MIPS: Initial version of optimizing compiler for MIPS64R6.

Bug: 21555893
Change-Id: I874dc356eee6ab061a32f8f3df5f8ac3a4ab7dcf
Signed-off-by: Alexey Frunze <Alexey.Frunze@imgtec.com>
Signed-off-by: Douglas Leung <douglas.leung@imgtec.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/disassembler/disassembler_mips.h b/disassembler/disassembler_mips.h
index 67c3fcb71f..4f70a9b523 100644
--- a/disassembler/disassembler_mips.h
+++ b/disassembler/disassembler_mips.h
@@ -27,7 +27,9 @@ namespace mips {
 class DisassemblerMips FINAL : public Disassembler {
  public:
   explicit DisassemblerMips(DisassemblerOptions* options, bool is64bit) : Disassembler(options),
-      is64bit_(is64bit) {}
+      is64bit_(is64bit),
+      last_ptr_(nullptr),
+      last_instr_(0) {}
 
   size_t Dump(std::ostream& os, const uint8_t* begin) OVERRIDE;
   void Dump(std::ostream& os, const uint8_t* begin, const uint8_t* end) OVERRIDE;
@@ -35,6 +37,11 @@ class DisassemblerMips FINAL : public Disassembler {
  private:
   const bool is64bit_;
 
+  // Address and encoding of the last disassembled instruction.
+  // Needed to produce more readable disassembly of certain 2-instruction sequences.
+  const uint8_t* last_ptr_;
+  uint32_t last_instr_;
+
   DISALLOW_COPY_AND_ASSIGN(DisassemblerMips);
 };