[Bug 283314] lang/go building go app immediately fails at compile "unexpected return pc for cmd/compile/internal/ssa.Compile"

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283314

--- Comment #2 from Mike Watkins <git@mikewatkins.ca> ---
Even using Go's own installation mechanism for itself will fail.

❯ go install golang.org/dl/go1.23.4@latest
warning: GOPATH set to GOROOT (/home/mw/go) has no effect
# crypto/x509
<unknown line number>: internal compiler error: panic: runtime error: invalid
memory address or nil pointer dereference

Clear the cache and try again:

❯ rm -rf ~/.cache/go-build
[I] mw@bugs ~ 
❯ go install golang.org/dl/go1.23.4@latest
warning: GOPATH set to GOROOT (/home/mw/go) has no effect
# os/user
runtime: g 32: unexpected return pc for cmd/compile/internal/ssa.Compile called
from 0xf40566bb51bfac66
stack: frame={sp:0x86cf0daf0, fp:0x86cf0daf8} stack=[0x86cf06000,0x86cf0e000)

Whereas with the DEBUG flag define, it succeeds:

❯ GODEBUG=asyncpreemptoff=1  go install golang.org/dl/go1.23.4@latest
❯ ~/go/bin/go version
go version go1.23.4 freebsd/amd64

Disabling asyncpreempt is probably not the answer but this is beyond my Go
expertise.

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