Remove default argument values in GenerateGcRootFieldLoad.
These values were never or rarely used.
Test: mmma art (with and without `ART_USE_READ_BARRIER=true`)
Bug: 12687968
Bug: 29516974
Change-Id: I5d15140ce501bf50d7a87871b1e492cee54913db
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 9f92b20..660afec 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -5773,7 +5773,7 @@
__ movt(temp, /* placeholder */ 0u);
__ BindTrackedLabel(&labels->add_pc_label);
__ add(temp, temp, ShifterOperand(PC));
- GenerateGcRootFieldLoad(load, out_loc, temp, 0);
+ GenerateGcRootFieldLoad(load, out_loc, temp, /* offset */ 0, kEmitCompilerReadBarrier);
SlowPathCode* slow_path = new (GetGraph()->GetArena()) LoadStringSlowPathARM(load);
codegen_->AddSlowPath(slow_path);
__ CompareAndBranchIfZero(out, slow_path->GetEntryLabel());