--- /dev/null
+;;- Machine description Acorn RISC Machine for GNU compiler
+;; Copyright (C) 1991 Free Software Foundation, Inc.
+;; Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
+;; and Martin Simmons (@harleqn.co.uk).
+
+;; 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.
+
+;;- See file "rtl.def" for documentation on define_insn, match_*, et. al.
+
+;; Every template must be output by arm_output_asm_insn, since this keeps
+;; track of the offset of labels within the text segment. This is needed to
+;; to be able to (correctly) output instructions for loading a value from a
+;; function's constant pool, since different instructions are needed when the
+;; constant pool is more than 4095 bytes away from the PC.
+\f
+;; Addition insns.
+
+(define_insn "adddi3"
+ [(set (match_operand:DI 0 "di_operand" "=r")
+ (plus:DI (match_operand:DI 1 "di_operand" "%r")
+ (match_operand:DI 2 "di_operand" "r")))]
+ ""
+ "*
+ arm_output_asm_insn (\"adds\\t%0, %1, %2\", operands);
+ return (arm_output_asm_insn (\"adc\\t%R0, %R1, %R2\", operands));
+")
+
+(define_insn "addsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r,r")
+ (plus:SI (match_operand:SI 1 "register_operand" "r,r")
+ (match_operand:SI 2 "general_operand" "r,n")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"add\\t%0, %1, %2\", operands));
+ case 1:
+ return (output_add_immediate (operands));
+ }
+")
+
+(define_insn "addsf3"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+ (plus:SF (match_operand:SF 1 "register_operand" "f")
+ (match_operand:SF 2 "fpu_rhs_operand" "fG")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"adfs\\t%0, %1, %2\", operands));
+")
+
+(define_insn "adddf3"
+ [(set (match_operand:DF 0 "register_operand" "=f")
+ (plus:DF (match_operand:DF 1 "register_operand" "f")
+ (match_operand:DF 2 "fpu_rhs_operand" "fG")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"adfd\\t%0, %1, %2\", operands));
+")
+
+(define_insn "subdi3"
+ [(set (match_operand:DI 0 "di_operand" "=r")
+ (minus:DI (match_operand:DI 1 "di_operand" "%r")
+ (match_operand:DI 2 "di_operand" "r")))]
+ ""
+ "*
+ arm_output_asm_insn (\"subs\\t%0, %1, %2\", operands);
+ return (arm_output_asm_insn (\"sbc\\t%R0, %R1, %R2\", operands));
+")
+
+(define_insn "subsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r,r,r")
+ (minus:SI (match_operand:SI 1 "arm_rhs_operand" "r,r,I")
+ (match_operand:SI 2 "general_operand" "r,n,r")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"sub\\t%0, %1, %2\", operands));
+ case 1:
+ operands[2] = gen_rtx (CONST_INT, VOIDmode, -INTVAL (operands[2]));
+ return (output_add_immediate (operands));
+ case 2:
+ return (arm_output_asm_insn (\"rsb\\t%0, %2, %1\", operands));
+ }
+")
+
+(define_insn "subsf3"
+ [(set (match_operand:SF 0 "register_operand" "=f,f")
+ (minus:SF (match_operand:SF 1 "fpu_rhs_operand" "f,G")
+ (match_operand:SF 2 "fpu_rhs_operand" "fG,f")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"sufs\\t%0, %1, %2\", operands));
+ case 1:
+ return (arm_output_asm_insn (\"rsfs\\t%0, %2, %1\", operands));
+ }
+")
+
+(define_insn "subdf3"
+ [(set (match_operand:DF 0 "register_operand" "=f,f")
+ (minus:DF (match_operand:DF 1 "fpu_rhs_operand" "f,G")
+ (match_operand:DF 2 "fpu_rhs_operand" "fG,f")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"sufd\\t%0, %1, %2\", operands));
+ case 2:
+ return (arm_output_asm_insn (\"rsfd\\t%0, %2, %1\", operands));
+ }
+")
+\f
+;; Multiplication insns
+
+;; Note the '&' in the following insn which tells GCC that the second operand
+;; must be corruptable and hence not equal to the first. (Too strict in fact.)
+
+(define_insn "mulsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (mult:SI (match_operand:SI 1 "register_operand" "&r")
+ (match_operand:SI 2 "register_operand" "r")))]
+ ""
+ "*
+ if (REGNO (operands[0]) == REGNO (operands[1]))
+ return (arm_output_asm_insn (\"mul\\t%0, %2, %1\", operands));
+ else
+ return (arm_output_asm_insn (\"mul\\t%0, %1, %2\", operands));
+")
+
+;; Unnamed templates to match MLA instruction.
