[arm] Implement non-GE-setting SIMD32 intrinsics

[thirdparty/gcc.git] / gcc / config / arm / iterators.md

;; Code and mode itertator and attribute definitions for the ARM backend
;; Copyright (C) 2010-2019 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 3, 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 COPYING3.  If not see
;; <http://www.gnu.org/licenses/>.


;;----------------------------------------------------------------------------
;; Mode iterators
;;----------------------------------------------------------------------------

;; A list of modes that are exactly 64 bits in size. This is used to expand
;; some splits that are the same for all modes when operating on ARM
;; registers.
(define_mode_iterator ANY64 [DI DF V8QI V4HI V4HF V2SI V2SF])

(define_mode_iterator ANY128 [V2DI V2DF V16QI V8HI V4SI V4SF])

;; A list of integer modes that are up to one word long
(define_mode_iterator QHSI [QI HI SI])

;; A list of integer modes that are half and one word long
(define_mode_iterator HSI [HI SI])

;; A list of integer modes that are less than a word
(define_mode_iterator NARROW [QI HI])

;; A list of all the integer modes up to 64bit
(define_mode_iterator QHSD [QI HI SI DI])

;; A list of the 32bit and 64bit integer modes
(define_mode_iterator SIDI [SI DI])

;; A list of atomic compare and swap success return modes
(define_mode_iterator CCSI [(CC_Z "TARGET_32BIT") (SI "TARGET_THUMB1")])

;; A list of modes which the VFP unit can handle
(define_mode_iterator SDF [(SF "") (DF "TARGET_VFP_DOUBLE")])

;; Integer element sizes implemented by IWMMXT.
(define_mode_iterator VMMX [V2SI V4HI V8QI])

(define_mode_iterator VMMX2 [V4HI V2SI])

;; Integer element sizes for shifts.
(define_mode_iterator VSHFT [V4HI V2SI DI])

;; Integer and float modes supported by Neon and IWMMXT.
(define_mode_iterator VALL [V2DI V2SI V4HI V8QI V2SF V4SI V8HI V16QI V4SF])

;; Integer and float modes supported by Neon and IWMMXT, except V2DI.
(define_mode_iterator VALLW [V2SI V4HI V8QI V2SF V4SI V8HI V16QI V4SF])

;; Integer modes supported by Neon and IWMMXT
(define_mode_iterator VINT [V2DI V2SI V4HI V8QI V4SI V8HI V16QI])

;; Integer modes supported by Neon and IWMMXT, except V2DI
(define_mode_iterator VINTW [V2SI V4HI V8QI V4SI V8HI V16QI])

;; Double-width vector modes, on which we support arithmetic (no HF!)
(define_mode_iterator VD [V8QI V4HI V2SI V2SF])

;; Double-width vector modes plus 64-bit elements for vreinterpret + vcreate.
(define_mode_iterator VD_RE [V8QI V4HI V2SI V2SF DI])

;; Double-width vector modes plus 64-bit elements.
(define_mode_iterator VDX [V8QI V4HI V4HF V2SI V2SF DI])

;; Double-width vector modes, with V4HF - for vldN_lane and vstN_lane.
(define_mode_iterator VD_LANE [V8QI V4HI V4HF V2SI V2SF])

;; Double-width vector modes without floating-point elements.
(define_mode_iterator VDI [V8QI V4HI V2SI])

;; Quad-width vector modes supporting arithmetic (no HF!).
(define_mode_iterator VQ [V16QI V8HI V4SI V4SF])

;; Quad-width vector modes, including V8HF.
(define_mode_iterator VQ2 [V16QI V8HI V8HF V4SI V4SF])

;; Quad-width vector modes with 16- or 32-bit elements
(define_mode_iterator VQ_HS [V8HI V8HF V4SI V4SF])

;; Quad-width vector modes plus 64-bit elements.
(define_mode_iterator VQX [V16QI V8HI V8HF V4SI V4SF V2DI])

;; Quad-width vector modes without floating-point elements.
(define_mode_iterator VQI [V16QI V8HI V4SI])

;; Quad-width vector modes, with TImode added, for moves.
(define_mode_iterator VQXMOV [V16QI V8HI V8HF V4SI V4SF V2DI TI])

;; Opaque structure types wider than TImode.
(define_mode_iterator VSTRUCT [EI OI CI XI])

;; Opaque structure types used in table lookups (except vtbl1/vtbx1).
(define_mode_iterator VTAB [TI EI OI])

;; Widenable modes.
(define_mode_iterator VW [V8QI V4HI V2SI])

;; Narrowable modes.
(define_mode_iterator VN [V8HI V4SI V2DI])

;; All supported vector modes (except singleton DImode).
(define_mode_iterator VDQ [V8QI V16QI V4HI V8HI V2SI V4SI V4HF V8HF V2SF V4SF V2DI])

;; All supported floating-point vector modes (except V2DF).
(define_mode_iterator VF [(V4HF "TARGET_NEON_FP16INST")
			   (V8HF "TARGET_NEON_FP16INST") V2SF V4SF])

;; Double vector modes.
(define_mode_iterator VDF [V2SF V4HF])

;; Quad vector Float modes with half/single elements.
(define_mode_iterator VQ_HSF [V8HF V4SF])


;; All supported vector modes (except those with 64-bit integer elements).
(define_mode_iterator VDQW [V8QI V16QI V4HI V8HI V2SI V4SI V2SF V4SF])

;; All supported vector modes including 16-bit float modes.
(define_mode_iterator VDQWH [V8QI V16QI V4HI V8HI V2SI V4SI V2SF V4SF
			     V8HF V4HF])

;; Supported integer vector modes (not 64 bit elements).
(define_mode_iterator VDQIW [V8QI V16QI V4HI V8HI V2SI V4SI])

;; Supported integer vector modes (not singleton DI)
(define_mode_iterator VDQI [V8QI V16QI V4HI V8HI V2SI V4SI V2DI])

;; Vector modes, including 64-bit integer elements.
(define_mode_iterator VDQX [V8QI V16QI V4HI V8HI V2SI V4SI
			    V4HF V8HF V2SF V4SF DI V2DI])

;; Vector modes including 64-bit integer elements, but no floats.
(define_mode_iterator VDQIX [V8QI V16QI V4HI V8HI V2SI V4SI DI V2DI])

;; Vector modes for H, S and D types.
(define_mode_iterator VDQHSD [V4HI V8HI V2SI V4SI V2DI])

;; Vector modes for float->int conversions.
(define_mode_iterator VCVTF [V2SF V4SF])

;; Vector modes form int->float conversions.
(define_mode_iterator VCVTI [V2SI V4SI])

;; Vector modes for int->half conversions.
(define_mode_iterator VCVTHI [V4HI V8HI])

;; Vector modes for doubleword multiply-accumulate, etc. insns.
(define_mode_iterator VMD [V4HI V2SI V2SF])

;; Vector modes for quadword multiply-accumulate, etc. insns.
(define_mode_iterator VMQ [V8HI V4SI V4SF])

;; Above modes combined.
(define_mode_iterator VMDQ [V4HI V2SI V2SF V8HI V4SI V4SF])

;; As VMD, but integer modes only.
(define_mode_iterator VMDI [V4HI V2SI])

;; As VMQ, but integer modes only.
(define_mode_iterator VMQI [V8HI V4SI])

;; Above modes combined.
(define_mode_iterator VMDQI [V4HI V2SI V8HI V4SI])

;; Modes with 8-bit and 16-bit elements.
(define_mode_iterator VX [V8QI V4HI V16QI V8HI])

;; Modes with 8-bit elements.
(define_mode_iterator VE [V8QI V16QI])

;; V2DI only (for use with @ patterns).
(define_mode_iterator V2DI_ONLY [V2DI])

