Thanks,
Srinath
##############################
Hello,
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
Regression tested on arm-none-eabi and found no regressions.
Ok for trunk?
Thanks,
Srinath
gcc/ChangeLog:
2020-02-10 Andre Vieira <andre.simoesdiasvie...@arm.com>
Mihail Ionescu <mihail.ione...@arm.com>
Srinath Parvathaneni <srinath.parvathan...@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 VPR_REG
in MVE
for predicated operands.
* config/arm/iterators.md (VNIM1): Define.
(VNINOTM1): Define.
(VSTRUCT): Modify.
* 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.
(mov<mode>): Enable all the NEON move pattern with VSTRUCT
mode in MVE
as well.
(movv4hf): Define.
(neon_mov<mode>): Add TARGET_HAVE_MVE check.
(define_split): Add TARGET_HAVE_MVE check.
(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.
gcc/testsuite/ChangeLog:
2020-02-10 Andre Vieira <andre.simoesdiasvie...@arm.com>
Mihail Ionescu <mihail.ione...@arm.com>
Srinath Parvathaneni <srinath.parvathan...@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_ok_nocache): Proc to check
armv8.1-m.main+mve and returning corresponding options.
(check_effective_target_arm_v8_1m_mve_ok): Proc to call
check_effective_target_arm_v8_1m_mve_ok_nocache to check
suppoer of MVE
on the current target.
(add_options_for_arm_v8_1m_mve): Proc to call
check_effective_target_arm_v8_1m_mve_ok to return
corresponding compiler
options for MVE.
(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
suppoer 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.
