commit f36cb5f65cb150151aa40b23937e2b0ad75cc546
author Mathieu Chartier <mathieuc@google.com> Fri Apr 24 16:55:16 2015 -0700
committer Andreas Gampe <agampe@google.com> Sat Apr 25 22:08:16 2015 +0000
tree 25365c69a089bc491a4b070ee3403be964cfc606
parent 33984b4d6b79b2d65258e69506e5669be704db82

Move Class.newInstance to native

Avoids 1 allocation and several JNI transitions.

Before:
Class_classNewInstance: 4462.39 ns; σ=39.42 ns @ 3 trials

After:
Class_classNewInstance: 1073.39 ns; σ=24.14 ns @ 10 trials

Bug: 20269715
Bug: 20566996
Change-Id: Icd52155ce79a978a4d869855bfdfd7735abd8187

compiler/jit/jit_compiler.cc

diff --git a/compiler/jit/jit_compiler.cc b/compiler/jit/jit_compiler.cc
index 6a08548..7c400ee 100644
--- a/compiler/jit/jit_compiler.cc
+++ b/compiler/jit/jit_compiler.cc
@@ -62,7 +62,7 @@
 
 JitCompiler::JitCompiler() : total_time_(0) {
   auto* pass_manager_options = new PassManagerOptions;
-  pass_manager_options->SetDisablePassList("GVN,DCE");
+  pass_manager_options->SetDisablePassList("GVN,DCE,GVNCleanup");
   compiler_options_.reset(new CompilerOptions(
       CompilerOptions::kDefaultCompilerFilter,
       CompilerOptions::kDefaultHugeMethodThreshold,