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Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing
From: |
Richard Henderson |
Subject: |
Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing |
Date: |
Thu, 23 Jan 2020 08:52:54 -1000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
On 1/22/20 6:05 PM, Ian Jiang wrote:
> But I am not clear where to call this new helper gen_nanbox_fpr(). Is
> there a position that could affect all floating-point instructions? So
> that we don't have to modify so many translating functions. Please
> give more details.
No, this will have to be called for each instruction individually.
That said, all of the insns that use helper functions, such as fsqrt_s, should
be doing the nan-boxing within the helper function. Thus you'll want a
different helper function for use within fpu_helper.c.
r~
- [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing, Ian Jiang, 2020/01/22
- Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing, Richard Henderson, 2020/01/22
- Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing, Ian Jiang, 2020/01/22
- Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing, Richard Henderson, 2020/01/22
- Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing, Ian Jiang, 2020/01/22
- Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing, Richard Henderson, 2020/01/22
- Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing, Ian Jiang, 2020/01/22
- Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing,
Richard Henderson <=
- Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing, Ian Jiang, 2020/01/27