Fix --max_old_space_size=4096 integer overflow.

BUG=v8:3857 LOG=N Review URL: https://codereview.chromium.org/897543002 Cr-Commit-Position: refs/heads/master@{#26510}
crosswalk-project · Feb 9, 2015 · a02d97e · a02d97e
1 parent 22dd076
commit a02d97e
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
@@ -5133,21 +5133,22 @@ bool Heap::ConfigureHeap(int max_semi_space_size, int max_old_space_size,
     max_semi_space_size_ = max_semi_space_size * MB;
   }
   if (max_old_space_size > 0) {
-    max_old_generation_size_ = max_old_space_size * MB;
+    max_old_generation_size_ = static_cast<intptr_t>(max_old_space_size) * MB;
   }
   if (max_executable_size > 0) {
-    max_executable_size_ = max_executable_size * MB;
+    max_executable_size_ = static_cast<intptr_t>(max_executable_size) * MB;
   }
 
   // If max space size flags are specified overwrite the configuration.
   if (FLAG_max_semi_space_size > 0) {
     max_semi_space_size_ = FLAG_max_semi_space_size * MB;
   }
   if (FLAG_max_old_space_size > 0) {
-    max_old_generation_size_ = FLAG_max_old_space_size * MB;
+    max_old_generation_size_ =
+        static_cast<intptr_t>(FLAG_max_old_space_size) * MB;
   }
   if (FLAG_max_executable_size > 0) {
-    max_executable_size_ = FLAG_max_executable_size * MB;
+    max_executable_size_ = static_cast<intptr_t>(FLAG_max_executable_size) * MB;
   }
 
   if (FLAG_stress_compaction) {