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Re: [RFC v4 16/70] target/riscv: rvv:1.0: add translation-time nan-box h
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From: |
Richard Henderson |
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Subject: |
Re: [RFC v4 16/70] target/riscv: rvv:1.0: add translation-time nan-box helper function |
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Date: |
Sat, 29 Aug 2020 10:53:21 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 8/17/20 1:49 AM, frank.chang@sifive.com wrote:
> From: Frank Chang <frank.chang@sifive.com>
>
> * Add fp16 nan-box check generator function, if a 16-bit input is not
> properly nanboxed, then the input is replaced with the default qnan.
> * Add do_nanbox() helper function to utilize gen_check_nanbox_X() to
> generate the NaN-boxed floating-point values based on SEW setting.
> * Apply nanbox helper in opfvf_trans
>
> Signed-off-by: Frank Chang <frank.chang@sifive.com>
> ---
> target/riscv/insn_trans/trans_rvv.inc.c | 35 ++++++++++++++++++++++++-
> target/riscv/translate.c | 10 +++++++
> 2 files changed, 44 insertions(+), 1 deletion(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
- [RFC v4 10/70] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers, (continued)
- [RFC v4 10/70] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers, frank . chang, 2020/08/17
- [RFC v4 11/70] target/riscv: rvv-1.0: remove MLEN calculations, frank . chang, 2020/08/17
- [RFC v4 12/70] target/riscv: rvv-1.0: add fractional LMUL, frank . chang, 2020/08/17
- [RFC v4 14/70] target/riscv: rvv-1.0: update check functions, frank . chang, 2020/08/17
- [RFC v4 13/70] target/riscv: rvv-1.0: add VMA and VTA, frank . chang, 2020/08/17
- [RFC v4 15/70] target/riscv: introduce more imm value modes in translator functions, frank . chang, 2020/08/17
- [RFC v4 16/70] target/riscv: rvv:1.0: add translation-time nan-box helper function, frank . chang, 2020/08/17
- Re: [RFC v4 16/70] target/riscv: rvv:1.0: add translation-time nan-box helper function,
Richard Henderson <=
- [RFC v4 17/70] target/riscv: rvv-1.0: configure instructions, frank . chang, 2020/08/17
- [RFC v4 18/70] target/riscv: rvv-1.0: stride load and store instructions, frank . chang, 2020/08/17
- [RFC v4 19/70] target/riscv: rvv-1.0: index load and store instructions, frank . chang, 2020/08/17
- [RFC v4 20/70] target/riscv: rvv-1.0: fix address index overflow bug of indexed load/store insns, frank . chang, 2020/08/17
- [RFC v4 21/70] target/riscv: rvv-1.0: fault-only-first unit stride load, frank . chang, 2020/08/17
- [RFC v4 22/70] target/riscv: rvv-1.0: amo operations, frank . chang, 2020/08/17