;; Modes with 64-bit elements only.
(define_mode_iterator V64 [DI V2DI])

;; Modes with 32-bit elements only.
(define_mode_iterator V32 [V2SI V2SF V4SI V4SF])

;; Modes with 8-bit, 16-bit and 32-bit elements.
(define_mode_iterator VU [V16QI V8HI V4SI])

;; Vector modes for 16-bit floating-point support.
(define_mode_iterator VH [V8HF V4HF])

;; Iterators used for fixed-point support.
(define_mode_iterator FIXED [QQ HQ SQ UQQ UHQ USQ HA SA UHA USA])

(define_mode_iterator ADDSUB [V4QQ V2HQ V2HA])

(define_mode_iterator UQADDSUB [V4UQQ V2UHQ UQQ UHQ V2UHA UHA])

(define_mode_iterator QADDSUB [V4QQ V2HQ QQ HQ V2HA HA SQ SA])

(define_mode_iterator QMUL [HQ HA])

;; Modes for polynomial or float values.
(define_mode_iterator VPF [V8QI V16QI V2SF V4SF])

;;----------------------------------------------------------------------------
;; Code iterators
;;----------------------------------------------------------------------------

;; A list of condition codes used in compare instructions where
;; the carry flag from the addition is used instead of doing the
;; compare a second time.
(define_code_iterator LTUGEU [ltu geu])

;; The signed gt, ge comparisons
(define_code_iterator GTGE [gt ge])

;; The signed gt, ge, lt, le comparisons
(define_code_iterator GLTE [gt ge lt le])

;; The unsigned gt, ge comparisons
(define_code_iterator GTUGEU [gtu geu])

;; Comparisons for vc<cmp>
(define_code_iterator COMPARISONS [eq gt ge le lt])

;; A list of ...
(define_code_iterator IOR_XOR [ior xor])

(define_code_iterator LOGICAL [and ior xor])

;; Operations on two halves of a quadword vector.
(define_code_iterator VQH_OPS [plus smin smax umin umax])

;; Operations on two halves of a quadword vector,
;; without unsigned variants (for use with *SFmode pattern).
(define_code_iterator VQHS_OPS [plus smin smax])

;; A list of widening operators
(define_code_iterator SE [sign_extend zero_extend])

;; Right shifts
(define_code_iterator RSHIFTS [ashiftrt lshiftrt])

;; Iterator for integer conversions
(define_code_iterator FIXUORS [fix unsigned_fix])

;; Binary operators whose second operand can be shifted.
(define_code_iterator SHIFTABLE_OPS [plus minus ior xor and])

;; Operations on the sign of a number.
(define_code_iterator ABSNEG [abs neg])

;; The PLUS and MINUS operators.
(define_code_iterator PLUSMINUS [plus minus])

;; Conversions.
(define_code_iterator FCVT [unsigned_float float])

;; plus and minus are the only SHIFTABLE_OPS for which Thumb2 allows
;; a stack pointer opoerand.  The minus operation is a candidate for an rsub
;; and hence only plus is supported.
(define_code_attr t2_binop0
  [(plus "rk") (minus "r") (ior "r") (xor "r") (and "r")])

;; The instruction to use when a SHIFTABLE_OPS has a shift operation as
;; its first operand.
(define_code_attr arith_shift_insn
  [(plus "add") (minus "rsb") (ior "orr") (xor "eor") (and "and")])

(define_code_attr cmp_op [(eq "eq") (gt "gt") (ge "ge") (lt "lt") (le "le")
                          (gtu "gt") (geu "ge")])

(define_code_attr cmp_type [(eq "i") (gt "s") (ge "s") (lt "s") (le "s")])

(define_code_attr vfml_op [(plus "a") (minus "s")])

;;----------------------------------------------------------------------------
;; Int iterators
;;----------------------------------------------------------------------------

(define_int_iterator VRINT [UNSPEC_VRINTZ UNSPEC_VRINTP UNSPEC_VRINTM
                            UNSPEC_VRINTR UNSPEC_VRINTX UNSPEC_VRINTA])

(define_int_iterator NEON_VCMP [UNSPEC_VCEQ UNSPEC_VCGT UNSPEC_VCGE
				UNSPEC_VCLT UNSPEC_VCLE])

(define_int_iterator NEON_VACMP [UNSPEC_VCAGE UNSPEC_VCAGT])

(define_int_iterator NEON_VAGLTE [UNSPEC_VCAGE UNSPEC_VCAGT
				  UNSPEC_VCALE UNSPEC_VCALT])

(define_int_iterator VCVT [UNSPEC_VRINTP UNSPEC_VRINTM UNSPEC_VRINTA])

(define_int_iterator NEON_VRINT [UNSPEC_NVRINTP UNSPEC_NVRINTZ UNSPEC_NVRINTM
                              UNSPEC_NVRINTX UNSPEC_NVRINTA UNSPEC_NVRINTN])

(define_int_iterator NEON_VCVT [UNSPEC_NVRINTP UNSPEC_NVRINTM UNSPEC_NVRINTA])

(define_int_iterator VADDL [UNSPEC_VADDL_S UNSPEC_VADDL_U])

(define_int_iterator VADDW [UNSPEC_VADDW_S UNSPEC_VADDW_U])

(define_int_iterator VHADD [UNSPEC_VRHADD_S UNSPEC_VRHADD_U
			    UNSPEC_VHADD_S UNSPEC_VHADD_U])

(define_int_iterator VQADD [UNSPEC_VQADD_S UNSPEC_VQADD_U])

(define_int_iterator VADDHN [UNSPEC_VADDHN UNSPEC_VRADDHN])

(define_int_iterator VMLAL [UNSPEC_VMLAL_S UNSPEC_VMLAL_U])

(define_int_iterator VMLAL_LANE [UNSPEC_VMLAL_S_LANE UNSPEC_VMLAL_U_LANE])

(define_int_iterator VMLSL [UNSPEC_VMLSL_S UNSPEC_VMLSL_U])

(define_int_iterator VMLSL_LANE [UNSPEC_VMLSL_S_LANE UNSPEC_VMLSL_U_LANE])

(define_int_iterator VQDMULH [UNSPEC_VQDMULH UNSPEC_VQRDMULH])

(define_int_iterator VQDMULH_LANE [UNSPEC_VQDMULH_LANE UNSPEC_VQRDMULH_LANE])

(define_int_iterator VMULL [UNSPEC_VMULL_S UNSPEC_VMULL_U UNSPEC_VMULL_P])

(define_int_iterator VMULL_LANE [UNSPEC_VMULL_S_LANE UNSPEC_VMULL_U_LANE])

(define_int_iterator VSUBL [UNSPEC_VSUBL_S UNSPEC_VSUBL_U])

(define_int_iterator VSUBW [UNSPEC_VSUBW_S UNSPEC_VSUBW_U])

(define_int_iterator VHSUB [UNSPEC_VHSUB_S UNSPEC_VHSUB_U])

(define_int_iterator VQSUB [UNSPEC_VQSUB_S UNSPEC_VQSUB_U])

(define_int_iterator VSUBHN [UNSPEC_VSUBHN UNSPEC_VRSUBHN])

(define_int_iterator VABAL [UNSPEC_VABAL_S UNSPEC_VABAL_U])

(define_int_iterator VABD [UNSPEC_VABD_S UNSPEC_VABD_U])

(define_int_iterator VABDL [UNSPEC_VABDL_S UNSPEC_VABDL_U])

(define_int_iterator VMAXMIN [UNSPEC_VMAX UNSPEC_VMAX_U
			      UNSPEC_VMIN UNSPEC_VMIN_U])

(define_int_iterator VMAXMINF [UNSPEC_VMAX UNSPEC_VMIN])

