Add BL (immediate) and BLX (register) to ARM assembler.

src/DartARM32/assembler_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.
 //
 // This is forked from Dart revision df52deea9f25690eb8b66c5995da92b70f7ac1fe
 // Please update the (git) revision if we merge changes from Dart.
 // https://code.google.com/p/dart/wiki/GettingTheSource
 
 #include "vm/globals.h"  // NOLINT
 #if defined(TARGET_ARCH_ARM)
@@ skipping 1449 matching lines @@
   EmitSIMDqqq(B24 | B9 | B8, sz, qd, qn, qm);
 }
 
 
 void Assembler::vcgtqs(QRegister qd, QRegister qn, QRegister qm) {
   EmitSIMDqqq(B24 | B21 | B11 | B10 | B9, kSWord, qd, qn, qm);
 }
 
 
 #if 0
-// Moved to: ARM32::AssemblerARM32::bkpt()
+// Moved to ARM32::AssemblerARM32::bkpt()
 void Assembler::bkpt(uint16_t imm16) {
   Emit(BkptEncoding(imm16));
 }
 #endif
 
 
 void Assembler::b(Label* label, Condition cond) {
   EmitBranch(cond, label, false);
 }
 
 
+#if 0
+// Moved to ARM32::AssemblerARM32::bl()
 void Assembler::bl(Label* label, Condition cond) {
   EmitBranch(cond, label, true);
 }
 
-#if 0
-// Moved to: ARM32::AssemblerARM32::bx()
+// Moved to ARM32::AssemblerARM32::bx()
 void Assembler::bx(Register rm, Condition cond) {
   ASSERT(rm != kNoRegister);
   ASSERT(cond != kNoCondition);
   int32_t encoding = (static_cast<int32_t>(cond) << kConditionShift) |
                      B24 | B21 | (0xfff << 8) | B4 |
                      (static_cast<int32_t>(rm) << kRmShift);
   Emit(encoding);
 }
-#endif
 
-
+// Moved to ARM32::AssemblerARM32::blx()
 void Assembler::blx(Register rm, Condition cond) {
   ASSERT(rm != kNoRegister);
   ASSERT(cond != kNoCondition);
   int32_t encoding = (static_cast<int32_t>(cond) << kConditionShift) |
                      B24 | B21 | (0xfff << 8) | B5 | B4 |
                      (static_cast<int32_t>(rm) << kRmShift);
   Emit(encoding);
 }
+#endif
 
 
 void Assembler::MarkExceptionHandler(Label* label) {
   EmitType01(AL, 1, TST, 1, PC, R0, Operand(0));
   Label l;
   b(&l);
   EmitBranch(AL, label, false);
   Bind(&l);
 }
 
@@ skipping 832 matching lines @@
       int32_t next = buffer_.Load<int32_t>(position);
       int32_t encoded = Assembler::EncodeBranchOffset(dest, next);
       buffer_.Store<int32_t>(position, encoded);
       label->position_ = Assembler::DecodeBranchOffset(next);
     }
   }
   label->BindTo(bound_pc);
 }
 
 #if 0
-// Moved to: ARM32::AssemblerARM32::bind(Label* Label)
+// Moved to ARM32::AssemblerARM32::bind(Label* Label)
 // Note: Most of this code isn't needed because instruction selection has
 // already been handler
 void Assembler::BindARMv7(Label* label) {
   ASSERT(!label->IsBound());
   intptr_t bound_pc = buffer_.Size();
   while (label->IsLinked()) {
     const int32_t position = label->Position();
     int32_t dest = bound_pc - position;
     if (use_far_branches() && !CanEncodeBranchOffset(dest)) {
       // Far branches are enabled and we can't encode the branch offset.
@@ skipping 1320 matching lines @@
 
 
 const char* Assembler::FpuRegisterName(FpuRegister reg) {
   ASSERT((0 <= reg) && (reg < kNumberOfFpuRegisters));
   return fpu_reg_names[reg];
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM