commit 74979b1a78a6d66fbdcf0545f17004cced69f196
author Andreas Gampe <agampe@google.com> Tue May 16 09:28:06 2017 -0700
committer Andreas Gampe <agampe@google.com> Tue May 16 09:54:22 2017 -0700
tree 59d2f91930470998f20021378da903587570217b
parent b3937e31102538baf27a6e9088638c5e3ff1ca34

ART: Add UNLIKELY in verifier

INVOKE_POLYMORPHIC is unlikely, at this point. Perf shows compiler
optimizations assuming the branch is taken.

Bug: 10921004
Test: m test-art-host
Change-Id: I161327d5c0399de75ff3fc79fa4d762cadbffe20

runtime/verifier/method_verifier.cc

diff --git a/runtime/verifier/method_verifier.cc b/runtime/verifier/method_verifier.cc
index bbea474..81bf293 100644
--- a/runtime/verifier/method_verifier.cc
+++ b/runtime/verifier/method_verifier.cc
@@ -4347,7 +4347,7 @@
     }
   }
 
-  if (method_type == METHOD_POLYMORPHIC) {
+  if (UNLIKELY(method_type == METHOD_POLYMORPHIC)) {
     // Process the signature of the calling site that is invoking the method handle.
     DexFileParameterIterator it(*dex_file_, dex_file_->GetProtoId(inst->VRegH()));
     return VerifyInvocationArgsFromIterator(&it, inst, method_type, is_range, res_method);