(define_int_iterator VMAXMINFNM [UNSPEC_VMAXNM UNSPEC_VMINNM])

(define_int_iterator VPADDL [UNSPEC_VPADDL_S UNSPEC_VPADDL_U])

(define_int_iterator VPADAL [UNSPEC_VPADAL_S UNSPEC_VPADAL_U])

(define_int_iterator VPMAXMIN [UNSPEC_VPMAX UNSPEC_VPMAX_U
			       UNSPEC_VPMIN UNSPEC_VPMIN_U])

(define_int_iterator VPMAXMINF [UNSPEC_VPMAX UNSPEC_VPMIN])

(define_int_iterator VCVT_US [UNSPEC_VCVT_S UNSPEC_VCVT_U])

(define_int_iterator VCVT_US_N [UNSPEC_VCVT_S_N UNSPEC_VCVT_U_N])

(define_int_iterator VCVT_HF_US_N [UNSPEC_VCVT_HF_S_N UNSPEC_VCVT_HF_U_N])

(define_int_iterator VCVT_SI_US_N [UNSPEC_VCVT_SI_S_N UNSPEC_VCVT_SI_U_N])

(define_int_iterator VCVT_HF_US [UNSPEC_VCVTA_S UNSPEC_VCVTA_U
				 UNSPEC_VCVTM_S UNSPEC_VCVTM_U
				 UNSPEC_VCVTN_S UNSPEC_VCVTN_U
				 UNSPEC_VCVTP_S UNSPEC_VCVTP_U])

(define_int_iterator VCVTH_US [UNSPEC_VCVTH_S UNSPEC_VCVTH_U])

;; Operators for FP16 instructions.
(define_int_iterator FP16_RND [UNSPEC_VRND UNSPEC_VRNDA
			       UNSPEC_VRNDM UNSPEC_VRNDN
			       UNSPEC_VRNDP UNSPEC_VRNDX])

(define_int_iterator VQMOVN [UNSPEC_VQMOVN_S UNSPEC_VQMOVN_U])

(define_int_iterator VMOVL [UNSPEC_VMOVL_S UNSPEC_VMOVL_U])

(define_int_iterator VSHL [UNSPEC_VSHL_S UNSPEC_VSHL_U
			   UNSPEC_VRSHL_S UNSPEC_VRSHL_U])

(define_int_iterator VQSHL [UNSPEC_VQSHL_S UNSPEC_VQSHL_U
			    UNSPEC_VQRSHL_S UNSPEC_VQRSHL_U])

(define_int_iterator VSHR_N [UNSPEC_VSHR_S_N UNSPEC_VSHR_U_N
			     UNSPEC_VRSHR_S_N UNSPEC_VRSHR_U_N])

(define_int_iterator VSHRN_N [UNSPEC_VSHRN_N UNSPEC_VRSHRN_N])

(define_int_iterator VQSHRN_N [UNSPEC_VQSHRN_S_N UNSPEC_VQSHRN_U_N
			       UNSPEC_VQRSHRN_S_N UNSPEC_VQRSHRN_U_N])

(define_int_iterator VQSHRUN_N [UNSPEC_VQSHRUN_N UNSPEC_VQRSHRUN_N])

(define_int_iterator VQSHL_N [UNSPEC_VQSHL_S_N UNSPEC_VQSHL_U_N])

(define_int_iterator VSHLL_N [UNSPEC_VSHLL_S_N UNSPEC_VSHLL_U_N])

(define_int_iterator VSRA_N [UNSPEC_VSRA_S_N UNSPEC_VSRA_U_N
			     UNSPEC_VRSRA_S_N UNSPEC_VRSRA_U_N])

(define_int_iterator CRC [UNSPEC_CRC32B UNSPEC_CRC32H UNSPEC_CRC32W
                          UNSPEC_CRC32CB UNSPEC_CRC32CH UNSPEC_CRC32CW])

(define_int_iterator CRYPTO_AESMC [UNSPEC_AESMC UNSPEC_AESIMC])

(define_int_iterator CRYPTO_AES [UNSPEC_AESD UNSPEC_AESE])

(define_int_iterator CRYPTO_BINARY [UNSPEC_SHA1SU1 UNSPEC_SHA256SU0])

(define_int_iterator CRYPTO_TERNARY [UNSPEC_SHA1SU0 UNSPEC_SHA256H
                                     UNSPEC_SHA256H2 UNSPEC_SHA256SU1])

(define_int_iterator CRYPTO_SELECTING [UNSPEC_SHA1C UNSPEC_SHA1M
                                       UNSPEC_SHA1P])

(define_int_iterator USXTB16 [UNSPEC_SXTB16 UNSPEC_UXTB16])
(define_int_iterator SIMD32_NOGE_BINOP
				[UNSPEC_QADD8 UNSPEC_QSUB8 UNSPEC_SHADD8
				 UNSPEC_SHSUB8 UNSPEC_UHADD8 UNSPEC_UHSUB8
				 UNSPEC_UQADD8 UNSPEC_UQSUB8
				 UNSPEC_QADD16 UNSPEC_QASX UNSPEC_QSAX
				 UNSPEC_QSUB16 UNSPEC_SHADD16 UNSPEC_SHASX
				 UNSPEC_SHSAX UNSPEC_SHSUB16 UNSPEC_UHADD16
				 UNSPEC_UHASX UNSPEC_UHSAX UNSPEC_UHSUB16
				 UNSPEC_UQADD16 UNSPEC_UQASX UNSPEC_UQSAX
				 UNSPEC_UQSUB16 UNSPEC_SMUSD UNSPEC_SMUSDX
				 UNSPEC_SXTAB16 UNSPEC_UXTAB16 UNSPEC_USAD8])

(define_int_iterator VQRDMLH_AS [UNSPEC_VQRDMLAH UNSPEC_VQRDMLSH])

(define_int_iterator VFM_LANE_AS [UNSPEC_VFMA_LANE UNSPEC_VFMS_LANE])

(define_int_iterator DOTPROD [UNSPEC_DOT_S UNSPEC_DOT_U])

(define_int_iterator VFMLHALVES [UNSPEC_VFML_LO UNSPEC_VFML_HI])

(define_int_iterator VCADD [UNSPEC_VCADD90 UNSPEC_VCADD270])
(define_int_iterator VCMLA [UNSPEC_VCMLA UNSPEC_VCMLA90 UNSPEC_VCMLA180 UNSPEC_VCMLA270])

;;----------------------------------------------------------------------------
;; Mode attributes
;;----------------------------------------------------------------------------

;; Determine name of atomic compare and swap from success result mode.  This
;; distinguishes between 16-bit Thumb and 32-bit Thumb/ARM.
(define_mode_attr arch [(CC_Z "32") (SI "t1")])

;; Determine element size suffix from vector mode.
(define_mode_attr MMX_char [(V8QI "b") (V4HI "h") (V2SI "w") (DI "d")])

;; vtbl<n> suffix for NEON vector modes.
(define_mode_attr VTAB_n [(TI "2") (EI "3") (OI "4")])

;; (Opposite) mode to convert to/from for NEON mode conversions.
(define_mode_attr V_CVTTO [(V2SI "V2SF") (V2SF "V2SI")
               (V4SI "V4SF") (V4SF "V4SI")])

;; As above but in lower case.
(define_mode_attr V_cvtto [(V2SI "v2sf") (V2SF "v2si")
                           (V4SI "v4sf") (V4SF "v4si")])

;; (Opposite) mode to convert to/from for vector-half mode conversions.
(define_mode_attr VH_CVTTO [(V4HI "V4HF") (V4HF "V4HI")
			    (V8HI "V8HF") (V8HF "V8HI")])

;; Define element mode for each vector mode.
(define_mode_attr V_elem [(V8QI "QI") (V16QI "QI")
			  (V4HI "HI") (V8HI "HI")
			  (V4HF "HF") (V8HF "HF")
                          (V2SI "SI") (V4SI "SI")
                          (V2SF "SF") (V4SF "SF")
                          (DI "DI")   (V2DI "DI")])

;; As above but in lower case.
(define_mode_attr V_elem_l [(V8QI "qi") (V16QI "qi")
			    (V4HI "hi") (V8HI "hi")
			    (V4HF "hf") (V8HF "hf")
			    (V2SI "si") (V4SI "si")
			    (V2SF "sf") (V4SF "sf")
			    (DI "di")   (V2DI "di")])

;; Element modes for vector extraction, padded up to register size.

