diff options
| author | Chris Lattner <sabre@nondot.org> | 2007-04-14 18:06:52 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-04-14 18:06:52 +0000 |
| commit | 6f58839b205d08464517c48e30fb77715ba059db (patch) | |
| tree | 3cad2de8f456ac5924700009edd76c10170e67d1 /llvm | |
| parent | 64f7a5ea866dab82b54f04732c243ccf5d6f532b (diff) | |
| download | bcm5719-llvm-6f58839b205d08464517c48e30fb77715ba059db.tar.gz bcm5719-llvm-6f58839b205d08464517c48e30fb77715ba059db.zip | |
avoid iterator invalidation.
llvm-svn: 36002
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Transforms/IPO/ConstantMerge.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/IPO/ConstantMerge.cpp b/llvm/lib/Transforms/IPO/ConstantMerge.cpp index 0f949a4743e..400b5e20312 100644 --- a/llvm/lib/Transforms/IPO/ConstantMerge.cpp +++ b/llvm/lib/Transforms/IPO/ConstantMerge.cpp @@ -60,8 +60,10 @@ bool ConstantMerge::runOnModule(Module &M) { // because doing so may cause initializers of other globals to be rewritten, // invalidating the Constant* pointers in CMap. // - for (Module::global_iterator GV = M.global_begin(), E = M.global_end(); - GV != E; ++GV) { + for (Module::global_iterator GVI = M.global_begin(), E = M.global_end(); + GVI != E; ) { + GlobalVariable *GV = GVI++; + // If this GV is dead, remove it. GV->removeDeadConstantUsers(); if (GV->use_empty() && GV->hasInternalLinkage()) { |
