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merged 3 commits into from
Apr 11, 2025
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arcv: simplify multilib configurations and cover more cases #147

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8447c92
arcv: simplify multilib configurations and cover more cases
kolerov Feb 28, 2025
7822918
fixup! arcv: simplify multilib configurations and cover more cases
kolerov Mar 28, 2025
d067383
arcv: Make -mtune=arc-v-rmx-100-series a default for ARC-V
kolerov Apr 10, 2025
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12 changes: 12 additions & 0 deletions gcc/config.gcc
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Original file line number Diff line number Diff line change
Expand Up @@ -4910,6 +4910,18 @@ case "${target}" in
exit 1
esac
fi

# Handle --with-tune.
if test "x${with_tune}" = xdefault; then
case ${target} in
*-snps-*)
# Use a default mtune for Synopsys ARC-V.
with_tune=arc-v-rmx-100-series
;;
*)
;;
esac
fi
;;

mips*-*-*)
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189 changes: 102 additions & 87 deletions gcc/config/riscv/t-arcv
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Expand Up @@ -6,123 +6,138 @@ MULTILIB_DIRNAMES =
MULTILIB_REQUIRED =
MULTILIB_REUSE =

# Fallback configurations
# -march multilib options for RMX-100 mini
arcv_march_variants = rv32e
arcv_march_variants += rv32e_zicsr
arcv_march_variants += rv32em
arcv_march_variants += rv32ea
arcv_march_variants += rv32ema
arcv_march_variants += rv32emac_zcb_zba_zbb_zbs_zfinx_zdinx

# -march multilib options for RMX-100 and RMX-500
arcv_march_variants += rv32i
arcv_march_variants += rv32i_zicsr
arcv_march_variants += rv32ic
arcv_march_variants += rv32ic_zicsr
arcv_march_variants += rv32ia
arcv_march_variants += rv32ia_zicsr
arcv_march_variants += rv32im
arcv_march_variants += rv32im_zicsr
arcv_march_variants += rv32iac
arcv_march_variants += rv32iac_zicsr
arcv_march_variants += rv32imc
arcv_march_variants += rv32imc_zicsr
arcv_march_variants += rv32ia
arcv_march_variants += rv32ima
arcv_march_variants += rv32iac
arcv_march_variants += rv32imac
arcv_march_variants += rv32imac_zicsr
arcv_march_variants += rv32ic_zcb_zba_zbb_zbs
arcv_march_variants += rv32imc_zcb_zba_zbb_zbs
arcv_march_variants += rv32imac_zcb_zba_zbb_zbs
arcv_march_variants += rv32imac_zcb_zba_zbb_zbs_zfinx
arcv_march_variants += rv32imac_zcb_zba_zbb_zbs_zfinx_zdinx
arcv_march_variants += rv32i_zba_zbb_zbs
arcv_march_variants += rv32im_zba_zbb_zbs
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IIRC, the most critical insns for strcmp() are or.b and rev8 which are both part of Zbb. Should we create a fallback without Zba and Zbs, but with Zbb?

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I don't think that it's reasonable now. There could be too many of such fallbacks with a single zbb for all possible variants of march.

arcv_march_variants += rv32ima_zba_zbb_zbs
arcv_march_variants += rv32ima_zba_zbb_zbs_zfinx
arcv_march_variants += rv32ima_zba_zbb_zbs_zfinx_zdinx

# -march multilib options for RHX-100 (basic combinations are covered
# in RMX-100 and RMX-500 list)
arcv_march_variants += rv32imafc
arcv_march_variants += rv32imafdc
arcv_march_variants += rv32imafd_zca
arcv_march_variants += rv32imafc_zcb_zba_zbb_zbs
arcv_march_variants += rv32imafd_zca_zcb_zba_zbb_zbs

# -march multilib options for RPX-100
arcv_march_variants += rv64i
arcv_march_variants += rv64i_zicsr
arcv_march_variants += rv64ic
arcv_march_variants += rv64im
arcv_march_variants += rv64imc
arcv_march_variants += rv64ia
arcv_march_variants += rv64ima
arcv_march_variants += rv64iac
arcv_march_variants += rv64imac
arcv_march_variants += rv64imac_zicsr
arcv_march_variants += rv64imafdc

