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This patch creates the required framework for MVE ACLE intrinsics. The following changes are done in this patch to support MVE ACLE intrinsics. Header file arm_mve.h is added to source code, which contains the definitions of MVE ACLE intrinsics and different data types used in MVE. Machine description file mve.md is also added which contains the RTL patterns defined for MVE. A new reigster "p0" is added which is used in by MVE predicated patterns. A new register class "VPR_REG" is added and its contents are defined in REG_CLASS_CONTENTS. The vec-common.md file is modified to support the standard move patterns. The prefix of neon functions which are also used by MVE is changed from "neon_" to "simd_". eg: neon_immediate_valid_for_move changed to simd_immediate_valid_for_move. In the patch standard patterns mve_move, mve_store and move_load for MVE are added and neon.md and vfp.md files are modified to support this common patterns. Please refer to Arm reference manual [1] for more details. [1] https://developer.arm.com/docs/ddi0553/latest 2020-03-06 Andre Vieira <andre.simoesdiasvieira@arm.com> Mihail Ionescu <mihail.ionescu@arm.com> Srinath Parvathaneni <srinath.parvathaneni@arm.com> * config.gcc (arm_mve.h): Include mve intrinsics header file. * config/arm/aout.h (p0): Add new register name for MVE predicated cases. * config/arm-builtins.c (ARM_BUILTIN_SIMD_LANE_CHECK): Define macro common to Neon and MVE. (ARM_BUILTIN_NEON_LANE_CHECK): Renamed to ARM_BUILTIN_SIMD_LANE_CHECK. (arm_init_simd_builtin_types): Disable poly types for MVE. (arm_init_neon_builtins): Move a check to arm_init_builtins function. (arm_init_builtins): Use ARM_BUILTIN_SIMD_LANE_CHECK instead of ARM_BUILTIN_NEON_LANE_CHECK. (mve_dereference_pointer): Add function. (arm_expand_builtin_args): Call to mve_dereference_pointer when MVE is enabled. (arm_expand_neon_builtin): Moved to arm_expand_builtin function. (arm_expand_builtin): Moved from arm_expand_neon_builtin function. * config/arm/arm-c.c (__ARM_FEATURE_MVE): Define macro for MVE and MVE with floating point enabled. * config/arm/arm-protos.h (neon_immediate_valid_for_move): Renamed to simd_immediate_valid_for_move. (simd_immediate_valid_for_move): Renamed from neon_immediate_valid_for_move function. * config/arm/arm.c (arm_options_perform_arch_sanity_checks): Generate error if vfpv2 feature bit is disabled and mve feature bit is also disabled for HARD_FLOAT_ABI. (use_return_insn): Check to not push VFP regs for MVE. (aapcs_vfp_allocate): Add MVE check to have same Procedure Call Standard as Neon. (aapcs_vfp_allocate_return_reg): Likewise. (thumb2_legitimate_address_p): Check to return 0 on valid Thumb-2 address operand for MVE. (arm_rtx_costs_internal): MVE check to determine cost of rtx. (neon_valid_immediate): Rename to simd_valid_immediate. (simd_valid_immediate): Rename from neon_valid_immediate. (simd_valid_immediate): MVE check on size of vector is 128 bits. (neon_immediate_valid_for_move): Rename to simd_immediate_valid_for_move. (simd_immediate_valid_for_move): Rename from neon_immediate_valid_for_move. (neon_immediate_valid_for_logic): Modify call to neon_valid_immediate function. (neon_make_constant): Modify call to neon_valid_immediate function. (neon_vector_mem_operand): Return VFP register for POST_INC or PRE_DEC for MVE. (output_move_neon): Add MVE check to generate vldm/vstm instrcutions. (arm_compute_frame_layout): Calculate space for saved VFP registers for MVE. (arm_save_coproc_regs): Save coproc registers for MVE. (arm_print_operand): Add case 'E' to print memory operands for MVE. (arm_print_operand_address): Check to print register number for MVE. (arm_hard_regno_mode_ok): Check for arm hard regno mode ok for MVE. (arm_modes_tieable_p): Check to allow structure mode for MVE. (arm_regno_class): Add VPR_REGNUM check. (arm_expand_epilogue_apcs_frame): MVE check to calculate epilogue code for APCS frame. (arm_expand_epilogue): MVE check for enabling pop instructions in epilogue. (arm_print_asm_arch_directives): Modify function to disable print of .arch_extension "mve" and "fp" for cases where MVE is enabled with "SOFT FLOAT ABI". (arm_vector_mode_supported_p): Check for modes available in MVE interger and MVE floating point. (arm_array_mode_supported_p): Add TARGET_HAVE_MVE check for array