Add out-of-line constant pool support to Arm.

src/arm/builtins-arm.cc

Index: src/arm/builtins-arm.cc
diff --git a/src/arm/builtins-arm.cc b/src/arm/builtins-arm.cc
index f53f293cef7d78ba377e722eb05f11c9aae691a4..c2dd341e95d41c3924d2278a0b1d5a9f474ba3a4 100644
--- a/src/arm/builtins-arm.cc
+++ b/src/arm/builtins-arm.cc
@@ -962,12 +962,17 @@ void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
 
   // Load deoptimization data from the code object.
   // <deopt_data> = <code>[#deoptimization_data_offset]
-  __ ldr(r1, MemOperand(r0, Code::kDeoptimizationDataOffset - kHeapObjectTag));
+  __ ldr(r1, FieldMemOperand(r0, Code::kDeoptimizationDataOffset));
+
+  ConstantPoolUnavailableScope constant_pool_unavailable(masm);

[ulan, 2014/03/18 12:27:51]

As discussed in one of the previous CLs, let's make the extent of the scope more
clear by putting it in { }.

[rmcilroy, 2014/03/18 15:14:35]

Done.

+  if (FLAG_enable_ool_constant_pool) {
+    __ ldr(pp, FieldMemOperand(r0, Code::kConstantPoolOffset));
+  }
 
   // Load the OSR entrypoint offset from the deoptimization data.
   // <osr_offset> = <deopt_data>[#header_size + #osr_pc_offset]
-  __ ldr(r1, MemOperand(r1, FixedArray::OffsetOfElementAt(
-      DeoptimizationInputData::kOsrPcOffsetIndex) - kHeapObjectTag));
+  __ ldr(r1, FieldMemOperand(r1, FixedArray::OffsetOfElementAt(
+      DeoptimizationInputData::kOsrPcOffsetIndex)));
 
   // Compute the target address = code_obj + header_size + osr_offset
   // <entry_addr> = <code_obj> + #header_size + <osr_offset>