Add a cache-friendly version of the tests.

This only tests CACHE_FRIENDLY_OFFSET=64, which is probably what we'll be using in the end.

CMakeLists.txt

@@ -79,20 +79,29 @@ enable_testing()
 
 set(TESTDIR ${CMAKE_CURRENT_SOURCE_DIR}/src/test)
 subdirlist(TEST_CATEGORIES ${TESTDIR})
-foreach(SUPER_SLAB_SIZE 1;16)
-  foreach(TEST_CATEGORY ${TEST_CATEGORIES})
-    subdirlist(TESTS ${TESTDIR}/${TEST_CATEGORY})
-    foreach(TEST ${TESTS})
-      unset(SRC)
-      aux_source_directory(${TESTDIR}/${TEST_CATEGORY}/${TEST} SRC)
-      set(TESTNAME "${TEST_CATEGORY}-${TEST}-${SUPER_SLAB_SIZE}")
-      add_executable(${TESTNAME} ${SRC} src/override/new.cc)
-      if (${SUPER_SLAB_SIZE} EQUAL 1)
-        target_compile_definitions(${TESTNAME} PRIVATE IS_ADDRESS_SPACE_CONSTRAINED)
-      endif()
-      target_include_directories(${TESTNAME} PRIVATE src)
-      linklibs(${TESTNAME})
-      add_test(${TESTNAME} ${TESTNAME})
+foreach(TEST_CACHE_FRIENDLY_OFFSET OFF;ON)
+  foreach(SUPER_SLAB_SIZE 1;16)
+    foreach(TEST_CATEGORY ${TEST_CATEGORIES})
+      subdirlist(TESTS ${TESTDIR}/${TEST_CATEGORY})
+      foreach(TEST ${TESTS})
+        unset(SRC)
+        aux_source_directory(${TESTDIR}/${TEST_CATEGORY}/${TEST} SRC)
+        set(TESTNAME "${TEST_CATEGORY}-${TEST}-${SUPER_SLAB_SIZE}")
+        if (TEST_CACHE_FRIENDLY_OFFSET)
+          set(TESTNAME "${TESTNAME}-cache-friendly")
+        endif()
+
+        add_executable(${TESTNAME} ${SRC} src/override/new.cc)
+        if (${SUPER_SLAB_SIZE} EQUAL 1)
+          target_compile_definitions(${TESTNAME} PRIVATE IS_ADDRESS_SPACE_CONSTRAINED)
+        endif()
+        if(TEST_CACHE_FRIENDLY_OFFSET)
+          target_compile_definitions(${TESTNAME} PRIVATE CACHE_FRIENDLY_OFFSET=64)
+        endif()
+        target_include_directories(${TESTNAME} PRIVATE src)
+        linklibs(${TESTNAME})
+        add_test(${TESTNAME} ${TESTNAME})
+      endforeach()
     endforeach()
   endforeach()
 endforeach()