mode pointer support. (arm_conditional_register_usage): Enable usage of conditional regsiter for MVE. (fixed_regs[VPR_REGNUM]): Enable VPR_REG for MVE. (arm_declare_function_name): Modify function to disable print of .arch_extension "mve" and "fp" for cases where MVE is enabled with "SOFT FLOAT ABI". * config/arm/arm.h (TARGET_HAVE_MVE): Disable for soft float abi and when target general registers are required. (TARGET_HAVE_MVE_FLOAT): Likewise. (FIXED_REGISTERS): Add bit for VFP_REG class which is enabled in arm.c for MVE. (CALL_USED_REGISTERS): Set bit for VFP_REG class in CALL_USED_REGISTERS which indicate this is not available for across function calls. (FIRST_PSEUDO_REGISTER): Modify. (VALID_MVE_MODE): Define valid MVE mode. (VALID_MVE_SI_MODE): Define valid MVE SI mode. (VALID_MVE_SF_MODE): Define valid MVE SF mode. (VALID_MVE_STRUCT_MODE): Define valid MVE struct mode. (VPR_REGNUM): Add Vector Predication Register in arm_regs_in_sequence for MVE. (IS_VPR_REGNUM): Macro to check for VPR_REG register. (REG_ALLOC_ORDER): Add VPR_REGNUM entry. (enum reg_class): Add VPR_REG entry. (REG_CLASS_NAMES): Add VPR_REG entry. * config/arm/arm.md (VPR_REGNUM): Define. (conds): Check is_mve_type attrbiute to differentiate "conditional" and "unconditional" instructions. (arm_movsf_soft_insn): Modify RTL to not allow for MVE. (movdf_soft_insn): Modify RTL to not allow for MVE. (vfp_pop_multiple_with_writeback): Enable for MVE. (include "mve.md"): Include mve.md file. * config/arm/arm_mve.h: Add MVE intrinsics head file. * config/arm/constraints.md (Up): Constraint to enable "p0" register in MVE for vector predicated operands. * config/arm/iterators.md (VNIM1): Define. (VNINOTM1): Define. (VHFBF_split): Define * config/arm/mve.md: New file. (mve_mov<mode>): Define RTL for move, store and load in MVE. (mve_mov<mode>): Define move RTL pattern with vec_duplicate operator for second operand. * config/arm/neon.md (neon_immediate_valid_for_move): Rename with simd_immediate_valid_for_move. (neon_mov<mode>): Split pattern and move expand pattern "movv8hf" which is common to MVE and NEON to vec-common.md file. (vec_init<mode><V_elem_l>): Add TARGET_HAVE_MVE check. * config/arm/predicates.md (vpr_register_operand): Define. * config/arm/t-arm: Add mve.md file. * config/arm/types.md (mve_move): Add MVE instructions mve_move to attribute "type". (mve_store): Add MVE instructions mve_store to attribute "type". (mve_load): Add MVE instructions mve_load to attribute "type". (is_mve_type): Define attribute. * config/arm/vec-common.md (mov<mode>): Modify RTL expand to support standard move patterns in MVE along with NEON and IWMMXT with mode iterator VNIM1. (mov<mode>): Modify RTL expand to support standard move patterns in NEON and IWMMXT with mode iterator V8HF. (movv8hf): Define RTL expand to support standard "movv8hf" pattern in NEON and MVE. * config/arm/vfp.md (neon_immediate_valid_for_move): Rename to simd_immediate_valid_for_move. 2020-03-16 Andre Vieira <andre.simoesdiasvieira@arm.com> Mihail Ionescu <mihail.ionescu@arm.com> Srinath Parvathaneni <srinath.parvathaneni@arm.com> * gcc.target/arm/mve/intrinsics/mve_vector_float.c: New test. * gcc.target/arm/mve/intrinsics/mve_vector_float1.c: Likewise. * gcc.target/arm/mve/intrinsics/mve_vector_float2.c: Likewise. * gcc.target/arm/mve/intrinsics/mve_vector_int.c: Likewise. * gcc.target/arm/mve/intrinsics/mve_vector_int1.c: Likewise. * gcc.target/arm/mve/intrinsics/mve_vector_int2.c: Likewise. * gcc.target/arm/mve/intrinsics/mve_vector_uint.c: Likewise. * gcc.target/arm/mve/intrinsics/mve_vector_uint1.c: Likewise. * gcc.target/arm/mve/intrinsics/mve_vector_uint2.c: Likewise. * gcc.target/arm/mve/mve.exp: New file. * lib/target-supports.exp (check_effective_target_arm_v8_1m_mve_fp_ok_nocache): Proc to check armv8.1-m.main+mve.fp and returning corresponding options. (check_effective_target_arm_v8_1m_mve_fp_ok): Proc to call check_effective_target_arm_v8_1m_mve_fp_ok_nocache to check support of MVE with floating point on the current target. (add_options_for_arm_v8_1m_mve_fp): Proc to call check_effective_target_arm_v8_1m_mve_fp_ok to return corresponding compiler options for MVE with floating point. (check_effective_target_arm_v8_1m_mve_ok_nocache): Modify to test and return hard float-abi on success. |
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