test-flags: support the x86 microarchitecture levels

test/check-flags.sh

@@ -14,9 +14,23 @@ if [ ! -d "${SDE_PATH}" ]; then
   mkdir -p "${SDE_PATH}"
 fi
 
+if [ -e /lib/ld-linux-x86-64.so.2 ]; then
+  LD=/lib/ld-linux-x86-64.so.2
+else
+  LD=/lib64/ld-linux-x86-64.so.2
+fi
+
 NATIVE_SUPPORT=1
 for FLAG in $CFLAGS; do
-  echo $FLAG | grep -qP '^\-m[0-9a-zA-Z\.]+$' || continue
+  if echo "$FLAG" | grep -q '\-march=x86-64-v[234]$' ; then
+    if grep -qP " ${FLAG:7} \(supported" <(${LD} --help) ; then
+      continue
+    else
+      NATIVE_SUPPORT=0
+      continue
+    fi
+  fi
+  echo "$FLAG" | grep -qP '^\-m[0-9a-zA-Z\.]+$' || continue
   case "${FLAG:2}" in
     # sse3 doesn't show up in /proc/cpuinfo (?!?!)
     "sse3")
@@ -39,11 +53,11 @@ case "$COMMAND" in
     ;;
 esac
 
-if [ $COMMAND = 'query' ]; then
+if [ "$COMMAND" = "query" ]; then
   test $NATIVE_SUPPORT -eq 1
   exit $?
 elif [ $NATIVE_SUPPORT -eq 1 ]; then
-  $@
+  "$@"
   exit $?
 elif [ "$COMMAND" = "sde" ]; then
   (
@@ -52,7 +66,7 @@ elif [ "$COMMAND" = "sde" ]; then
       "$(dirname "$0")"/download-sde.sh "${SDE_PATH}"
     fi
   ) 9>/tmp/sde-download.lock
-  "${SDE_PATH}/sde64" -${INTEL_TARGET} -- $@
+  "${SDE_PATH}/sde64" "-${INTEL_TARGET}" -- "$@"
   exit $?
 else
   echo "Flags not supported, skipping"