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-;; Constraint definitions for ARM and Thumb
-;; Copyright (C) 2006 Free Software Foundation, Inc.
-;; Contributed by ARM Ltd.
-
-;; This file is part of GCC.
-
-;; GCC is free software; you can redistribute it and/or modify it
-;; under the terms of the GNU General Public License as published
-;; by the Free Software Foundation; either version 2, or (at your
-;; option) any later version.
-
-;; GCC is distributed in the hope that it will be useful, but WITHOUT
-;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
-;; License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GCC; see the file COPYING.  If not, write to
-;; the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;; APPLE LOCAL begin v7 support. Merge from mainline
-;; The following register constraints have been used:
-;; - in ARM/Thumb-2 state: f, t, v, w, x, y, z
-;; - in Thumb state: h, k, b
-;; - in both states: l, c
-;; In ARM state, 'l' is an alias for 'r'
-
-;; The following normal constraints have been used:
-;; in ARM/Thumb-2 state: G, H, I, J, K, L, M
-;; in Thumb-1 state: I, J, K, L, M, N, O
-;; APPLE LOCAL end v7 support. Merge from mainline
-
-;; APPLE LOCAL begin v7 support. Merge from Codesourcery
-;; The following multi-letter normal constraints have been used:
-;; APPLE LOCAL 5831562 long long constants
-;; in ARM/Thumb-2 state: Da, Db, Dc, Dd, Dn, Dl, DL, Dv
-
-;; The following memory constraints have been used:
-;; in ARM/Thumb-2 state: Q, Ut, Uv, Uy, Un, Us
-;; in ARM state: Uq
-;; APPLE LOCAL end v7 support. Merge from Codesourcery
-
-
-(define_register_constraint "f" "TARGET_ARM ? FPA_REGS : NO_REGS"
- "Legacy FPA registers @code{f0}-@code{f7}.")
-
-;; APPLE LOCAL begin v7 support. Merge from mainline
-(define_register_constraint "t" "TARGET_32BIT ? VFP_LO_REGS : NO_REGS"
- "The VFP registers @code{s0}-@code{s31}.")
-
-;; APPLE LOCAL end v7 support. Merge from mainline
-(define_register_constraint "v" "TARGET_ARM ? CIRRUS_REGS : NO_REGS"
- "The Cirrus Maverick co-processor registers.")
-
-;; APPLE LOCAL begin v7 support. Merge from mainline
-(define_register_constraint "w"
-  "TARGET_32BIT ? (TARGET_VFP3 ? VFP_REGS : VFP_LO_REGS) : NO_REGS"
- "The VFP registers @code{d0}-@code{d15}, or @code{d0}-@code{d31} for VFPv3.")
-
-(define_register_constraint "x" "TARGET_32BIT ? VFP_D0_D7_REGS : NO_REGS"
- "The VFP registers @code{d0}-@code{d7}.")
-
-;; APPLE LOCAL end v7 support. Merge from mainline
-(define_register_constraint "y" "TARGET_REALLY_IWMMXT ? IWMMXT_REGS : NO_REGS"
- "The Intel iWMMX co-processor registers.")
-
-(define_register_constraint "z"
- "TARGET_REALLY_IWMMXT ? IWMMXT_GR_REGS : NO_REGS"
- "The Intel iWMMX GR registers.")
-
-(define_register_constraint "l" "TARGET_THUMB ? LO_REGS : GENERAL_REGS"
- "In Thumb state the core registers @code{r0}-@code{r7}.")
-
-(define_register_constraint "h" "TARGET_THUMB ? HI_REGS : NO_REGS"
- "In Thumb state the core registers @code{r8}-@code{r15}.")
-
-(define_register_constraint "k" "TARGET_THUMB ? STACK_REG : NO_REGS"
- "@internal
-  Thumb only.  The stack register.")
-
-(define_register_constraint "b" "TARGET_THUMB ? BASE_REGS : NO_REGS"
- "@internal
-  Thumb only.  The union of the low registers and the stack register.")
-
-(define_register_constraint "c" "CC_REG"
- "@internal The condition code register.")
-
-;; APPLE LOCAL begin v7 support. Merge from mainline
-(define_constraint "I"
- "In ARM/Thumb-2 state a constant that can be used as an immediate value in a
-  Data Processing instruction.  In Thumb-1 state a constant in the range
-  0-255."