# RMX-100 mini
arcv_march_variants += rv32emac_zcb_zcmp_zcmt_zba_zbb_zbs_zfinx_zdinx_zicsr

# RMX-100/500
arcv_march_variants += rv32ic_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr
arcv_march_variants += rv32im_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr
arcv_march_variants += rv32im_zba_zbb_zbs_zicsr
arcv_march_variants += rv32imc_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr
arcv_march_variants += rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr
arcv_march_variants += rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zfinx_zicsr
arcv_march_variants += rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zfinx_zdinx_zicsr

# RHX-100
arcv_march_variants += rv32imac_zcb_zcmp_zba_zbb_zbs_zicsr
arcv_march_variants += rv32imafc_zcb_zcmp_zba_zbb_zbs_zicsr
arcv_march_variants += rv32imafd_zca_zcb_zcmp_zba_zbb_zbs_zicsr

# RPX-100
arcv_march_variants += rv64imac_zcb_zba_zbb_zbs_zicsr
arcv_march_variants += rv64imafdc_zcb_zba_zbb_zbs_zicsr
arcv_march_variants += rv64imac_zcb_zba_zbb_zbs
arcv_march_variants += rv64imafdc_zcb_zba_zbb_zbs

MULTILIB_OPTIONS += $(subst $(space),/,$(patsubst %,march=%,$(arcv_march_variants)))
MULTILIB_DIRNAMES += $(arcv_march_variants)

MULTILIB_OPTIONS += mabi=ilp32e/mabi=ilp32/mabi=ilp32f/mabi=ilp32d/mabi=lp64/mabi=lp64d
MULTILIB_DIRNAMES += ilp32e ilp32 ilp32f ilp32d lp64 lp64d

MULTILIB_OPTIONS += mtune=arc-v-rmx-100-series/mtune=arc-v-rmx-500-series/mtune=arc-v-rhx-100-series/mtune=arc-v-rpx-100-series
MULTILIB_DIRNAMES += rmx100 rmx500 rhx100 rpx100
MULTILIB_OPTIONS += mtune=arc-v-rmx-500-series/mtune=arc-v-rhx-100-series/mtune=arc-v-rpx-100-series
MULTILIB_DIRNAMES += rmx500 rhx100 rpx100

MULTILIB_OPTIONS += mcmodel=medany
MULTILIB_DIRNAMES += medany

# Fallback configurations for general targets
MULTILIB_REQUIRED += march=rv32i/mabi=ilp32

# Fallback configurations for RMX-100 mini
MULTILIB_REQUIRED += march=rv32e/mabi=ilp32e/mtune=arc-v-rmx-100-series
# Configurations for RMX-100 mini
MULTILIB_REQUIRED += march=rv32e/mabi=ilp32e
MULTILIB_REQUIRED += march=rv32em/mabi=ilp32e
MULTILIB_REQUIRED += march=rv32ea/mabi=ilp32e
MULTILIB_REQUIRED += march=rv32ema/mabi=ilp32e
MULTILIB_REQUIRED += march=rv32emac_zcb_zba_zbb_zbs_zfinx_zdinx/mabi=ilp32e

# Fallback configurations for RMX-100
MULTILIB_REQUIRED += march=rv32i/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32ia/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32imc_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32iac_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32imac_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series

# Fallback configurations for RMX-500
# Configurations for RMX-100 - general
MULTILIB_REQUIRED += march=rv32i/mabi=ilp32
MULTILIB_REQUIRED += march=rv32ic/mabi=ilp32
MULTILIB_REQUIRED += march=rv32im/mabi=ilp32
MULTILIB_REQUIRED += march=rv32ia/mabi=ilp32
MULTILIB_REQUIRED += march=rv32ima/mabi=ilp32
MULTILIB_REQUIRED += march=rv32iac/mabi=ilp32
MULTILIB_REQUIRED += march=rv32imac/mabi=ilp32

# Configurations for RMX-100 - optimized
MULTILIB_REQUIRED += march=rv32ic_zcb_zba_zbb_zbs/mabi=ilp32
MULTILIB_REQUIRED += march=rv32imc_zcb_zba_zbb_zbs/mabi=ilp32
MULTILIB_REQUIRED += march=rv32imac_zcb_zba_zbb_zbs/mabi=ilp32
MULTILIB_REQUIRED += march=rv32imac_zcb_zba_zbb_zbs_zfinx/mabi=ilp32
MULTILIB_REQUIRED += march=rv32imac_zcb_zba_zbb_zbs_zfinx_zdinx/mabi=ilp32

