Merge tag 'pull-target-arm-20250515' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* target/arm: refactoring for compile-twice changes
* MAINTAINERS: Add an ent

Merge tag 'pull-target-arm-20250515' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* target/arm: refactoring for compile-twice changes
* MAINTAINERS: Add an entry for the Bananapi machine
* arm/omap: remove hard coded tabs
* rust: pl011: Cut down amount of text quoted from PL011 TRM
* target/arm: refactor Arm CPU class hierarchy

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# gpg: Signature made Thu 15 May 2025 06:23:01 EDT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20250515' of https://git.linaro.org/people/pmaydell/qemu-arm: (58 commits)
target/arm/tcg/vfp_helper: compile file twice (system, user)
target/arm/tcg/arith_helper: compile file once
target/arm/tcg/tlb-insns: compile file once (system)
target/arm/helper: restrict define_tlb_insn_regs to system target
target/arm/tcg/tlb_helper: compile file twice (system, user)
target/arm/tcg/neon_helper: compile file twice (system, user)
target/arm/tcg/iwmmxt_helper: compile file twice (system, user)
target/arm/tcg/hflags: compile file twice (system, user)
target/arm/tcg/crypto_helper: compile file once
target/arm/tcg/vec_internal: use forward declaration for CPUARMState
target/arm/machine: compile file once (system)
target/arm/kvm-stub: add missing stubs
target/arm/machine: move cpu_post_load kvm bits to kvm_arm_cpu_post_load function
target/arm/machine: remove TARGET_AARCH64 from migration state
target/arm/machine: reduce migration include to avoid target specific definitions
target/arm/kvm-stub: compile file once (system)
target/arm/meson: accelerator files are not needed in user mode
target/arm/ptw: compile file once (system)
target/arm/ptw: replace TARGET_AARCH64 by CONFIG_ATOMIC64 from arm_casq_ptw
target/arm/ptw: replace target_ulong with int64_t
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

target/arm/helper: extract common helpers

Allow later commits to include only the "new" tcg/helper.h, thus
preventing to pull aarch64 helpers (+ target/arm/helper.h contains a
ifdef TARGET_AARCH64).

target/arm/helper: extract common helpers

Allow later commits to include only the "new" tcg/helper.h, thus
preventing to pull aarch64 helpers (+ target/arm/helper.h contains a
ifdef TARGET_AARCH64).

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-id: 20250512180502.2395029-16-pierrick.bouvier@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/arm/helper: use vaddr instead of target_ulong for probe_access

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Revi

target/arm/helper: use vaddr instead of target_ulong for probe_access

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250512180502.2395029-15-pierrick.bouvier@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/arm/helper: use vaddr instead of target_ulong for exception_pc_alignment

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro

target/arm/helper: use vaddr instead of target_ulong for exception_pc_alignment

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250512180502.2395029-14-pierrick.bouvier@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Merge tag 'pull-target-arm-20250211' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* target/alpha: Don't corrupt error_code with unknown softfloat flags
* targe

Merge tag 'pull-target-arm-20250211' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* target/alpha: Don't corrupt error_code with unknown softfloat flags
* target/arm: Implement FEAT_AFP and FEAT_RPRES

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# gpg: Signature made Tue 11 Feb 2025 11:24:04 EST
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20250211' of https://git.linaro.org/people/pmaydell/qemu-arm: (68 commits)
target/arm: Sink fp_status and fpcr access into do_fmlal*
target/arm: Read fz16 from env->vfp.fpcr
target/arm: Simplify DO_VFP_cmp in vfp_helper.c
target/arm: Simplify fp_status indexing in mve_helper.c
target/arm: Remove fp_status_a32
target/arm: Remove fp_status_a64
target/arm: Remove fp_status_f16_a32
target/arm: Remove fp_status_f16_a64
target/arm: Remove ah_fp_status
target/arm: Remove ah_fp_status_f16
target/arm: Remove standard_fp_status
target/arm: Remove standard_fp_status_f16
target/arm: Introduce CPUARMState.vfp.fp_status[]
target/arm: Enable FEAT_RPRES for -cpu max
target/arm: Implement increased precision FRSQRTE
target/arm: Implement increased precision FRECPE
target/arm: Plumb FEAT_RPRES frecpe and frsqrte through to new helper
target/arm: Enable FEAT_AFP for '-cpu max'
target/arm: Handle FPCR.AH in SVE FMLSLB, FMLSLT (vectors)
target/arm: Handle FPCR.AH in SVE FMLSL (indexed)
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

target/arm: Plumb FEAT_RPRES frecpe and frsqrte through to new helper

FEAT_RPRES implements an "increased precision" variant of the single
precision FRECPE and FRSQRTE instructions from an 8 bit to

target/arm: Plumb FEAT_RPRES frecpe and frsqrte through to new helper

FEAT_RPRES implements an "increased precision" variant of the single
precision FRECPE and FRSQRTE instructions from an 8 bit to a 12
bit mantissa. This applies only when FPCR.AH == 1. Note that the
halfprec and double versions of these insns retain the 8 bit
precision regardless.