- (and (match_code "const_int")
-      (match_test "TARGET_32BIT ? const_ok_for_arm (ival)
-		   : ival >= 0 && ival <= 255")))
-
-(define_constraint "J"
- "In ARM/Thumb-2 state a constant in the range @minus{}4095-4095.  In Thumb-1
-  state a constant in the range @minus{}255-@minus{}1."
- (and (match_code "const_int")
-      (match_test "TARGET_32BIT ? (ival >= -4095 && ival <= 4095)
-		   : (ival >= -255 && ival <= -1)")))
-
-(define_constraint "K"
- "In ARM/Thumb-2 state a constant that satisfies the @code{I} constraint if
-  inverted.  In Thumb-1 state a constant that satisfies the @code{I}
-  constraint multiplied by any power of 2."
- (and (match_code "const_int")
-      (match_test "TARGET_32BIT ? const_ok_for_arm (~ival)
-		   : thumb_shiftable_const (ival)")))
-
-(define_constraint "L"
- "In ARM/Thumb-2 state a constant that satisfies the @code{I} constraint if
-  negated.  In Thumb-1 state a constant in the range @minus{}7-7."
- (and (match_code "const_int")
-      (match_test "TARGET_32BIT ? const_ok_for_arm (-ival)
-		   : (ival >= -7 && ival <= 7)")))
-
-;; The ARM state version is internal...
-;; @internal In ARM/Thumb-2 state a constant in the range 0-32 or any
-;; power of 2.
-(define_constraint "M"
- "In Thumb-1 state a constant that is a multiple of 4 in the range 0-1020."
- (and (match_code "const_int")
-      (match_test "TARGET_32BIT ? ((ival >= 0 && ival <= 32)
-				 || ((ival & (ival - 1)) == 0))
-		   : ((ival >= 0 && ival <= 1020) && ((ival & 3) == 0))")))
-
-(define_constraint "N"
- "In ARM/Thumb-2 state a constant suitable for a MOVW instruction.
-  In Thumb-1 state a constant in the range 0-31."
- (and (match_code "const_int")
-      (match_test "TARGET_32BIT ? arm_arch_thumb2 && ((ival & 0xffff0000) == 0)
-				: (ival >= 0 && ival <= 31)")))
-
-(define_constraint "O"
- "In Thumb-1 state a constant that is a multiple of 4 in the range
-  @minus{}508-508."
- (and (match_code "const_int")
-      (match_test "TARGET_THUMB1 && ival >= -508 && ival <= 508
-		   && ((ival & 3) == 0)")))
-
-(define_constraint "G"
- "In ARM/Thumb-2 state a valid FPA immediate constant."
- (and (match_code "const_double")
-      (match_test "TARGET_32BIT && arm_const_double_rtx (op)")))
-
-(define_constraint "H"
- "In ARM/Thumb-2 state a valid FPA immediate constant when negated."
- (and (match_code "const_double")
-      (match_test "TARGET_32BIT && neg_const_double_rtx_ok_for_fpa (op)")))
-
-(define_constraint "Da"
- "@internal
-  In ARM/Thumb-2 state a const_int, const_double or const_vector that can
-  be generated with two Data Processing insns."
- (and (match_code "const_double,const_int,const_vector")
-      (match_test "TARGET_32BIT && arm_const_double_inline_cost (op) == 2")))
-
-(define_constraint "Db"
- "@internal
-  In ARM/Thumb-2 state a const_int, const_double or const_vector that can
-  be generated with three Data Processing insns."
- (and (match_code "const_double,const_int,const_vector")
-      (match_test "TARGET_32BIT && arm_const_double_inline_cost (op) == 3")))
-
-(define_constraint "Dc"
- "@internal
-  In ARM/Thumb-2 state a const_int, const_double or const_vector that can
-  be generated with four Data Processing insns.  This pattern is disabled
-  if optimizing for space or when we have load-delay slots to fill."
- (and (match_code "const_double,const_int,const_vector")
-      (match_test "TARGET_32BIT && arm_const_double_inline_cost (op) == 4
-		   && !(optimize_size || arm_ld_sched)")))
-;; APPLE LOCAL begin 5831562 long long constants
-(define_constraint "Dd"
- "@internal
-  In ARM state a const_int, const_double or const_vector that can
-  used directly in arithmetic instructions as two 32-bit immediates."
