[go/dev.simd] [dev.simd] simd/archsimd/_gen/cmd/specls: command to list spec API
5 views
Skip to first unread message
Austin Clements (Gerrit)
Jul 9, 2026, 2:41:08 PMJul 9
to David Chase, Junyang Shao, goph...@pubsubhelper.golang.org, Cherry Mui, Austin Clements, golang-co...@googlegroups.com
Attention needed from David Chase and Junyang Shao
Austin Clements has uploaded the change for review![]( "Open in Gerrit")
Austin Clements would like David Chase and Junyang Shao to review this change.
Commit message
[dev.simd] simd/archsimd/_gen/cmd/specls: command to list spec API
This is a simple command-line tool to inspect and debug API generation
from the SIMD spec package.
Change-Id: I6f480d76995f10bb9bbc264755c2509afcaacc9d
Change diff
diff --git a/src/simd/archsimd/_gen/cmd/specls/main.go b/src/simd/archsimd/_gen/cmd/specls/main.go
new file mode 100644
index 0000000..e143fb8
--- /dev/null
+++ b/src/simd/archsimd/_gen/cmd/specls/main.go
@@ -0,0 +1,80 @@
+// Copyright 2026 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// specls prints the expanded API from the SIMD spec package.
+package main
+
+import (
+ "_gen/specgen"
+ "flag"
+ "fmt"
+ "go/ast"
+ "log"
+ "os"
+ "os/exec"
+ "path/filepath"
+ "regexp"
+ "strings"
+)
+
+var (
+ flagFilter = flag.String("f", "", "only process spec functions matching `regexp`")
+ flagTrace = flag.Bool("trace", false, "trace solver steps")
+)
+
+func main() {
+ flag.Usage = func() {
+ w := flag.CommandLine.Output()
+ fmt.Fprintf(w, "usage: specls [flags] [spec dir]\n")
+ flag.CommandLine.PrintDefaults()
+ }
+
+ flag.Parse()
+ if flag.NArg() > 1 {
+ flag.Usage()
+ os.Exit(1)
+ }
+ var specDir string
+ if flag.NArg() == 1 {
+ specDir = flag.Arg(0)
+ } else {
+ goroot, err := goEnvGoroot()
+ if err != nil {
+ log.Fatalf("could not find GOROOT: %s", err)
+ }
+ specDir = filepath.Join(goroot, "src/simd/archsimd/_gen/spec")
+ }
+
+ var opts specgen.LoadOptions
+ if *flagFilter != "" {
+ re, err := regexp.Compile(*flagFilter)
+ if err != nil {
+ log.Fatal("invalid -f: ", err)
+ }
+ opts.Filter = func(fd *ast.FuncDecl) bool {
+ return re.MatchString(fd.Name.Name)
+ }
+ }
+ if *flagTrace {
+ opts.Trace = os.Stderr
+ }
+
+ funcs, err := specgen.Load(specDir, &opts)
+ if err != nil {
+ fmt.Fprintf(os.Stderr, "%s\n", err.Error())
+ }
+
+ for _, fn := range funcs {
+ fmt.Print(fn.Decl())
+ fmt.Println()
+ }
+}
+
+func goEnvGoroot() (string, error) {
+ out, err := exec.Command("go", "env", "GOROOT").Output()
+ if err != nil {
+ return "", err
+ }
+ return strings.TrimSpace(string(out)), nil
+}
Change information
Files:
- A src/simd/archsimd/_gen/cmd/specls/main.go
Change size: M
Delta: 1 file changed, 80 insertions(+), 0 deletions(-)
Related details
Attention is currently required from:
- David Chase
- Junyang Shao
Submit Requirements:
Code-Review
No-Unresolved-Comments
Review-Enforcement
TryBots-Pass
| Inspect html for hidden footers to help with email filtering. To unsubscribe visit settings. |
Austin Clements (Gerrit)
Jul 10, 2026, 8:39:45 AMJul 10
to Austin Clements, goph...@pubsubhelper.golang.org, golang-co...@googlegroups.com
Attention needed from David Chase and Junyang Shao
Austin Clements uploaded new patchset![]( "Open in Gerrit")
Austin Clements uploaded patch set #2 to this change.
Following approvals got outdated and were removed:
- TryBots-Pass: LUCI-TryBot-Result+1 by golang...@luci-project-accounts.iam.gserviceaccount.com
Related details
Attention is currently required from:
- David Chase
- Junyang Shao
Submit Requirements:
Code-Review
No-Unresolved-Comments
Review-Enforcement
TryBots-Pass
| Inspect html for hidden footers to help with email filtering. To unsubscribe visit settings. |
Austin Clements (Gerrit)
Jul 12, 2026, 9:30:15 PMJul 12
to Austin Clements, goph...@pubsubhelper.golang.org, golang-co...@googlegroups.com
Attention needed from David Chase and Junyang Shao
Austin Clements uploaded new patchset![]( "Open in Gerrit")
Austin Clements uploaded patch set #5 to this change.
Following approvals got outdated and were removed:
- TryBots-Pass: LUCI-TryBot-Result+1 by golang...@luci-project-accounts.iam.gserviceaccount.com
Related details
Attention is currently required from:
- David Chase
- Junyang Shao
Submit Requirements:
Code-Review
No-Unresolved-Comments
Review-Enforcement
TryBots-Pass
| Inspect html for hidden footers to help with email filtering. To unsubscribe visit settings. |
Junyang Shao (Gerrit)
Jul 15, 2026, 5:35:24 PMJul 15
to Austin Clements, goph...@pubsubhelper.golang.org, golang...@luci-project-accounts.iam.gserviceaccount.com, David Chase, Cherry Mui, golang-co...@googlegroups.com
Attention needed from Austin Clements and David Chase
Junyang Shao added 1 comment![]( "Open in Gerrit")
File src/simd/archsimd/_gen/cmd/specls/main.go
Line 9, Patchset 6 (Latest):
"_gen/specgen"Junyang Shao . unresolved
I need to change this to `"simd/archsimd/_gen/specgen"` to make gopls not complaint on my end.
