Support unboxed input to indirect goto instruction.

runtime/vm/intermediate_language_arm.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/cpu.h"
@@ skipping 6760 matching lines @@
 
 
 void IndirectGotoInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   Register target_address_reg = locs()->temp_slot(0)->reg();
 
   // Load from [current frame pointer] + kPcMarkerSlotFromFp.
   __ ldr(target_address_reg, Address(FP, kPcMarkerSlotFromFp * kWordSize));
 
   // Add the offset.
   Register offset_reg = locs()->in(0).reg();
-  __ add(target_address_reg,
-         target_address_reg,
-         Operand(offset_reg, ASR, kSmiTagSize));
+  Operand offset_opr =
+      offset()->definition()->representation() == kTagged ?

[Vyacheslav Egorov (Google), 2015/01/09 15:49:21]

consider ( ) around comparison.

[zerny-google, 2015/01/12 06:05:14]

Done.

+      Operand(offset_reg, ASR, kSmiTagSize) :
+      Operand(offset_reg);
+  __ add(target_address_reg, target_address_reg, offset_opr);
 
   // Jump to the absolute address.
   __ bx(target_address_reg);
 }
 
 
 LocationSummary* StrictCompareInstr::MakeLocationSummary(Isolate* isolate,
                                                          bool opt) const {
   const intptr_t kNumInputs = 2;
   const intptr_t kNumTemps = 0;
@@ skipping 132 matching lines @@
   compiler->GenerateCall(token_pos(), &label, stub_kind_, locs());
 #if defined(DEBUG)
   __ LoadImmediate(R4, kInvalidObjectPointer);
   __ LoadImmediate(R5, kInvalidObjectPointer);
 #endif
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM