[llvm-commits] [PATCH 1/2] Region: Check the exit region before use it when expanding a region.

[ether zhhb]

>
> can you use an assert() here?
sure

---
 lib/Analysis/RegionInfo.cpp |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/lib/Analysis/RegionInfo.cpp b/lib/Analysis/RegionInfo.cpp
index e2f6a8b..a374ef9 100644
--- a/lib/Analysis/RegionInfo.cpp
+++ b/lib/Analysis/RegionInfo.cpp
@@ -394,6 +394,7 @@ Region *Region::getExpandedRegion() const {

   Region *R = RI->getRegionFor(exit);

+  assert(R && "Can not find a region for exit!");
   if (R->getEntry() != exit) {
     if (exit->getTerminator()->getNumSuccessors() == 1)
       return new Region(getEntry(), *succ_begin(exit), RI, DT);
-- 
1.7.3.3
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