GCC doesn't understand that OrigAliasResult having a value is correla…

…ted with

ArePhisAssumedNoAlias, and warns that OrigAliasResult may be used uninitialized.
Pacify GCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164229 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/BasicAliasAnalysis.cpp

@@ -1086,7 +1086,7 @@ BasicAliasAnalysis::aliasPHI(const PHINode *PN, uint64_t PNSize,
       // We assume for the recursion that the the phis (ptr_phi, ptr2_phi) do
       // not alias each other.
       bool ArePhisAssumedNoAlias = false;
-      AliasResult OrigAliasResult;
+      AliasResult OrigAliasResult = NoAlias;
       if (Alias == NoAlias) {
         // Pretend the phis do not alias.
         assert(AliasCache.count(Locs) &&