+
+(define_insn ""
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (plus:SI
+ (mult:SI (match_operand:SI 1 "register_operand" "&r")
+ (match_operand:SI 2 "register_operand" "r"))
+ (match_operand:SI 3 "register_operand" "r")))]
+ ""
+ "*
+ if (REGNO (operands[0]) == REGNO (operands[1]))
+ return (arm_output_asm_insn (\"mla\\t%0, %2, %1, %3\", operands));
+ else
+ return (arm_output_asm_insn (\"mla\\t%0, %1, %2, %3\", operands));
+")
+
+(define_insn ""
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (plus:SI
+ (match_operand:SI 3 "register_operand" "r")
+ (mult:SI (match_operand:SI 1 "register_operand" "&r")
+ (match_operand:SI 2 "register_operand" "r"))))]
+ ""
+ "*
+ if (REGNO (operands[0]) == REGNO (operands[1]))
+ return (arm_output_asm_insn (\"mla\\t%0, %2, %1, %3\", operands));
+ else
+ return (arm_output_asm_insn (\"mla\\t%0, %1, %2, %3\", operands));
+")
+
+(define_insn "mulsf3"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+ (mult:SF (match_operand:SF 1 "register_operand" "f")
+ (match_operand:SF 2 "fpu_rhs_operand" "fG")))]
+ ""
+ "*return (arm_output_asm_insn (\"mufs\\t%0, %1, %2\", operands));")
+
+(define_insn "muldf3"
+ [(set (match_operand:DF 0 "register_operand" "=f")
+ (mult:DF (match_operand:DF 1 "register_operand" "f")
+ (match_operand:DF 2 "fpu_rhs_operand" "fG")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mufd\\t%0, %1, %2\", operands));
+")
+\f
+;; Division insns
+
+(define_insn "divsf3"
+ [(set (match_operand:SF 0 "register_operand" "=f,f")
+ (div:SF (match_operand:SF 1 "fpu_rhs_operand" "f,G")
+ (match_operand:SF 2 "fpu_rhs_operand" "fG,f")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"dvfs\\t%0, %1, %2\", operands));
+ case 1:
+ return (arm_output_asm_insn (\"rdfs\\t%0, %2, %1\", operands));
+ }
+")
+
+(define_insn "divdf3"
+ [(set (match_operand:DF 0 "register_operand" "=f,f")
+ (div:DF (match_operand:DF 1 "fpu_rhs_operand" "f,G")
+ (match_operand:DF 2 "fpu_rhs_operand" "fG,f")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"dvfd\\t%0, %1, %2\", operands));
+ case 1:
+ return (arm_output_asm_insn (\"rdfd\\t%0, %2, %1\", operands));
+ }
+")
+\f
+;; Modulo insns
+
+(define_insn "modsf3"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+ (mod:SF (match_operand:SF 1 "register_operand" "f")
+ (match_operand:SF 2 "fpu_rhs_operand" "fG")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"rmfs\\t%0, %1, %2\", operands));
+")
+
+(define_insn "moddf3"
+ [(set (match_operand:DF 0 "register_operand" "=f")
+ (mod:DF (match_operand:DF 1 "register_operand" "f")
+ (match_operand:DF 2 "fpu_rhs_operand" "fG")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"rmfd\\t%0, %1, %2\", operands));
+")
+\f
+;; Boolean and,ior,xor insns
+
+(define_insn "anddi3"
+ [(set (match_operand:DI 0 "di_operand" "=r")
+ (and:DI (match_operand:DI 1 "di_operand" "%r")
+ (match_operand:DI 2 "di_operand" "r")))]
+ ""
+ "*
+ arm_output_asm_insn (\"and\\t%0, %1, %2\", operands);
+ return (arm_output_asm_insn (\"and\\t%R0, %R1, %R2\", operands));
+")
+
+(define_insn "andsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (and:SI (match_operand:SI 1 "register_operand" "r")
+ (match_operand:SI 2 "arm_rhs_operand" "rI")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"and\\t%0, %1, %2\", operands));
+")
+
+(define_insn "andcbsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (and:SI (match_operand:SI 1 "register_operand" "r")
+ (not:SI (match_operand:SI 2 "arm_rhs_operand" "rI"))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bic\\t%0, %1, %2\", operands));
+")
+
+(define_insn "iordi3"
+ [(set (match_operand:DI 0 "di_operand" "=r")
+ (ior:DI (match_operand:DI 1 "di_operand" "%r")
+ (match_operand:DI 2 "di_operand" "r")))]
+ ""
+ "*
+ arm_output_asm_insn (\"orr\\t%0, %1, %2\", operands);
+ return (arm_output_asm_insn (\"orr\\t%R0, %R1, %R2\", operands));
+")
+
+(define_insn "iorsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r,r")
+ (ior:SI (match_operand:SI 1 "register_operand" "r,r")
+ (match_operand:SI 2 "nonmemory_operand" "r,n")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"orr\\t%0, %1, %2\", operands));
+ case 1:
+ return (output_multi_immediate (operands,
+ \"orr\\t%0, %1, %2\", \"orr\\t%0, %0, %2\",
+ 2, INTVAL (operands[2])));
+ }
+")
+
+(define_insn "xorsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r,r")
+ (xor:SI (match_operand:SI 1 "register_operand" "r,r")
+ (match_operand:SI 2 "nonmemory_operand" "r,n")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"eor\\t%0, %1, %2\", operands));
+ case 1:
+ return (output_multi_immediate (operands,
+ \"eor\\t%0, %1, %2\", \"eor\\t%0, %0, %2\",
+ 2, INTVAL (operands[2])));
+ }
+")
+\f
+;; Shift and rotation insns
+
+(define_insn "ashlsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (ashift:SI (match_operand:SI 1 "register_operand" "r")
+ (match_operand:SI 2 "general_operand" "rn")))]
+ ""
+ "*
+ return (output_shifted_move (ASHIFT, operands));
+")
+
+(define_insn "ashrsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (ashiftrt:SI (match_operand:SI 1 "register_operand" "r")
+ (match_operand:SI 2 "general_operand" "rn")))]
+ ""
+ "*
+ return (output_shifted_move (ASHIFTRT, operands));
+")
+
+;; lshlsi3 is not defined because shift counts cannot be negative
+;; An unnamed pattern is needed for expansion of zero_extend.
