diff options
Diffstat (limited to 'lib/Transforms/IPO/GlobalOpt.cpp')
-rw-r--r-- | lib/Transforms/IPO/GlobalOpt.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp index 2b9d6670ca..b035a821b4 100644 --- a/lib/Transforms/IPO/GlobalOpt.cpp +++ b/lib/Transforms/IPO/GlobalOpt.cpp @@ -470,8 +470,9 @@ static bool CleanupPointerRootUsers(GlobalVariable *GV, static bool CleanupConstantGlobalUsers(Value *V, Constant *Init, DataLayout *TD, TargetLibraryInfo *TLI) { bool Changed = false; - for (Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E;) { - User *U = *UI++; + SmallVector<User*, 8> WorkList(V->use_begin(), V->use_end()); + while (!WorkList.empty()) { + User *U = WorkList.pop_back_val(); if (LoadInst *LI = dyn_cast<LoadInst>(U)) { if (Init) { @@ -534,7 +535,6 @@ static bool CleanupConstantGlobalUsers(Value *V, Constant *Init, // us, and if they are all dead, nuke them without remorse. if (SafeToDestroyConstant(C)) { C->destroyConstant(); - // This could have invalidated UI, start over from scratch. CleanupConstantGlobalUsers(V, Init, TD, TLI); return true; } |