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>
76 lines
2.1 KiB
Go
76 lines
2.1 KiB
Go
package api
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import (
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"path"
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"sort"
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"strings"
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)
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const (
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// Package is the avo package import path.
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Package = "github.com/mmcloughlin/avo"
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// IRPackage is the package that defines intermediate representation types.
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IRPackage = "ir"
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// OperandPackage is the package for operand types.
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OperandPackage = "operand"
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// OperandType is the type used for operands.
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OperandType = OperandPackage + ".Op"
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// RegisterPackage is the name of the package containing register types.
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RegisterPackage = "reg"
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// RegisterType is the type used for registers.
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RegisterType = RegisterPackage + ".Register"
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)
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// ImportPath returns the full import path for an avo subpackage.
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func ImportPath(pkg string) string {
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return path.Join(Package, pkg)
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}
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// ImplicitRegisterIdentifier maps an implicit register name to a string
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// suitable for a related Go identifier.
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func ImplicitRegisterIdentifier(r string) string {
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r = strings.Replace(r, "mm", "", 1) // handles the "xmm0" type
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return strings.ToUpper(r)
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}
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// ImplicitRegister returns avo syntax for the given implicit register type (from Opcodes XML).
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func ImplicitRegister(r string) string {
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return RegisterPackage + "." + ImplicitRegisterIdentifier(r)
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}
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// OperandTypeIdentifier maps an operand type to a string suitable for a related
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// Go identifier.
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func OperandTypeIdentifier(t string) string {
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return strings.ToUpper(strings.ReplaceAll(t, "/", ""))
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}
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// CheckerName returns the name of the function that checks an operand of type t.
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func CheckerName(t string) string {
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return "operand.Is" + OperandTypeIdentifier(t)
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}
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// ISAsIdentifier returns a string representation of an ISA list that suitable
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// for use in a Go identifier.
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func ISAsIdentifier(isas []string) string {
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if len(isas) == 0 {
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return "Base"
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}
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sorted := append([]string(nil), isas...)
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sort.Strings(sorted)
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ident := strings.Join(sorted, "_")
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ident = strings.ReplaceAll(ident, ".", "") // SSE4.1
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ident = strings.ReplaceAll(ident, "+", "") // MMX+
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return ident
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}
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// SuffixesClassIdentifier returns a string representation of a suffix class
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// that's suitable for use in a Go identifier.
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func SuffixesClassIdentifier(c string) string {
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return strings.ToUpper(c)
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}
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