+
+(define_insn ""
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (lshift:SI (match_operand:SI 1 "register_operand" "r")
+ (match_operand:SI 2 "general_operand" "rn")))]
+ ""
+ "*
+ return (output_shifted_move (LSHIFT, operands));
+")
+
+(define_insn "lshrsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (lshiftrt:SI (match_operand:SI 1 "register_operand" "r")
+ (match_operand:SI 2 "general_operand" "rn")))]
+ ""
+ "*
+ return (output_shifted_move (LSHIFTRT, operands));
+")
+
+;; rotlsi3 is not defined yet to see what happens
+
+(define_insn "rotrsi3"
+ [(set (match_operand:SI 0 "register_operand" "=r,r")
+ (rotatert:SI (match_operand:SI 1 "register_operand" "r,r")
+ (match_operand:SI 2 "general_operand" "r,n")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"mov\\t%0, %1,ror %2\", operands));
+ case 1:
+ if (INTVAL(operands[2]) > 31)
+ operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[2]) % 32);
+ return (arm_output_asm_insn (\"mov\\t%0, %1,ror%2\", operands));
+ }
+")
+\f
+;; Unary arithmetic insns
+
+(define_insn "negdi2"
+ [(set (match_operand:DI 0 "di_operand" "=r")
+ (neg:DI (match_operand:DI 1 "di_operand" "r")))]
+ ""
+ "*
+ arm_output_asm_insn (\"rsb\\t%0, %1, #0\", operands);
+ return (arm_output_asm_insn (\"rsc\\t%R0, %R1, #0\", operands));
+")
+
+(define_insn "negsi2"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (neg:SI (match_operand:SI 1 "register_operand" "r")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"rsb\\t%0, %1, #0\", operands));
+")
+
+(define_insn "negsf2"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+ (neg:SF (match_operand:SF 1 "register_operand" "f")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mnfs\\t%0, %1\", operands));
+")
+
+(define_insn "negdf2"
+ [(set (match_operand:DF 0 "register_operand" "=f")
+ (neg:DF (match_operand:DF 1 "register_operand" "f")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mnfd\\t%0, %1\", operands));
+")
+
+(define_insn "abssf2"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+ (abs:SF (match_operand:SF 1 "register_operand" "f")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"abss\\t%0, %1\", operands));
+")
+
+(define_insn "absdf2"
+ [(set (match_operand:DF 0 "register_operand" "=f")
+ (abs:DF (match_operand:DF 1 "register_operand" "f")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"absd\\t%0, %1\", operands));
+")
+
+(define_insn "sqrtsf2"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+ (sqrt:SF (match_operand:SF 1 "register_operand" "f")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"sqts\\t%0, %1\", operands));
+")
+
+(define_insn "sqrtdf2"
+ [(set (match_operand:DF 0 "register_operand" "=f")
+ (sqrt:DF (match_operand:DF 1 "register_operand" "f")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"sqtd\\t%0, %1\", operands));
+")
+
+(define_insn "one_cmplsi2"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (not:SI (match_operand:SI 1 "register_operand" "r")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mvn\\t%0, %1\", operands));
+")
+\f
+;; Fixed <--> Floating conversion insns
+
+(define_insn "floatsisf2"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+ (float:SF (match_operand:SI 1 "register_operand" "r")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"flts\\t%0, %1\", operands));
+")
+
+(define_insn "floatsidf2"
+ [(set (match_operand:DF 0 "register_operand" "=f")
+ (float:DF (match_operand:SI 1 "register_operand" "r")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"fltd\\t%0, %1\", operands));
+")
+\f
+;; Truncation insns
+
+(define_insn "truncsiqi2"
+ [(set (match_operand:QI 0 "general_operand" "=mr")
+ (truncate:QI (match_operand:SI 1 "register_operand" "r")))]
+ ""
+ "*
+ if (GET_CODE (operands[0]) == MEM)
+ return (arm_output_asm_insn (\"strb\\t%1, %0\\t@ truncsiqi2\", operands));
+ else
+ return (arm_output_asm_insn (\"and\\t%0, %1, #255\\t@ truncsiqi2\", operands));
+")
+
+(define_insn "trunchiqi2"
+ [(set (match_operand:QI 0 "general_operand" "=mr")
+ (truncate:QI (match_operand:HI 1 "register_operand" "r")))]
+ ""
+ "*
+ if (GET_CODE(operands[0]) == MEM)
+ return (arm_output_asm_insn (\"strb\\t%1, %0\\t@ trunchiqi2\", operands));
+ else
+ return (arm_output_asm_insn (\"and\\t%0, %1, #255\\t@ trunchiqi2\", operands));
+")
+
+;; Mode is changed to SI below
+
+(define_expand "truncsihi2"
+ [(set (match_operand:SI 0 "register_operand" "")
+ (ashift:SI (match_operand:HI 1 "register_operand" "")
+ (const_int 16)))
+ (set (match_dup 0)
+ (ashiftrt:SI (match_dup 0) (const_int 16)))]
+ ""
+ "
+ if (GET_CODE (operands[1]) == SUBREG)
+ operands[1] = gen_rtx (SUBREG, SImode, SUBREG_REG (operands[1]),
+ SUBREG_WORD (operands[1]));
+ else
+ operands[1] = gen_rtx(SUBREG, SImode, operands[1], 0);
+")
+
+(define_insn "truncdfsf2"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+ (float_truncate:SF
+ (match_operand:DF 1 "register_operand" "f")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mvfs\\t%0, %1\", operands));
+")
+\f
+;; Zero extention instructions.
+
+(define_expand "zero_extendhisi2"
+ [(set (match_operand:SI 0 "register_operand" "")
+ (ashift:SI (match_operand:HI 1 "register_operand" "")
+ (const_int 16)))
+ (set (match_dup 0)
+ (lshiftrt:SI (match_dup 0) (const_int 16)))]
+ ""
+ "
+ if (GET_CODE (operands[1]) == SUBREG)
+ operands[1] = gen_rtx (SUBREG, SImode, SUBREG_REG (operands[1]),
+ SUBREG_WORD (operands[1]));
+ else
+ operands[1] = gen_rtx (SUBREG, SImode, operands[1], 0);
+")
+
+(define_insn "zero_extendqihi2"
+ [(set (match_operand:HI 0 "register_operand" "=r")
+ (zero_extend:HI
+ (match_operand:QI 1 "register_operand" "r")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"and\\t%0, %1, #255\\t@ zero_extendqihi2\", operands));
+")
+
+(define_insn "zero_extendqisi2"
+ [(set (match_operand:SI 0 "register_operand" "=r,r")
+ (zero_extend:SI
+ (match_operand:QI 1 "nonimmediate_operand" "r,m")))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"and\\t%0, %1, #255\\t@ zero_extendqisi2\", operands));
+ case 1:
+ return (arm_output_asm_insn (\"ldrb\\t%0, %1\\t@ zero_extendqisi2\", operands));
+ }
+")
+
+;; Note that the ones starting from HImode come before those for QImode so
+;; that a constant operand will match HImode, not QImode.
+
+(define_expand "extendhisi2"
+ [(set (match_operand:SI 0 "register_operand" "")
+ (ashift:SI (match_operand:HI 1 "register_operand" "")
+ (const_int 16)))
+ (set (match_dup 0)
+ (ashiftrt:SI (match_dup 0) (const_int 16)))]
+ ""
+ "
+ if (GET_CODE (operands[1]) == SUBREG)
+ operands[1] = gen_rtx (SUBREG, SImode, SUBREG_REG (operands[1]),
+ SUBREG_WORD (operands[1]));
+ else
+ operands[1] = gen_rtx (SUBREG, SImode, operands[1], 0);
+")
+
+;; XXX Is this ever used?
+
+(define_insn "extendqihi2"
+ [(set (match_operand:HI 0 "register_operand" "=r")
+ (sign_extend:SI
+ (match_operand:QI 1 "register_operand" "r")))]
+ ""
+ "*
+ arm_output_asm_insn (\"mov\\t%0, %1, lsl#24\\t@ extendqihi\", operands);
+ return (arm_output_asm_insn (\"mov\\t%0, %0, asr#24\", operands));
+")
+
+
+(define_expand "extendqisi2"
+ [(set (match_operand:SI 0 "register_operand" "")
+ (ashift:SI (match_operand:QI 1 "register_operand" "")
+ (const_int 24)))
+ (set (match_dup 0)
+ (ashiftrt:SI (match_dup 0) (const_int 24)))]
+ ""
+ "
+ if (GET_CODE (operands[1]) == SUBREG)
+ operands[1] = gen_rtx (SUBREG, SImode, SUBREG_REG (operands[1]),
+ SUBREG_WORD(operands[1]));
+ else
+ operands[1] = gen_rtx (SUBREG, SImode, operands[1], 0);
+")
+
+(define_insn "extendsfdf2"
+ [(set (match_operand:DF 0 "register_operand" "=f")
+ (float_extend:DF (match_operand:SF 1 "register_operand" "f")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mvfd\\t%0, %1\", operands));
+")
+\f
+;; Move insns (including loads and stores)
+
+;; XXX Just some ideas about movti.
+
+;;(define_expand "loadti"
+;; [(set (match_operand:TI 0 "register_operand" "")
+;; (mem:TI (match_operand:SI 1 "address_operand" "")))]
+;; "" "")
+
+;;(define_expand "storeti"
+;; [(set (mem:TI (match_operand:TI 0 "address_operand" ""))
+;; (match_operand:TI 1 "register_operand" ""))]
+;; "" "")
+
+;;(define_expand "movti"
+;; [(set (match_operand:TI 0 "general_operand" "")
+;; (match_operand:TI 1 "general_operand" ""))]
+;; ""
+;; "
+;;{
+;; rtx insn;
+;;
+;; if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)
+;; operands[1] = copy_to_reg (operands[1]);
+;; if (GET_CODE (operands[0]) == MEM)
+;; insn = gen_storeti (XEXP (operands[0], 0), operands[1]);
+;; else if (GET_CODE (operands[1]) == MEM)
+;; insn = gen_loadti (operands[0], XEXP (operands[1], 0));
+;; else
+;; FAIL;
+;;
+;; emit_insn (insn);
+;; DONE;
+;;}")
+
+;; Recognise garbage generated above.
