# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1443537429 -7200
# Node ID 2e71226319dabc82684ea82cd33a6763350b70a4
# Parent  b6b46b741102e33d6c7cf04266b69dc95b18a632
added CodeCacheProvider.getMaxCallTargetOffset and made CompilerToVM.getMaxCallTargetOffset package-private

diff -r b6b46b741102 -r 2e71226319da jvmci/jdk.internal.jvmci.code/src/jdk/internal/jvmci/code/CodeCacheProvider.java
--- a/jvmci/jdk.internal.jvmci.code/src/jdk/internal/jvmci/code/CodeCacheProvider.java	Tue Sep 29 15:55:37 2015 +0200
+++ b/jvmci/jdk.internal.jvmci.code/src/jdk/internal/jvmci/code/CodeCacheProvider.java	Tue Sep 29 16:37:09 2015 +0200
@@ -136,4 +136,11 @@
      * Create a new speculation log for the target runtime.
      */
     SpeculationLog createSpeculationLog();
+
+    /**
+     * Returns the maximum absolute offset of a PC relative call to a given address from any
+     * position in the code cache or -1 when not applicable. Intended for determining the required
+     * size of address/offset fields.
+     */
+    long getMaxCallTargetOffset(long address);
 }
diff -r b6b46b741102 -r 2e71226319da jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/CompilerToVM.java
--- a/jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/CompilerToVM.java	Tue Sep 29 15:55:37 2015 +0200
+++ b/jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/CompilerToVM.java	Tue Sep 29 16:37:09 2015 +0200
@@ -391,7 +391,7 @@
      * @param address an address that may be called from any code in the code cache
      * @return -1 if {@code address == 0}
      */
-    public long getMaxCallTargetOffset(long address) {
+    long getMaxCallTargetOffset(long address) {
         return getMaxCallTargetOffsetImpl(address);
     }
 
diff -r b6b46b741102 -r 2e71226319da jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotCodeCacheProvider.java
--- a/jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotCodeCacheProvider.java	Tue Sep 29 15:55:37 2015 +0200
+++ b/jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotCodeCacheProvider.java	Tue Sep 29 16:37:09 2015 +0200
@@ -256,4 +256,8 @@
     public SpeculationLog createSpeculationLog() {
         return new HotSpotSpeculationLog();
     }
+
+    public long getMaxCallTargetOffset(long address) {
+        return runtime.getCompilerToVM().getMaxCallTargetOffset(address);
+    }
 }