Tell us about the SIMD support

[Bryght-Richard]

Will ESP32-S31 GCC support autovectorization?

Will ESP32-S31 GCC support https://gcc.gnu.org/onlinedocs/gcc/Vect ... sions.html ?

Is the SIMD instruction set more ESP32-S3 or RISCV SIMD?

[Sprite]

Not sure about autovectorization, but you can assume that given the S31 core is RiscV, the PIE will be (possibly a superset of) the PIE found in the ESP32P4.

[Bryght-Richard]

SIMD Unaligned access?

[andylinpersonal]

Some hint from the agent skills. But lacks instruction cycles of SIMD instructions and overhead of unaligned access.

[MicroController]

On the S3, and AFAIK on the P4 too, there are no unaligned memory accesses via the SIMD. Every access is always aligned, see the S3's TRM for example.