(define_mode_attr V_ext [(V8QI "SI") (V16QI "SI")
             (V4HI "SI") (V8HI "SI")
             (V2SI "SI") (V4SI "SI")
             (V2SF "SF") (V4SF "SF")
             (DI "DI") (V2DI "DI")])

;; Mode of pair of elements for each vector mode, to define transfer
;; size for structure lane/dup loads and stores.
(define_mode_attr V_two_elem [(V8QI "HI")   (V16QI "HI")
                              (V4HI "SI")   (V8HI "SI")
                              (V4HF "SF")   (V8HF "SF")
                              (V2SI "V2SI") (V4SI "V2SI")
                              (V2SF "V2SF") (V4SF "V2SF")
                              (DI "V2DI")   (V2DI "V2DI")])

;; Mode mapping for VFM[A,S]L instructions.
(define_mode_attr VFML [(V2SF "V4HF") (V4SF "V8HF")])

;; Mode mapping for VFM[A,S]L instructions for the vec_select result.
(define_mode_attr VFMLSEL [(V2SF "V2HF") (V4SF "V4HF")])

;; Mode mapping for VFM[A,S]L instructions for some awkward lane-wise forms.
(define_mode_attr VFMLSEL2 [(V2SF "V8HF") (V4SF "V4HF")])

;; Same as the above, but lowercase.
(define_mode_attr vfmlsel2 [(V2SF "v8hf") (V4SF "v4hf")])

;; Similar, for three elements.
(define_mode_attr V_three_elem [(V8QI "BLK") (V16QI "BLK")
                                (V4HI "BLK") (V8HI "BLK")
                                (V4HF "BLK") (V8HF "BLK")
                                (V2SI "BLK") (V4SI "BLK")
                                (V2SF "BLK") (V4SF "BLK")
                                (DI "EI")    (V2DI "EI")])

;; Similar, for four elements.
(define_mode_attr V_four_elem [(V8QI "SI")   (V16QI "SI")
                               (V4HI "V4HI") (V8HI "V4HI")
                               (V4HF "V4HF") (V8HF "V4HF")
                               (V2SI "V4SI") (V4SI "V4SI")
                               (V2SF "V4SF") (V4SF "V4SF")
                               (DI "OI")     (V2DI "OI")])

;; Register width from element mode
(define_mode_attr V_reg [(V8QI "P") (V16QI "q")
			 (V4HI "P") (V8HI  "q")
			 (V4HF "P") (V8HF  "q")
			 (V2SI "P") (V4SI  "q")
			 (V2SF "P") (V4SF  "q")
			 (DI   "P") (V2DI  "q")
			 (V2HF "") (SF   "")
			 (DF    "P") (HF   "")])

;; Output template to select the high VFP register of a mult-register value.
(define_mode_attr V_hi [(V2SF "p") (V4SF  "f")])

;; Output template to select the low VFP register of a mult-register value.
(define_mode_attr V_lo [(V2SF "") (V4SF  "e")])

;; Helper attribute for printing output templates for awkward forms of
;; vfmlal/vfmlsl intrinsics.
(define_mode_attr V_lane_reg [(V2SF "") (V4SF  "P")])

;; Wider modes with the same number of elements.
(define_mode_attr V_widen [(V8QI "V8HI") (V4HI "V4SI") (V2SI "V2DI")])

;; Narrower modes with the same number of elements.
(define_mode_attr V_narrow [(V8HI "V8QI") (V4SI "V4HI") (V2DI "V2SI")])

;; Narrower modes with double the number of elements.
(define_mode_attr V_narrow_pack [(V4SI "V8HI") (V8HI "V16QI") (V2DI "V4SI")
				 (V4HI "V8QI") (V2SI "V4HI")  (DI "V2SI")])

;; Modes with half the number of equal-sized elements.
(define_mode_attr V_HALF [(V16QI "V8QI") (V8HI "V4HI")
			  (V8HF "V4HF") (V4SI  "V2SI")
			  (V4SF "V2SF") (V2DF "DF")
			  (V2DI "DI") (V4HF "HF")])

;; Same, but lower-case.
(define_mode_attr V_half [(V16QI "v8qi") (V8HI "v4hi")
              (V4SI  "v2si") (V4SF "v2sf")
                          (V2DI "di")])

;; Modes with twice the number of equal-sized elements.
(define_mode_attr V_DOUBLE [(V8QI "V16QI") (V4HI "V8HI")
			    (V2SI "V4SI") (V4HF "V8HF")
			    (V2SF "V4SF") (DF "V2DF")
			    (DI "V2DI")])

;; Same, but lower-case.
(define_mode_attr V_double [(V8QI "v16qi") (V4HI "v8hi")
                (V2SI "v4si") (V2SF "v4sf")
                            (DI "v2di")])

;; Modes with double-width elements.
(define_mode_attr V_double_width [(V8QI "V4HI") (V16QI "V8HI")
                  (V4HI "V2SI") (V8HI "V4SI")
                  (V2SI "DI")   (V4SI "V2DI")])

;; Double-sized modes with the same element size.
;; Used for neon_vdup_lane, where the second operand is double-sized
;; even when the first one is quad.
(define_mode_attr V_double_vector_mode [(V16QI "V8QI") (V8HI "V4HI")
					(V4SI "V2SI") (V4SF "V2SF")
					(V8QI "V8QI") (V4HI "V4HI")
					(V2SI "V2SI") (V2SF "V2SF")
					(V8HF "V4HF") (V4HF "V4HF")])

;; Mode of result of comparison operations (and bit-select operand 1).
(define_mode_attr V_cmp_result [(V8QI "V8QI") (V16QI "V16QI")
				(V4HI "V4HI") (V8HI  "V8HI")
                                (V2SI "V2SI") (V4SI  "V4SI")
				(V4HF "V4HI") (V8HF  "V8HI")
                                (V2SF "V2SI") (V4SF  "V4SI")
                                (DI   "DI")   (V2DI  "V2DI")])

(define_mode_attr v_cmp_result [(V8QI "v8qi") (V16QI "v16qi")
				(V4HI "v4hi") (V8HI  "v8hi")
				(V2SI "v2si") (V4SI  "v4si")
				(DI   "di")   (V2DI  "v2di")
				(V2SF "v2si") (V4SF  "v4si")])

;; Get element type from double-width mode, for operations where we 
;; don't care about signedness.
(define_mode_attr V_if_elem [(V8QI "i8")  (V16QI "i8")
			     (V4HI "i16") (V8HI  "i16")
			     (V2SI "i32") (V4SI  "i32")
			     (DI   "i64") (V2DI  "i64")
			     (V2SF "f32") (V4SF  "f32")
			     (SF   "f32") (DF    "f64")
			     (HF   "f16") (V4HF  "f16")
			     (V8HF "f16")])

;; Same, but for operations which work on signed values.
(define_mode_attr V_s_elem [(V8QI "s8")  (V16QI "s8")
			    (V4HI "s16") (V8HI  "s16")
			    (V2SI "s32") (V4SI  "s32")
			    (DI   "s64") (V2DI  "s64")
			    (V2SF "f32") (V4SF  "f32")
			    (HF   "f16") (V4HF  "f16")
			    (V8HF "f16")])

