Re: RISC-V vector extension cauldron discussion

2018-09-28 Thread Palmer Dabbelt
On Tue, 11 Sep 2018 14:34:24 PDT (-0700), r...@twiddle.net wrote: On 09/11/2018 09:28 AM, Palmer Dabbelt wrote: The RISC-V vector extension described something other than what is present in the currently released 2.2 standard.  To clarify the language within this message, based on what I remembe

Re: RISC-V vector extension cauldron discussion

2018-09-11 Thread Richard Henderson
On 09/11/2018 09:28 AM, Palmer Dabbelt wrote: >> The RISC-V vector extension described something other than what is >> present in the currently released 2.2 standard.  To clarify the >> language within this message, based on what I remember: > > Yes.  The current RISC-V ISA standard contains no ve

Re: RISC-V vector extension cauldron discussion

2018-09-11 Thread Palmer Dabbelt
Sorry if this is a bit roundabout, I wrote this over a few days and ended up thinking a bunch while writing. As a result, the beginning might not match the end. On Sat, 08 Sep 2018 03:04:38 PDT (-0700), r...@twiddle.net wrote: This attempts to capture (most of) the two hour discussion that we

Re: RISC-V vector extension cauldron discussion

2018-09-08 Thread Jakub Jelinek
On Sat, Sep 08, 2018 at 03:04:38AM -0700, Richard Henderson wrote: > Something similar must be defined for RISC-V. Such an abi must > consider how vconfig is to be managed across function boundaries > and with separate compilation. In my opinion this should be done > before finalizing the ISA, as

RISC-V vector extension cauldron discussion

2018-09-08 Thread Richard Henderson
This attempts to capture (most of) the two hour discussion that we had in the Entrance Hall at GNU Cauldron yesterday. Please correct any faulty memory on my part and forward or cc this to the appropriate RISC-V forum. The RISC-V vector extension described something other than what is present in