From 27bb86edf60e2f9ca2c1075c0c86b9e79374f1d0 Mon Sep 17 00:00:00 2001 From: Vladimir Marko Date: Thu, 14 Apr 2016 18:07:55 +0100 Subject: Use dex cache from compilation unit in RTP. Avoid calling the costly ClassLinker::FindDexCache() from reference type propagation when the dex cache from the compilation unit will do, i.e. almost always. Compiling the Nexus 5 boot image on host under perf(1) shows that the FindDexCache() hits drop from about 0.2% to almost nothing, though enabling inlining for the boot image will increase it a bit to 0.03% due to unavoidable calls from the inliner. Also clean up the ScopedObjectAccess usage a bit. Change-Id: I426a5f9f5da9e64fad2ea57654240789a48d3871 --- compiler/optimizing/builder.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'compiler/optimizing/builder.h') diff --git a/compiler/optimizing/builder.h b/compiler/optimizing/builder.h index 4f46d5edda..580ef72767 100644 --- a/compiler/optimizing/builder.h +++ b/compiler/optimizing/builder.h @@ -51,7 +51,7 @@ class HGraphBuilder : public ValueObject { compiler_driver_(driver), compilation_stats_(compiler_stats), block_builder_(graph, dex_file, code_item), - ssa_builder_(graph, handles), + ssa_builder_(graph, dex_compilation_unit->GetDexCache(), handles), instruction_builder_(graph, &block_builder_, &ssa_builder_, @@ -78,7 +78,7 @@ class HGraphBuilder : public ValueObject { null_dex_cache_(), compilation_stats_(nullptr), block_builder_(graph, nullptr, code_item), - ssa_builder_(graph, handles), + ssa_builder_(graph, null_dex_cache_, handles), instruction_builder_(graph, &block_builder_, &ssa_builder_, -- cgit v1.2.3-59-g8ed1b