;; Same, but for operations which work on unsigned values.
(define_mode_attr V_u_elem [(V8QI "u8")  (V16QI "u8")
                (V4HI "u16") (V8HI  "u16")
                            (V2SI "u32") (V4SI  "u32")
                            (DI   "u64") (V2DI  "u64")
                            (V2SF "f32") (V4SF  "f32")])

;; Element types for extraction of unsigned scalars.
(define_mode_attr V_uf_sclr [(V8QI "u8")  (V16QI "u8")
                 (V4HI "u16") (V8HI "u16")
                             (V2SI "32") (V4SI "32")
                             (V4HF "u16") (V8HF "u16")
                             (V2SF "32") (V4SF "32")])

(define_mode_attr V_sz_elem [(V8QI "8")  (V16QI "8")
			     (V4HI "16") (V8HI  "16")
			     (V2SI "32") (V4SI  "32")
			     (DI   "64") (V2DI  "64")
			     (V4HF "16") (V8HF "16")
			     (V2SF "32") (V4SF  "32")])

(define_mode_attr V_elem_ch [(V8QI "b")  (V16QI "b")
			     (V4HI "h") (V8HI  "h")
			     (V2SI "s") (V4SI  "s")
			     (DI   "d") (V2DI  "d")
			     (V2SF "s") (V4SF  "s")
			     (V2SF "s") (V4SF  "s")])

(define_mode_attr VH_elem_ch [(V4HI "s") (V8HI  "s")
			      (V4HF "s") (V8HF  "s")
			      (HF "s")])

;; Element sizes for duplicating ARM registers to all elements of a vector.
(define_mode_attr VD_dup [(V8QI "8") (V4HI "16") (V2SI "32") (V2SF "32")])

;; Opaque integer types for results of pair-forming intrinsics (vtrn, etc.)
(define_mode_attr V_PAIR [(V8QI "TI") (V16QI "OI")
              (V4HI "TI") (V8HI  "OI")
                          (V2SI "TI") (V4SI  "OI")
                          (V2SF "TI") (V4SF  "OI")
                          (DI   "TI") (V2DI  "OI")])

;; Same, but lower-case.
(define_mode_attr V_pair [(V8QI "ti") (V16QI "oi")
              (V4HI "ti") (V8HI  "oi")
                          (V2SI "ti") (V4SI  "oi")
                          (V2SF "ti") (V4SF  "oi")
                          (DI   "ti") (V2DI  "oi")])

;; Extra suffix on some 64-bit insn names (to avoid collision with standard
;; names which we don't want to define).
(define_mode_attr V_suf64 [(V8QI "") (V16QI "")
                           (V4HI "") (V8HI "")
                           (V2SI "") (V4SI "")
                           (V2SF "") (V4SF "")
                           (DI "_neon") (V2DI "")])


;; Scalars to be presented to scalar multiplication instructions
;; must satisfy the following constraints.
;; 1. If the mode specifies 16-bit elements, the scalar must be in D0-D7.
;; 2. If the mode specifies 32-bit elements, the scalar must be in D0-D15.

;; This mode attribute is used to obtain the correct register constraints.

(define_mode_attr scalar_mul_constraint [(V4HI "x") (V2SI "t") (V2SF "t")
					 (V8HI "x") (V4SI "t") (V4SF "t")
					 (V8HF "x") (V4HF "x")])

;; Predicates used for setting type for neon instructions

(define_mode_attr Is_float_mode [(V8QI "false") (V16QI "false")
				 (V4HI "false") (V8HI "false")
				 (V2SI "false") (V4SI "false")
				 (V4HF "true") (V8HF "true")
				 (V2SF "true") (V4SF "true")
				 (DI "false") (V2DI "false")])

(define_mode_attr Scalar_mul_8_16 [(V8QI "true") (V16QI "true")
				   (V4HI "true") (V8HI "true")
				   (V2SI "false") (V4SI "false")
				   (V2SF "false") (V4SF "false")
				   (DI "false") (V2DI "false")])

(define_mode_attr Is_d_reg [(V8QI "true") (V16QI "false")
			    (V4HI "true") (V8HI  "false")
			    (V2SI "true") (V4SI  "false")
			    (V2SF "true") (V4SF  "false")
			    (DI   "true") (V2DI  "false")
			    (V4HF "true") (V8HF  "false")])

(define_mode_attr V_mode_nunits [(V8QI "8") (V16QI "16")
				 (V4HF "4") (V8HF "8")
                                 (V4HI "4") (V8HI "8")
                                 (V2SI "2") (V4SI "4")
                                 (V2SF "2") (V4SF "4")
                                 (DI "1")   (V2DI "2")
                                 (DF "1")   (V2DF "2")])

;; Same as V_widen, but lower-case.
(define_mode_attr V_widen_l [(V8QI "v8hi") (V4HI "v4si") ( V2SI "v2di")])

;; Widen. Result is half the number of elements, but widened to double-width.
(define_mode_attr V_unpack   [(V16QI "V8HI") (V8HI "V4SI") (V4SI "V2DI")])

;; Conditions to be used in extend<mode>di patterns.
(define_mode_attr qhs_zextenddi_cond [(SI "") (HI "&& arm_arch6") (QI "")])
(define_mode_attr qhs_sextenddi_cond [(SI "") (HI "&& arm_arch6")
				      (QI "&& arm_arch6")])
(define_mode_attr qhs_zextenddi_op [(SI "s_register_operand")
				   (HI "nonimmediate_operand")
				   (QI "nonimmediate_operand")])
(define_mode_attr qhs_extenddi_op [(SI "s_register_operand")
				   (HI "nonimmediate_operand")
				   (QI "arm_reg_or_extendqisi_mem_op")])
(define_mode_attr qhs_extenddi_cstr [(SI "0,r,r") (HI "0,rm,rm") (QI "0,rUq,rm")])
(define_mode_attr qhs_zextenddi_cstr [(SI "0,r") (HI "0,rm") (QI "0,rm")])

;; Mode attributes used for fixed-point support.
(define_mode_attr qaddsub_suf [(V4UQQ "8") (V2UHQ "16") (UQQ "8") (UHQ "16")
			       (V2UHA "16") (UHA "16")
			       (V4QQ "8") (V2HQ "16") (QQ "8") (HQ "16")
			       (V2HA "16") (HA "16") (SQ "") (SA "")])

;; Mode attribute for vshll.
(define_mode_attr V_innermode [(V8QI "QI") (V4HI "HI") (V2SI "SI")])

;; Mode attributes used for VFP support.
(define_mode_attr F_constraint [(SF "t") (DF "w")])
(define_mode_attr vfp_type [(SF "s") (DF "d")])
(define_mode_attr vfp_double_cond [(SF "") (DF "&& TARGET_VFP_DOUBLE")])
(define_mode_attr VF_constraint [(V4HF "t") (V8HF "t") (V2SF "t") (V4SF "w")])

;; Mode attribute used to build the "type" attribute.
(define_mode_attr q [(V8QI "") (V16QI "_q")
		     (V4HI "") (V8HI "_q")
		     (V2SI "") (V4SI "_q")
		     (V4HF "") (V8HF "_q")
		     (V2SF "") (V4SF "_q")
		     (V4HF "") (V8HF "_q")
		     (DI "")   (V2DI "_q")
		     (DF "")   (V2DF "_q")
		     (HF "")])

(define_mode_attr pf [(V8QI "p") (V16QI "p") (V2SF "f") (V4SF "f")])

(define_mode_attr VSI2QI [(V2SI "V8QI") (V4SI "V16QI")])
(define_mode_attr vsi2qi [(V2SI "v8qi") (V4SI "v16qi")])

