[x64] Introduce BMI instructions.

src/x64/assembler-x64-inl.h

Index: src/x64/assembler-x64-inl.h
diff --git a/src/x64/assembler-x64-inl.h b/src/x64/assembler-x64-inl.h
index df0c7d28ebeddbd4678f2f0c1fef18533e9aed3f..1a20109612ec33d72ceacb09af86cb96c13f74f5 100644
--- a/src/x64/assembler-x64-inl.h
+++ b/src/x64/assembler-x64-inl.h
@@ -234,6 +234,16 @@ void Assembler::emit_vex_prefix(XMMRegister reg, XMMRegister vreg,
 }
 
 
+void Assembler::emit_vex_prefix(Register reg, Register vreg, Register rm,
+                                VectorLength l, SIMDPrefix pp, LeadingOpcode mm,
+                                VexW w) {
+  XMMRegister ireg = {reg.code()};
+  XMMRegister ivreg = {vreg.code()};
+  XMMRegister irm = {rm.code()};
+  emit_vex_prefix(ireg, ivreg, irm, l, pp, mm, w);
+}
+
+
 void Assembler::emit_vex_prefix(XMMRegister reg, XMMRegister vreg,
                                 const Operand& rm, VectorLength l,
                                 SIMDPrefix pp, LeadingOpcode mm, VexW w) {
@@ -248,6 +258,15 @@ void Assembler::emit_vex_prefix(XMMRegister reg, XMMRegister vreg,
 }
 
 
+void Assembler::emit_vex_prefix(Register reg, Register vreg, const Operand& rm,
+                                VectorLength l, SIMDPrefix pp, LeadingOpcode mm,
+                                VexW w) {
+  XMMRegister ireg = {reg.code()};
+  XMMRegister ivreg = {vreg.code()};
+  emit_vex_prefix(ireg, ivreg, rm, l, pp, mm, w);
+}
+
+
 Address Assembler::target_address_at(Address pc,
                                      ConstantPoolArray* constant_pool) {
   return Memory::int32_at(pc) + pc + 4;