Add X86/X86_64 support for CMOV from memory.

Add support for the memory form of CMOV.  Add tests.

Change-Id: Ib9f5dbd3031c7e235ee3f2afdb7db75eed46277a
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
diff --git a/compiler/utils/x86/assembler_x86.cc b/compiler/utils/x86/assembler_x86.cc
index 7138a46..3efef70 100644
--- a/compiler/utils/x86/assembler_x86.cc
+++ b/compiler/utils/x86/assembler_x86.cc
@@ -326,6 +326,14 @@
 }
 
 
+void X86Assembler::cmovl(Condition condition, Register dst, const Address& src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x0F);
+  EmitUint8(0x40 + condition);
+  EmitOperand(dst, src);
+}
+
+
 void X86Assembler::setb(Condition condition, Register dst) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0x0F);