Fix 64-bit pointer type for non-x32 ABIs.

BUG=swiftshader:9

Change-Id: Ife06416736d47acba4f2cff1ea8b17be61134752
diff --git a/src/IceTargetLoweringARM32.h b/src/IceTargetLoweringARM32.h
index 9d31b9e..f6cd66b 100644
--- a/src/IceTargetLoweringARM32.h
+++ b/src/IceTargetLoweringARM32.h
@@ -68,6 +68,8 @@
     return false;
   }
 
+  static ::Ice::Type getPointerType() { return ::Ice::IceType_i32; }
+
   // TODO(jvoung): return a unique_ptr.
   static std::unique_ptr<::Ice::TargetLowering> create(Cfg *Func) {
     return makeUnique<TargetARM32>(Func);