ART: Introduce stackmap with no DexRegInfo.

Some of safepoints don't need to have DexRegisterMap info;
this will decrease the stackmap size.

.oat file size reduction:
 - boot.oat:           -233 kb (-5.4%)
 - boot-framework.oat: -704 kb (-4.9%)

Test: 461-get-reference-vreg, 466-get-live-vreg.
Test: 543-env-long-ref, 616-cha*.
Test: test-art-target, +gc-stress.

Change-Id: Idbad355770e30a30dcf14127642e03ee666878b8

1 files changed, 2 insertions, 0 deletions

diff --git a/compiler/optimizing/instruction_builder.cc b/compiler/optimizing/instruction_builder.cc
index f8f813e3fd..e7f0872c65 100644
--- a/compiler/optimizing/instruction_builder.cc
+++ b/compiler/optimizing/instruction_builder.cc
@@ -3096,6 +3096,7 @@ bool HInstructionBuilder::ProcessDexInstruction(const Instruction& instruction,
           LoadLocal(instruction.VRegA_11x(), DataType::Type::kReference),
           HMonitorOperation::OperationKind::kEnter,
           dex_pc));
+      graph_->SetHasMonitorOperations(true);
       break;
     }
 
@@ -3104,6 +3105,7 @@ bool HInstructionBuilder::ProcessDexInstruction(const Instruction& instruction,
           LoadLocal(instruction.VRegA_11x(), DataType::Type::kReference),
           HMonitorOperation::OperationKind::kExit,
           dex_pc));
+      graph_->SetHasMonitorOperations(true);
       break;
     }