4.4BSD/usr/src/contrib/gcc-2.3.3/config/tahoe.md
;;- Machine description for GNU compiler
;;- Tahoe version
;; Copyright (C) 1989 Free Software Foundation, Inc.
;; This file is part of GNU CC.
;; 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.
;; 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.
;; You should have received a copy of the GNU General Public License
;; along with GNU CC; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
; File: tahoe.md
;
; Original port made at the University of Buffalo by Devon Bowen,
; Dale Wiles and Kevin Zachmann.
;
; Piet van Oostrum (piet@cs.ruu.nl) made changes for HCX/UX, fixed
; some bugs and made some improvements (hopefully).
;
; Mail bugs reports or fixes to: gcc@cs.buffalo.edu
; movdi must call the output_move_double routine to move it around since
; the tahoe doesn't efficiently support 8 bit moves.
(define_insn "movdi"
[(set (match_operand:DI 0 "general_operand" "=g")
(match_operand:DI 1 "general_operand" "g"))]
""
"*
{
CC_STATUS_INIT;
return output_move_double (operands);
}")
; the trick in the movsi is accessing the contents of the sp register. The
; tahoe doesn't allow you to access it directly so you have to access the
; address of the top of the stack instead.
(define_insn "movsi"
[(set (match_operand:SI 0 "general_operand" "=g")
(match_operand:SI 1 "general_operand" "g"))]
""
"*
{
rtx link;
if (operands[1] == const1_rtx
&& (link = find_reg_note (insn, REG_WAS_0, 0))
&& ! XEXP (link, 0)->volatil
&& GET_CODE (XEXP (link, 0)) != NOTE
&& no_labels_between_p (XEXP (link, 0), insn))
return \"incl %0\";
if (GET_CODE (operands[1]) == SYMBOL_REF || GET_CODE (operands[1]) == CONST)
{
if (push_operand (operands[0], SImode))
return \"pushab %a1\";
return \"movab %a1,%0\";
}
if (operands[1] == const0_rtx)
return \"clrl %0\";
if (push_operand (operands[0], SImode))
return \"pushl %1\";
if (GET_CODE(operands[1]) == REG && REGNO(operands[1]) == 14)
return \"moval (sp),%0\";
return \"movl %1,%0\";
}")
(define_insn "movhi"
[(set (match_operand:HI 0 "general_operand" "=g")
(match_operand:HI 1 "general_operand" "g"))]
""
"*
{
rtx link;
if (operands[1] == const1_rtx
&& (link = find_reg_note (insn, REG_WAS_0, 0))
&& ! XEXP (link, 0)->volatil
&& GET_CODE (XEXP (link, 0)) != NOTE
&& no_labels_between_p (XEXP (link, 0), insn))
return \"incw %0\";
if (operands[1] == const0_rtx)
return \"clrw %0\";
return \"movw %1,%0\";
}")
(define_insn "movqi"
[(set (match_operand:QI 0 "general_operand" "=g")
(match_operand:QI 1 "general_operand" "g"))]
""
"*
{
if (operands[1] == const0_rtx)
return \"clrb %0\";
return \"movb %1,%0\";
}")
; movsf has three cases since they can move from one place to another
; or to/from the fpp and since different instructions are needed for
; each case. The fpp related instructions don't set the flags properly.
(define_insn "movsf"
[(set (match_operand:SF 0 "general_operand" "=g,=a,=g")
(match_operand:SF 1 "general_operand" "g,g,a"))]
""
"*
{
CC_STATUS_INIT;
switch (which_alternative)
{
case 0: return \"movl %1,%0\";
case 1: return \"ldf %1\";
case 2: return \"stf %0\";
}
}")
; movdf has a number of different cases. If it's going to or from
; the fpp, use the special instructions to do it. If not, use the
; output_move_double function.
(define_insn "movdf"
[(set (match_operand:DF 0 "general_operand" "=a,=g,?=g")
(match_operand:DF 1 "general_operand" "g,a,g"))]
""
"*
{
CC_STATUS_INIT;
switch (which_alternative)
{
case 0:
return \"ldd %1\";
case 1:
if (push_operand (operands[0], DFmode))
return \"pushd\";
else
return \"std %0\";
case 2:
return output_move_double (operands);
}
}")
;========================================================================
; The tahoe has the following semantics for byte (and similar for word)
; operands: if the operand is a register or immediate, it takes the full 32
; bit operand, if the operand is memory, it sign-extends the byte. The
; operation is performed on the 32 bit values. If the destination is a
; register, the full 32 bit result is stored, if the destination is memory,
; of course only the low part is stored. The condition code is based on the
; 32 bit operation. Only on the movz instructions the byte from memory is
; zero-extended rather than sign-extended.
; This means that for arithmetic instructions we can use addb etc. to
; perform a long add from a signed byte from memory to a register. Of
; course this would also work for logical operations, but that doesn't seem
; very useful.
