SWDEV-545476 - memleak valgrind fixes for atomics and compiler (#470)

fixes SWDEV-545476 and SWDEV-545493

catch/unit/atomics/unsafeAtomicAdd.cc

@@ -172,6 +172,7 @@ TEMPLATE_TEST_CASE("Unit_unsafe_atomic_add_half_and_bfloat", "", __half2, __hip_
 
   REQUIRE(hout.x == 32.0f);
   REQUIRE(hout.y == 64.0f);
+  HIP_CHECK(hipFree(out));
 }
 
 /**

catch/unit/compiler/hipSquare.cc

@@ -78,6 +78,10 @@ TEST_CASE("Unit_test_compressed_codeobject") {
           HIP_CHECK(hipErrorUnknown);
       }
   }
+  HIP_CHECK(hipFree(A_d));
+  HIP_CHECK(hipFree(C_d));
+  free(A_h);
+  free(C_h);
   printf("PASSED!\n");
   REQUIRE(true);
 }