+
+;;(define_insn ""
+;; [(set (match_operand:TI 0 "general_operand" "=r,r,r,<,>,m")
+;; (match_operand:TI 1 "general_operand" "<,>,m,r,r,r"))]
+;; ""
+;; "*
+;; {
+;; register mem = (which_alternative < 3);
+;; register char *template;
+;;
+;; operands[mem] = XEXP (operands[mem], 0);
+;; switch (which_alternative)
+;; {
+;; case 0: template = \"ldmdb\\t%1!, %M0\"; break;
+;; case 1: template = \"ldmia\\t%1!, %M0\"; break;
+;; case 2: template = \"ldmia\\t%1, %M0\"; break;
+;; case 3: template = \"stmdb\\t%0!, %M1\"; break;
+;; case 4: template = \"stmia\\t%0!, %M1\"; break;
+;; case 5: template = \"stmia\\t%0, %M1\"; break;
+;; }
+;; return (arm_output_asm_insn (template, operands));
+;; }")
+
+
+(define_insn "movdi"
+ [(set (match_operand:DI 0 "di_operand" "=r,r,r,o,r")
+ (match_operand:DI 1 "di_operand" "r,n,o,r,F"))]
+ ""
+ "*
+ return (output_move_double (operands));
+")
+
+(define_insn "movsi"
+ [(set (match_operand:SI 0 "general_operand" "=r,r,r,m")
+ (match_operand:SI 1 "general_operand" "r,n,m,r"))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"mov\\t%0, %1\", operands));
+ case 1:
+ return (output_mov_immediate (operands));
+ case 2:
+ if (GET_CODE (XEXP (operands[1], 0)) == SYMBOL_REF
+ && CONSTANT_POOL_ADDRESS_P (XEXP (operands[1], 0)))
+ return (arm_output_llc (operands));
+ else
+ return (arm_output_asm_insn (\"ldr\\t%0, %1\", operands));
+ case 3:
+ return (arm_output_asm_insn (\"str\\t%1, %0\", operands));
+ }
+")
+
+;; XXX The movhi stuff isn't as correct or as nice as it could be...
+
+;; Subroutine to load a half word into a register from memory.
+;; Operand 0 is the destination register (HImode).
+;; Operand 1 is the source address (SImode).
+;; Operand 2 is a temporary (SImode).
+
+;;(define_expand "loadhi"
+;; [;; load the whole word (ARM realigns it if not on word boundary)
+;; (set (match_operand:SI 2 "register_operand" "")
+;; (mem:SI (match_operand:SI 1 "address_operand" "")))
+;; ;; quietly forget the upper 16 bits
+;; (set (match_operand:HI 0 "register_operand" "")
+;; (subreg:HI (match_dup 2) 0))]
+;; ""
+;; ""
+;;)
+
+;; Load op0 from mem:op1. Subroutine in case we're reloading and the normal
+;; loadhi is not allowed.
+
+;;(define_expand "reloadhi"
+;; [(set (reg:SI 10)
+;; (mem:SI (match_operand:SI 1 "address_operand" "")))
+;; (set (match_operand:HI 0 "register_operand" "")
+;; (subreg:HI (reg:SI 10) 0))]
+;; "" "")
+
+;; Store op0 into mem:op1. Subroutine in case we're reloading and the normal
+;; storehi is not allowed.
+
+(define_expand "restorehi"
+ [(set (mem:QI (match_operand:SI 1 "address_operand" ""))
+ (truncate:QI (match_operand:HI 0 "register_operand" "")))
+ (set (reg:HI 10)
+ (ashiftrt:HI (match_dup 0) (const_int 8)))
+ (set (mem:QI (plus:SI (match_dup 1) (const_int 1)))
+ (truncate:QI (reg:HI 10)))]
+ "" "")
+
+;; Subroutine to store a half word from a register into memory.
+;; Operand 0 is the source register (HImode)
+;; Operand 1 is the destination address (SImode)
+;; Operand 2 is a temporary (SImode).
+;; Operand 3 is a temporary (SImode).
+;; Operand 4 is a temporary (SImode).
+;; Operand 5 is a local temporary (SImode).
+
+(define_expand "storehi"
+ [;; compute the address into a register
+ (set (match_operand:SI 2 "register_operand" "")
+ (match_operand:SI 1 "address_operand" ""))
+ ;; get the half word into a full word register
+ (set (match_operand:SI 3 "register_operand" "")
+ (match_dup 5))
+ ;; store the low byte
+ (set (mem:QI (match_dup 2))
+ (truncate:QI (match_dup 3)))
+ ;; extract the high byte
+ (set (match_operand:SI 4 "register_operand" "")
+ (ashiftrt:SI (match_dup 3) (const_int 8)))
+ ;; store the high byte
+ (set (mem:QI (plus (match_dup 2) (const_int 1)))
+ (truncate:QI (match_dup 4)))]
+ ""
+ "
+ if (GET_CODE(operands[0]) == SUBREG)
+ operands[5] = gen_rtx(SUBREG, SImode, SUBREG_REG(operands[0]),
+ SUBREG_WORD(operands[0]));
+ else
+ operands[5] = gen_rtx(SUBREG, SImode, operands[0], 0);
+
+")
+
+;; Subroutine to store a half word integer constant into memory.
+;; Operand 0 is the constant
+;; Operand 1 is the destination address (SImode)
+;; Operand 2 is a temporary (SImode).
+;; Operand 3 is a temporary (QImode).
+;; Operand 4 is a temporary (QImode).
+;; Operand 5 is a local CONST_INT.
+;; Operand 6 is a local CONST_INT.
