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changeset 3710:4e037604f6ee

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use alignment for constants specified in DataPatch.alignment
author Christian Wimmer <christian.wimmer@oracle.com>
date Mon, 05 Dec 2011 18:15:25 -0800
parents 54915831e565
children 5711f2ab6c7c d6a0c46a73b2
files src/share/vm/graal/graalCodeInstaller.cpp src/share/vm/graal/graalJavaAccess.hpp
diffstat 2 files changed, 7 insertions(+), 4 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/graal/graalCodeInstaller.cpp	Mon Dec 05 20:00:57 2011 +0100
+++ b/src/share/vm/graal/graalCodeInstaller.cpp	Mon Dec 05 18:15:25 2011 -0800
@@ -735,6 +735,7 @@
 
 void CodeInstaller::site_DataPatch(CodeBuffer& buffer, jint pc_offset, oop site) {
   oop constant = CiTargetMethod_DataPatch::constant(site);
+  int alignment = CiTargetMethod_DataPatch::alignment(site);
   oop kind = CiConstant::kind(constant);
 
   address instruction = _instructions->start() + pc_offset;
@@ -754,11 +755,12 @@
     case 'd': {
       address operand = Assembler::locate_operand(instruction, Assembler::disp32_operand);
       address next_instruction = Assembler::locate_next_instruction(instruction);
+      int size = _constants->size();
+      if (alignment > 0) {
+        guarantee(alignment <= _constants->alignment(), "Alignment inside constants section is restricted by alignment of section begin");
+        size = align_size_up(size, alignment);
+      }
       // we don't care if this is a long/double/etc., the primitive field contains the right bits
-      int size = _constants->size();
-      if (typeChar == 'd' || typeChar == 'j') {
-        size = _constants->align_at_start(size);
-      }
       address dest = _constants->start() + size;
       _constants->set_end(dest + BytesPerLong);
       *(jlong*) dest = CiConstant::primitive(constant);
--- a/src/share/vm/graal/graalJavaAccess.hpp	Mon Dec 05 20:00:57 2011 +0100
+++ b/src/share/vm/graal/graalJavaAccess.hpp	Mon Dec 05 18:15:25 2011 -0800
@@ -125,6 +125,7 @@
   end_class                                                                             \
   start_class(CiTargetMethod_DataPatch)                                                 \
     oop_field(CiTargetMethod_DataPatch, constant, "Lcom/sun/cri/ci/CiConstant;")        \
+    int_field(CiTargetMethod_DataPatch, alignment)                                      \
   end_class                                                                             \
   start_class(CiTargetMethod_Safepoint)                                                 \
     oop_field(CiTargetMethod_Safepoint, debugInfo, "Lcom/sun/cri/ci/CiDebugInfo;")      \