commit 390f59f9bec64fd81b05e796dfaeb03ab6d4cc81
author Nicolas Geoffray <ngeoffray@google.com> Fri Dec 12 19:22:03 2014 +0000
committer Nicolas Geoffray <ngeoffray@google.com> Wed Dec 17 11:53:33 2014 +0000
tree d418b4a488390d718144bf5a5a180d965d1d762e
parent 240016da1d6615b26c8342bdeb4bae381570ac47

Small optimization for recursive calls: avoid dex cache.

Change-Id: Ic4054b6c38f0a2a530ba6ef747647f86cee0b1b8

compiler/optimizing/code_generator_arm.cc

diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 002d9d4..499f068 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -1194,13 +1194,14 @@
   // temp = temp->dex_cache_resolved_methods_;
   __ LoadFromOffset(
       kLoadWord, temp, temp, mirror::ArtMethod::DexCacheResolvedMethodsOffset().Int32Value());
-  // temp = temp[index_in_cache]
-  __ LoadFromOffset(
-      kLoadWord, temp, temp, CodeGenerator::GetCacheOffset(invoke->GetIndexInDexCache()));
-  // LR = temp[offset_of_quick_compiled_code]
-  __ LoadFromOffset(kLoadWord, LR, temp,
-                     mirror::ArtMethod::EntryPointFromQuickCompiledCodeOffset(
-                         kArmWordSize).Int32Value());
+  if (!invoke->GetIsRecursive()) {
+    // temp = temp[index_in_cache]
+    __ LoadFromOffset(
+        kLoadWord, temp, temp, CodeGenerator::GetCacheOffset(invoke->GetIndexInDexCache()));
+    // LR = temp[offset_of_quick_compiled_code]
+    __ LoadFromOffset(kLoadWord, LR, temp, mirror::ArtMethod::EntryPointFromQuickCompiledCodeOffset(
+        kArmWordSize).Int32Value());
+  }
   // LR()
   __ blx(LR);