gcc/
    * Makefile.in (TEXI_GCC_FILES): Add arm-neon-intrinsics.texi.
    * config.gcc (arm*-*-*): Add arm_neon.h to extra headers.
    (with_fpu): Allow --with-fpu=neon.
    * config/arm/aof.h (ADDITIONAL_REGISTER_NAMES): Add Q0-Q15.
    * config/arm/aout.h (ADDITIONAL_REGISTER_NAMES): Add Q0-Q15.
    * config/arm/arm-modes.def (EI, OI, CI, XI): New modes.
    * config/arm/arm-protos.h (neon_immediate_valid_for_move)
    (neon_immediate_valid_for_logic, neon_output_logic_immediate)
    (neon_pairwise_reduce, neon_expand_vector_init, neon_reinterpret)
    (neon_emit_pair_result_insn, neon_disambiguate_copy)
    (neon_vector_mem_operand, neon_struct_mem_operand, output_move_quad)
    (output_move_neon): Add prototypes.
    * config/arm/arm.c (FL_NEON): New flag for NEON processor capability.
    (all_fpus): Add FPUTYPE_NEON.
    (fp_model_for_fpu): Add NEON field.
    (arm_return_in_memory): Return vectors <= 16 bytes in ARM registers.
    (arm_arg_partial_bytes): Allow NEON vectors to be passed partially
    in registers.
    (arm_legitimate_address_p): Don't support fancy addressing for NEON
    structure moves.
    (thumb2_legitimate_address_p): Likewise.
    (neon_valid_immediate): Recognize and prepare constants suitable for
    NEON instructions.
    (neon_immediate_valid_for_move): New function. Recognize and prepare
    immediates for NEON move instructions.
    (neon_immediate_valid_for_logic): New function. Recognize and
    prepare immediates for NEON logic instructions.
    (neon_output_logic_immediate): New function. Create asm string
    suitable for outputting immediate logic instructions.
    (neon_pairwise_reduce): New function. Implement reduction using
    pairwise operations.
    (neon_expand_vector_init): New function. Expand a (possibly
    non-constant) vector initialization.
    (neon_vector_mem_operand): New function. Memory operands supported
    for quad-word loads/stores to/from ARM or NEON registers. Don't
    allow base+offset addressing for core regs.
    (neon_struct_mem_operand): New function. Valid mems for NEON
    structure moves.
    (coproc_secondary_reload_class): Enable NEON registers to be loaded
    from neon_vector_mem_operand addresses without a secondary register.
    (add_minipool_forward_ref): Handle >8-byte minipool entries.
    (add_minipool_backward_ref): Likewise.
    (dump_minipool): Likewise.
    (push_minipool_fix): Likewise.
    (output_move_quad): New function. Output quad-word moves, loads and
    stores using ARM registers.
    (output_move_vfp): Add support for vectors in VFP (NEON) D
    registers.
    (output_move_neon): Output a NEON load/store to/from a quadword
    register.
    (arm_print_operand): Implement new codes:
    - 'c' for unadorned integers (without a # sign).
    - 'J', 'K' for reg+2/reg+3, reg+3/reg+2 in little/big-endian
    mode.
    - 'e', 'f' for the low and high D parts of a NEON Q register.
    - 'q' outputs a NEON Q register.
    - 'h' outputs ranges of D registers for VLDM/VSTM etc.
    - 'T' prints NEON opcode features from a coded bitmask.
    - 'F' is similar to T, but signed/unsigned codes both print as
    'i'.
    - 't' is similar to T, but 'u' is printed instead of 'p'.
    - 'O' prints 'r' if NEON instruction should perform rounding (as
    specified by bitmask), else prints nothing.
    - '#' is a punctuation character to stop operand numbers from
    running together with following digits in the assembler
    strings for instructions (when using mode attributes).
    (arm_assemble_integer): Handle extra NEON vector modes. Permute
    constant vectors in big-endian mode, where necessary.
    (arm_hard_regno_mode_ok): Allow vectors in VFP/NEON registers.
    Handle EI, OI, CI, XI modes.
    (ashlv4hi3, ashlv2si3, lshrv4hi3, lshrv2si3, ashrv4hi3)
    (ashrv2si3): Rename IWMMXT2_BUILTINs to...
    (ashlv4hi3_iwmmxt, ashlv2si3_iwmmxt, lshrv4hi3_iwmmxt)
    (lshrv2si3_iwmmxt, ashrv4hi3_iwmmxt, ashrv2si3_iwmmxt): New names.
    (neon_builtin_type_bits): Add enumeration, one bit for each vector
    type.
    (v8qi_UP, v4hi_UP, v2si_UP, v2sf_UP, di_UP, v16qi_UP, v8hi_UP)
    (v4si_UP, v4sf_UP, v2di_UP, ti_UP, ei_UP, oi_UP, UP): Define macros
    to turn v8qi, etc. into bits defined above.
    (neon_itype): New enumeration. Classifications of NEON builtins.
    (neon_builtin_datum): Define struct. Contains information about
    a single builtin (with multiple modes).
    (CF): Define helper macro for...
    (VAR1...VAR10): Define builtins with a type, name and 1-10 different
    modes.
    (neon_builtin_data): New array. Define information about builtins
    for use during initialization/expansion.
