Adds the AVX-512 Bit Algorithms instruction set.
These new instructions are added via the `opcodesextra` mechanism #345, since
they're missing from the opcodes database.
Contributed by @vsivsi. Extracted from #234 with simplifications for AVX-512
form expansion.
Co-authored-by: Vaughn Iverson <vsivsi@yahoo.com>
Adds the VPOPCNTDQ instruction set, providing packed population count for
double and quadword integers.
These are added via the `opcodesextra` mechanism #345, since they're missing
from the opcodes database. In this case the 512-bit non-AVX512VL forms are
added here as well as the opcodes database, but they're deduplicated later.
Contributed by @vsivsi. Extracted from #234 with simplifications for AVX-512
form expansion.
Co-authored-by: Vaughn Iverson <vsivsi@yahoo.com>
Adds "Vector Neural Network Instructions" instruction set.
These are added via the `opcodesextra` mechanism #345, since they're missing
from the opcodes database.
Contributed by @vsivsi. Extracted from #349 with some tweaks.
Co-authored-by: Vaughn Iverson <vsivsi@yahoo.com>
Adds support for the GFNI "Galois Field New Instructions" instruction set.
These instructions are not included in the Opcodes database, therefore they're
added using the "extras" mechanism introduced in #345.
For simplicity, the loading phase is updated slightly so that AVX-512 form
expansion rules are applied after extras are added to the list. This greatly
reduces the number of forms that have to be specified by hand.
Based on #343Fixes#335
Co-authored-by: Klaus Post <klauspost@gmail.com>
Extends avo to support most AVX-512 instruction sets.
The instruction type is extended to support suffixes. The K family of opmask
registers is added to the register package, and the operand package is updated
to support the new operand types. Move instruction deduction in `Load` and
`Store` is extended to support KMOV* and VMOV* forms.
Internal code generation packages were overhauled. Instruction database loading
required various messy changes to account for the additional complexities of the
AVX-512 instruction sets. The internal/api package was added to introduce a
separation between instruction forms in the database, and the functions avo
provides to create them. This was required since with instruction suffixes there
is no longer a one-to-one mapping between instruction constructors and opcodes.
AVX-512 bloated generated source code size substantially, initially increasing
compilation and CI test times to an unacceptable level. Two changes were made to
address this:
1. Instruction constructors in the `x86` package moved to an optab-based
approach. This compiles substantially faster than the verbose code
generation we had before.
2. The most verbose code-generated tests are moved under build tags and
limited to a stress test mode. Stress test builds are run on
schedule but not in regular CI.
An example of AVX-512 accelerated 16-lane MD5 is provided to demonstrate and
test the new functionality.
Updates #20#163#229
Co-authored-by: Vaughn Iverson <vsivsi@yahoo.com>
