Re: [PATCH 0/3] Fix RVV calling incorrect RFV/RVD check functions bug

[Frank Chang <frank.chang@sifive.com>]

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<frank.chang@sifive.com> 於 2021年12月29日 週三 上午10:13寫道：

> From: Frank Chang <frank.chang@sifive.com>
>
> For vector widening and narrowing floating-point instructions, we should
> use require_scale_rvf() instead of require_rvf() to check whether the
> correspond RVF/RVD is enabled if either source or destination
> floating-point operand is double-width of SEW. Otherwise, illegal
> instruction exception should be raised.
>
> e.g. For SEW=16, if the source/destination floating-point operand is
> double-width of SEW, RVF needs to be enabled. Otherwise, an illegal
> instruction exception will be raised. Similarly, for SEW=32, RVD
> needs to be enabled.
>
> Frank Chang (3):
>   target/riscv: rvv-1.0: Call the correct RVF/RVD check funtion for
>     widening fp insns
>   target/riscv: rvv-1.0: Call the correct RVF/RVD check funtion for
>     widening fp/int type-convert insns
>   target/riscv: rvv-1.0: Call the correct RVF/RVD check funtion for
>     narrowing fp/int type-convert insns


Oops, I misspell the word "function" in the patch titles.
I will correct it in my next patchset.

Regards,
Frank Chang


>


>  target/riscv/insn_trans/trans_rvv.c.inc | 78 ++++++++++++++++++-------
>  1 file changed, 57 insertions(+), 21 deletions(-)
>
> --
> 2.31.1
>
>
>

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