On 2/6/25 11:56, Richard Henderson wrote:
Based-on:20250201164012.1660228-1-peter.maydell@linaro.org
("[PATCH v2 00/69] target/arm: FEAT_AFP and FEAT_RPRES")
This implements the Scalar Matrix Extensions, version 2, plus two
trivial extensions for float16 and bfloat16.
This hasn't been tested much at all; I need to either get FVP up and
running for RISU comparison, or write some stand-alone test cases.
But in the meantime this could use some eyes.
SME2 is the first vector-like extension we've had that has dynamic
indexing of registers: ZArray[(rv + offset) % svl], where RV is a
general register. So the first thing I do is extend TCG's gvec
support to handle TCGv_ptr base + offset addressing. I only changed
enough to handle what I needed within SME2; changing it all would be
a big job, and it would (at least for the moment) remain unused.
Still to-do are few more extensions for SME2p1.
Ho hum. I've missed the entire set of counted predicate insns.
Hooray for Arm sample code!