    (arm_init_neon_builtins): New function.
    (arm_init_builtins): Call arm_init_neon_builtins if TARGET_NEON is
    true.
    (neon_builtin_compare): New function.
    (locate_neon_builtin_icode): New function. Find an insn code for a
    builtin given a function code for that builtin. Also return type of
    builtin (NEON_BINOP, NEON_UNOP etc.).
    (builtin_arg): New enumeration. Types of arguments for builtins.
    (arm_expand_neon_args): New function. Expand a generic NEON builtin.
    Takes a variable argument list of builtin_arg types, terminated by
    NEON_ARG_STOP.
    (arm_expand_neon_builtin): New function. Expand a NEON builtin.
    (neon_reinterpret): New function. Expand NEON reinterpret intrinsic.
    (neon_emit_pair_result_insn): New function. Support returning pairs
    of vectors via a pointer.
    (neon_disambiguate_copy): New function. Set up operands for a
    multi-word copy such that registers do not get clobbered.
    (arm_expand_builtin): Call arm_expand_neon_builtin if fcode >=
    ARM_BUILTIN_NEON_BASE.
    (arm_file_start): Set float-abi attribute for NEON.
    (arm_vector_mode_supported_p): Enable NEON vector modes.
    (arm_mangle_map_entry): New.
    (arm_mangle_map): New.
    (arm_mangle_vector_type): New.
    * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __ARM_NEON__
    when appropriate.
    (TARGET_NEON): New macro. Target supports NEON.
    (fputype): Add FPUTYPE_NEON.
    (UNITS_PER_SIMD_WORD): Define. Allow quad-word registers to be used
    for vectorization based on command-line arg.
    (NEON_REGNO_OK_FOR_NREGS): Define.
    (VALID_NEON_DREG_MODE, VALID_NEON_QREG_MODE)
    (VALID_NEON_STRUCT_MODE): Define.
    (PRINT_OPERAND_PUNCT_VALID_P): '#' is valid punctuation.
    (arm_builtins): Add ARM_BUILTIN_NEON_BASE.
    * config/arm/arm.md (VUNSPEC_POOL_16): Insert constant for unspec.
    (consttable_16): Add pattern for outputting 16-byte minipool
    entries.
    (movv2si, movv4hi, movv8qi): Remove blank expanders (redefined in
    vec-common.md).
    (vec-common.md, neon.md): Include md files.
    * config/arm/arm.opt (mvectorize-with-neon-quad): Add option.
    * config/arm/constraints.md (constraint "Dn", "Dl", "DL"): Define.
    (memory_constraint "Ut", "Un", "Us"): Define.
    * config/arm/iwmmxt.md (VMMX, VSHFT): New mode macros.
    (MMX_char): New mode attribute.
    (addv8qi3, addv4hi3, addv2si3): Remove. Replace with...
    (*add<mode>3_iwmmxt): New insn pattern.
    (subv8qi3, subv4hi3, subv2si3): Remove. Replace with...
    (*sub<mode>3_iwmmxt): New insn pattern.
    (mulv4hi3): Rename to...
    (*mulv4hi3_iwmmxt): This.
    (smaxv8qi3, smaxv4hi3, smaxv2si3, umaxv8qi3, umaxv4hi3)
    (umaxv2si3, sminv8qi3, sminv4hi3, sminv2si3, uminv8qi3)
    (uminv4hi3, uminv2si3): Remove. Replace with...
    (*smax<mode>3_iwmmxt, *umax<mode>3_iwmmxt, *smin<mode>3_iwmmxt)
    (*umin<mode>3_iwmmxt): These.
    (ashrv4hi3, ashrv2si3, ashrdi3_iwmmxt): Replace with...
    (ashr<mode>3_iwmmxt): This new pattern.
    (lshrv4hi3, lshrv2si3, lshrdi3_iwmmxt): Replace with...
    (lshr<mode>3_iwmmxt): This new pattern.
    (ashlv4hi3, ashlv2si3, ashldi3_iwmmxt): Replace with...
    (ashl<mode>3_iwmmxt): This new pattern.
    * config/arm/neon-docgen.ml: New file. Generate documentation for
    intrinsics.
    * config/arm/neon-gen.ml: New file. Generate arm_neon.h header.
    * config/arm/arm_neon.h: New (autogenerated).
    * config/arm/neon-testgen.ml: New file. Generate NEON tests
    automatically.
    * config/arm/neon.md: New file. Define NEON instructions.
    * config/arm/neon.ml: New file. Abstract description of NEON
    instructions, used to generate arm_neon.h header, documentation and tests.
    * config/arm/t-arm (MD_INCLUDES): Add vec-common.md, neon.md.
    * vec-common.md: New file. Shared parts for iWMMXt and NEON vector
    support.
    * doc/extend.texi (ARM Built-in Functions): Rename and remove
    extraneous comma.
    (ARM NEON Intrinsics): New subsection.
    * doc/arm-neon-intrinsics.texi: New (autogenerated).

    gcc/testsuite/
    * gcc.dg/vect/vect.exp: Check is-effective-target arm_neon_hw.
    * gcc.dg/vect/tree-vect.h: Check for NEON SIMD support.
    * lib/gcc-dg.exp (cleanup-saved-temps): Fix comment.
    * lib/target-supports.exp (check_effective_target_arm_neon_ok)
    (check_effective_target_arm_neon_hw): New.
    * gcc.target/arm/neon/neon.exp: New file.
    * gcc.target/arm/neon/polytypes.c: New file.
    * gcc.target/arm/neon/v*.c (1870 files): New (autogenerated).


Co-Authored-By: Joseph Myers <joseph@codesourcery.com>
Co-Authored-By: Mark Shinwell <shinwell@codesourcery.com>
Co-Authored-By: Paul Brook <paul@codesourcery.com>

From-SVN: r126911