Added fast support for Math.pow. This simply calculates the result using the...

src/ia32/assembler-ia32.h

Index: src/ia32/assembler-ia32.h
===================================================================
--- src/ia32/assembler-ia32.h	(revision 3937)
+++ src/ia32/assembler-ia32.h	(working copy)
@@ -93,7 +93,7 @@
 
 
 struct XMMRegister {
-  bool is_valid() const  { return 0 <= code_ && code_ < 2; }  // currently
+  bool is_valid() const  { return 0 <= code_ && code_ < 8; }
   int code() const  {
     ASSERT(is_valid());
     return code_;
@@ -620,6 +620,8 @@
   void shr(Register dst, uint8_t imm8);
   void shr_cl(Register dst);
 
+  void sqrt(XMMRegister dst, XMMRegister src);
+
   void subb(const Operand& dst, int8_t imm8);
   void subb(Register dst, const Operand& src);
   void sub(const Operand& dst, const Immediate& x);
@@ -754,6 +756,7 @@
   void cvttsd2si(Register dst, const Operand& src);
 
   void cvtsi2sd(XMMRegister dst, const Operand& src);
+  void cvtss2sd(XMMRegister dst, XMMRegister src);
 
   void addsd(XMMRegister dst, XMMRegister src);
   void subsd(XMMRegister dst, XMMRegister src);
@@ -772,6 +775,12 @@
   void movdbl(XMMRegister dst, const Operand& src);
   void movdbl(const Operand& dst, XMMRegister src);
 
+  void movd(XMMRegister dst, const Operand& src);
+  void movsd(XMMRegister dst, XMMRegister src);
+
+  void pxor(XMMRegister dst, XMMRegister src);
+  void ptest(XMMRegister dst, XMMRegister src);
+
   // Debugging
   void Print();