[PATCH 0/2] Support Intel AMX-COMPLEX

[Haochen Jiang]

Hi all,

These patch aims to add Intel AMX-COMPLEX instructions. Also we added
AMX-COMPLEX to -march=graniterapids.

The information is based on newly released
Intel Architecture Instruction Set Extensions and Future Features.

The document comes following:
https://www.intel.com/content/www/us/en/develop/download/intel-architecture-instruction-set-extensions-programming-reference.html

Since there are only two instructions under this new ISA, I suppose the
risk is low and might get a change for GCC13. So I send the patches out now.

Tested on x86_64-pc-linux-gnu. Ok for trunk?

BRs,
Haochen