Description of problem: I'm building github.com/nats-io/gnatsd 2.0.0-RC8 with: go build -buildmode pie -compiler gc '-tags=rpm_crashtraceback ' -ldflags '-X github.com/nats-io/gnatsd/version.tag=v2.0.0-RC8 -X github.com/nats-io/gnatsd/version=2.0.0 -B 0x51f0a6c96fb7745750f72bd94ce56793deb3d943 -extldflags '\''-Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld '\''' -a -v -x -o /builddir/build/BUILD/nats-server-2.0.0-RC8/_build/bin/gnatsd github.com/nats-io/gnatsd Build progress until it hits this error: cd /builddir/build/BUILD/nats-server-2.0.0-RC8/_build/src/github.com/nats-io/gnatsd/server BUILDSTDERR: /usr/lib/golang/pkg/tool/linux_arm64/compile -o $WORK/b033/_pkg_.a -trimpath "$WORK/b033=>" -shared -p github.com/nats-io/gnatsd/server -complete -installsuffix shared -buildid 9lWsjnhecOJeLDa8YX6b/9lWsjnhecOJeLDa8YX6b -goversion go1.13beta1 -D "" -importcfg $WORK/b033/importcfg -pack ./accounts.go ./auth.go ./ciphersuites.go ./client.go ./const.go ./errors.go ./events.go ./gateway.go ./jwt.go ./leafnode.go ./log.go ./monitor.go ./monitor_sort_opts.go ./nkey.go ./opts.go ./parser.go ./reload.go ./ring.go ./route.go ./server.go ./service.go ./signal.go ./sublist.go ./util.go BUILDSTDERR: # github.com/nats-io/gnatsd/server BUILDSTDERR: _build/src/github.com/nats-io/gnatsd/server/gateway.go:2119:10: internal compiler error: '(*client).sendMsgToGateways': no register available for v418 = LoweredAtomicAdd32Variant <uint32,mem> v344 v145 v407 BUILDSTDERR: Please file a bug report including a short program that triggers the error. BUILDSTDERR: https://golang.org/issue/new Build was working with Golang 1.12.7 under the same conditions. Other arches beside aarch64 are working correctly. Version-Release number of selected component (if applicable): golang-1.13-0.beta1.2.fc31 How reproducible: Always Steps to Reproduce: mkdir issue33355 cd issue33355 git clone https://github.com/nats-io/gnatsd cd gnatsd GOARCH=arm64 go build Actual results: _build/src/github.com/nats-io/gnatsd/server/gateway.go:2119:10: internal compiler error: '(*client).sendMsgToGateways': no register available for v418 = LoweredAtomicAdd32Variant <uint32,mem> v344 v145 v407 Expected results: Build success. Additional info: Upstream bug report https://github.com/golang/go/issues/33355 Solved in https://github.com/golang/go/commit/8a317ebc0f50339628c003bf06107cd865406dd4