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
diff --git a/compiler/optimizing/stack_map_stream.cc b/compiler/optimizing/stack_map_stream.cc
index afb6071c..3f6010d 100644
--- a/compiler/optimizing/stack_map_stream.cc
+++ b/compiler/optimizing/stack_map_stream.cc
@@ -81,7 +81,8 @@
uint32_t native_pc_offset,
uint32_t register_mask,
BitVector* stack_mask,
- StackMap::Kind kind) {
+ StackMap::Kind kind,
+ bool needs_vreg_info) {
DCHECK(in_method_) << "Call BeginMethod first";
DCHECK(!in_stack_map_) << "Mismatched Begin/End calls";
in_stack_map_ = true;
@@ -114,7 +115,7 @@
lazy_stack_masks_.push_back(stack_mask);
current_inline_infos_.clear();
current_dex_registers_.clear();
- expected_num_dex_registers_ = num_dex_registers_;
+ expected_num_dex_registers_ = needs_vreg_info ? num_dex_registers_ : 0u;
if (kVerifyStackMaps) {
size_t stack_map_index = stack_maps_.size();