;;----------------------------------------------------------------------------
;; Code attributes
;;----------------------------------------------------------------------------

;; Assembler mnemonics for vqh_ops and vqhs_ops iterators.
(define_code_attr VQH_mnem [(plus "vadd") (smin "vmin") (smax "vmax")
                (umin "vmin") (umax "vmax")])

;; Type attributes for vqh_ops and vqhs_ops iterators.
(define_code_attr VQH_type [(plus "add") (smin "minmax") (smax "minmax")
                (umin "minmax") (umax "minmax")])

;; Signs of above, where relevant.
(define_code_attr VQH_sign [(plus "i") (smin "s") (smax "s") (umin "u")
                (umax "u")])

(define_code_attr cnb [(ltu "CC_C") (geu "CC")])

;; Map rtl operator codes to optab names
(define_code_attr optab
 [(ltu "ltu")
  (geu "geu")
  (and "and")
  (ior "ior")
  (xor "xor")])

;; Assembler mnemonics for signedness of widening operations.
(define_code_attr US [(sign_extend "s") (zero_extend "u")])
(define_code_attr Us [(sign_extend "") (zero_extend "u")])

;; Signedness suffix for float->fixed conversions.  Empty for signed
;; conversion.
(define_code_attr su_optab [(fix "") (unsigned_fix "u")])

;; Sign prefix to use in instruction type suffixes, i.e. s32, u32.
(define_code_attr su [(fix "s") (unsigned_fix "u")])

;; Right shifts
(define_code_attr shift [(ashiftrt "ashr") (lshiftrt "lshr")])
(define_code_attr shifttype [(ashiftrt "signed") (lshiftrt "unsigned")])

;; String reprentations of operations on the sign of a number.
(define_code_attr absneg_str [(abs "abs") (neg "neg")])

;; Conversions.
(define_code_attr FCVTI32typename [(unsigned_float "u32") (float "s32")])

(define_code_attr float_sup [(unsigned_float "u") (float "s")])

(define_code_attr float_SUP [(unsigned_float "U") (float "S")])

;;----------------------------------------------------------------------------
;; Int attributes
;;----------------------------------------------------------------------------

;; Mapping between vector UNSPEC operations and the signed ('s'),
;; unsigned ('u'), poly ('p') or float ('f') nature of their data type.
(define_int_attr sup [
  (UNSPEC_SXTB16 "s") (UNSPEC_UXTB16 "u")
  (UNSPEC_VADDL_S "s") (UNSPEC_VADDL_U "u")
  (UNSPEC_VADDW_S "s") (UNSPEC_VADDW_U "u")
  (UNSPEC_VRHADD_S "s") (UNSPEC_VRHADD_U "u")
  (UNSPEC_VHADD_S "s") (UNSPEC_VHADD_U "u")
  (UNSPEC_VQADD_S "s") (UNSPEC_VQADD_U "u")
  (UNSPEC_VMLAL_S "s") (UNSPEC_VMLAL_U "u")
  (UNSPEC_VMLAL_S_LANE "s") (UNSPEC_VMLAL_U_LANE "u")
  (UNSPEC_VMLSL_S "s") (UNSPEC_VMLSL_U "u")
  (UNSPEC_VMLSL_S_LANE "s") (UNSPEC_VMLSL_U_LANE "u")
  (UNSPEC_VMULL_S "s") (UNSPEC_VMULL_U "u") (UNSPEC_VMULL_P "p")
  (UNSPEC_VMULL_S_LANE "s") (UNSPEC_VMULL_U_LANE "u")
  (UNSPEC_VSUBL_S "s") (UNSPEC_VSUBL_U "u")
  (UNSPEC_VSUBW_S "s") (UNSPEC_VSUBW_U "u")
  (UNSPEC_VHSUB_S "s") (UNSPEC_VHSUB_U "u")
  (UNSPEC_VQSUB_S "s") (UNSPEC_VQSUB_U "u")
  (UNSPEC_VABAL_S "s") (UNSPEC_VABAL_U "u")
  (UNSPEC_VABD_S "s") (UNSPEC_VABD_U "u")
  (UNSPEC_VABDL_S "s") (UNSPEC_VABDL_U "u")
  (UNSPEC_VMAX "s") (UNSPEC_VMAX_U "u")
  (UNSPEC_VMIN "s") (UNSPEC_VMIN_U "u")
  (UNSPEC_VPADDL_S "s") (UNSPEC_VPADDL_U "u")
  (UNSPEC_VPADAL_S "s") (UNSPEC_VPADAL_U "u")
  (UNSPEC_VPMAX "s") (UNSPEC_VPMAX_U "u")
  (UNSPEC_VPMIN "s") (UNSPEC_VPMIN_U "u")
  (UNSPEC_VCVT_S "s") (UNSPEC_VCVT_U "u")
  (UNSPEC_VCVTA_S "s") (UNSPEC_VCVTA_U "u")
  (UNSPEC_VCVTM_S "s") (UNSPEC_VCVTM_U "u")
  (UNSPEC_VCVTN_S "s") (UNSPEC_VCVTN_U "u")
  (UNSPEC_VCVTP_S "s") (UNSPEC_VCVTP_U "u")
  (UNSPEC_VCVT_S_N "s") (UNSPEC_VCVT_U_N "u")
  (UNSPEC_VCVT_HF_S_N "s") (UNSPEC_VCVT_HF_U_N "u")
  (UNSPEC_VCVT_SI_S_N "s") (UNSPEC_VCVT_SI_U_N "u")
  (UNSPEC_VQMOVN_S "s") (UNSPEC_VQMOVN_U "u")
  (UNSPEC_VMOVL_S "s") (UNSPEC_VMOVL_U "u")
  (UNSPEC_VSHL_S "s") (UNSPEC_VSHL_U "u")
  (UNSPEC_VRSHL_S "s") (UNSPEC_VRSHL_U "u")
  (UNSPEC_VQSHL_S "s") (UNSPEC_VQSHL_U "u")
  (UNSPEC_VQRSHL_S "s") (UNSPEC_VQRSHL_U "u")
  (UNSPEC_VSHR_S_N "s") (UNSPEC_VSHR_U_N "u")
  (UNSPEC_VRSHR_S_N "s") (UNSPEC_VRSHR_U_N "u")
  (UNSPEC_VQSHRN_S_N "s") (UNSPEC_VQSHRN_U_N "u")
  (UNSPEC_VQRSHRN_S_N "s") (UNSPEC_VQRSHRN_U_N "u")
  (UNSPEC_VQSHL_S_N "s") (UNSPEC_VQSHL_U_N "u")
  (UNSPEC_VSHLL_S_N "s") (UNSPEC_VSHLL_U_N "u")
  (UNSPEC_VSRA_S_N "s") (UNSPEC_VSRA_U_N "u")
  (UNSPEC_VRSRA_S_N "s") (UNSPEC_VRSRA_U_N "u")
  (UNSPEC_VCVTH_S "s") (UNSPEC_VCVTH_U "u")
  (UNSPEC_DOT_S "s") (UNSPEC_DOT_U "u")
])

(define_int_attr vfml_half
 [(UNSPEC_VFML_HI "high") (UNSPEC_VFML_LO "low")])

(define_int_attr vfml_half_selector
 [(UNSPEC_VFML_HI "true") (UNSPEC_VFML_LO "false")])

(define_int_attr vcvth_op
 [(UNSPEC_VCVTA_S "a") (UNSPEC_VCVTA_U "a")
  (UNSPEC_VCVTM_S "m") (UNSPEC_VCVTM_U "m")
  (UNSPEC_VCVTN_S "n") (UNSPEC_VCVTN_U "n")
  (UNSPEC_VCVTP_S "p") (UNSPEC_VCVTP_U "p")])