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(plus:SI (sign_extend:SI (match_operand:QI 1 "memory_operand" "m"))
(sign_extend:SI (match_operand:QI 2 "memory_operand" "m"))))]
""
"addb3 %1,%2,%0")
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(plus:SI (match_operand:SI 1 "nonmemory_operand" "%ri")
(sign_extend:SI (match_operand:QI 2 "memory_operand" "m"))))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"addb2 %2,%0\";
return \"addb3 %1,%2,%0\";
}")
; We can also consider the result to be a half integer
(define_insn ""
[(set (match_operand:HI 0 "register_operand" "=r")
(plus:HI (sign_extend:HI (match_operand:QI 1 "memory_operand" "m"))
(sign_extend:HI (match_operand:QI 2 "memory_operand" "m"))))]
""
"addb3 %1,%2,%0")
(define_insn ""
[(set (match_operand:HI 0 "register_operand" "=r")
(plus:HI (match_operand:HI 1 "nonmemory_operand" "%ri")
(sign_extend:HI (match_operand:QI 2 "memory_operand" "m"))))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"addb2 %2,%0\";
return \"addb3 %1,%2,%0\";
}")
; The same applies to words (HI)
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(plus:SI (sign_extend:SI (match_operand:HI 1 "memory_operand" "m"))
(sign_extend:SI (match_operand:HI 2 "memory_operand" "m"))))]
""
"addw3 %1,%2,%0")
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(plus:SI (match_operand:SI 1 "nonmemory_operand" "%ri")
(sign_extend:SI (match_operand:HI 2 "memory_operand" "m"))))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"addw2 %2,%0\";
return \"addw3 %1,%2,%0\";
}")
; ======================= Now for subtract ==============================
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(minus:SI (sign_extend:SI (match_operand:QI 1 "memory_operand" "m"))
(sign_extend:SI (match_operand:QI 2 "memory_operand" "m"))))]
""
"subb3 %2,%1,%0")
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(minus:SI (match_operand:SI 1 "nonmemory_operand" "ri")
(sign_extend:SI (match_operand:QI 2 "memory_operand" "m"))))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"subb2 %2,%0\";
return \"subb3 %2,%1,%0\";
}")
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(minus:SI (sign_extend:SI (match_operand:QI 1 "memory_operand" "m"))
(match_operand:SI 2 "nonmemory_operand" "ri")))]
""
"subb3 %2,%1,%0")
; We can also consider the result to be a half integer
(define_insn ""
[(set (match_operand:HI 0 "register_operand" "=r")
(minus:HI (sign_extend:HI (match_operand:QI 1 "memory_operand" "m"))
(sign_extend:HI (match_operand:QI 2 "memory_operand" "m"))))]
""
"subb3 %2,%1,%0")
(define_insn ""
[(set (match_operand:HI 0 "register_operand" "=r")
(minus:HI (match_operand:HI 1 "nonmemory_operand" "%ri")
(sign_extend:HI (match_operand:QI 2 "memory_operand" "m"))))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"subb2 %2,%0\";
return \"subb3 %2,%1,%0\";
}")
(define_insn ""
[(set (match_operand:HI 0 "register_operand" "=r")
(minus:HI (sign_extend:HI (match_operand:QI 1 "memory_operand" "m"))
(match_operand:HI 2 "nonmemory_operand" "ri")))]
""
"subb3 %2,%1,%0")
; The same applies to words (HI)
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(minus:SI (sign_extend:SI (match_operand:HI 1 "memory_operand" "m"))
(sign_extend:SI (match_operand:HI 2 "memory_operand" "m"))))]
""
"subw3 %2,%1,%0")
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(minus:SI (match_operand:SI 1 "nonmemory_operand" "ri")
(sign_extend:SI (match_operand:HI 2 "memory_operand" "m"))))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"subw2 %2,%0\";
return \"subw3 %2,%1,%0\";
}")
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(minus:SI (sign_extend:SI (match_operand:HI 1 "memory_operand" "m"))
(match_operand:SI 2 "nonmemory_operand" "ri")))]
""
"subw3 %2,%1,%0")
; ======================= Now for neg ==============================
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(neg:SI (sign_extend:SI (match_operand:QI 1 "memory_operand" "m"))))]
""
"mnegb %1,%0")
(define_insn ""
[(set (match_operand:HI 0 "register_operand" "=r")
(neg:HI (sign_extend:HI (match_operand:QI 1 "memory_operand" "m"))))]
""
"mnegb %1,%0")
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=r")
(neg:SI (sign_extend:SI (match_operand:HI 1 "memory_operand" "m"))))]
""
"mnegw %1,%0")
;========================================================================
(define_insn "addsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(plus:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:SI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
{
if (operands[2] == const1_rtx)
return \"incl %0\";
if (GET_CODE (operands[2]) == CONST_INT
&& INTVAL (operands[2]) == -1)
return \"decl %0\";
if (GET_CODE (operands[2]) == CONST_INT
&& (unsigned) (- INTVAL (operands[2])) < 64)
return \"subl2 $%n2,%0\";
return \"addl2 %2,%0\";
}
if (rtx_equal_p (operands[0], operands[2]))
return \"addl2 %1,%0\";
if (GET_CODE (operands[2]) == CONST_INT
&& GET_CODE (operands[1]) == REG)
{
if (push_operand (operands[0], SImode))
return \"pushab %c2(%1)\";
return \"movab %c2(%1),%0\";
}
if (GET_CODE (operands[2]) == CONST_INT
&& (unsigned) (- INTVAL (operands[2])) < 64)
return \"subl3 $%n2,%1,%0\";
return \"addl3 %1,%2,%0\";
}")
(define_insn "addhi3"
[(set (match_operand:HI 0 "general_operand" "=g")
(plus:HI (match_operand:HI 1 "general_operand" "g")
(match_operand:HI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
{
if (operands[2] == const1_rtx)
return \"incw %0\";
if (GET_CODE (operands[2]) == CONST_INT
&& INTVAL (operands[2]) == -1)
return \"decw %0\";
if (GET_CODE (operands[2]) == CONST_INT
&& (unsigned) (- INTVAL (operands[2])) < 64)
return \"subw2 $%n2,%0\";
return \"addw2 %2,%0\";
}
if (rtx_equal_p (operands[0], operands[2]))
return \"addw2 %1,%0\";
if (GET_CODE (operands[2]) == CONST_INT
&& (unsigned) (- INTVAL (operands[2])) < 64)
return \"subw3 $%n2,%1,%0\";
return \"addw3 %1,%2,%0\";
}")
(define_insn "addqi3"
[(set (match_operand:QI 0 "general_operand" "=g")
(plus:QI (match_operand:QI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
{
if (operands[2] == const1_rtx)
return \"incb %0\";
if (GET_CODE (operands[2]) == CONST_INT
&& INTVAL (operands[2]) == -1)
return \"decb %0\";
if (GET_CODE (operands[2]) == CONST_INT
&& (unsigned) (- INTVAL (operands[2])) < 64)
return \"subb2 $%n2,%0\";
return \"addb2 %2,%0\";
}
if (rtx_equal_p (operands[0], operands[2]))
return \"addb2 %1,%0\";
if (GET_CODE (operands[2]) == CONST_INT
&& (unsigned) (- INTVAL (operands[2])) < 64)
return \"subb3 $%n2,%1,%0\";
return \"addb3 %1,%2,%0\";
}")
; addsf3 can only add into the fpp register since the fpp is treated
; as a separate unit in the machine. It also doesn't set the flags at
; all.
(define_insn "addsf3"
[(set (match_operand:SF 0 "register_operand" "=a")
(plus:SF (match_operand:SF 1 "register_operand" "%0")
(match_operand:SF 2 "general_operand" "g")))]
""
"*
{
CC_STATUS_INIT;
return \"addf %2\";
}")
; adddf3 can only add into the fpp reg since the fpp is treated as a
; separate entity. Doubles can only be read from a register or memory
; since a double is not an immediate mode. Flags are not set by this
; instruction.
(define_insn "adddf3"
[(set (match_operand:DF 0 "register_operand" "=a")
(plus:DF (match_operand:DF 1 "register_operand" "%0")
(match_operand:DF 2 "general_operand" "rm")))]
""
"*
{
CC_STATUS_INIT;
return \"addd %2\";
}")
; Subtraction from the sp (needed by the built in alloc function) needs
; to be different since the sp cannot be directly read on the tahoe.
; If it's a simple constant, you just use displacement. Otherwise, you
; push the sp, and then do the subtraction off the stack.
(define_insn "subsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(minus:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:SI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
{
if (operands[2] == const1_rtx)
return \"decl %0\";
if (GET_CODE(operands[0]) == REG && REGNO(operands[0]) == 14)
{
if (GET_CODE(operands[2]) == CONST_INT)
return \"movab %n2(sp),sp\";
else
return \"pushab (sp)\;subl3 %2,(sp),sp\";
}
return \"subl2 %2,%0\";
}
if (rtx_equal_p (operands[1], operands[2]))
return \"clrl %0\";
return \"subl3 %2,%1,%0\";
}")
(define_insn "subhi3"
[(set (match_operand:HI 0 "general_operand" "=g")
(minus:HI (match_operand:HI 1 "general_operand" "g")
(match_operand:HI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
{
if (operands[2] == const1_rtx)
return \"decw %0\";
return \"subw2 %2,%0\";
}
if (rtx_equal_p (operands[1], operands[2]))
return \"clrw %0\";
return \"subw3 %2,%1,%0\";
}")
(define_insn "subqi3"
[(set (match_operand:QI 0 "general_operand" "=g")
(minus:QI (match_operand:QI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
{
if (operands[2] == const1_rtx)
return \"decb %0\";
return \"subb2 %2,%0\";
}
if (rtx_equal_p (operands[1], operands[2]))
return \"clrb %0\";
return \"subb3 %2,%1,%0\";
}")
; subsf3 can only subtract into the fpp accumulator due to the way
; the fpp reg is limited by the instruction set. This also doesn't
; bother setting up flags.
(define_insn "subsf3"
[(set (match_operand:SF 0 "register_operand" "=a")
(minus:SF (match_operand:SF 1 "register_operand" "0")
(match_operand:SF 2 "general_operand" "g")))]
""
"*
{
CC_STATUS_INIT;
return \"subf %2\";
}")
; subdf3 is set up to subtract into the fpp reg due to limitations
; of the fpp instruction set. Doubles can not be immediate. This
; instruction does not set the flags.
(define_insn "subdf3"
[(set (match_operand:DF 0 "register_operand" "=a")
(minus:DF (match_operand:DF 1 "register_operand" "0")
(match_operand:DF 2 "general_operand" "rm")))]
""
"*
{
CC_STATUS_INIT;
return \"subd %2\";
}")
(define_insn "mulsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(mult:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:SI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"mull2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"mull2 %1,%0\";
return \"mull3 %1,%2,%0\";
}")
; mulsf3 can only multiply into the fpp accumulator due to limitations
; of the fpp. It also does not set the condition codes properly.
(define_insn "mulsf3"
[(set (match_operand:SF 0 "register_operand" "=a")
(mult:SF (match_operand:SF 1 "register_operand" "%0")
(match_operand:SF 2 "general_operand" "g")))]
""
"*
{
CC_STATUS_INIT;
return \"mulf %2\";
}")
; muldf3 can only multiply into the fpp reg since the fpp is limited
; from the rest. Doubles may not be immediate mode. This does not set
; the flags like gcc would expect.
(define_insn "muldf3"
[(set (match_operand:DF 0 "register_operand" "=a")
(mult:DF (match_operand:DF 1 "register_operand" "%0")
(match_operand:DF 2 "general_operand" "rm")))]
""
"*
{
CC_STATUS_INIT;
return \"muld %2\";
}")
(define_insn "divsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(div:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:SI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[1], operands[2]))
return \"movl $1,%0\";
if (operands[1] == const0_rtx)
return \"clrl %0\";
if (GET_CODE (operands[2]) == CONST_INT
&& INTVAL (operands[2]) == -1)
return \"mnegl %1,%0\";
if (rtx_equal_p (operands[0], operands[1]))
return \"divl2 %2,%0\";
return \"divl3 %2,%1,%0\";
}")
; divsf3 must divide into the fpp accumulator. Flags are not set by
; this instruction, so they are cleared.
(define_insn "divsf3"
[(set (match_operand:SF 0 "register_operand" "=a")
(div:SF (match_operand:SF 1 "register_operand" "0")
(match_operand:SF 2 "general_operand" "g")))]
""
"*
{
CC_STATUS_INIT;
return \"divf %2\";
}")
; divdf3 also must divide into the fpp reg so optimization isn't
; possible. Note that doubles cannot be immediate. The flags here
; are not set correctly so they must be ignored.
(define_insn "divdf3"
[(set (match_operand:DF 0 "register_operand" "=a")
(div:DF (match_operand:DF 1 "register_operand" "0")
(match_operand:DF 2 "general_operand" "rm")))]
""
"*
{
CC_STATUS_INIT;
return \"divd %2\";
}")
(define_insn "andsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(and:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:SI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"andl2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"andl2 %1,%0\";
return \"andl3 %2,%1,%0\";
}")
(define_insn "andhi3"
[(set (match_operand:HI 0 "general_operand" "=g")
(and:HI (match_operand:HI 1 "general_operand" "g")
(match_operand:HI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"andw2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"andw2 %1,%0\";
return \"andw3 %2,%1,%0\";
}")
(define_insn "andqi3"
[(set (match_operand:QI 0 "general_operand" "=g")
(and:QI (match_operand:QI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"andb2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"andb2 %1,%0\";
return \"andb3 %2,%1,%0\";
}")
(define_insn "iorsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(ior:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:SI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"orl2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"orl2 %1,%0\";
return \"orl3 %2,%1,%0\";
}")
(define_insn "iorhi3"
[(set (match_operand:HI 0 "general_operand" "=g")
(ior:HI (match_operand:HI 1 "general_operand" "g")
(match_operand:HI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"orw2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"orw2 %1,%0\";
return \"orw3 %2,%1,%0\";
}")
(define_insn "iorqi3"
[(set (match_operand:QI 0 "general_operand" "=g")
(ior:QI (match_operand:QI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"orb2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"orb2 %1,%0\";
return \"orb3 %2,%1,%0\";
}")
(define_insn "xorsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(xor:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:SI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"xorl2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"xorl2 %1,%0\";
return \"xorl3 %2,%1,%0\";
}")
(define_insn "xorhi3"
[(set (match_operand:HI 0 "general_operand" "=g")
(xor:HI (match_operand:HI 1 "general_operand" "g")
(match_operand:HI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"xorw2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"xorw2 %1,%0\";
return \"xorw3 %2,%1,%0\";
}")
(define_insn "xorqi3"
[(set (match_operand:QI 0 "general_operand" "=g")
(xor:QI (match_operand:QI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"*
{
if (rtx_equal_p (operands[0], operands[1]))
return \"xorb2 %2,%0\";
if (rtx_equal_p (operands[0], operands[2]))
return \"xorb2 %1,%0\";
return \"xorb3 %2,%1,%0\";
}")
; shifts on the tahoe are expensive, try some magic first...
(define_insn "ashlsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(ashift:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"*
{
if (GET_CODE(operands[2]) == REG)
return \"mull3 ___shtab[%2],%1,%0\";
/* if (GET_CODE(operands[2]) == REG)
if (rtx_equal_p (operands[0], operands[1]))
return \"mull2 ___shtab[%2],%1\";
else
return \"mull3 ___shtab[%2],%1,%0\"; */
if (GET_CODE(operands[1]) == REG)
{
if (operands[2] == const1_rtx)
{
CC_STATUS_INIT;
return \"movaw 0[%1],%0\";
}
if (GET_CODE(operands[2]) == CONST_INT && INTVAL(operands[2]) == 2)
{
CC_STATUS_INIT;
return \"moval 0[%1],%0\";
}
}
if (GET_CODE(operands[2]) != CONST_INT || INTVAL(operands[2]) == 1)
return \"shal %2,%1,%0\";
if (rtx_equal_p (operands[0], operands[1]))
return \"mull2 %s2,%1\";
else
return \"mull3 %s2,%1,%0\";
}")
(define_insn "ashrsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(ashiftrt:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"shar %2,%1,%0")
; shifts are very expensive, try some magic first...
(define_insn "lshlsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(lshift:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"*
{
if (GET_CODE(operands[2]) == REG)
return \"mull3 ___shtab[%2],%1,%0\";
/* if (GET_CODE(operands[2]) == REG)
if (rtx_equal_p (operands[0], operands[1]))
return \"mull2 ___shtab[%2],%1\";
else
return \"mull3 ___shtab[%2],%1,%0\"; */
if (GET_CODE(operands[1]) == REG)
{
if (operands[2] == const1_rtx)
{
CC_STATUS_INIT;
return \"movaw 0[%1],%0\";
}
if (GET_CODE(operands[2]) == CONST_INT && INTVAL(operands[2]) == 2)
{
CC_STATUS_INIT;
return \"moval 0[%1],%0\";
}
}
if (GET_CODE(operands[2]) != CONST_INT || INTVAL(operands[2]) == 1)
return \"shll %2,%1,%0\";
if (rtx_equal_p (operands[0], operands[1]))
return \"mull2 %s2,%1\";
else
return \"mull3 %s2,%1,%0\";
}")
(define_insn "lshrsi3"
[(set (match_operand:SI 0 "general_operand" "=g")
(lshiftrt:SI (match_operand:SI 1 "general_operand" "g")
(match_operand:QI 2 "general_operand" "g")))]
""
"shrl %2,%1,%0")
(define_insn "negsi2"
[(set (match_operand:SI 0 "general_operand" "=g")
(neg:SI (match_operand:SI 1 "general_operand" "g")))]
""
"mnegl %1,%0")
(define_insn "neghi2"
[(set (match_operand:HI 0 "general_operand" "=g")
(neg:HI (match_operand:HI 1 "general_operand" "g")))]
""
"mnegw %1,%0")
(define_insn "negqi2"
[(set (match_operand:QI 0 "general_operand" "=g")
(neg:QI (match_operand:QI 1 "general_operand" "g")))]
""
"mnegb %1,%0")
; negsf2 can only negate the value already in the fpp accumulator.
; The value remains in the fpp accumulator. No flags are set.
(define_insn "negsf2"
[(set (match_operand:SF 0 "register_operand" "=a,=a")
(neg:SF (match_operand:SF 1 "register_operand" "a,g")))]
""
"*
{
CC_STATUS_INIT;
switch (which_alternative)
{
case 0: return \"negf\";
case 1: return \"lnf %1\";
}
}")
; negdf2 can only negate the value already in the fpp accumulator.
; The value remains in the fpp accumulator. No flags are set.
(define_insn "negdf2"
[(set (match_operand:DF 0 "register_operand" "=a,=a")
(neg:DF (match_operand:DF 1 "register_operand" "a,g")))]
""
"*
{
CC_STATUS_INIT;
switch (which_alternative)
{
case 0: return \"negd\";
case 1: return \"lnd %1\";
}
}")
; sqrtsf2 tahoe can calculate the square root of a float in the
; fpp accumulator. The answer remains in the fpp accumulator. No
; flags are set by this function.
(define_insn "sqrtsf2"
[(set (match_operand:SF 0 "register_operand" "=a")
(sqrt:SF (match_operand:SF 1 "register_operand" "0")))]
""
"*
{
CC_STATUS_INIT;
return \"sqrtf\";
}")
; ffssi2 tahoe instruction gives one less than gcc desired result for
; any given input. So the increment is necessary here.
(define_insn "ffssi2"
[(set (match_operand:SI 0 "general_operand" "=g")
(ffs:SI (match_operand:SI 1 "general_operand" "g")))]
""
"*
{
if (push_operand(operands[0], SImode))
return \"ffs %1,%0\;incl (sp)\";
return \"ffs %1,%0\;incl %0\";
}")
(define_insn "one_cmplsi2"
[(set (match_operand:SI 0 "general_operand" "=g")
(not:SI (match_operand:SI 1 "general_operand" "g")))]
""
"mcoml %1,%0")
(define_insn "one_cmplhi2"
[(set (match_operand:HI 0 "general_operand" "=g")
(not:HI (match_operand:HI 1 "general_operand" "g")))]
""
"mcomw %1,%0")
(define_insn "one_cmplqi2"
[(set (match_operand:QI 0 "general_operand" "=g")
(not:QI (match_operand:QI 1 "general_operand" "g")))]
""
"mcomb %1,%0")
; cmpsi works fine, but due to microcode problems, the tahoe doesn't
; properly compare hi's and qi's. Leaving them out seems to be acceptable
; to the compiler, so they were left out. Compares of the stack are
; possible, though.
; There are optimized cases possible, however. These follow first.
(define_insn ""
[(set (cc0)
(compare (sign_extend:SI (match_operand:HI 0 "memory_operand" "m"))
(sign_extend:SI (match_operand:HI 1 "memory_operand" "m"))))]
""
"cmpw %0,%1")
(define_insn ""
[(set (cc0)
(compare (match_operand:SI 0 "nonmemory_operand" "ri")
(sign_extend:SI (match_operand:HI 1 "memory_operand" "m"))))]
""
"cmpw %0,%1")
(define_insn ""
[(set (cc0)
(compare (sign_extend:SI (match_operand:HI 0 "memory_operand" "m"))
(match_operand:SI 1 "nonmemory_operand" "ri")))]
""
"cmpw %0,%1")
; zero-extended compares give the same result as sign-extended compares, if
; the compare is unsigned. Just see: if both operands are <65536 they are the
; same in both cases. If both are >=65536 the you effectively compare x+D
; with y+D, where D=2**32-2**16, so the result is the same. if x<65536 and
; y>=65536 then you compare x with y+D, and in both cases the result is x<y.
