Enables language tests for SIMMIPS.

runtime/vm/instructions_mips.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_MIPS.
 #if defined(TARGET_ARCH_MIPS)
 
 #include "vm/constants_mips.h"
+#include "vm/cpu.h"
 #include "vm/instructions.h"
 #include "vm/object.h"
 
 namespace dart {
 
 CallPattern::CallPattern(uword pc, const Code& code)
     : end_(reinterpret_cast<uword*>(pc)),
       target_address_pool_index_(-1),
       args_desc_load_end_(-1),
       args_desc_(Array::Handle()),
@@ skipping 132 matching lines @@
 
 void CallPattern::SetTargetAddress(uword target_address) const {
   ASSERT(Utils::IsAligned(target_address, 4));
   // The address is stored in the object array as a RawSmi.
   const Smi& smi = Smi::Handle(reinterpret_cast<RawSmi*>(target_address));
   object_pool_.SetAt(target_address_pool_index_, smi);
   // No need to flush the instruction cache, since the code is not modified.
 }
 
 
+void CallPattern::InsertAt(uword pc, uword target_address) {
+  Instr* lui = Instr::At(pc + (0 * Instr::kInstrSize));
+  Instr* ori = Instr::At(pc + (1 * Instr::kInstrSize));
+  Instr* jr = Instr::At(pc + (2 * Instr::kInstrSize));
+  Instr* nop = Instr::At(pc + (3 * Instr::kInstrSize));
+  uint16_t target_lo = target_address & 0xffff;
+  uint16_t target_hi = target_address >> 16;
+
+  lui->SetImmInstrBits(LUI, ZR, TMP1, target_hi);
+  ori->SetImmInstrBits(ORI, TMP1, TMP1, target_lo);
+  jr->SetSpecialInstrBits(JALR, TMP1, ZR, RA);
+  nop->SetInstructionBits(Instr::kNopInstruction);
+
+  ASSERT(kFixedLengthInBytes == 4 * Instr::kInstrSize);
+  CPU::FlushICache(pc, kFixedLengthInBytes);
+}
+
+
 JumpPattern::JumpPattern(uword pc) : pc_(pc) { }
 
 
 bool JumpPattern::IsValid() const {
   Instr* lui = Instr::At(pc_ + (0 * Instr::kInstrSize));
   Instr* ori = Instr::At(pc_ + (1 * Instr::kInstrSize));
   Instr* jr = Instr::At(pc_ + (2 * Instr::kInstrSize));
   Instr* nop = Instr::At(pc_ + (3 * Instr::kInstrSize));
   return (lui->OpcodeField() == LUI) &&
          (ori->OpcodeField() == ORI) &&
@@ skipping 21 matching lines @@
   const uint16_t target_hi = target_address >> 16;
 
   lui->SetInstructionBits((lui_bits & 0xffff0000) | target_hi);
   ori->SetInstructionBits((ori_bits & 0xffff0000) | target_lo);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS