commit 736b560f2d2c89b63dc895888c671b5519afa4c8
author Mathieu Chartier <mathieuc@google.com> Wed Sep 02 14:54:11 2015 -0700
committer Mathieu Chartier <mathieuc@google.com> Thu Sep 03 13:27:19 2015 -0700
tree d5aee7ac36f458a5f6e6d75fceb19f8963a71db5
parent fe3879e6011f629d0dd6b04fab00b9496bd4ea08

Reduce how often we call FindDexCache

Before host boot.oat -j4 optimizing compile:
real  1m17.792s
user  3m26.140s
sys 0m8.340s

After:
real  1m12.324s
user  3m22.718s
sys 0m8.320s

Change-Id: If18e9e79e06cdf1676692e5efacb682bf93889c3

compiler/dex/quick/quick_compiler.cc

diff --git a/compiler/dex/quick/quick_compiler.cc b/compiler/dex/quick/quick_compiler.cc
index 3642b82..b5ecf9c 100644
--- a/compiler/dex/quick/quick_compiler.cc
+++ b/compiler/dex/quick/quick_compiler.cc
@@ -663,7 +663,8 @@
                                        uint16_t class_def_idx,
                                        uint32_t method_idx,
                                        jobject class_loader,
-                                       const DexFile& dex_file) const {
+                                       const DexFile& dex_file,
+                                       Handle<mirror::DexCache> dex_cache) const {
   if (kPoisonHeapReferences) {
     VLOG(compiler) << "Skipping method : " << PrettyMethod(method_idx, dex_file)
                    << "  Reason = Quick does not support heap poisoning.";
@@ -749,7 +750,7 @@
 
   /* Build the raw MIR graph */
   cu.mir_graph->InlineMethod(code_item, access_flags, invoke_type, class_def_idx, method_idx,
-                             class_loader, dex_file);
+                             class_loader, dex_file, dex_cache);
 
   if (!CanCompileMethod(method_idx, dex_file, &cu)) {
     VLOG(compiler)  << cu.instruction_set << ": Cannot compile method : "

compiler/dex/quick/quick_compiler.h

diff --git a/compiler/dex/quick/quick_compiler.h b/compiler/dex/quick/quick_compiler.h
index 4a39ab3..d512b25 100644
--- a/compiler/dex/quick/quick_compiler.h
+++ b/compiler/dex/quick/quick_compiler.h
@@ -21,6 +21,10 @@
 
 namespace art {
 
+namespace mirror {
+class DexCache;
+}
+
 class Compiler;
 class CompilerDriver;
 class Mir2Lir;
@@ -43,7 +47,8 @@
                           uint16_t class_def_idx,
                           uint32_t method_idx,
                           jobject class_loader,
-                          const DexFile& dex_file) const OVERRIDE;
+                          const DexFile& dex_file,
+                          Handle<mirror::DexCache> dex_cache) const OVERRIDE;
 
   CompiledMethod* JniCompile(uint32_t access_flags,
                              uint32_t method_idx,