Related details
Attention is currently required from:
- Austin Clements
- David Chase
Submit Requirements:
Code-Review
No-Unresolved-Comments
Review-Enforcement
TryBots-Pass
| Inspect html for hidden footers to help with email filtering. To unsubscribe visit settings. |
Austin Clements (Gerrit)
Aug 6, 2026, 2:58:59 PM (yesterday) Aug 6
to Austin Clements, goph...@pubsubhelper.golang.org, golang...@luci-project-accounts.iam.gserviceaccount.com, David Chase, Junyang Shao, Cherry Mui, golang-co...@googlegroups.com
Attention needed from David Chase and Junyang Shao
Austin Clements added 1 comment![]( "Open in Gerrit")
File src/simd/archsimd/_gen/cmd/specls/main.go
I need to change this to `"simd/archsimd/_gen/specgen"` to make gopls not complaint on my end.
Austin Clements
It sounds like you rebased this CL past the go.mod change. I'll need to do that, but right now that's not in the parent chain of this CL.
Related details
Attention is currently required from:
- David Chase
- Junyang Shao
Submit Requirements:
Code-Review
No-Unresolved-Comments
Review-Enforcement
TryBots-Pass
| Inspect html for hidden footers to help with email filtering. To unsubscribe visit settings. |
Austin Clements (Gerrit)
Aug 6, 2026, 3:07:31 PM (yesterday) Aug 6
to Austin Clements, goph...@pubsubhelper.golang.org, golang-co...@googlegroups.com
Attention needed from David Chase and Junyang Shao
Austin Clements uploaded new patchset![]( "Open in Gerrit")
Austin Clements uploaded patch set #8 to this change.
Related details
Attention is currently required from:
- David Chase
- Junyang Shao
Submit Requirements:
Code-Review
No-Unresolved-Comments
Review-Enforcement
TryBots-Pass
| Inspect html for hidden footers to help with email filtering. To unsubscribe visit settings. |
Austin Clements (Gerrit)
5:16 PM (5 hours ago) 5:16 PM
to David Chase, Junyang Shao, goph...@pubsubhelper.golang.org, Cherry Mui, Austin Clements, golang-co...@googlegroups.com
Attention needed from David Chase and Junyang Shao
Austin Clements has uploaded the change for review![]( "Open in Gerrit")
Austin Clements would like David Chase and Junyang Shao to review this change.
Commit message
simd/archsimd/_gen/cmd/specls: command to list spec API
This is a simple command-line tool to inspect and debug API generation
from the SIMD spec package.
Change-Id: I6f480d76995f10bb9bbc264755c2509afcaacc9d
Change diff
diff --git a/src/simd/archsimd/_gen/cmd/specls/main.go b/src/simd/archsimd/_gen/cmd/specls/main.go
new file mode 100644
index 0000000..2149d98
--- /dev/null
+++ b/src/simd/archsimd/_gen/cmd/specls/main.go
@@ -0,0 +1,66 @@
+// Copyright 2026 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// specls prints the expanded API from the SIMD spec package.
+package main
+
+import (
+ "flag"
+ "fmt"
+ "go/ast"
+ "log"
+ "os"
+ "regexp"
+ "simd/archsimd/_gen/specgen"
+)
+
+var (
+ flagFilter = flag.String("f", "", "only process spec functions matching `regexp`")
+ flagTrace = flag.Bool("trace", false, "trace solver steps")
+)
+
+func main() {
+ flag.Usage = func() {
+ w := flag.CommandLine.Output()
+ fmt.Fprintf(w, "usage: specls [flags] [spec dir]\n")
+ flag.CommandLine.PrintDefaults()
+ }
+
+ flag.Parse()
+ var specDir string
+ switch flag.NArg() {
+ case 0:
+ specDir = specgen.MustFindSpecDir()
+ case 1:
+ specDir = flag.Arg(0)
+ default:
+ flag.Usage()
+ os.Exit(1)
+ }
+
+ var opts specgen.LoadOptions
+ if *flagFilter != "" {
+ re, err := regexp.Compile(*flagFilter)
+ if err != nil {
+ log.Fatal("invalid -f: ", err)
+ }
+ opts.Filter = func(fd *ast.FuncDecl) bool {
+ return re.MatchString(fd.Name.Name)
+ }
+ }
+ if *flagTrace {
+ opts.Trace = os.Stderr
+ }
+
+ funcs, err := specgen.Load(specDir, &opts)
+ if err != nil {
+ fmt.Fprintf(os.Stderr, "%s\n\n", err.Error())
+ defer os.Exit(1)
+ }
+
+ for _, fn := range funcs {
+ fmt.Print(fn.Decl())
+ fmt.Println()
+ }
+}
Change information
Files:
- A src/simd/archsimd/_gen/cmd/specls/main.go
Change size: M
Delta: 1 file changed, 66 insertions(+), 0 deletions(-)
Related details
Attention is currently required from:
- David Chase
- Junyang Shao
Submit Requirements:
Code-Review
No-Unresolved-Comments
Review-Enforcement
TryBots-Pass
| Inspect html for hidden footers to help with email filtering. To unsubscribe visit settings. |
Reply all
Reply to author
Forward
0 new messages