(define_insn ""
[(set (cc0)
(compare (zero_extend:SI (match_operand:HI 0 "memory_operand" "m"))
(zero_extend:SI (match_operand:HI 1 "memory_operand" "m"))))]
"tahoe_cmp_check (insn, operands[0], 0)"
"cmpw %0,%1")
(define_insn ""
[(set (cc0)
(compare (zero_extend:SI (match_operand:HI 0 "memory_operand" "m"))
(match_operand:SI 1 "immediate_operand" "i")))]
"tahoe_cmp_check(insn, operands[1], 65535)"
"*
{
if (INTVAL (operands[1]) > 32767)
operands[1] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[1]) + 0xffff0000);
return \"cmpw %0,%1\";
}")
(define_insn ""
[(set (cc0)
(compare (sign_extend:SI (match_operand:QI 0 "memory_operand" "m"))
(sign_extend:SI (match_operand:QI 1 "memory_operand" "m"))))]
""
"cmpb %0,%1")
(define_insn ""
[(set (cc0)
(compare (match_operand:SI 0 "nonmemory_operand" "ri")
(sign_extend:SI (match_operand:QI 1 "memory_operand" "m"))))]
""
"cmpb %0,%1")
(define_insn ""
[(set (cc0)
(compare (sign_extend:SI (match_operand:QI 0 "memory_operand" "m"))
(match_operand:SI 1 "nonmemory_operand" "ri")))]
""
"cmpb %0,%1")
; zero-extended compares give the same result as sign-extended compares, if
; the compare is unsigned. Just see: if both operands are <128 they are the
; same in both cases. If both are >=128 the you effectively compare x+D
; with y+D, where D=2**32-2**8, so the result is the same. if x<128 and
; y>=128 then you compare x with y+D, and in both cases the result is x<y.
(define_insn ""
[(set (cc0)
(compare (zero_extend:SI (match_operand:QI 0 "memory_operand" "m"))
(zero_extend:SI (match_operand:QI 1 "memory_operand" "m"))))]
"tahoe_cmp_check (insn, operands[0], 0)"
"cmpb %0,%1")
(define_insn ""
[(set (cc0)
(compare (zero_extend:SI (match_operand:QI 0 "memory_operand" "m"))
(match_operand:SI 1 "immediate_operand" "i")))]
"tahoe_cmp_check(insn, operands[1], 255)"
"*
{
if (INTVAL (operands[1]) > 127)
operands[1] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[1]) + 0xffffff00);
return \"cmpb %0,%1\";
}")
(define_insn "cmpsi"
[(set (cc0)
(compare (match_operand:SI 0 "nonimmediate_operand" "g")
(match_operand:SI 1 "general_operand" "g")))]
""
"cmpl %0,%1")
; cmpsf similar to vax, but first operand is expected to be in the
; fpp accumulator.
(define_insn "cmpsf"
[(set (cc0)
(compare (match_operand:SF 0 "general_operand" "a,g")
(match_operand:SF 1 "general_operand" "g,g")))]
""
"*
{
switch (which_alternative)
{
case 0: return \"cmpf %1\";
case 1: return \"cmpf2 %0,%1\";
}
}")
; cmpdf similar to vax, but first operand is expected to be in the
; fpp accumulator. Immediate doubles not allowed.
(define_insn "cmpdf"
[(set (cc0)
(compare (match_operand:DF 0 "general_operand" "a,rm")
(match_operand:DF 1 "general_operand" "rm,rm")))]
""
"*
{
switch (which_alternative)
{
case 0: return \"cmpd %1\";
case 1: return \"cmpd2 %0,%1\";
}
}")
;; We don't want to allow a constant operand for test insns because
;; (set (cc0) (const_int foo)) has no mode information. Such insns will
;; be folded while optimizing anyway.
(define_insn "tstsi"
[(set (cc0)
(match_operand:SI 0 "nonimmediate_operand" "g"))]
""
"tstl %0")
; small tests from memory are normal, but testing from registers doesn't
; expand the data properly. So test in this case does a convert and tests
; the new register data from the stack.
; First some special cases that do work
(define_insn ""
[(set (cc0)
(sign_extend:SI (match_operand:HI 0 "memory_operand" "m")))]
""
"tstw %0")
(define_insn ""
[(set (cc0)
(zero_extend:SI (match_operand:HI 0 "memory_operand" "m")))]
"tahoe_cmp_check (insn, operands[0], 0)"
"tstw %0")
(define_insn "tsthi"
[(set (cc0)
(match_operand:HI 0 "extendable_operand" "m,!r"))]
"GET_MODE (operands[0]) != VOIDmode"
"*
{
rtx xoperands[2];
extern rtx tahoe_reg_conversion_loc;
switch (which_alternative)
{
case 0:
return \"tstw %0\";
case 1:
xoperands[0] = operands[0];
xoperands[1] = tahoe_reg_conversion_loc;
output_asm_insn (\"movl %0,%1\", xoperands);
xoperands[1] = plus_constant (XEXP (tahoe_reg_conversion_loc, 0), 2);
output_asm_insn (\"tstw %a1\", xoperands);
return \"\";
}
}")
(define_insn ""
[(set (cc0)
(sign_extend:SI (match_operand:QI 0 "memory_operand" "m")))]
""
"tstb %0")
(define_insn ""
[(set (cc0)
(zero_extend:SI (match_operand:QI 0 "memory_operand" "m")))]
"tahoe_cmp_check (insn, operands[0], 0)"
"tstb %0")
(define_insn "tstqi"
[(set (cc0)
(match_operand:QI 0 "extendable_operand" "m,!r"))]
"GET_MODE (operands[0]) != VOIDmode"
"*
{
rtx xoperands[2];
extern rtx tahoe_reg_conversion_loc;
switch (which_alternative)
{
case 0:
return \"tstb %0\";
case 1:
xoperands[0] = operands[0];
xoperands[1] = tahoe_reg_conversion_loc;
output_asm_insn (\"movl %0,%1\", xoperands);
xoperands[1] = plus_constant (XEXP (tahoe_reg_conversion_loc, 0), 3);
output_asm_insn (\"tstb %a1\", xoperands);
return \"\";
}
}")
; tstsf compares a given value to a value already in the fpp accumulator.
; No flags are set by this so ignore them.
(define_insn "tstsf"
[(set (cc0)
(match_operand:SF 0 "register_operand" "a"))]
""
"tstf")
; tstdf compares a given value to a value already in the fpp accumulator.
; immediate doubles not allowed. Flags are ignored after this.
(define_insn "tstdf"
[(set (cc0)
(match_operand:DF 0 "register_operand" "a"))]
""
"tstd")
; movstrhi tahoe instruction does not load registers by itself like
; the vax counterpart does. registers 0-2 must be primed by hand.
; we have loaded the registers in the order: dst, src, count.
(define_insn "movstrhi"
[(set (match_operand:BLK 0 "general_operand" "p")
(match_operand:BLK 1 "general_operand" "p"))
(use (match_operand:HI 2 "general_operand" "g"))
(clobber (reg:SI 0))
(clobber (reg:SI 1))
(clobber (reg:SI 2))]
""
"movab %0,r1\;movab %1,r0\;movl %2,r2\;movblk")
; floatsisf2 on tahoe converts the long from reg/mem into the fpp
; accumulator. There are no hi and qi counterparts. Flags are not
; set correctly here.
