SSE2 truncating double-to-i.

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 11acb56110b4171913a4d518d9619491881db796..61352cdc4c1061e15aee6bc2cf669b8e372b0e8e 100644
--- a/src/ia32/assembler-ia32.h
+++ b/src/ia32/assembler-ia32.h
@@ -919,9 +919,14 @@ class Assembler : public Malloced {
 
   void pand(XMMRegister dst, XMMRegister src);
   void pxor(XMMRegister dst, XMMRegister src);
+  void por(XMMRegister dst, XMMRegister src);
   void ptest(XMMRegister dst, XMMRegister src);
 
   void psllq(XMMRegister reg, int8_t shift);
+  void psllq(XMMRegister dst, XMMRegister src);
+  void psrlq(XMMRegister reg, int8_t shift);
+  void psrlq(XMMRegister dst, XMMRegister src);
+  void punpckldq(XMMRegister dst, XMMRegister src);

[Erik Corry, 2011/01/04 22:33:00]

Seems like not all these ended up being needed.  We normally don't add them
unless we use them somewhere.

   void pshufd(XMMRegister dst, XMMRegister src, int8_t shuffle);
   void pextrd(const Operand& dst, XMMRegister src, int8_t offset);