(define_int_attr fp16_rnd_str
  [(UNSPEC_VRND "rnd") (UNSPEC_VRNDA "rnda")
   (UNSPEC_VRNDM "rndm") (UNSPEC_VRNDN "rndn")
   (UNSPEC_VRNDP "rndp") (UNSPEC_VRNDX "rndx")])

(define_int_attr fp16_rnd_insn
  [(UNSPEC_VRND "vrintz") (UNSPEC_VRNDA "vrinta")
   (UNSPEC_VRNDM "vrintm") (UNSPEC_VRNDN "vrintn")
   (UNSPEC_VRNDP "vrintp") (UNSPEC_VRNDX "vrintx")])

(define_int_attr cmp_op_unsp [(UNSPEC_VCEQ "eq") (UNSPEC_VCGT "gt")
			      (UNSPEC_VCGE "ge") (UNSPEC_VCLE "le")
			      (UNSPEC_VCLT "lt") (UNSPEC_VCAGE "ge")
			      (UNSPEC_VCAGT "gt") (UNSPEC_VCALE "le")
			      (UNSPEC_VCALT "lt")])

(define_int_attr r [
  (UNSPEC_VRHADD_S "r") (UNSPEC_VRHADD_U "r")
  (UNSPEC_VHADD_S "") (UNSPEC_VHADD_U "")
  (UNSPEC_VADDHN "") (UNSPEC_VRADDHN "r")
  (UNSPEC_VQDMULH "") (UNSPEC_VQRDMULH "r")
  (UNSPEC_VQDMULH_LANE "") (UNSPEC_VQRDMULH_LANE "r")
  (UNSPEC_VSUBHN "") (UNSPEC_VRSUBHN "r")
])

(define_int_attr maxmin [
  (UNSPEC_VMAX "max") (UNSPEC_VMAX_U "max")
  (UNSPEC_VMIN "min") (UNSPEC_VMIN_U "min")
  (UNSPEC_VPMAX "max") (UNSPEC_VPMAX_U "max")
  (UNSPEC_VPMIN "min") (UNSPEC_VPMIN_U "min")
])

(define_int_attr fmaxmin [
  (UNSPEC_VMAXNM "fmax") (UNSPEC_VMINNM "fmin")])

(define_int_attr fmaxmin_op [
  (UNSPEC_VMAXNM "vmaxnm") (UNSPEC_VMINNM "vminnm")
])

(define_int_attr shift_op [
  (UNSPEC_VSHL_S "shl") (UNSPEC_VSHL_U "shl")
  (UNSPEC_VRSHL_S "rshl") (UNSPEC_VRSHL_U "rshl")
  (UNSPEC_VQSHL_S "qshl") (UNSPEC_VQSHL_U "qshl")
  (UNSPEC_VQRSHL_S "qrshl") (UNSPEC_VQRSHL_U "qrshl")
  (UNSPEC_VSHR_S_N "shr") (UNSPEC_VSHR_U_N "shr")
  (UNSPEC_VRSHR_S_N "rshr") (UNSPEC_VRSHR_U_N "rshr")
  (UNSPEC_VSHRN_N "shrn") (UNSPEC_VRSHRN_N "rshrn")
  (UNSPEC_VQRSHRN_S_N "qrshrn") (UNSPEC_VQRSHRN_U_N "qrshrn")
  (UNSPEC_VQSHRN_S_N "qshrn") (UNSPEC_VQSHRN_U_N "qshrn")
  (UNSPEC_VQSHRUN_N "qshrun") (UNSPEC_VQRSHRUN_N "qrshrun")
  (UNSPEC_VSRA_S_N "sra") (UNSPEC_VSRA_U_N "sra")
  (UNSPEC_VRSRA_S_N "rsra") (UNSPEC_VRSRA_U_N "rsra")
])

;; Standard names for floating point to integral rounding instructions.
(define_int_attr vrint_pattern [(UNSPEC_VRINTZ "btrunc") (UNSPEC_VRINTP "ceil")
                         (UNSPEC_VRINTA "round") (UNSPEC_VRINTM "floor")
                         (UNSPEC_VRINTR "nearbyint") (UNSPEC_VRINTX "rint")])

;; Suffixes for vrint instructions specifying rounding modes.
(define_int_attr vrint_variant [(UNSPEC_VRINTZ "z") (UNSPEC_VRINTP "p")
                               (UNSPEC_VRINTA "a") (UNSPEC_VRINTM "m")
                               (UNSPEC_VRINTR "r") (UNSPEC_VRINTX "x")])

;; Some of the vrint instuctions are predicable.
(define_int_attr vrint_predicable [(UNSPEC_VRINTZ "yes") (UNSPEC_VRINTP "no")
                                  (UNSPEC_VRINTA "no") (UNSPEC_VRINTM "no")
                                  (UNSPEC_VRINTR "yes") (UNSPEC_VRINTX "yes")])

(define_int_attr vrint_conds [(UNSPEC_VRINTZ "nocond") (UNSPEC_VRINTP "unconditional")
                              (UNSPEC_VRINTA "unconditional") (UNSPEC_VRINTM "unconditional")
                              (UNSPEC_VRINTR "nocond") (UNSPEC_VRINTX "nocond")])

(define_int_attr nvrint_variant [(UNSPEC_NVRINTZ "z") (UNSPEC_NVRINTP "p")
                                (UNSPEC_NVRINTA "a") (UNSPEC_NVRINTM "m")
                                (UNSPEC_NVRINTX "x") (UNSPEC_NVRINTN "n")])

(define_int_attr crc_variant [(UNSPEC_CRC32B "crc32b") (UNSPEC_CRC32H "crc32h")
                        (UNSPEC_CRC32W "crc32w") (UNSPEC_CRC32CB "crc32cb")
                        (UNSPEC_CRC32CH "crc32ch") (UNSPEC_CRC32CW "crc32cw")])

(define_int_attr crc_mode [(UNSPEC_CRC32B "QI") (UNSPEC_CRC32H "HI")
                        (UNSPEC_CRC32W "SI") (UNSPEC_CRC32CB "QI")
                        (UNSPEC_CRC32CH "HI") (UNSPEC_CRC32CW "SI")])

(define_int_attr crypto_pattern [(UNSPEC_SHA1H "sha1h") (UNSPEC_AESMC "aesmc")
                          (UNSPEC_AESIMC "aesimc") (UNSPEC_AESD "aesd")
                          (UNSPEC_AESE "aese") (UNSPEC_SHA1SU1 "sha1su1")
                          (UNSPEC_SHA256SU0 "sha256su0") (UNSPEC_SHA1C "sha1c")
                          (UNSPEC_SHA1M "sha1m") (UNSPEC_SHA1P "sha1p")
                          (UNSPEC_SHA1SU0 "sha1su0") (UNSPEC_SHA256H "sha256h")
                          (UNSPEC_SHA256H2 "sha256h2")
                          (UNSPEC_SHA256SU1 "sha256su1")])

(define_int_attr crypto_type
 [(UNSPEC_AESE "crypto_aese") (UNSPEC_AESD "crypto_aese")
 (UNSPEC_AESMC "crypto_aesmc") (UNSPEC_AESIMC "crypto_aesmc")
 (UNSPEC_SHA1C "crypto_sha1_slow") (UNSPEC_SHA1P "crypto_sha1_slow")
 (UNSPEC_SHA1M "crypto_sha1_slow") (UNSPEC_SHA1SU1 "crypto_sha1_fast")
 (UNSPEC_SHA1SU0 "crypto_sha1_xor") (UNSPEC_SHA256H "crypto_sha256_slow")
 (UNSPEC_SHA256H2 "crypto_sha256_slow") (UNSPEC_SHA256SU0 "crypto_sha256_fast")
 (UNSPEC_SHA256SU1 "crypto_sha256_slow")])