(define_insn "floatsisf2"
[(set (match_operand:SF 0 "register_operand" "=a")
(float:SF (match_operand:SI 1 "general_operand" "g")))]
""
"*
{
CC_STATUS_INIT;
return \"cvlf %1\";
}")
; floatsidf2 on tahoe converts the long from reg/mem into the fpp
; accumulator. There are no hi and qi counterparts. Flags are not
; set correctly here.
(define_insn "floatsidf2"
[(set (match_operand:DF 0 "register_operand" "=a")
(float:DF (match_operand:SI 1 "general_operand" "g")))]
""
"*
{
CC_STATUS_INIT;
return \"cvld %1\";
}")
; fix_truncsfsi2 to convert a float to long, tahoe must have the float
; in the fpp accumulator. Flags are not set here.
(define_insn "fix_truncsfsi2"
[(set (match_operand:SI 0 "general_operand" "=g")
(fix:SI (fix:SF (match_operand:SF 1 "register_operand" "a"))))]
""
"*
{
CC_STATUS_INIT;
return \"cvfl %0\";
}")
; fix_truncsfsi2 to convert a double to long, tahoe must have the double
; in the fpp accumulator. Flags are not set here.
(define_insn "fix_truncdfsi2"
[(set (match_operand:SI 0 "general_operand" "=g")
(fix:SI (fix:DF (match_operand:DF 1 "register_operand" "a"))))]
""
"*
{
CC_STATUS_INIT;
return \"cvdl %0\";
}")
(define_insn "truncsihi2"
[(set (match_operand:HI 0 "general_operand" "=g")
(truncate:HI (match_operand:SI 1 "general_operand" "g")))]
""
"cvtlw %1,%0")
(define_insn "truncsiqi2"
[(set (match_operand:QI 0 "general_operand" "=g")
(truncate:QI (match_operand:SI 1 "general_operand" "g")))]
""
"cvtlb %1,%0")
(define_insn "trunchiqi2"
[(set (match_operand:QI 0 "general_operand" "=g")
(truncate:QI (match_operand:HI 1 "general_operand" "g")))]
""
"cvtwb %1,%0")
; The fpp related instructions don't set flags, so ignore them
; after this instruction.
(define_insn "truncdfsf2"
[(set (match_operand:SF 0 "register_operand" "=a")
(float_truncate:SF (match_operand:DF 1 "register_operand" "0")))]
""
"*
{
CC_STATUS_INIT;
return \"cvdf\";
}")
; This monster is to cover for the Tahoe's nasty habit of not extending
; a number if the source is in a register. (It just moves it!) Case 0 is
; a normal extend from memory. Case 1 does the extension from the top of
; the stack. Extension from the stack doesn't set the flags right since
; the moval changes them.
(define_insn "extendhisi2"
[(set (match_operand:SI 0 "general_operand" "=g,?=g")
(sign_extend:SI (match_operand:HI 1 "nonimmediate_operand" "m,r")))]
""
"*
{
switch (which_alternative)
{
case 0:
return \"cvtwl %1,%0\";
case 1:
if (push_operand (operands[0], SImode))
return \"pushl %1\;cvtwl 2(sp),(sp)\";
else
{
CC_STATUS_INIT;
return \"pushl %1\;cvtwl 2(sp),%0\;moval 4(sp),sp\";
}
}
}")
; This monster is to cover for the Tahoe's nasty habit of not extending
; a number if the source is in a register. (It just moves it!) Case 0 is
; a normal extend from memory. Case 1 does the extension from the top of
; the stack. Extension from the stack doesn't set the flags right since
; the moval changes them.
(define_insn "extendqisi2"
[(set (match_operand:SI 0 "general_operand" "=g,?=g")
(sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "m,r")))]
""
"*
{
switch (which_alternative)
{
case 0:
return \"cvtbl %1,%0\";
case 1:
if (push_operand (operands[0], SImode))
return \"pushl %1\;cvtbl 3(sp),(sp)\";
else
{
CC_STATUS_INIT;
return \"pushl %1\;cvtbl 3(sp),%0\;moval 4(sp),sp\";
}
}
}")
; This monster is to cover for the Tahoe's nasty habit of not extending
; a number if the source is in a register. (It just moves it!) Case 0 is
; a normal extend from memory. Case 1 does the extension from the top of
; the stack. Extension from the stack doesn't set the flags right since
; the moval changes them.
(define_insn "extendqihi2"
[(set (match_operand:HI 0 "general_operand" "=g,?=g")
(sign_extend:HI (match_operand:QI 1 "nonimmediate_operand" "m,r")))]
""
"*
{
switch (which_alternative)
{
case 0:
return \"cvtbw %1,%0\";
case 1:
if (push_operand (operands[0], SImode))
return \"pushl %1\;cvtbw 3(sp),(sp)\";
else
{
CC_STATUS_INIT;
return \"pushl %1\;cvtbw 3(sp),%0\;moval 4(sp),sp\";
}
}
}")
; extendsfdf2 tahoe uses the fpp accumulator to do the extension.
; It takes a float and loads it up directly as a double.
(define_insn "extendsfdf2"
[(set (match_operand:DF 0 "register_operand" "=a")
(float_extend:DF (match_operand:SF 1 "general_operand" "g")))]
""
"*
{
CC_STATUS_INIT;
return \"ldfd %1\";
}")
; movz works fine from memory but not from register for the same reasons
; the cvt instructions don't work right. So we use the normal instruction
; from memory and we use an and to simulate it from register. This is faster
; than pulling it off the stack.
(define_insn "zero_extendhisi2"
[(set (match_operand:SI 0 "general_operand" "=g,?=g")
(zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "m,r")))]
""
"*
{
switch (which_alternative)
{
case 0: return \"movzwl %1,%0\";
case 1: return \"andl3 $0xffff,%1,%0\";
}
}")
; movz works fine from memory but not from register for the same reasons
; the cvt instructions don't work right. So we use the normal instruction
; from memory and we use an and to simulate it from register. This is faster
; than pulling it off the stack.
(define_insn "zero_extendqihi2"
[(set (match_operand:HI 0 "general_operand" "=g,?=g")
(zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "m,r")))]
""
"*
{
switch (which_alternative)
{
case 0: return \"movzbw %1,%0\";
case 1: return \"andw3 $0xff,%1,%0\";
}
}")
; movz works fine from memory but not from register for the same reasons
; the cvt instructions don't work right. So we use the normal instruction
; from memory and we use an and to simulate it from register. This is faster
; than pulling it off the stack.
