Tweak inlining heuristics.

go/lem driven:

Performance:
Richards +41%
CaffeineMethod +43%
ReversiBench: +52%
Towers: +73%
Tak: +85%

Memory use: 7% less memory
CompileTime: 14% increase
CodeSize: 8% increase

Last three measures are now more acceptable given we JIT.

Change-Id: Ic4aa6535d2b76cf3545ef00e9b2ae32330f10745

1 files changed, 4 insertions, 1 deletions

diff --git a/compiler/optimizing/inliner.h b/compiler/optimizing/inliner.h
index 7b9fb73ccf..8de510ea37 100644
--- a/compiler/optimizing/inliner.h
+++ b/compiler/optimizing/inliner.h
@@ -40,13 +40,15 @@ class HInliner : public HOptimization {
            CompilerDriver* compiler_driver,
            StackHandleScopeCollection* handles,
            OptimizingCompilerStats* stats,
-           size_t depth = 0)
+           size_t total_number_of_dex_registers,
+           size_t depth)
       : HOptimization(outer_graph, kInlinerPassName, stats),
         outermost_graph_(outermost_graph),
         outer_compilation_unit_(outer_compilation_unit),
         caller_compilation_unit_(caller_compilation_unit),
         codegen_(codegen),
         compiler_driver_(compiler_driver),
+        total_number_of_dex_registers_(total_number_of_dex_registers),
         depth_(depth),
         number_of_inlined_instructions_(0),
         handles_(handles) {}
@@ -88,6 +90,7 @@ class HInliner : public HOptimization {
   const DexCompilationUnit& caller_compilation_unit_;
   CodeGenerator* const codegen_;
   CompilerDriver* const compiler_driver_;
+  const size_t total_number_of_dex_registers_;
   const size_t depth_;
   size_t number_of_inlined_instructions_;
   StackHandleScopeCollection* const handles_;