diff --git a/make/autoconf/flags-ldflags.m4 b/make/autoconf/flags-ldflags.m4
index ad131b20e27..572790b567b 100644
--- a/make/autoconf/flags-ldflags.m4
+++ b/make/autoconf/flags-ldflags.m4
@@ -50,7 +50,14 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_HELPER],
     # add -z,relro (mark relocations read only) for all libs
     # add -z,now ("full relro" - more of the Global Offset Table GOT is marked read only)
     # add --no-as-needed to disable default --as-needed link flag on some GCC toolchains
+    # add --icf=all (Identical Code Folding — merges identical functions)
     BASIC_LDFLAGS="-Wl,-z,defs -Wl,-z,relro -Wl,-z,now -Wl,--no-as-needed -Wl,--exclude-libs,ALL"
+    if test "x$LINKER_TYPE" = "xgold"; then
+      if test x$DEBUG_LEVEL = xrelease; then
+        BASIC_LDFLAGS="$BASIC_LDFLAGS -Wl,--icf=all"
+      fi
+    fi
+
     # Linux : remove unused code+data in link step
     if test "x$ENABLE_LINKTIME_GC" = xtrue; then
       if test "x$OPENJDK_TARGET_CPU" = xs390x; then
diff --git a/make/autoconf/toolchain.m4 b/make/autoconf/toolchain.m4
index 4662c62d901..15210efe4a7 100644
--- a/make/autoconf/toolchain.m4
+++ b/make/autoconf/toolchain.m4
@@ -516,6 +516,7 @@ AC_DEFUN([TOOLCHAIN_EXTRACT_LD_VERSION],
     if [ [[ "$LINKER_VERSION_STRING" == *gold* ]] ]; then
       [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
           $SED -e 's/.* \([0-9][0-9]*\(\.[0-9][0-9]*\)*\).*) .*/\1/'` ]
+      LINKER_TYPE=gold
     else
       [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
           $SED -e 's/.* \([0-9][0-9]*\(\.[0-9][0-9]*\)*\).*/\1/'` ]