Optimizing/X86: PC-relative dex cache array addressing.

Add PC-relative dex cache array addressing for X86 and use
it for better invoke-static/-direct dispatch. Also delay
the initialization to the PC-relative base until needed.

Change-Id: Ib8634d5edce4920cd70172fd13211809cf6948d1

1 files changed, 10 insertions, 0 deletions

diff --git a/compiler/optimizing/nodes.cc b/compiler/optimizing/nodes.cc
index de3f2668b6..83f53d791b 100644
--- a/compiler/optimizing/nodes.cc
+++ b/compiler/optimizing/nodes.cc
@@ -1972,6 +1972,16 @@ bool HInvokeStaticOrDirect::NeedsDexCacheOfDeclaringClass() const {
   return !opt.GetDoesNotNeedDexCache();
 }
 
+void HInvokeStaticOrDirect::InsertInputAt(size_t index, HInstruction* input) {
+  inputs_.insert(inputs_.begin() + index, HUserRecord<HInstruction*>(input));
+  input->AddUseAt(this, index);
+  // Update indexes in use nodes of inputs that have been pushed further back by the insert().
+  for (size_t i = index + 1u, size = inputs_.size(); i != size; ++i) {
+    DCHECK_EQ(InputRecordAt(i).GetUseNode()->GetIndex(), i - 1u);
+    InputRecordAt(i).GetUseNode()->SetIndex(i);
+  }
+}
+
 void HInvokeStaticOrDirect::RemoveInputAt(size_t index) {
   RemoveAsUserOfInput(index);
   inputs_.erase(inputs_.begin() + index);