In this commit we add all the plumbing to make these instructions
call a new helper function when the increased-precision is in
effect. In the following commit we will provide the actual change
in behaviour in the helpers.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/arm: Handle FPCR.AH in negation in FMLS (vector)

Handle the FPCR.AH "don't negate the sign of a NaN" semantics
in FMLS (vector), by implementing a new set of helpers for
the AH=1 case.

The f

target/arm: Handle FPCR.AH in negation in FMLS (vector)

Handle the FPCR.AH "don't negate the sign of a NaN" semantics
in FMLS (vector), by implementing a new set of helpers for
the AH=1 case.

The float_muladd_negate_product flag produces the same result
as negating either of the multiplication operands, assuming
neither of the operands are NaNs. But since FEAT_AFP does not
negate NaNs, this behaviour is exactly what we need.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/arm: Handle FPCR.AH in negation step in FMLS (indexed)

Handle the FPCR.AH "don't negate the sign of a NaN" semantics in FMLS
(indexed). We do this by creating 6 new helpers, which allow us to

target/arm: Handle FPCR.AH in negation step in FMLS (indexed)

Handle the FPCR.AH "don't negate the sign of a NaN" semantics in FMLS
(indexed). We do this by creating 6 new helpers, which allow us to
do the negation either by XOR (for AH=0) or by muladd flags
(for AH=1).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: Mostly from RTH's patch; error in index order into fns[][]
fixed]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/arm: Handle FPCR.AH in vector FABD

Split the handling of vector FABD so that it calls a different set
of helpers when FPCR.AH is 1, which implement the "no negation of
the sign of a NaN" sema

target/arm: Handle FPCR.AH in vector FABD

Split the handling of vector FABD so that it calls a different set
of helpers when FPCR.AH is 1, which implement the "no negation of
the sign of a NaN" semantics.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Merge tag 'pull-target-arm-20241217' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* remove a line of redundant code
* convert various TCG helper fns to use 'fp

Merge tag 'pull-target-arm-20241217' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* remove a line of redundant code
* convert various TCG helper fns to use 'fpst' alias
* Use float_status in helper_fcvtx_f64_to_f32
* Use float_status in helper_vfp_fcvt{ds,sd}
* Implement FEAT_XS
* hw/intc/arm_gicv3_its: Zero initialize local DTEntry etc structs
* tests/functional: update sbsa-ref firmware used in test

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# gpg: Signature made Tue 17 Dec 2024 12:17:49 EST
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20241217' of https://git.linaro.org/people/pmaydell/qemu-arm:
tests/functional: update sbsa-ref firmware used in test
hw/intc/arm_gicv3_its: Zero initialize local DTEntry etc structs
tests/tcg/aarch64: add system test for FEAT_XS
target/arm: Enable FEAT_XS for the max cpu
target/arm: Add decodetree entry for DSB nXS variant
target/arm: Add ARM_CP_ADD_TLBI_NXS type flag to TLBI insns
target/arm: Add ARM_CP_ADD_TLBI_NXS type flag for NXS insns
target/arm: Implement fine-grained-trap handling for FEAT_XS
target/arm: Use float_status in helper_vfp_fcvt{ds,sd}
target/arm: Use float_status in helper_fcvtx_f64_to_f32
target/arm: Convert neon_helper.c to use env alias
target/arm: Convert vec_helper.c to use env alias
target/arm: Convert sme_helper.c to fpst alias
target/arm: Convert sve_helper.c to fpst alias
target/arm: Convert neon_helper.c to fpst alias
target/arm: Convert vec_helper.c to fpst alias
target/arm: Convert helper-a64.c to fpst alias
target/arm: Convert vfp_helper.c to fpst alias
target/arm: remove redundant code

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

target/arm: Use float_status in helper_vfp_fcvt{ds,sd}

Pass float_status not env to match other functions.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Math

target/arm: Use float_status in helper_vfp_fcvt{ds,sd}

Pass float_status not env to match other functions.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031952.78776-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/arm: Convert neon_helper.c to use env alias

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.

target/arm: Convert neon_helper.c to use env alias

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.78525-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/arm: Convert vec_helper.c to use env alias

Allow the helpers to receive CPUARMState* directly
instead of via void*.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-b

target/arm: Convert vec_helper.c to use env alias

Allow the helpers to receive CPUARMState* directly
instead of via void*.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.78525-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/arm: Convert neon_helper.c to fpst alias

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.785

target/arm: Convert neon_helper.c to fpst alias

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.78525-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/arm: Convert vec_helper.c to fpst alias