(define_insn "zero_extendqisi2"
[(set (match_operand:SI 0 "general_operand" "=g,?=g")
(zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "m,r")))]
""
"*
{
switch (which_alternative)
{
case 0: return \"movzbl %1,%0\";
case 1: return \"andl3 $0xff,%1,%0\";
}
}")
(define_insn "beq"
[(set (pc)
(if_then_else (eq (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jeql %l0")
(define_insn "bne"
[(set (pc)
(if_then_else (ne (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jneq %l0")
(define_insn "bgt"
[(set (pc)
(if_then_else (gt (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jgtr %l0")
(define_insn "bgtu"
[(set (pc)
(if_then_else (gtu (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jgtru %l0")
(define_insn "blt"
[(set (pc)
(if_then_else (lt (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jlss %l0")
(define_insn "bltu"
[(set (pc)
(if_then_else (ltu (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jlssu %l0")
(define_insn "bge"
[(set (pc)
(if_then_else (ge (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jgeq %l0")
(define_insn "bgeu"
[(set (pc)
(if_then_else (geu (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jgequ %l0")
(define_insn "ble"
[(set (pc)
(if_then_else (le (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jleq %l0")
(define_insn "bleu"
[(set (pc)
(if_then_else (leu (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"jlequ %l0")
; gcc does not account for register mask/argc longword. Thus the number
; for the call = number bytes for args + 4
(define_insn "call"
[(call (match_operand:QI 0 "memory_operand" "m")
(match_operand:QI 1 "general_operand" "g"))]
""
"*
{
operands[1] = gen_rtx (CONST_INT, VOIDmode, (INTVAL (operands[1]) + 4));
if (GET_CODE(operands[0]) == MEM
&& CONSTANT_ADDRESS_P (XEXP(operands[0], 0))
&& INTVAL (operands[1]) < 64)
return \"callf %1,%0\"; /* this is much faster */
return \"calls %1,%0\";
}")
; gcc does not account for register mask/argc longword. Thus the number
; for the call = number bytes for args + 4
(define_insn "call_value"
[(set (match_operand 0 "" "=g")
(call (match_operand:QI 1 "memory_operand" "m")
(match_operand:QI 2 "general_operand" "g")))]
""
"*
{
operands[2] = gen_rtx (CONST_INT, VOIDmode, (INTVAL (operands[2]) + 4));
if (GET_CODE(operands[1]) == MEM
&& CONSTANT_ADDRESS_P (XEXP(operands[1], 0))
&& INTVAL (operands[2]) < 64)
return \"callf %2,%1\"; /* this is much faster */
return \"calls %2,%1\";
}")
(define_insn "return"
[(return)]
""
"ret")
(define_insn "nop"
[(const_int 0)]
""
"nop")
; casesi this code extracted from the vax code. The instructions are
; very similar. Tahoe requires that the table be word aligned. GCC
; places the table immediately after, thus the alignment directive.
(define_insn "casesi"
[(set (pc)
(if_then_else (le (minus:SI (match_operand:SI 0 "general_operand" "g")
(match_operand:SI 1 "general_operand" "g"))
(match_operand:SI 2 "general_operand" "g"))
(plus:SI (sign_extend:SI
(mem:HI (plus:SI (pc)
(minus:SI (match_dup 0)
(match_dup 1)))))
(label_ref:SI (match_operand 3 "" "")))
(pc)))]
""
"casel %0,%1,%2\;.align %@")
(define_insn "jump"
[(set (pc)
(label_ref (match_operand 0 "" "")))]
""
"jbr %l0")
;; This is the list of all the non-standard insn patterns
; This is used to access the address of a byte. This is similar to
; movqi, but the second operand had to be "address_operand" type, so
; it had to be an unnamed one.
(define_insn ""
[(set (match_operand:SI 0 "general_operand" "=g")
(match_operand:QI 1 "address_operand" "p"))]
""
"*
{
if (push_operand (operands[0], SImode))
return \"pushab %a1\";
return \"movab %a1,%0\";
}")
; This is used to access the address of a word. This is similar to
; movhi, but the second operand had to be "address_operand" type, so
; it had to be an unnamed one.
(define_insn ""
[(set (match_operand:SI 0 "general_operand" "=g")
(match_operand:HI 1 "address_operand" "p"))]
""
"*
{
if (push_operand (operands[0], SImode))
return \"pushaw %a1\";
return \"movaw %a1,%0\";
}")
; This is used to access the address of a long. This is similar to
; movsi, but the second operand had to be "address_operand" type, so
; it had to be an unnamed one.
(define_insn ""
[(set (match_operand:SI 0 "general_operand" "=g")
(match_operand:SI 1 "address_operand" "p"))]
""
"*
{
if (push_operand (operands[0], SImode))
return \"pushal %a1\";
return \"moval %a1,%0\";
}")
; bit test longword instruction, same as vax
(define_insn ""
[(set (cc0)
(and:SI (match_operand:SI 0 "general_operand" "g")
(match_operand:SI 1 "general_operand" "g")))]
""
"bitl %0,%1")
; bit test word instructions, same as vax
(define_insn ""
[(set (cc0)
(and:HI (match_operand:HI 0 "general_operand" "g")
(match_operand:HI 1 "general_operand" "g")))]
""
"bitw %0,%1")
; bit test instructions, same as vax
(define_insn ""
[(set (cc0)
(and:QI (match_operand:QI 0 "general_operand" "g")
(match_operand:QI 1 "general_operand" "g")))]
""
"bitb %0,%1")
; bne counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (eq (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jneq %l0")
; beq counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (ne (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jeql %l0")
; ble counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (gt (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jleq %l0")
; bleu counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (gtu (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jlequ %l0")
; bge counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (lt (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jgeq %l0")
; bgeu counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (ltu (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jgequ %l0")
; blt counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (ge (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jlss %l0")
; bltu counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (geu (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jlssu %l0")
; bgt counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (le (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jgtr %l0")
; bgtu counterpart. in case gcc reverses the conditional.
