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, 11 insertions, 1 deletions

diff --git a/compiler/optimizing/optimizing_compiler.cc b/compiler/optimizing/optimizing_compiler.cc
index ba435180e5..37127bbca5 100644
--- a/compiler/optimizing/optimizing_compiler.cc
+++ b/compiler/optimizing/optimizing_compiler.cc
@@ -426,8 +426,18 @@ static void MaybeRunInliner(HGraph* graph,
   if (!should_inline) {
     return;
   }
+  size_t number_of_dex_registers = dex_compilation_unit.GetCodeItem()->registers_size_;
   HInliner* inliner = new (graph->GetArena()) HInliner(
-      graph, graph, codegen, dex_compilation_unit, dex_compilation_unit, driver, handles, stats);
+      graph,
+      graph,
+      codegen,
+      dex_compilation_unit,
+      dex_compilation_unit,
+      driver,
+      handles,
+      stats,
+      number_of_dex_registers,
+      /* depth */ 0);
   HOptimization* optimizations[] = { inliner };
 
   RunOptimizations(optimizations, arraysize(optimizations), pass_observer);