# Configurations for RMX-100 - optimized (without C and Zc*)
MULTILIB_REQUIRED += march=rv32i_zba_zbb_zbs/mabi=ilp32
MULTILIB_REQUIRED += march=rv32im_zba_zbb_zbs/mabi=ilp32
MULTILIB_REQUIRED += march=rv32ima_zba_zbb_zbs/mabi=ilp32
MULTILIB_REQUIRED += march=rv32ima_zba_zbb_zbs_zfinx/mabi=ilp32
MULTILIB_REQUIRED += march=rv32ima_zba_zbb_zbs_zfinx_zdinx/mabi=ilp32

# Configurations for RMX-500 - general
MULTILIB_REQUIRED += march=rv32i/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32ic/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32im/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32ia/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imc_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32iac_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imac_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series

# Fallback configurations for RHX-100
MULTILIB_REQUIRED += march=rv32ima/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32iac/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imac/mabi=ilp32/mtune=arc-v-rmx-500-series

# Configurations for RMX-500 - optimized
MULTILIB_REQUIRED += march=rv32ic_zcb_zba_zbb_zbs/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imc_zcb_zba_zbb_zbs/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zba_zbb_zbs/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zba_zbb_zbs_zfinx/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zba_zbb_zbs_zfinx_zdinx/mabi=ilp32/mtune=arc-v-rmx-500-series

# Configurations for RHX-100 - general
MULTILIB_REQUIRED += march=rv32i/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32ic/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32im/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32ia/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imac_zicsr/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32ima/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32iac/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imac/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imafc/mabi=ilp32f/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imafdc/mabi=ilp32d/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imafd_zca/mabi=ilp32d/mtune=arc-v-rhx-100-series

# Configurations for RHX-100 - optimized
MULTILIB_REQUIRED += march=rv32imac_zcb_zba_zbb_zbs/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imafc_zcb_zba_zbb_zbs/mabi=ilp32f/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imafd_zca_zcb_zba_zbb_zbs/mabi=ilp32d/mtune=arc-v-rhx-100-series

# Fallback configurations for RPX-100
# Configurations for RPX-100 - general
MULTILIB_REQUIRED += march=rv64i/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64ic/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64im/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64imc/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64ia/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64imac_zicsr/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64ima/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64iac/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64imac/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64imafdc/mabi=lp64d/mtune=arc-v-rpx-100-series/mcmodel=medany

# RMX-100 mini
MULTILIB_REQUIRED += march=rv32emac_zcb_zcmp_zcmt_zba_zbb_zbs_zfinx_zdinx_zicsr/mabi=ilp32e/mtune=arc-v-rmx-100-series

# RMX-100
MULTILIB_REQUIRED += march=rv32im_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32ic_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32im_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32imc_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zfinx_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zfinx_zdinx_zicsr/mabi=ilp32/mtune=arc-v-rmx-100-series

# RMX-500
MULTILIB_REQUIRED += march=rv32ic_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32im_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imc_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zfinx_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series
MULTILIB_REQUIRED += march=rv32imac_zcb_zcmp_zcmt_zba_zbb_zbs_zfinx_zdinx_zicsr/mabi=ilp32/mtune=arc-v-rmx-500-series

# RHX-100
MULTILIB_REQUIRED += march=rv32imac_zcb_zcmp_zba_zbb_zbs_zicsr/mabi=ilp32/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imafc_zcb_zcmp_zba_zbb_zbs_zicsr/mabi=ilp32f/mtune=arc-v-rhx-100-series
MULTILIB_REQUIRED += march=rv32imafd_zca_zcb_zcmp_zba_zbb_zbs_zicsr/mabi=ilp32d/mtune=arc-v-rhx-100-series

# RPX-100
MULTILIB_REQUIRED += march=rv64imac_zcb_zba_zbb_zbs_zicsr/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64imafdc_zcb_zba_zbb_zbs_zicsr/mabi=lp64d/mtune=arc-v-rpx-100-series/mcmodel=medany
# Configurations for RPX-100 - optimized
MULTILIB_REQUIRED += march=rv64imac_zcb_zba_zbb_zbs/mabi=lp64/mtune=arc-v-rpx-100-series/mcmodel=medany
MULTILIB_REQUIRED += march=rv64imafdc_zcb_zba_zbb_zbs/mabi=lp64d/mtune=arc-v-rpx-100-series/mcmodel=medany