Implemented missing move/exchange paths for x86

Rationale:
Recent SIMD register spilling bug fix exposed missing
cases in the x86 and x86_64 code generator for moving
and exchanging SIMD spill slots.

Test: run-test --host  -Xcompiler-option --instruction-set-features=sse4.1 623-checker-loop-regressions (32/64)

Bug: 70559970
Change-Id: Iae66d6874b93af5b2db80db70bce4b0f4a9b9f3f
diff --git a/compiler/optimizing/code_generator_x86_64.h b/compiler/optimizing/code_generator_x86_64.h
index 00c5c27..e86123e 100644
--- a/compiler/optimizing/code_generator_x86_64.h
+++ b/compiler/optimizing/code_generator_x86_64.h
@@ -139,11 +139,12 @@
  private:
   void Exchange32(CpuRegister reg, int mem);
   void Exchange32(XmmRegister reg, int mem);
-  void Exchange32(int mem1, int mem2);
   void Exchange64(CpuRegister reg1, CpuRegister reg2);
   void Exchange64(CpuRegister reg, int mem);
   void Exchange64(XmmRegister reg, int mem);
-  void Exchange64(int mem1, int mem2);
+  void Exchange128(XmmRegister reg, int mem);
+  void ExchangeMemory32(int mem1, int mem2);
+  void ExchangeMemory64(int mem1, int mem2, int num_of_qwords);
 
   CodeGeneratorX86_64* const codegen_;