8268643: SVML lib shouldn't be generated when C2 is absent

Reviewed-by: erikj

make/autoconf/jvm-features.m4

@@ -542,6 +542,9 @@ AC_DEFUN([JVM_FEATURES_VERIFY],
   if ! JVM_FEATURES_IS_ACTIVE(jvmci); then
     INCLUDE_JVMCI="false"
   fi
+  if JVM_FEATURES_IS_ACTIVE(compiler2); then
+    INCLUDE_COMPILER2="true"
+  fi
 
   # Verify that we have at least one gc selected (i.e., feature named "*gc").
   if ! JVM_FEATURES_IS_ACTIVE(.*gc); then
@@ -565,6 +568,7 @@ AC_DEFUN_ONCE([JVM_FEATURES_SETUP],
   # missing any of them.
   ENABLE_CDS="true"
   INCLUDE_JVMCI="true"
+  INCLUDE_COMPILER2="false"
 
   for variant in $JVM_VARIANTS; do
     # Figure out if any features are unavailable, or should be filtered out
@@ -601,5 +605,6 @@ AC_DEFUN_ONCE([JVM_FEATURES_SETUP],
   AC_SUBST(JVM_FEATURES_custom)
 
   AC_SUBST(INCLUDE_JVMCI)
+  AC_SUBST(INCLUDE_COMPILER2)
 
 ])

make/autoconf/spec.gmk.in

@@ -853,6 +853,7 @@ PNG_CFLAGS:=@PNG_CFLAGS@
 
 INCLUDE_SA=@INCLUDE_SA@
 INCLUDE_JVMCI=@INCLUDE_JVMCI@
+INCLUDE_COMPILER2=@INCLUDE_COMPILER2@
 
 OS_VERSION_MAJOR:=@OS_VERSION_MAJOR@
 OS_VERSION_MINOR:=@OS_VERSION_MINOR@

make/modules/jdk.incubator.vector/Lib.gmk

@@ -27,7 +27,7 @@ include LibCommon.gmk
 
 ################################################################################
 
-ifeq ($(call isTargetOs, linux windows)+$(call isTargetCpu, x86_64), true+true)
+ifeq ($(call isTargetOs, linux windows)+$(call isTargetCpu, x86_64)+$(INCLUDE_COMPILER2), true+true+true)
   $(eval $(call SetupJdkLibrary, BUILD_LIBSVML, \
       NAME := svml, \
       CFLAGS := $(CFLAGS_JDKLIB), \