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.7852

target/arm: Convert vec_helper.c to fpst alias

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.78525-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

target/arm: Convert vfp_helper.c to fpst alias

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.7852

target/arm: Convert vfp_helper.c to fpst alias

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241206031224.78525-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Merge tag 'pull-target-arm-20241213' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* Finish conversion of A64 decoder to decodetree
* Use float_round_to_odd in

Merge tag 'pull-target-arm-20241213' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* Finish conversion of A64 decoder to decodetree
* Use float_round_to_odd in helper_fcvtx_f64_to_f32
* Move TLBI insn emulation code out to its own source file
* docs/system/arm: fix broken links, document undocumented properties
* MAINTAINERS: correct an email address

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# CMxIsCUCpMM4WjbdJ69ZgQ==
# =wQ1l
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 13 Dec 2024 11:26:15 EST
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20241213' of https://git.linaro.org/people/pmaydell/qemu-arm: (85 commits)
target/arm: Simplify condition for tlbi_el2_cp_reginfo[]
target/arm: Move RME TLB insns to tlb-insns.c
target/arm: Move small helper functions to tlb-insns.c
target/arm: Move the TLBI OS insns to tlb-insns.c.
target/arm: Move TLBI range insns
target/arm: Move AArch64 EL3 TLBI insns
target/arm: Move the AArch64 EL2 TLBI insns
target/arm: Move AArch64 TLBI insns from v8_cp_reginfo[]
target/arm: Move TLBI insns for AArch32 EL2 to tlbi_insn_helper.c
target/arm: Move some TLBI insns to their own source file
MAINTAINERS: correct my email address
docs/system/arm/virt: document missing properties
docs/system/arm/xlnx-versal-virt: document ospi-flash property
docs/system/arm/fby35: document execute-in-place property
docs/system/arm/orangepi: update links
target/arm: Use float_round_to_odd in helper_fcvtx_f64_to_f32
target/arm: Convert FCVTL to decodetree
target/arm: Convert URECPE and URSQRTE to decodetree
target/arm: Introduce gen_gvec_urecpe, gen_gvec_ursqrte
target/arm: Convert FRECPE, FRECPX, FRSQRTE to decodetree
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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target/arm: Introduce gen_gvec_urecpe, gen_gvec_ursqrte

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 202412111630

target/arm: Introduce gen_gvec_urecpe, gen_gvec_ursqrte

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-68-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/arm: Convert handle_2misc_fcmp_zero to decodetree

This includes FCMEQ, FCMGT, FCMGE, FCMLT, FCMLE.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <ric

target/arm: Convert handle_2misc_fcmp_zero to decodetree

This includes FCMEQ, FCMGT, FCMGE, FCMLT, FCMLE.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-66-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/arm: Convert FCVT* (vector, integer) to decodetree

Remove handle_2misc_64 as these were the last insns decoded
by that function. Remove helper_advsimd_f16to[su]inth as unused;
we now always

target/arm: Convert FCVT* (vector, integer) to decodetree

Remove handle_2misc_64 as these were the last insns decoded
by that function. Remove helper_advsimd_f16to[su]inth as unused;
we now always go through helper_vfp_to[su]hh or a specialized
vector function instead.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-65-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/arm: Convert FCVTZ[SU] (vector, fixed-point) to decodetree

Remove handle_simd_shift_fpint_conv and disas_simd_shift_imm
as these were the last insns decoded by those functions.

Reviewed-by:

target/arm: Convert FCVTZ[SU] (vector, fixed-point) to decodetree

Remove handle_simd_shift_fpint_conv and disas_simd_shift_imm
as these were the last insns decoded by those functions.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-64-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/arm: Convert [US]CVTF (vector) to decodetree

Remove handle_simd_intfp_conv and handle_simd_shift_intfp_conv
as these were the last insns decoded by those functions.

Reviewed-by: Peter Maydel

target/arm: Convert [US]CVTF (vector) to decodetree

Remove handle_simd_intfp_conv and handle_simd_shift_intfp_conv
as these were the last insns decoded by those functions.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-63-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/arm: Rename helper_gvec_vcvt_[hf][su] with _rz

Emphasize that these functions use round-to-zero mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <

target/arm: Rename helper_gvec_vcvt_[hf][su] with _rz

Emphasize that these functions use round-to-zero mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-62-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/arm: Remove helper_neon_{add,sub}l_u{16,32}

These have generic equivalents: tcg_gen_vec_{add,sub}{16,32}_i64.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Hen

target/arm: Remove helper_neon_{add,sub}l_u{16,32}

These have generic equivalents: tcg_gen_vec_{add,sub}{16,32}_i64.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-48-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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target/arm: Introduce gen_gvec_{s,u}{add,ada}lp

Pairwise addition with and without accumulation.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.hend

target/arm: Introduce gen_gvec_{s,u}{add,ada}lp

Pairwise addition with and without accumulation.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241211163036.2297116-46-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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