Add andw for memory to x86 assembler.

Test: assembler_x86_test
Change-Id: I5866557f9498f6e5f5713fff2ce58c70e47bd74b
diff --git a/compiler/utils/x86/assembler_x86_test.cc b/compiler/utils/x86/assembler_x86_test.cc
index 305f3c4..d1c2cbe 100644
--- a/compiler/utils/x86/assembler_x86_test.cc
+++ b/compiler/utils/x86/assembler_x86_test.cc
@@ -305,6 +305,10 @@
   DriverStr(RepeatAI(&x86::X86Assembler::addw, /*imm_bytes*/ 2U, "addw ${imm}, {mem}"), "addw");
 }
 
+TEST_F(AssemblerX86Test, Andw) {
+  DriverStr(RepeatAI(&x86::X86Assembler::andw, /*imm_bytes*/ 2U, "andw ${imm}, {mem}"), "andw");
+}
+
 TEST_F(AssemblerX86Test, MovwStore) {
   DriverStr(RepeatAr(&x86::X86Assembler::movw, "movw %{reg}, {mem}"), "movw-store");
 }