(define_int_attr crypto_size_sfx [(UNSPEC_SHA1H "32") (UNSPEC_AESMC "8")
                          (UNSPEC_AESIMC "8") (UNSPEC_AESD "8")
                          (UNSPEC_AESE "8") (UNSPEC_SHA1SU1 "32")
                          (UNSPEC_SHA256SU0 "32") (UNSPEC_SHA1C "32")
                          (UNSPEC_SHA1M "32") (UNSPEC_SHA1P "32")
                          (UNSPEC_SHA1SU0 "32") (UNSPEC_SHA256H "32")
                          (UNSPEC_SHA256H2 "32") (UNSPEC_SHA256SU1 "32")])

(define_int_attr crypto_mode [(UNSPEC_SHA1H "V4SI") (UNSPEC_AESMC "V16QI")
                          (UNSPEC_AESIMC "V16QI") (UNSPEC_AESD "V16QI")
                          (UNSPEC_AESE "V16QI") (UNSPEC_SHA1SU1 "V4SI")
                          (UNSPEC_SHA256SU0 "V4SI") (UNSPEC_SHA1C "V4SI")
                          (UNSPEC_SHA1M "V4SI") (UNSPEC_SHA1P "V4SI")
                          (UNSPEC_SHA1SU0 "V4SI") (UNSPEC_SHA256H "V4SI")
                          (UNSPEC_SHA256H2 "V4SI") (UNSPEC_SHA256SU1 "V4SI")])

(define_int_attr rot [(UNSPEC_VCADD90 "90")
		      (UNSPEC_VCADD270 "270")
		      (UNSPEC_VCMLA "0")
		      (UNSPEC_VCMLA90 "90")
		      (UNSPEC_VCMLA180 "180")
		      (UNSPEC_VCMLA270 "270")])

(define_int_attr simd32_op [(UNSPEC_QADD8 "qadd8") (UNSPEC_QSUB8 "qsub8")
			    (UNSPEC_SHADD8 "shadd8") (UNSPEC_SHSUB8 "shsub8")
			    (UNSPEC_UHADD8 "uhadd8") (UNSPEC_UHSUB8 "uhsub8")
			    (UNSPEC_UQADD8 "uqadd8") (UNSPEC_UQSUB8 "uqsub8")
			    (UNSPEC_QADD16 "qadd16") (UNSPEC_QASX "qasx")
			    (UNSPEC_QSAX "qsax") (UNSPEC_QSUB16 "qsub16")
			    (UNSPEC_SHADD16 "shadd16") (UNSPEC_SHASX "shasx")
			    (UNSPEC_SHSAX "shsax") (UNSPEC_SHSUB16 "shsub16")
			    (UNSPEC_UHADD16 "uhadd16") (UNSPEC_UHASX "uhasx")
			    (UNSPEC_UHSAX "uhsax") (UNSPEC_UHSUB16 "uhsub16")
			    (UNSPEC_UQADD16 "uqadd16") (UNSPEC_UQASX "uqasx")
			    (UNSPEC_UQSAX "uqsax") (UNSPEC_UQSUB16 "uqsub16")
			    (UNSPEC_SMUSD "smusd") (UNSPEC_SMUSDX "smusdx")
			    (UNSPEC_SXTAB16 "sxtab16") (UNSPEC_UXTAB16 "uxtab16")
			    (UNSPEC_USAD8 "usad8")])

;; Both kinds of return insn.
(define_code_iterator RETURNS [return simple_return])
(define_code_attr return_str [(return "") (simple_return "simple_")])
(define_code_attr return_simple_p [(return "false") (simple_return "true")])
(define_code_attr return_cond_false [(return " && USE_RETURN_INSN (FALSE)")
                               (simple_return " && use_simple_return_p ()")])
(define_code_attr return_cond_true [(return " && USE_RETURN_INSN (TRUE)")
                               (simple_return " && use_simple_return_p ()")])

;; Attributes for VQRDMLAH/VQRDMLSH
(define_int_attr neon_rdma_as [(UNSPEC_VQRDMLAH "a") (UNSPEC_VQRDMLSH "s")])

;; Attributes for VFMA_LANE/ VFMS_LANE
(define_int_attr neon_vfm_lane_as
 [(UNSPEC_VFMA_LANE "a") (UNSPEC_VFMS_LANE "s")])

;; An iterator for the CDP coprocessor instructions
(define_int_iterator CDPI [VUNSPEC_CDP VUNSPEC_CDP2])
(define_int_attr cdp [(VUNSPEC_CDP "cdp") (VUNSPEC_CDP2 "cdp2")])
(define_int_attr CDP [(VUNSPEC_CDP "CDP") (VUNSPEC_CDP2 "CDP2")])

;; An iterator for the LDC coprocessor instruction
(define_int_iterator LDCI [VUNSPEC_LDC VUNSPEC_LDC2
			   VUNSPEC_LDCL VUNSPEC_LDC2L])
(define_int_attr ldc [(VUNSPEC_LDC "ldc") (VUNSPEC_LDC2 "ldc2")
		      (VUNSPEC_LDCL "ldcl") (VUNSPEC_LDC2L "ldc2l")])
(define_int_attr LDC [(VUNSPEC_LDC "LDC") (VUNSPEC_LDC2 "LDC2")
		      (VUNSPEC_LDCL "LDCL") (VUNSPEC_LDC2L "LDC2L")])

;; An iterator for the STC coprocessor instructions
(define_int_iterator STCI [VUNSPEC_STC VUNSPEC_STC2
			   VUNSPEC_STCL VUNSPEC_STC2L])
(define_int_attr stc [(VUNSPEC_STC "stc") (VUNSPEC_STC2 "stc2")
		      (VUNSPEC_STCL "stcl") (VUNSPEC_STC2L "stc2l")])
(define_int_attr STC [(VUNSPEC_STC "STC") (VUNSPEC_STC2 "STC2")
		      (VUNSPEC_STCL "STCL") (VUNSPEC_STC2L "STC2L")])

;; An iterator for the MCR coprocessor instructions
(define_int_iterator MCRI [VUNSPEC_MCR VUNSPEC_MCR2])

(define_int_attr mcr [(VUNSPEC_MCR "mcr") (VUNSPEC_MCR2 "mcr2")])
(define_int_attr MCR [(VUNSPEC_MCR "MCR") (VUNSPEC_MCR2 "MCR2")])

;; An iterator for the MRC coprocessor instructions
(define_int_iterator MRCI [VUNSPEC_MRC VUNSPEC_MRC2])

(define_int_attr mrc [(VUNSPEC_MRC "mrc") (VUNSPEC_MRC2 "mrc2")])
(define_int_attr MRC [(VUNSPEC_MRC "MRC") (VUNSPEC_MRC2 "MRC2")])

;; An iterator for the MCRR coprocessor instructions
(define_int_iterator MCRRI [VUNSPEC_MCRR VUNSPEC_MCRR2])

(define_int_attr mcrr [(VUNSPEC_MCRR "mcrr") (VUNSPEC_MCRR2 "mcrr2")])
(define_int_attr MCRR [(VUNSPEC_MCRR "MCRR") (VUNSPEC_MCRR2 "MCRR2")])

;; An iterator for the MRRC coprocessor instructions
(define_int_iterator MRRCI [VUNSPEC_MRRC VUNSPEC_MRRC2])

(define_int_attr mrrc [(VUNSPEC_MRRC "mrrc") (VUNSPEC_MRRC2 "mrrc2")])
(define_int_attr MRRC [(VUNSPEC_MRRC "MRRC") (VUNSPEC_MRRC2 "MRRC2")])

(define_int_attr opsuffix [(UNSPEC_DOT_S "s8")
			   (UNSPEC_DOT_U "u8")])