- (and (match_code "const_double,const_int,const_vector")
-      (match_test "TARGET_32BIT && const64_ok_for_arm_immediate (op)")))
-;; APPLE LOCAL end 5831562 long long constants
-;; APPLE LOCAL end v7 support. Merge from mainline
-
-;; APPLE LOCAL begin v7 support. Merge from Codesourcery
-(define_constraint "Dn"
- "@internal
-  In ARM/Thumb-2 state a const_vector which can be loaded with a Neon vmov
-  immediate instruction."
- (and (match_code "const_vector")
-      (match_test "TARGET_32BIT
-		   && imm_for_neon_mov_operand (op, GET_MODE (op))")))
-
-(define_constraint "Dl"
- "@internal
-  In ARM/Thumb-2 state a const_vector which can be used with a Neon vorr or
-  vbic instruction."
- (and (match_code "const_vector")
-      (match_test "TARGET_32BIT
-		   && imm_for_neon_logic_operand (op, GET_MODE (op))")))
-
-(define_constraint "DL"
- "@internal
-  In ARM/Thumb-2 state a const_vector which can be used with a Neon vorn or
-  vand instruction."
- (and (match_code "const_vector")
-      (match_test "TARGET_32BIT
-		   && imm_for_neon_inv_logic_operand (op, GET_MODE (op))")))
-;; APPLE LOCAL end v7 support. Merge from Codesourcery
-;; APPLE LOCAL begin v7 support. Merge from mainline
-
-(define_constraint "Dv"
- "@internal
-  In ARM/Thumb-2 state a const_double which can be used with a VFP fconsts
-  or fconstd instruction."
- (and (match_code "const_double")
-      (match_test "TARGET_32BIT && vfp3_const_double_rtx (op)")))
-;; APPLE LOCAL end v7 support. Merge from mainline
-;; APPLE LOCAL begin v7 support. Merge from Codesourcery
-
-(define_memory_constraint "Ut"
- "@internal
-  In ARM/Thumb-2 state an address valid for loading/storing opaque structure
-  types wider than TImode."
- (and (match_code "mem")
-      (match_test "TARGET_32BIT && neon_struct_mem_operand (op)")))
-;; APPLE LOCAL end v7 support. Merge from Codesourcery
-
-;; APPLE LOCAL begin v7 support. Merge from mainline
-(define_memory_constraint "Uv"
- "@internal
-  In ARM/Thumb-2 state a valid VFP load/store address."
- (and (match_code "mem")
-      (match_test "TARGET_32BIT && arm_coproc_mem_operand (op, FALSE)")))
-
-(define_memory_constraint "Uy"
- "@internal
-  In ARM/Thumb-2 state a valid iWMMX load/store address."
- (and (match_code "mem")
-      (match_test "TARGET_32BIT && arm_coproc_mem_operand (op, TRUE)")))
-;; APPLE LOCAL end v7 support. Merge from mainline
-
-;; APPLE LOCAL begin v7 support. Merge from Codesourcery
-(define_memory_constraint "Un"
- "@internal
-  In ARM/Thumb-2 state a valid address for Neon element and structure
-  load/store instructions."
- (and (match_code "mem")
-      (match_test "TARGET_32BIT && neon_vector_mem_operand (op, FALSE)")))
-
-(define_memory_constraint "Us"
- "@internal
-  In ARM/Thumb-2 state a valid address for non-offset loads/stores of
-  quad-word values in four ARM registers."
- (and (match_code "mem")
-      (match_test "TARGET_32BIT && neon_vector_mem_operand (op, TRUE)")))
-;; APPLE LOCAL end v7 support. Merge from Codesourcery
-
-(define_memory_constraint "Uq"
- "@internal
-  In ARM state an address valid in ldrsb instructions."
- (and (match_code "mem")
-      (match_test "TARGET_ARM
-		   && arm_legitimate_address_p (GET_MODE (op), XEXP (op, 0),
-						SIGN_EXTEND, 0)")))
-
-;; APPLE LOCAL begin v7 support. Merge from mainline
-(define_memory_constraint "Q"
- "@internal
-  In ARM/Thumb-2 state an address that is a single base register."
- (and (match_code "mem")
-      (match_test "REG_P (XEXP (op, 0))")))
-;; APPLE LOCAL end v7 support. Merge from mainline
-
-;; We used to have constraint letters for S and R in ARM state, but
-;; all uses of these now appear to have been removed.
-
-;; Additionally, we used to have a Q constraint in Thumb state, but
-;; this wasn't really a valid memory constraint.  Again, all uses of
-;; this now seem to have been removed.