Reland - Arm64: Ensure that csp is always aligned to 16 byte values even if jssp is not.

test/cctest/test-spaces.cc

Index: test/cctest/test-spaces.cc
diff --git a/test/cctest/test-spaces.cc b/test/cctest/test-spaces.cc
index 47e2536fc9a79e2598b65455a18767bf442dbcd4..b10258af12706efc73a427d05471bdb5b204277b 100644
--- a/test/cctest/test-spaces.cc
+++ b/test/cctest/test-spaces.cc
@@ -408,6 +408,8 @@ TEST(SizeOfFirstPageIsLargeEnough) {
 
   // Freshly initialized VM gets by with one page per space.
   for (int i = FIRST_PAGED_SPACE; i <= LAST_PAGED_SPACE; i++) {
+    // Debug code can be very large, so skip CODE_SPACE if we are generating it.
+    if (i == CODE_SPACE && i::FLAG_debug_code) continue;
     CHECK_EQ(1, isolate->heap()->paged_space(i)->CountTotalPages());
   }
 
@@ -415,6 +417,8 @@ TEST(SizeOfFirstPageIsLargeEnough) {
   HandleScope scope(isolate);
   CompileRun("/*empty*/");
   for (int i = FIRST_PAGED_SPACE; i <= LAST_PAGED_SPACE; i++) {
+    // Debug code can be very large, so skip CODE_SPACE if we are generating it.
+    if (i == CODE_SPACE && i::FLAG_debug_code) continue;
     CHECK_EQ(1, isolate->heap()->paged_space(i)->CountTotalPages());
   }