+
+(define_expand "storeinthi"
+ [;; compute the address into a register
+ (set (match_operand:SI 2 "register_operand" "")
+ (match_operand:SI 1 "address_operand" ""))
+ ;; load the low byte
+ (set (match_operand:QI 3 "register_operand" "")
+ (match_dup 5))
+ ;; store the low byte
+ (set (mem:QI (match_dup 2))
+ (match_dup 3))
+ ;; load the high byte
+ (set (match_operand:QI 4 "register_operand" "")
+ (match_dup 6))
+ ;; store the high byte
+ (set (mem:QI (plus (match_dup 2) (const_int 1)))
+ (match_dup 4))]
+ ""
+ "
+ {
+ int value = INTVAL(operands[0]);
+
+ operands[5] = gen_rtx(CONST_INT, VOIDmode, value & 255);
+ operands[6] = gen_rtx(CONST_INT, VOIDmode,(value>>8) & 255);
+ }
+")
+
+(define_expand "movhi"
+ [(set (match_operand:HI 0 "general_operand" "")
+ (match_operand:HI 1 "general_operand" ""))]
+ ""
+ "
+{
+ rtx insn;
+
+ if (reload_in_progress || reload_completed)
+ {
+ if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == REG)
+ insn = gen_restorehi (operands[1], XEXP (operands[0], 0));
+ else
+ insn = gen_rtx (SET, VOIDmode, operands[0], operands[1]);
+ }
+ else
+ {
+ if (GET_CODE (operands[0]) == MEM)
+ {
+ if (GET_CODE (operands[1]) == MEM)
+ operands[1] = copy_to_reg (operands[1]);
+
+ if (GET_CODE (operands[1]) == CONST_INT)
+ {
+ insn = gen_storeinthi (operands[1], XEXP (operands[0], 0),
+ gen_reg_rtx (SImode),
+ gen_reg_rtx (QImode),
+ gen_reg_rtx (QImode));
+ }
+ else
+ {
+ insn = gen_storehi (operands[1], XEXP (operands[0], 0),
+ gen_reg_rtx (SImode),
+ gen_reg_rtx (SImode),
+ gen_reg_rtx (SImode));
+ }
+ }
+#if 0
+ else if (GET_CODE (operands[1]) == MEM)
+ {
+ insn = gen_loadhi (operands[0], XEXP (operands[1], 0),
+ gen_reg_rtx (SImode));
+ }
+#endif
+ else
+ insn = gen_rtx (SET, VOIDmode, operands[0], operands[1]);
+ }
+
+ emit_insn (insn);
+ DONE;
+}")
+
+;; Pattern to recognise insn generated default case above
+
+(define_insn ""
+ [(set (match_operand:HI 0 "general_operand" "=r,r,r,m")
+ (match_operand:HI 1 "general_operand" "r,n,m,r"))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0: return (arm_output_asm_insn (\"mov\\t%0, %1\\t@movhi\", operands));
+ case 1: return (output_mov_immediate (operands));
+ case 2: return (arm_output_asm_insn (\"ldr\\t%0, %1\\t@movhi\", operands));
+ case 3: return (arm_output_asm_insn (\"str\\t%1, %0\\t@movhi\", operands));
+ }
+")
+
+(define_insn "movqi"
+ [(set (match_operand:QI 0 "general_operand" "=r,r,r,m")
+ (match_operand:QI 1 "general_operand" "r,n,m,r"))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"mov\\t%0, %1\", operands));
+ case 1:
+ return (output_mov_immediate (operands));
+ case 2:
+ return (arm_output_asm_insn (\"ldrb\\t%0, %1\", operands));
+ case 3:
+ return (arm_output_asm_insn (\"strb\\t%1, %0\", operands));
+ }
+
+")
+
+(define_insn "movsf"
+ [(set (match_operand:SF 0 "general_operand" "=f,f,m,f,r,r")
+ (match_operand:SF 1 "general_operand" "fG,m,f,r,f,r"))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0:
+ return (arm_output_asm_insn (\"mvfs\\t%0, %1\", operands));
+ case 1:
+ return (arm_output_asm_insn (\"ldfs\\t%0, %1\", operands));
+ case 2:
+ return (arm_output_asm_insn (\"stfs\\t%1, %0\", operands));
+ case 3:
+ arm_output_asm_insn(\"stmfd\\tsp!, {%1}\", operands);
+ return (arm_output_asm_insn (\"ldfs\\t%0, [sp],#4\", operands));
+ case 4:
+ arm_output_asm_insn(\"stfs\\t%1, [sp,#-4]!\", operands);
+ return (arm_output_asm_insn (\"ldmfd\\tsp!, {%0}\", operands));
+ case 5:
+ return (arm_output_asm_insn (\"mov\\t%0, %1\", operands));
+ }
+")
+
+(define_insn "movdf"
+ [(set (match_operand:DF 0 "general_operand" "=f,f,m,f,r,r")
+ (match_operand:DF 1 "general_operand" "fG,m,f,r,f,r"))]
+ ""
+ "*
+ switch (which_alternative)
+ {
+ case 0: return (arm_output_asm_insn (\"mvfd\\t%0, %1\", operands));
+ case 1: return (arm_output_asm_insn (\"ldfd\\t%0, %1\", operands));
+ case 2: return (arm_output_asm_insn (\"stfd\\t%1, %0\", operands));
+ case 3: return (output_mov_double_fpu_from_arm (operands));
+ case 4: return (output_mov_double_arm_from_fpu (operands));
+ case 5: return (output_move_double (operands));
+ }
+")
+\f
+;; Comparison and test insns
+
+(define_insn "cmpsi"
+ [(set (cc0)
+ (compare (match_operand:SI 0 "register_operand" "r")
+ (match_operand:SI 1 "arm_rhs_operand" "rI")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"cmp\\t%0, %1\", operands));
+")
+
+(define_insn "tstsi"
+ [(set (cc0) (match_operand:SI 0 "register_operand" "r"))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"cmp\\t%0, #0\", operands));
+")
+
+(define_insn ""
+ [(set (cc0)
+ (compare (match_operand:SI 0 "register_operand" "r")
+ (neg:SI (match_operand:SI 1 "arm_rhs_operand" "rI"))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"cmn\\t%0, %1\", operands));
+")
+
+(define_insn "cmpsf"
+ [(set (cc0)
+ (compare (match_operand:SF 0 "register_operand" "f")
+ (match_operand:SF 1 "fpu_rhs_operand" "fG")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"cmf\\t%0, %1\", operands));
+")
+
+(define_insn "cmpdf"
+ [(set (cc0)
+ (compare (match_operand:DF 0 "register_operand" "f")
+ (match_operand:DF 1 "fpu_rhs_operand" "fG")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"cmf\\t%0, %1\", operands));
+")
+\f
+;; Conditional branch insns
+
+(define_insn "beq"
+ [(set (pc)
+ (if_then_else (eq (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"beq\\t%l0\", operands));
+")
+
+(define_insn "bne"
+ [(set (pc)
+ (if_then_else (ne (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bne\\t%l0\", operands));
+")
+
+(define_insn "bgt"
+ [(set (pc)
+ (if_then_else (gt (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bgt\\t%l0\", operands));
+")
+
