MIPS[64]: Optimize kMips[64]Tst in code-generator-mips[64].cc

src/mips64/macro-assembler-mips64.h

Index: src/mips64/macro-assembler-mips64.h
diff --git a/src/mips64/macro-assembler-mips64.h b/src/mips64/macro-assembler-mips64.h
index ade5393f2e01f72b93a8c3cc52442bfeaae7639d..5a1cf27c083ba7dfb1f643209476775c13a70bdf 100644
--- a/src/mips64/macro-assembler-mips64.h
+++ b/src/mips64/macro-assembler-mips64.h
@@ -873,6 +873,9 @@ class MacroAssembler: public Assembler {
   void Ins(Register rt, Register rs, uint16_t pos, uint16_t size);
   void Dins(Register rt, Register rs, uint16_t pos, uint16_t size);
   void Ext(Register rt, Register rs, uint16_t pos, uint16_t size);
+
+  void ExtractBits(Register rt, Register rs, uint16_t pos, uint16_t size);
+
   void Dext(Register rt, Register rs, uint16_t pos, uint16_t size);
   void Dextm(Register rt, Register rs, uint16_t pos, uint16_t size);
   void Dextu(Register rt, Register rs, uint16_t pos, uint16_t size);