Do not leak memory for passes when using -stopAfterNPasses or -stopraise

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3371 91177308-0d34-0410-b5e6-96231b3b80d8

tools/gccas/gccas.cpp

@@ -58,6 +58,8 @@ static inline void addPass(PassManager &PM, Pass *P) {
 
     // Keep track of how many passes we made for -stopAfterNPasses
     ++NumPassesCreated;
+  } else {
+    delete P;             // We don't want this pass to run, just delete it now
   }
 }