perf: add amd64 compile flags back

dist/images/Dockerfile

@@ -1,6 +1,9 @@
 # syntax = docker/dockerfile:experimental
 FROM centos:8 as ovs-rpm
 
+ARG RPM_ARCH
+ARG ARCH
+
 RUN yum install dnf-plugins-core -y && \
     yum config-manager --set-enabled PowerTools && \
     yum install python36 git wget openssl-devel gcc \
@@ -10,7 +13,6 @@ RUN yum install dnf-plugins-core -y && \
     desktop-file-utils graphviz groff python3-sphinx -y
 COPY build.sh /root/build.sh
 RUN bash /root/build.sh
-ARG RPM_ARCH
 RUN mkdir /rpms/ && \
     cp /ovs/rpm/rpmbuild/RPMS/${RPM_ARCH}/* /ovn/rpm/rpmbuild/RPMS/${RPM_ARCH}/* /rpms && \
     cd /rpms && rm -f *debug* *docker* *vtep* *ipsec*

dist/images/build.sh

@@ -17,7 +17,11 @@ curl https://github.com/alauda/ovs/commit/238003290766808ba310e1875157b3d4142456
 sed -i 's/2.13.1/2.13.0/g' configure.ac
 sed -i 's/sphinx-build-3/sphinx-build/g' rhel/openvswitch-fedora.spec.in
 ./boot.sh
-./configure LIBS=-ljemalloc
+if [ "$ARCH" = "amd64" ]; then
+  ./configure LIBS=-ljemalloc CFLAGS="-O2 -g -msse4.2 -mpopcnt"
+else
+  ./configure LIBS=-ljemalloc
+fi
 make rpm-fedora
 cd ..
 
@@ -28,5 +32,9 @@ curl https://github.com/oilbeater/ovn/commit/7e49a662d9a9d23d673958564048eee71dc
 curl https://github.com/oilbeater/ovn/commit/1e0d051acb355ca835e07f87be402cfb5d68f5b2.patch | git apply
 sed -i 's/20.03.1/20.03.0/g' configure.ac
 ./boot.sh
-./configure LIBS=-ljemalloc --with-ovs-source=/ovs
+if [ "$ARCH" = "amd64" ]; then
+  ./configure LIBS=-ljemalloc --with-ovs-source=/ovs CFLAGS="-O2 -g -msse4.2 -mpopcnt"
+else
+  ./configure LIBS=-ljemalloc --with-ovs-source=/ovs
+fi
 make rpm-fedora