b76e849b5c
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>
52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
package gen
|
|
|
|
import (
|
|
"github.com/mmcloughlin/avo/internal/api"
|
|
"github.com/mmcloughlin/avo/internal/inst"
|
|
"github.com/mmcloughlin/avo/internal/prnt"
|
|
"github.com/mmcloughlin/avo/printer"
|
|
)
|
|
|
|
type buildtest struct {
|
|
cfg printer.Config
|
|
prnt.Generator
|
|
}
|
|
|
|
// NewBuildTest autogenerates tests for instruction methods on the build
|
|
// context.
|
|
func NewBuildTest(cfg printer.Config) Interface {
|
|
return GoFmt(&buildtest{cfg: cfg})
|
|
}
|
|
|
|
func (b *buildtest) Generate(is []inst.Instruction) ([]byte, error) {
|
|
b.Printf("// %s\n\n", b.cfg.GeneratedWarning())
|
|
b.BuildTag("!integration")
|
|
b.NL()
|
|
b.Printf("package build\n\n")
|
|
b.Printf("import (\n")
|
|
b.Printf("\t\"math\"\n")
|
|
b.Printf("\t\"testing\"\n")
|
|
b.NL()
|
|
b.Printf("\t%q\n", api.ImportPath(api.OperandPackage))
|
|
b.Printf("\t%q\n", api.ImportPath(api.RegisterPackage))
|
|
b.Printf(")\n\n")
|
|
|
|
DeclareTestArguments(&b.Generator)
|
|
|
|
b.Printf("func TestContextInstructions(t *testing.T) {")
|
|
b.Printf("ctx := NewContext()\n")
|
|
b.Printf("ctx.Function(\"Instructions\")\n")
|
|
|
|
fns := api.InstructionsFunctions(is)
|
|
for _, fn := range fns {
|
|
f := fn.Forms[0]
|
|
s := TestSignature(f)
|
|
b.Printf("ctx.%s(%s)\n", fn.Name(), s.Arguments())
|
|
}
|
|
|
|
b.Printf("if _, err := ctx.Result(); err != nil { t.Fatal(err) }\n")
|
|
b.Printf("}\n\n")
|
|
|
|
return b.Result()
|
|
}
|