From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/config/arm/iterators.md | 405 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 405 insertions(+) create mode 100644 gcc/config/arm/iterators.md (limited to 'gcc/config/arm/iterators.md') diff --git a/gcc/config/arm/iterators.md b/gcc/config/arm/iterators.md new file mode 100644 index 000000000..887c962ba --- /dev/null +++ b/gcc/config/arm/iterators.md @@ -0,0 +1,405 @@ +;; Code and mode itertator and attribute definitions for the ARM backend +;; Copyright (C) 2010 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 +;; . + + +;;---------------------------------------------------------------------------- +;; 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 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]) + +;; Integer element sizes implemented by IWMMXT. +(define_mode_iterator VMMX [V2SI V4HI V8QI]) + +;; 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. +(define_mode_iterator VD [V8QI V4HI V2SI V2SF]) + +;; Double-width vector modes plus 64-bit elements. +(define_mode_iterator VDX [V8QI V4HI V2SI V2SF DI]) + +;; Double-width vector modes without floating-point elements. +(define_mode_iterator VDI [V8QI V4HI V2SI]) + +;; Quad-width vector modes. +(define_mode_iterator VQ [V16QI V8HI V4SI V4SF]) + +;; Quad-width vector modes plus 64-bit elements. +(define_mode_iterator VQX [V16QI V8HI 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 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 V2SF V4SF V2DI]) + +;; All supported vector modes (except those with 64-bit integer elements). +(define_mode_iterator VDQW [V8QI V16QI V4HI V8HI V2SI V4SI V2SF V4SF]) + +;; 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 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 float->int conversions. +(define_mode_iterator VCVTF [V2SF V4SF]) + +;; Vector modes form int->float conversions. +(define_mode_iterator VCVTI [V2SI V4SI]) + +;; 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]) + +;; 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]) + +;;---------------------------------------------------------------------------- +;; 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]) + +;; A list of ... +(define_code_iterator ior_xor [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]) + +;;---------------------------------------------------------------------------- +;; Mode attributes +;;---------------------------------------------------------------------------- + +;; Determine element size suffix from vector mode. +(define_mode_attr MMX_char [(V8QI "b") (V4HI "h") (V2SI "w") (DI "d")]) + +;; vtbl 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")]) + +;; Define element mode for each vector mode. +(define_mode_attr V_elem [(V8QI "QI") (V16QI "QI") + (V4HI "HI") (V8HI "HI") + (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") + (V2SI "V2SI") (V4SI "V2SI") + (V2SF "V2SF") (V4SF "V2SF") + (DI "V2DI") (V2DI "V2DI")]) + +;; Similar, for three elements. +;; ??? Should we define extra modes so that sizes of all three-element +;; accesses can be accurately represented? +(define_mode_attr V_three_elem [(V8QI "SI") (V16QI "SI") + (V4HI "V4HI") (V8HI "V4HI") + (V2SI "V4SI") (V4SI "V4SI") + (V2SF "V4SF") (V4SF "V4SF") + (DI "EI") (V2DI "EI")]) + +;; Similar, for four elements. +(define_mode_attr V_four_elem [(V8QI "SI") (V16QI "SI") + (V4HI "V4HI") (V8HI "V4HI") + (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") + (V2SI "P") (V4SI "q") + (V2SF "P") (V4SF "q") + (DI "P") (V2DI "q")]) + +;; 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") + (V4SI "V2SI") (V4SF "V2SF") (V2DF "DF") + (V2DI "DI")]) + +;; 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") (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")]) + +;; 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") + (V2SF "V2SI") (V4SF "V4SI") + (DI "DI") (V2DI "V2DI")]) + +;; 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")]) + +;; 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")]) + +;; 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") + (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") + (V2SF "32") (V4SF "32")]) + +;; 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")]) + +;; Predicates used for setting neon_type + +(define_mode_attr Is_float_mode [(V8QI "false") (V16QI "false") + (V4HI "false") (V8HI "false") + (V2SI "false") (V4SI "false") + (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")]) + +(define_mode_attr V_mode_nunits [(V8QI "8") (V16QI "16") + (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 extenddi 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_extenddi_op [(SI "s_register_operand") + (HI "nonimmediate_operand") + (QI "nonimmediate_operand")]) +(define_mode_attr qhs_extenddi_cstr [(SI "r") (HI "rm") (QI "rm")]) + +;;---------------------------------------------------------------------------- +;; 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")]) + +;; 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")]) +(define_code_attr optab [(ltu "ltu") (geu "geu")]) + +;; Assembler mnemonics for signedness of widening operations. +(define_code_attr US [(sign_extend "s") (zero_extend "u")]) -- cgit v1.2.3