fix a bug in closure_sizeW_()

diff --git a/ghc/includes/Storage.h b/ghc/includes/Storage.h
index 8cfd511..c339c4e 100644 (file)
--- a/ghc/includes/Storage.h
+++ b/ghc/includes/Storage.h
@@ -375,6 +375,8 @@ closure_sizeW_ (StgClosure *p, StgInfoTable *info)
     case FUN_2_0:
     case CONSTR_2_0:
        return sizeofW(StgHeader) + 2;
+    case THUNK:
+       return thunk_sizeW_fromITBL(info);
     case THUNK_SELECTOR:
        return THUNK_SELECTOR_sizeW();
     case AP_STACK:
@@ -411,6 +413,7 @@ closure_sizeW_ (StgClosure *p, StgInfoTable *info)
     }
 }
 
+// The definitive way to find the size, in words, of a heap-allocated closure
 STATIC_INLINE nat
 closure_sizeW (StgClosure *p)
 {