+(define_insn "ble"
+ [(set (pc)
+ (if_then_else (le (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"ble\\t%l0\", operands));
+")
+
+(define_insn "bge"
+ [(set (pc)
+ (if_then_else (ge (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bge\\t%l0\", operands));
+")
+
+(define_insn "blt"
+ [(set (pc)
+ (if_then_else (lt (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"blt\\t%l0\", operands));
+")
+
+(define_insn "bgtu"
+ [(set (pc)
+ (if_then_else (gtu (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bhi\\t%l0\", operands));
+")
+
+(define_insn "bleu"
+ [(set (pc)
+ (if_then_else (leu (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bls\\t%l0\", operands));
+")
+
+(define_insn "bgeu"
+ [(set (pc)
+ (if_then_else (geu (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bhs\\t%l0\", operands));
+")
+
+(define_insn "bltu"
+ [(set (pc)
+ (if_then_else (ltu (cc0) (const_int 0))
+ (label_ref (match_operand 0 "" ""))
+ (pc)))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"blo\\t%l0\", operands));
+")
+\f
+;; Inverted conditional branch insns
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (eq (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bne\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (ne (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"beq\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (gt (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"ble\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (le (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bgt\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (ge (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"blt\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (lt (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bge\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (gtu (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bls\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (leu (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bhi\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (geu (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"blo\\t%l0\", operands));
+")
+
+(define_insn ""
+ [(set (pc)
+ (if_then_else (ltu (cc0) (const_int 0))
+ (pc)
+ (label_ref (match_operand 0 "" ""))))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"bhs\\t%l0\", operands));
+")
+\f
+;; Jump and linkage insns
+;; `return' is still a jump-to-epilogue...
+
+(define_insn "jump"
+ [(set (pc)
+ (label_ref (match_operand 0 "" "")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"b\\t%l0\", operands));
+")
+
+(define_insn "call"
+ [(call (match_operand 0 "memory_operand" "m")
+ (match_operand 1 "general_operand" "g"))
+ (clobber (reg:SI 14))]
+ ""
+ "*
+ return (output_call (operands));
+")
+
+(define_insn "call_value"
+ [(set (match_operand 0 "" "rf")
+ (call (match_operand 1 "memory_operand" "m")
+ (match_operand 2 "general_operand" "g")))
+ (clobber (reg:SI 14))]
+ ""
+ "*
+ return (output_call (&operands[1]));
+")
+
+;; Allow calls to SYMBOL_REFs specially as they are not valid general addresses
+;; The 'a' causes the operand to be treated as an address, i.e. no '#' output.
+
+(define_insn ""
+ [(call (mem:SI (match_operand:SI 0 "" "i"))
+ (match_operand:SI 1 "general_operand" "g"))
+ (clobber (reg:SI 14))]
+ "GET_CODE (operands[0]) == SYMBOL_REF"
+ "*
+ return (arm_output_asm_insn (\"bl\\t%a0\", operands));
+")
+
+(define_insn ""
+ [(set (match_operand 0 "register_operand" "=rf")
+ (call (mem:SI (match_operand:SI 1 "" "i"))
+ (match_operand:SI 2 "general_operand" "g")))
+ (clobber (reg:SI 14))]
+ "GET_CODE(operands[1]) == SYMBOL_REF"
+ "*
+ return (arm_output_asm_insn (\"bl\\t%a1\", operands));
+")
+
+(define_insn "tablejump"
+ [(set (pc)
+ (match_operand:SI 0 "register_operand" "r"))
+ (use (label_ref (match_operand 1 "" "")))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mov\\tpc, %0\\t@ table jump, label %l1\", operands));
+")
+
+(define_insn "indirect_jump"
+ [(set (pc)
+ (match_operand:SI 0 "register_operand" "r"))]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mov\\tpc, %0\\t@ indirect jump\", operands));
+")
+\f
+;; Misc insns
+
+(define_insn "nop"
+ [(const_int 0)]
+ ""
+ "*
+ return (arm_output_asm_insn (\"mov\\tr0, r0\\t@ nop\", operands));
+")
+\f
+;; Patterns to allow combination of arithmetic, cond code and shifts
+
+;(define_insn ""
+; [(set (match_operand:SI 0 "register_operand" "=r")
+; (match_operator:SI 1 "shiftable_operator"
+; [(match_operand:SI 2 "register_operand" "r")
+; (match_operator:SI 3 "shift_operator"
+; [(match_operand:SI 4 "register_operand" "r")
+; (match_operand:SI 5 "nonmemory_operand" "rn")])]))]
+; ""
+; "*
+; return (output_arithmetic_with_shift (operands, FALSE, FALSE));
+; "
+;)
+
+;(define_insn ""
+; [(set (match_operand:SI 0 "register_operand" "=r")
+; (match_operator:SI 1 "shiftable_operator"
+; [(match_operator:SI 3 "shift_operator"
+; [(match_operand:SI 4 "register_operand" "r")
+; (match_operand:SI 5 "nonmemory_operand" "rI")])
+; (match_operand:SI 2 "register_operand" "r")]))]
+; ""
+; "*
+; return (output_arithmetic_with_shift (operands, TRUE, FALSE));
+;")
+\f
+;; Patterns to allow combination of arithmetic and multiplication
+
+;(define_insn ""
+; [(set (match_operand:SI 0 "register_operand" "=r")
+; (match_operator:SI 1 "shiftable_operator"
+; [(match_operand:SI 2 "register_operand" "r")
+; (mult:SI
+; (match_operand:SI 3 "register_operand" "r")
+; (match_operand:SI 4 "power_of_two_operand" "n"))]))]
+; ""
+; "*
+; return (output_arithmetic_with_immediate_multiply (operands, FALSE));
+;")
+
+; Uncomment this to show combiner problem (see ../COMBINER-PROBLEM).
+;(define_insn ""
+; [(set (match_operand:SI 0 "register_operand" "=r")
+; (match_operator:SI 1 "shiftable_operator"
+; [(mult:SI
+; (match_operand:SI 3 "register_operand" "r")
+; (match_operand:SI 4 "power_of_two_operand" "n"))
+; (match_operand:SI 2 "register_operand" "r")]))]
+; ""
+; "*
+; return (output_arithmetic_with_immediate_multiply (operands, TRUE));
+;")
+\f
+;; Peephole optimizations.
+
+;; When testing a bitset smaller than 9 bits for (un)equality, a
+;; shift/and/cmp/b{eq,ne} sequence can be replaced by one tst and the same
+;; branch sequence.
+
+;;(define_peephole
+;; [(set (match_operand:SI 0 "register_operand" "=r")
+;; (lshiftrt:SI (match_dup 0)
+;; (match_operand 1 "immediate_operand" "")))
+;; (set (match_dup 0)
+;; (and:SI (match_dup 0)
+;; (match_operand 2 "immediate_operand" "")))
+;; (set (cc0) (match_dup 0))
+;; (set (pc)
+;; (if_then_else (ne (cc0) (const_int 0))
+;; (label_ref (match_operand 3 "" ""))
+;; (pc)))]
+;; "dead_or_set_p (PREV_INSN (insn), operands[0])
+;; && GET_CODE (operands[2]) == CONST_INT && GET_CODE (operands[1]) == CONST_INT
+;; && const_ok_for_arm (INTVAL (operands[2]) << INTVAL (operands[1]))"
+;; "*
+;; operands[2] = gen_rtx (CONST_INT, VOIDmode,
+;; INTVAL (operands[2]) << INTVAL (operands[1]));
+;; arm_output_asm_insn (\"tst\\t%0, %2\\t\\t@ ph test bitfield\", operands);
+;; return (arm_output_asm_insn (\"bne\\t%l3\", operands));
+;;")
+
+;;(define_peephole
+;; [(set (match_operand:SI 0 "register_operand" "=r")
+;; (lshiftrt:SI (match_dup 0)
+;; (match_operand 1 "immediate_operand" "")))
+;; (set (match_dup 0)
+;; (and:SI (match_dup 0)
+;; (match_operand 2 "immediate_operand" "")))
+;; (set (cc0) (match_dup 0))
+;; (set (pc)
+;; (if_then_else (ne (cc0) (const_int 0))
+;; (pc)
+;; (label_ref (match_operand 3 "" ""))))]
+;; "dead_or_set_p (prev_real_insn (insn), operands[0])
+;; && GET_CODE (operands[2]) == CONST_INT && GET_CODE (operands[1]) == CONST_INT
+;; && const_ok_for_arm (INTVAL (operands[2]) << INTVAL (operands[1]))"
+;; "*
+;; operands[2] = gen_rtx (CONST_INT, VOIDmode,
+;; INTVAL (operands[2]) << INTVAL (operands[1]));
+;; arm_output_asm_insn (\"tst\\t%0, %2\\t\\t@ ph test bitfield\", operands);
+;; return (arm_output_asm_insn (\"beq\\t%l3\", operands));
+;;")
+
+;; This allows negative constants to be compared since GCC appears not to try
+;; converting them with a NEG.
+
+;;(define_peephole
+;; [(set (match_operand:SI 2 "register_operand" "=r")
+;; (match_operand:SI 1 "immediate_operand" "n"))
+;; (set (cc0)
+;; (compare (match_operand:SI 0 "register_operand" "r")
+;; (match_dup 1)))]
+;; "const_ok_for_arm (-INTVAL (operands[1]))
+;; && dead_or_set_p (prev_real_insn (insn), operands[0])"
+;; "*
+;; operands[1] = gen_rtx (CONST_INT, VOIDmode, -INTVAL (operands[1]));
+;; return (arm_output_asm_insn (\"cmn\\t%0, %1\\t\\t@ ph negate comparison\", operands));
+;;")
+\f
+;; Local variables:
+;; mode:emacs-lisp
+;; eval: (setq comment-start ";; ")
+;; eval: (setq comment-end "")
+;; eval: (setq comment-start-skip ";;+ *")
+;; 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:
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