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| author | Duncan Sands <baldrick@free.fr> | 2009-01-05 20:47:56 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2009-01-05 20:47:56 +0000 |
| commit | 52e5deece5b99ff5d2ca5547c4c894397da1be41 (patch) | |
| tree | 38994b4aae18db8eb72218e8abfeb38216d46ac3 /llvm/lib/Transforms/IPO/GlobalDCE.cpp | |
| parent | 821d13cf789ddfb25cf942155670bb0fd23cce9c (diff) | |
| download | bcm5719-llvm-52e5deece5b99ff5d2ca5547c4c894397da1be41.tar.gz bcm5719-llvm-52e5deece5b99ff5d2ca5547c4c894397da1be41.zip | |
Not having an aliasee is a theoretical possibility.
llvm-svn: 61745
Diffstat (limited to 'llvm/lib/Transforms/IPO/GlobalDCE.cpp')
| -rw-r--r-- | llvm/lib/Transforms/IPO/GlobalDCE.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/IPO/GlobalDCE.cpp b/llvm/lib/Transforms/IPO/GlobalDCE.cpp index a9c9ec0fd84..654a5095d06 100644 --- a/llvm/lib/Transforms/IPO/GlobalDCE.cpp +++ b/llvm/lib/Transforms/IPO/GlobalDCE.cpp @@ -161,7 +161,8 @@ void GlobalDCE::GlobalIsNeeded(GlobalValue *G) { MarkUsedGlobalsAsNeeded(GV->getInitializer()); } else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(G)) { // The target of a global alias is needed. - MarkUsedGlobalsAsNeeded(GA->getAliasee()); + if (Constant *Aliasee = GA->getAliasee()) + MarkUsedGlobalsAsNeeded(Aliasee); } else { // Otherwise this must be a function object. We have to scan the body of // the function looking for constants and global values which are used as |
