[Openmp-commits] [openmp] r228736 - Fixed memory corruption problem.

[Andrey Churbanov]

Author: achurbanov
Date: Tue Feb 10 14:10:21 2015
New Revision: 228736

URL: http://llvm.org/viewvc/llvm-project?rev=228736&view=rev
Log:
Fixed memory corruption problem.

Modified:
    openmp/trunk/runtime/src/kmp_affinity.cpp

Modified: openmp/trunk/runtime/src/kmp_affinity.cpp
URL: http://llvm.org/viewvc/llvm-project/openmp/trunk/runtime/src/kmp_affinity.cpp?rev=228736&r1=228735&r2=228736&view=diff
==============================================================================
--- openmp/trunk/runtime/src/kmp_affinity.cpp (original)
+++ openmp/trunk/runtime/src/kmp_affinity.cpp Tue Feb 10 14:10:21 2015
@@ -350,6 +350,10 @@ public:
     hierarchy_info() : depth(1), uninitialized(true) {}
     void init(AddrUnsPair *adr2os, int num_addrs)
     {
+        /* Added explicit initialization of the depth here to prevent usage of dirty value
+           observed when static library is re-initialized multiple times (e.g. when
+           non-OpenMP thread repeatedly launches/joins thread that uses OpenMP). */
+        depth = 1;
         uninitialized = false;
         for (kmp_uint32 i=0; i<maxLevels; ++i) { // init numPerLevel[*] to 1 item per level
             numPerLevel[i] = 1;