Custom call IC for Math.floor.

src/ia32/assembler-ia32.h

Index: src/ia32/assembler-ia32.h
diff --git a/src/ia32/assembler-ia32.h b/src/ia32/assembler-ia32.h
index 928f172894867d52d9d8b6132fd55df5b8cc0d1a..ac8ba5facf39d00ede6ff77b4886c78813f4b26b 100644
--- a/src/ia32/assembler-ia32.h
+++ b/src/ia32/assembler-ia32.h
@@ -788,9 +788,15 @@ class Assembler : public Malloced {
   void xorpd(XMMRegister dst, XMMRegister src);
   void sqrtsd(XMMRegister dst, XMMRegister src);
 
+  void andpd(XMMRegister dst, const Operand& src);
+
   void ucomisd(XMMRegister dst, XMMRegister src);
   void movmskpd(Register dst, XMMRegister src);
 
+  void cmpltsd(XMMRegister dst, XMMRegister src);
+
+  void movaps(XMMRegister dst, const Operand& src);
+
   void movdqa(XMMRegister dst, const Operand& src);
   void movdqa(const Operand& dst, XMMRegister src);
   void movdqu(XMMRegister dst, const Operand& src);
@@ -806,6 +812,8 @@ class Assembler : public Malloced {
   void pxor(XMMRegister dst, XMMRegister src);
   void ptest(XMMRegister dst, XMMRegister src);
 
+  void psllq(XMMRegister reg, int8_t imm8);
+
   // Parallel XMM operations.
   void movntdqa(XMMRegister src, const Operand& dst);
   void movntdq(const Operand& dst, XMMRegister src);