cmd/compile: cannot highlight AST lines in ssa.html

[Zheng-Xu]

What version of Go are you using (go version)?

$ go version
go version devel go1.18-7622e41c84 Mon Aug 30 22:09:22 2021 +0000 linux/arm64

Does this issue reproduce with the latest release?

What operating system and processor architecture are you using (go env)?

go env Output

$ go env

What did you do?

1. GOSSAFUNC=main.test go build test.go
2. Open ssa.html in browser.
3. Click any lines in any sections other than AST section.
4. Click any lines in AST section.

What did you expect to see?

Corresponding lines in AST section should be highlight from step 3.
Lines in different sections(including AST) should be highlighted from step 4.

What did you see instead?

No line highlight in AST section from step 3.
No line highlight in any sections from step 4.

This issue was introduced by CL 275785

[gopherbot]

Change https://golang.org/cl/347269 mentions this issue: cmd/compile/internal/ir: better AST line highlight in ssa.html

[cherrymui]

cc @dr2chase @josharian

[erifan]

This is a regression since Go1.17, should we backport it to Go1.17 ?

[cherrymui]

No. We only backport serious issues without workarounds. This is clearly not serious. And ssa.html is mostly for compiler developers, not for general users.

[erifan]

No. We only backport serious issues without workarounds. This is clearly not serious. And ssa.html is mostly for compiler developers, not for general users.

Ok.