(define_insn ""
[(set (pc)
(if_then_else (leu (cc0)
(const_int 0))
(pc)
(label_ref (match_operand 0 "" ""))))]
""
"jgtru %l0")
; casesi alternate form as found in vax code. this form is to
; compensate for the table's offset being no distance (0 displacement)
(define_insn ""
[(set (pc)
(if_then_else (le (match_operand:SI 0 "general_operand" "g")
(match_operand:SI 1 "general_operand" "g"))
(plus:SI (sign_extend:SI
(mem:HI (plus:SI (pc)
(minus:SI (match_dup 0)
(const_int 0)))))
(label_ref:SI (match_operand 3 "" "")))
(pc)))]
""
"casel %0,$0,%1\;.align %@")
; casesi alternate form as found in vax code. another form to
; compensate for the table's offset being no distance (0 displacement)
(define_insn ""
[(set (pc)
(if_then_else (le (match_operand:SI 0 "general_operand" "g")
(match_operand:SI 1 "general_operand" "g"))
(plus:SI (sign_extend:SI
(mem:HI (plus:SI (pc)
(match_dup 0))))
(label_ref:SI (match_operand 3 "" "")))
(pc)))]
""
"casel %0,$0,%1 \;.align %@")
(define_insn ""
[(set (pc)
(if_then_else
(lt (plus:SI (match_operand:SI 0 "general_operand" "+g")
(const_int 1))
(match_operand:SI 1 "general_operand" "g"))
(label_ref (match_operand 2 "" ""))
(pc)))
(set (match_dup 0)
(plus:SI (match_dup 0)
(const_int 1)))]
""
"aoblss %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(le (plus:SI (match_operand:SI 0 "general_operand" "+g")
(const_int 1))
(match_operand:SI 1 "general_operand" "g"))
(label_ref (match_operand 2 "" ""))
(pc)))
(set (match_dup 0)
(plus:SI (match_dup 0)
(const_int 1)))]
""
"aobleq %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(ge (plus:SI (match_operand:SI 0 "general_operand" "+g")
(const_int 1))
(match_operand:SI 1 "general_operand" "g"))
(pc)
(label_ref (match_operand 2 "" ""))))
(set (match_dup 0)
(plus:SI (match_dup 0)
(const_int 1)))]
""
"aoblss %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(gt (plus:SI (match_operand:SI 0 "general_operand" "+g")
(const_int 1))
(match_operand:SI 1 "general_operand" "g"))
(pc)
(label_ref (match_operand 2 "" ""))))
(set (match_dup 0)
(plus:SI (match_dup 0)
(const_int 1)))]
""
"aobleq %1,%0,%l2")
; bbs/bbc
(define_insn ""
[(set (pc)
(if_then_else
(ne (sign_extract:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
(const_int 1)
(subreg:QI (match_operand:SI 1 "general_operand" "g") 0))
(const_int 0))
(label_ref (match_operand 2 "" ""))
(pc)))]
""
"bbs %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(eq (sign_extract:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
(const_int 1)
(subreg:QI (match_operand:SI 1 "general_operand" "g") 0))
(const_int 0))
(label_ref (match_operand 2 "" ""))
(pc)))]
""
"bbc %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(ne (sign_extract:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
(const_int 1)
(subreg:QI (match_operand:SI 1 "general_operand" "g") 0))
(const_int 0))
(pc)
(label_ref (match_operand 2 "" ""))))]
""
"bbc %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(eq (sign_extract:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
(const_int 1)
(subreg:QI (match_operand:SI 1 "general_operand" "g") 0))
(const_int 0))
(pc)
(label_ref (match_operand 2 "" ""))))]
""
"bbs %1,%0,%l2")
; if the shift count is a byte in a register we can use it as a long
(define_insn ""
[(set (pc)
(if_then_else
(ne (sign_extract:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
(const_int 1)
(match_operand:QI 1 "register_operand" "r"))
(const_int 0))
(label_ref (match_operand 2 "" ""))
(pc)))]
""
"bbs %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(eq (sign_extract:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
(const_int 1)
(match_operand:QI 1 "register_operand" "r"))
(const_int 0))
(label_ref (match_operand 2 "" ""))
(pc)))]
""
"bbc %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(ne (sign_extract:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
(const_int 1)
(match_operand:QI 1 "register_operand" "r"))
(const_int 0))
(pc)
(label_ref (match_operand 2 "" ""))))]
""
"bbc %1,%0,%l2")
(define_insn ""
[(set (pc)
(if_then_else
(eq (sign_extract:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
(const_int 1)
(match_operand:QI 1 "register_operand" "r"))
(const_int 0))
(pc)
(label_ref (match_operand 2 "" ""))))]
""
"bbs %1,%0,%l2")
; special case for 1 << constant. We don't do these because they are slower
; than the bitl instruction
;(define_insn ""
; [(set (pc)
; (if_then_else
; (ne (and:SI (match_operand:SI 0 "nonimmediate_operand" "%rm")
; (match_operand:SI 1 "immediate_operand" "i"))
; (const_int 0))
; (label_ref (match_operand 2 "" ""))
; (pc)))]
; "GET_CODE (operands[1]) == CONST_INT
; && exact_log2 (INTVAL (operands[1])) >= 0"
; "*
;{
; operands[1]
; = gen_rtx (CONST_INT, VOIDmode, exact_log2 (INTVAL (operands[1])));
; return \"bbs %1,%0,%l2\";
;}")
;
;(define_insn ""
; [(set (pc)
; (if_then_else
; (eq (and:SI (match_operand:SI 0 "nonimmediate_operand" "%rm")
; (match_operand:SI 1 "immediate_operand" "i"))
; (const_int 0))
; (label_ref (match_operand 2 "" ""))
; (pc)))]
; "GET_CODE (operands[1]) == CONST_INT
; && exact_log2 (INTVAL (operands[1])) >= 0"
; "*
;{
; operands[1]
; = gen_rtx (CONST_INT, VOIDmode, exact_log2 (INTVAL (operands[1])));
; return \"bbc %1,%0,%l2\";
;}")
;
;(define_insn ""
; [(set (pc)
; (if_then_else
; (ne (and:SI (match_operand:SI 0 "nonimmediate_operand" "%rm")
; (match_operand:SI 1 "immediate_operand" "i"))
; (const_int 0))
; (pc)
; (label_ref (match_operand 2 "" ""))))]
; "GET_CODE (operands[1]) == CONST_INT
; && exact_log2 (INTVAL (operands[1])) >= 0"
; "*
;{
; operands[1]
; = gen_rtx (CONST_INT, VOIDmode, exact_log2 (INTVAL (operands[1])));
; return \"bbc %1,%0,%l2\";
;}")
;
;(define_insn ""
; [(set (pc)
; (if_then_else
; (eq (and:SI (match_operand:SI 0 "nonimmediate_operand" "%rm")
; (match_operand:SI 1 "immediate_operand" "i"))
; (const_int 0))
; (pc)
; (label_ref (match_operand 2 "" ""))))]
; "GET_CODE (operands[1]) == CONST_INT
; && exact_log2 (INTVAL (operands[1])) >= 0"
; "*
;{
; operands[1]
; = gen_rtx (CONST_INT, VOIDmode, exact_log2 (INTVAL (operands[1])));
; return \"bbs %1,%0,%l2\";
;}")
;;- Local variables:
;;- mode:emacs-lisp
;;- comment-start: ";;- "
;;- eval: (set-syntax-table (copy-sequence (syntax-table)))
;;- eval: (modify-syntax-entry ?[ "(]")
;;- eval: (modify-syntax-entry ?] ")[")
;;- eval: (modify-syntax-entry ?{ "(}")
;;- eval: (modify-syntax-entry ?} "){")
;;- End: