImode);
[(set (match_operand:SI 0 "register_operand" "=r")
(minus:SI (match_operand:SI 1 "register_operand" "%0")
(minus:SI (match_operand:SI 2 "register_operand" "r")
- (reg:SI 17))))
- (set (reg:SI 17)
- (unspec [(const_int 0)] 3))]
+ (ne:SI (reg:CC 17) (const_int 0)))))
+ (set (reg:CC 17)
+ (unspec:CC [(const_int 0)] UNSPEC_SET_CBIT))]
""
"subx %0,%2"
[(set_attr "type" "int2")
;; preferred.
(define_expand "cmpsi"
- [(set (reg:SI 17)
+ [(set (reg:CC 17)
(compare:CC (match_operand:SI 0 "register_operand" "")
(match_operand:SI 1 "reg_or_cmp_int16_operand" "")))]
""
}")
(define_insn "cmp_eqsi_zero_insn"
- [(set (reg:SI 17)
- (eq:SI (match_operand:SI 0 "register_operand" "r,r")
+ [(set (reg:CC 17)
+ (eq:CC (match_operand:SI 0 "register_operand" "r,r")
(match_operand:SI 1 "reg_or_zero_operand" "r,P")))]
- "TARGET_M32RX"
+ "TARGET_M32RX || TARGET_M32R2"
"@
cmpeq %0, %1
cmpz %0"
;; is quite inefficient. However, it is rarely used.
(define_insn "cmp_eqsi_insn"
- [(set (reg:SI 17)
- (eq:SI (match_operand:SI 0 "register_operand" "r,r")
+ [(set (reg:CC 17)
+ (eq:CC (match_operand:SI 0 "register_operand" "r,r")
(match_operand:SI 1 "reg_or_cmp_int16_operand" "r,P")))
(clobber (match_scratch:SI 2 "=&r,&r"))]
""
(set_attr "length" "8,8")])
(define_insn "cmp_ltsi_insn"
- [(set (reg:SI 17)
- (lt:SI (match_operand:SI 0 "register_operand" "r,r")
+ [(set (reg:CC 17)
+ (lt:CC (match_operand:SI 0 "register_operand" "r,r")
(match_operand:SI 1 "reg_or_int16_operand" "r,J")))]
""
"@
(set_attr "length" "2,4")])
(define_insn "cmp_ltusi_insn"
- [(set (reg:SI 17)
- (ltu:SI (match_operand:SI 0 "register_operand" "r,r")
+ [(set (reg:CC 17)
+ (ltu:CC (match_operand:SI 0 "register_operand" "r,r")
(match_operand:SI 1 "reg_or_int16_operand" "r,J")))]
""
"@
cmpui %0,%#%1"
[(set_attr "type" "int2,int4")
(set_attr "length" "2,4")])
-
-
-;; reg == small constant comparisons are best handled by putting the result
-;; of the comparison in a tmp reg and then using beqz/bnez.
-;; ??? The result register doesn't contain 0/STORE_FLAG_VALUE,
-;; it contains 0/nonzero.
-
-(define_insn "cmp_ne_small_const_insn"
- [(set (match_operand:SI 0 "register_operand" "=r,r")
- (ne:SI (match_operand:SI 1 "register_operand" "0,r")
- (match_operand:SI 2 "cmp_int16_operand" "N,P")))]
- ""
- "@
- addi %0,%#%N2
- add3 %0,%1,%#%N2"
- [(set_attr "type" "int2,int4")
- (set_attr "length" "2,4")])
\f
;; These control RTL generation for conditional jump insns.
if (! register_operand (op1, mode))
op1 = force_reg (mode, op1);
- if (TARGET_M32RX)
+ if (TARGET_M32RX || TARGET_M32R2)
{
if (! reg_or_zero_operand (op2, mode))
op2 = force_reg (mode, op2);
[(set (match_operand:SI 0 "register_operand" "=r")
(eq:SI (match_operand:SI 1 "register_operand" "%r")
(match_operand:SI 2 "reg_or_zero_operand" "rP")))
- (clobber (reg:SI 17))]
- "TARGET_M32RX"
+ (clobber (reg:CC 17))]
+ "TARGET_M32RX || TARGET_M32R2"
"#"
[(set_attr "type" "multi")
(set_attr "length" "6")])
[(set (match_operand:SI 0 "register_operand" "")
(eq:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "reg_or_zero_operand" "")))
- (clobber (reg:SI 17))]
- "TARGET_M32RX"
- [(set (reg:SI 17)
- (eq:SI (match_dup 1)
+ (clobber (reg:CC 17))]
+ "TARGET_M32RX || TARGET_M32R2"
+ [(set (reg:CC 17)
+ (eq:CC (match_dup 1)
(match_dup 2)))
(set (match_dup 0)
- (reg:SI 17))]
+ (ne:SI (reg:CC 17) (const_int 0)))]
"")
(define_insn "seq_zero_insn"
[(set (match_operand:SI 0 "register_operand" "=r")
(eq:SI (match_operand:SI 1 "register_operand" "r")
(const_int 0)))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"TARGET_M32R"
"#"
[(set_attr "type" "multi")
[(set (match_operand:SI 0 "register_operand" "")
(eq:SI (match_operand:SI 1 "register_operand" "")
(const_int 0)))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"TARGET_M32R"
[(match_dup 3)]
"
rtx op1 = operands[1];
start_sequence ();
- emit_insn (gen_cmp_ltusi_insn (op1, GEN_INT (1)));
+ emit_insn (gen_cmp_ltusi_insn (op1, const1_rtx));
emit_insn (gen_movcc_insn (op0));
operands[3] = get_insns ();
end_sequence ();
[(set (match_operand:SI 0 "register_operand" "=r,r,??r,r")
(eq:SI (match_operand:SI 1 "register_operand" "r,r,r,r")
(match_operand:SI 2 "reg_or_eq_int16_operand" "r,r,r,PK")))
- (clobber (reg:SI 17))
+ (clobber (reg:CC 17))
(clobber (match_scratch:SI 3 "=1,2,&r,r"))]
"TARGET_M32R"
"#"
[(set (match_operand:SI 0 "register_operand" "")
(eq:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "reg_or_eq_int16_operand" "")))
- (clobber (reg:SI 17))
+ (clobber (reg:CC 17))
(clobber (match_scratch:SI 3 ""))]
"TARGET_M32R && reload_completed"
[(match_dup 4)]
else
emit_insn (gen_xorsi3 (op3, op1, op2));
- emit_insn (gen_cmp_ltusi_insn (op3, GEN_INT (1)));
+ emit_insn (gen_cmp_ltusi_insn (op3, const1_rtx));
emit_insn (gen_movcc_insn (op0));
operands[4] = get_insns ();
end_sequence ();
[(set (match_operand:SI 0 "register_operand" "=r")
(ne:SI (match_operand:SI 1 "register_operand" "r")
(const_int 0)))
- (clobber (reg:SI 17))
+ (clobber (reg:CC 17))
(clobber (match_scratch:SI 2 "=&r"))]
""
"#"
[(set (match_operand:SI 0 "register_operand" "")
(ne:SI (match_operand:SI 1 "register_operand" "")
(const_int 0)))
- (clobber (reg:SI 17))
+ (clobber (reg:CC 17))
(clobber (match_scratch:SI 2 ""))]
"reload_completed"
[(set (match_dup 2)
(const_int 0))
- (set (reg:SI 17)
- (ltu:SI (match_dup 2)
+ (set (reg:CC 17)
+ (ltu:CC (match_dup 2)
(match_dup 1)))
(set (match_dup 0)
- (reg:SI 17))]
+ (ne:SI (reg:CC 17) (const_int 0)))]
"")
(define_expand "slt"
[(set (match_operand:SI 0 "register_operand" "=r,r")
(lt:SI (match_operand:SI 1 "register_operand" "r,r")
(match_operand:SI 2 "reg_or_int16_operand" "r,J")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
"#"
[(set_attr "type" "multi")
[(set (match_operand:SI 0 "register_operand" "")
(lt:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "reg_or_int16_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
- [(set (reg:SI 17)
- (lt:SI (match_dup 1)
+ [(set (reg:CC 17)
+ (lt:CC (match_dup 1)
(match_dup 2)))
(set (match_dup 0)
- (reg:SI 17))]
+ (ne:SI (reg:CC 17) (const_int 0)))]
"")
(define_expand "sle"
HOST_WIDE_INT value = INTVAL (op2);
if (value >= 2147483647)
{
- emit_move_insn (op0, GEN_INT (1));
+ emit_move_insn (op0, const1_rtx);
DONE;
}
[(set (match_operand:SI 0 "register_operand" "=r")
(le:SI (match_operand:SI 1 "register_operand" "r")
(match_operand:SI 2 "register_operand" "r")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
"#"
[(set_attr "type" "multi")
[(set (match_operand:SI 0 "register_operand" "")
(le:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "register_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"!optimize_size"
- [(set (reg:SI 17)
- (lt:SI (match_dup 2)
+ [(set (reg:CC 17)
+ (lt:CC (match_dup 2)
(match_dup 1)))
(set (match_dup 0)
- (reg:SI 17))
+ (ne:SI (reg:CC 17) (const_int 0)))
(set (match_dup 0)
(xor:SI (match_dup 0)
(const_int 1)))]
[(set (match_operand:SI 0 "register_operand" "")
(le:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "register_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"optimize_size"
- [(set (reg:SI 17)
- (lt:SI (match_dup 2)
+ [(set (reg:CC 17)
+ (lt:CC (match_dup 2)
(match_dup 1)))
(set (match_dup 0)
- (reg:SI 17))
+ (ne:SI (reg:CC 17) (const_int 0)))
(set (match_dup 0)
(plus:SI (match_dup 0)
(const_int -1)))
[(set (match_operand:SI 0 "register_operand" "=r,r")
(ge:SI (match_operand:SI 1 "register_operand" "r,r")
(match_operand:SI 2 "reg_or_int16_operand" "r,J")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
"#"
[(set_attr "type" "multi")
[(set (match_operand:SI 0 "register_operand" "")
(ge:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "reg_or_int16_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"!optimize_size"
- [(set (reg:SI 17)
- (lt:SI (match_dup 1)
+ [(set (reg:CC 17)
+ (lt:CC (match_dup 1)
(match_dup 2)))
(set (match_dup 0)
- (reg:SI 17))
+ (ne:SI (reg:CC 17) (const_int 0)))
(set (match_dup 0)
(xor:SI (match_dup 0)
(const_int 1)))]
[(set (match_operand:SI 0 "register_operand" "")
(ge:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "reg_or_int16_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"optimize_size"
- [(set (reg:SI 17)
- (lt:SI (match_dup 1)
+ [(set (reg:CC 17)
+ (lt:CC (match_dup 1)
(match_dup 2)))
(set (match_dup 0)
- (reg:SI 17))
+ (ne:SI (reg:CC 17) (const_int 0)))
(set (match_dup 0)
(plus:SI (match_dup 0)
(const_int -1)))
[(set (match_operand:SI 0 "register_operand" "=r,r")
(ltu:SI (match_operand:SI 1 "register_operand" "r,r")
(match_operand:SI 2 "reg_or_int16_operand" "r,J")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
"#"
[(set_attr "type" "multi")
[(set (match_operand:SI 0 "register_operand" "")
(ltu:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "reg_or_int16_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
- [(set (reg:SI 17)
- (ltu:SI (match_dup 1)
+ [(set (reg:CC 17)
+ (ltu:CC (match_dup 1)
(match_dup 2)))
(set (match_dup 0)
- (reg:SI 17))]
+ (ne:SI (reg:CC 17) (const_int 0)))]
"")
(define_expand "sleu"
HOST_WIDE_INT value = INTVAL (op2);
if (value >= 2147483647)
{
- emit_move_insn (op0, GEN_INT (1));
+ emit_move_insn (op0, const1_rtx);
DONE;
}
[(set (match_operand:SI 0 "register_operand" "=r")
(leu:SI (match_operand:SI 1 "register_operand" "r")
(match_operand:SI 2 "register_operand" "r")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
"#"
[(set_attr "type" "multi")
[(set (match_operand:SI 0 "register_operand" "")
(leu:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "register_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"!optimize_size"
- [(set (reg:SI 17)
- (ltu:SI (match_dup 2)
+ [(set (reg:CC 17)
+ (ltu:CC (match_dup 2)
(match_dup 1)))
(set (match_dup 0)
- (reg:SI 17))
+ (ne:SI (reg:CC 17) (const_int 0)))
(set (match_dup 0)
(xor:SI (match_dup 0)
(const_int 1)))]
[(set (match_operand:SI 0 "register_operand" "")
(leu:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "register_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"optimize_size"
- [(set (reg:SI 17)
- (ltu:SI (match_dup 2)
+ [(set (reg:CC 17)
+ (ltu:CC (match_dup 2)
(match_dup 1)))
(set (match_dup 0)
- (reg:SI 17))
+ (ne:SI (reg:CC 17) (const_int 0)))
(set (match_dup 0)
(plus:SI (match_dup 0)
(const_int -1)))
[(set (match_operand:SI 0 "register_operand" "=r,r")
(geu:SI (match_operand:SI 1 "register_operand" "r,r")
(match_operand:SI 2 "reg_or_int16_operand" "r,J")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
""
"#"
[(set_attr "type" "multi")
[(set (match_operand:SI 0 "register_operand" "")
(geu:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "reg_or_int16_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"!optimize_size"
- [(set (reg:SI 17)
- (ltu:SI (match_dup 1)
+ [(set (reg:CC 17)
+ (ltu:CC (match_dup 1)
(match_dup 2)))
(set (match_dup 0)
- (reg:SI 17))
+ (ne:SI (reg:CC 17) (const_int 0)))
(set (match_dup 0)
(xor:SI (match_dup 0)
(const_int 1)))]
[(set (match_operand:SI 0 "register_operand" "")
(geu:SI (match_operand:SI 1 "register_operand" "")
(match_operand:SI 2 "reg_or_int16_operand" "")))
- (clobber (reg:SI 17))]
+ (clobber (reg:CC 17))]
"optimize_size"
- [(set (reg:SI 17)
- (ltu:SI (match_dup 1)
+ [(set (reg:CC 17)
+ (ltu:CC (match_dup 1)
(match_dup 2)))
(set (match_dup 0)
- (reg:SI 17))
+ (ne:SI (reg:CC 17) (const_int 0)))
(set (match_dup 0)
(plus:SI (match_dup 0)
(const_int -1)))
(define_insn "movcc_insn"
[(set (match_operand:SI 0 "register_operand" "=r")
- (reg:SI 17))]
+ (ne:SI (reg:CC 17) (const_int 0)))]
""
"mvfc %0, cbr"
[(set_attr "type" "misc")
[(set_attr "type" "uncond_branch")
(set_attr "length" "2")])
-(define_insn "tablejump"
+(define_expand "tablejump"
+ [(parallel [(set (pc) (match_operand 0 "register_operand" "r"))
+ (use (label_ref (match_operand 1 "" "")))])]
+ ""
+ "
+{
+ /* In pic mode, our address differences are against the base of the
+ table. Add that base value back in; CSE ought to be able to combine
+ the two address loads. */
+ if (flag_pic)
+ {
+ rtx tmp, tmp2;
+
+ tmp = gen_rtx_LABEL_REF (Pmode, operands[1]);
+ tmp2 = operands[0];
+ tmp = gen_rtx_PLUS (Pmode, tmp2, tmp);
+ operands[0] = memory_address (Pmode, tmp);
+ }
+}")
+
+(define_insn "*tablejump_insn"
[(set (pc) (match_operand:SI 0 "address_operand" "p"))
(use (label_ref (match_operand 1 "" "")))]
""
(match_operand 1 "" ""))
(clobber (reg:SI 14))])]
""
- "")
+ "
+{
+ if (flag_pic)
+ current_function_uses_pic_offset_table = 1;
+}")
(define_insn "*call_via_reg"
[(call (mem:SI (match_operand:SI 0 "register_operand" "r"))
(match_operand 2 "" "")))
(clobber (reg:SI 14))])]
""
- "")
+ "
+{
+ if (flag_pic)
+ current_function_uses_pic_offset_table = 1;
+}")
(define_insn "*call_value_via_reg"
[(set (match_operand 0 "register_operand" "=r")
{
int call26_p = call26_operand (operands[1], FUNCTION_MODE);
+ if (flag_pic)
+ current_function_uses_pic_offset_table = 1;
+
if (! call26_p)
{
/* We may not be able to reach with a `bl' insn so punt and leave it to
;; all of memory. This blocks insns from being moved across this point.
(define_insn "blockage"
- [(unspec_volatile [(const_int 0)] 0)]
+ [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)]
""
"")
;; Special pattern to flush the icache.
(define_insn "flush_icache"
- [(unspec_volatile [(match_operand 0 "memory_operand" "m")] 0)]
+ [(unspec_volatile [(match_operand 0 "memory_operand" "m")]
+ UNSPECV_FLUSH_ICACHE)
+ (match_operand 1 "" "")
+ (clobber (reg:SI 17))]
""
- "* return \"nop ; flush-icache\";"
- [(set_attr "type" "int2")
- (set_attr "length" "2")])
+ "* return \"trap %#%1 ; flush-icache\";"
+ [(set_attr "type" "int4")
+ (set_attr "length" "4")])
\f
;; Speed up fabs and provide correct sign handling for -0
if (! zero_and_one (operands [2], operands [3]))
FAIL;
- /* Generate the comparision that will set the carry flag. */
+ /* Generate the comparison that will set the carry flag. */
operands[1] = gen_compare (GET_CODE (operands[1]), m32r_compare_op0,
m32r_compare_op1, TRUE);
)
\f
-;; Split up troublesome insns for better scheduling.
-;; FIXME: Peepholes go at the end.
-
-;; ??? Setting the type attribute may not be useful, but for completeness
-;; we do it.
-
-(define_peephole
- [(set (mem:SI (plus:SI (match_operand:SI 0 "register_operand" "r")
- (const_int 4)))
- (match_operand:SI 1 "register_operand" "r"))]
- "0 && dead_or_set_p (insn, operands[0])"
- "st %1,@+%0"
- [(set_attr "type" "store2")
- (set_attr "length" "2")])
-
-;; This case is triggered by compiling this code:
-;;
-;; extern void sub(int *);
-;; void main (void)
-;; {
-;; int i=2,j=3,k;
-;; while (i < j) sub(&k);
-;; i = j / k;
-;; sub(&i);
-;; i = j - k;
-;; sub(&i);
-;; }
-;;
-;; Without the peephole the following assembler is generated for the
-;; divide and subtract expressions:
-;;
-;; div r5,r4
-;; mv r4,r5
-;; st r4,@(4,sp)
-;; bl sub
-;;
-;; Simialr code is produced for the subtract expression. With this
-;; peephole the redundant move is eliminated.
-;;
-;; This optimisation only works if PRESERVE_DEATH_INFO_REGNO_P is
-;; defined in m32r.h
-
-(define_peephole
- [(set (match_operand:SI 0 "register_operand" "r")
- (match_operand:SI 1 "register_operand" "r")
- )
- (set (mem:SI (plus: SI (match_operand:SI 2 "register_operand" "r")
- (match_operand:SI 3 "immediate_operand" "J")))
- (match_dup 0)
- )
- ]
- "0 && dead_or_set_p (insn, operands [0])"
- "st %1,@(%3,%2)"
- [(set_attr "type" "store4")
- (set_attr "length" "4")
- ]
-)
-
;; Block moves, see m32r.c for more details.
;; Argument 0 is the destination
;; Argument 1 is the source
;; Argument 2 is the length
;; Argument 3 is the alignment
-(define_expand "movstrsi"
+(define_expand "movmemsi"
[(parallel [(set (match_operand:BLK 0 "general_operand" "")
(match_operand:BLK 1 "general_operand" ""))
(use (match_operand:SI 2 "immediate_operand" ""))
;; Insn generated by block moves
-(define_insn "movstrsi_internal"
- [(set (mem:BLK (match_operand:SI 0 "register_operand" "+r")) ;; destination
- (mem:BLK (match_operand:SI 1 "register_operand" "+r"))) ;; source
+(define_insn "movmemsi_internal"
+ [(set (mem:BLK (match_operand:SI 0 "register_operand" "r")) ;; destination
+ (mem:BLK (match_operand:SI 1 "register_operand" "r"))) ;; source
(use (match_operand:SI 2 "m32r_block_immediate_operand" "J"));; # bytes to move
- (set (match_dup 0) (plus:SI (match_dup 0) (minus:SI (match_dup 2) (const_int 4))))
- (set (match_dup 1) (plus:SI (match_dup 1) (match_dup 2)))
- (clobber (match_scratch:SI 3 "=&r")) ;; temp 1
- (clobber (match_scratch:SI 4 "=&r"))] ;; temp 2
+ (set (match_operand:SI 3 "register_operand" "=0")
+ (plus:SI (match_dup 0)
+ (minus (match_dup 2) (const_int 4))))
+ (set (match_operand:SI 4 "register_operand" "=1")
+ (plus:SI (match_dup 1)
+ (match_dup 2)))
+ (clobber (match_scratch:SI 5 "=&r")) ;; temp1
+ (clobber (match_scratch:SI 6 "=&r"))] ;; temp2
""
"* m32r_output_block_move (insn, operands); return \"\"; "
[(set_attr "type" "store8")
(set_attr "length" "72")]) ;; Maximum
+
+;; PIC
+
+/* When generating pic, we need to load the symbol offset into a register.
+ So that the optimizer does not confuse this with a normal symbol load
+ we use an unspec. The offset will be loaded from a constant pool entry,
+ since that is the only type of relocation we can use. */
+
+(define_insn "pic_load_addr"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (unspec:SI [(match_operand 1 "" "")] UNSPEC_PIC_LOAD_ADDR))]
+ "flag_pic"
+ "ld24 %0,%#%1"
+ [(set_attr "type" "int4")])
+
+(define_insn "gotoff_load_addr"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (unspec:SI [(match_operand 1 "" "")] UNSPEC_GOTOFF))]
+ "flag_pic"
+ "seth %0, %#shigh(%1@GOTOFF)\;add3 %0, %0, low(%1@GOTOFF)"
+ [(set_attr "type" "int4")
+ (set_attr "length" "8")])
+
+;; Load program counter insns.
+
+(define_insn "get_pc"
+ [(clobber (reg:SI 14))
+ (set (match_operand 0 "register_operand" "=r")
+ (unspec [(match_operand 1 "" "")] UNSPEC_GET_PC))
+ (use (match_operand:SI 2 "immediate_operand" ""))]
+ "flag_pic"
+ "*
+{
+ if (INTVAL(operands[2]))
+ return \"bl.s .+4\;ld24 %0,%#%1\;add %0,lr\";
+ else
+ return \"bl.s .+4\;seth %0,%#shigh(%1)\;add3 %0,%0,%#low(%1+4)\;add %0,lr\";}"
+ [(set (attr "length") (if_then_else (ne (match_dup 2) (const_int 0))
+ (const_int 8)
+ (const_int 12)))])
+
+(define_expand "builtin_setjmp_receiver"
+ [(label_ref (match_operand 0 "" ""))]
+ "flag_pic"
+ "
+{
+ m32r_load_pic_register ();
+ DONE;
+}")
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