cmd/compile: 33909 breaks build on s390x

[billotosyr]

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

$ go version 1.12 master tip

Does this issue reproduce with the latest release?

yes

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

build bot

go env Output

$ go env
GOARCH="s390x"
GOBIN=""
GOEXE=""
GOHOSTARCH="s390x"
GOHOSTOS="linux"
GOOS="linux"
GOPATH=""
GORACE=""
GOROOT="/data/golang/go"
GOTOOLDIR="/data/golang/go/pkg/tool/linux_s390x"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -march=z196 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build874631313=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"

What did you do?

looked at the build page

What did you expect to see?

successful build

What did you see instead?

broken build

https://build.golang.org/log/74215d2fbf0b19a020c16db9f7d52f4cf2869177

issue22200b.go:11: missing error "stack frame too large"
issue22200b.go:17: missing error "stack frame too large"
issue22200b.go:23: missing error "stack frame too large"
Unmatched Errors:
issue22200b.go:13: internal compiler error: 'f3': bad int32 AuxInt value for v30

[billotosyr]

@mundaym

[randall77]

Fixed with CL 151597

[billotosyr]

Thank you!