SIMD type conversion for x86

Rationale:
Break-out CL of ART Vectorizer: 1 OF many
Needed to demonstrate that same-length
type conversions easily fit the model.

Bug: 34083438
Test: assembler_x86[_64]_test
Change-Id: Ib9959a7e18485ab1629978c61032fcda16792951
diff --git a/compiler/utils/x86_64/assembler_x86_64.h b/compiler/utils/x86_64/assembler_x86_64.h
index 0dc11d8..480e711 100644
--- a/compiler/utils/x86_64/assembler_x86_64.h
+++ b/compiler/utils/x86_64/assembler_x86_64.h
@@ -486,6 +486,7 @@
   void cvttsd2si(CpuRegister dst, XmmRegister src);  // Note: this is the r32 version.
   void cvttsd2si(CpuRegister dst, XmmRegister src, bool is64bit);
 
+  void cvtdq2ps(XmmRegister dst, XmmRegister src);
   void cvtdq2pd(XmmRegister dst, XmmRegister src);
 
   void comiss(XmmRegister a, XmmRegister b);