diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Analysis/LazyCallGraph.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/LazyCallGraph.cpp b/llvm/lib/Analysis/LazyCallGraph.cpp index 726f52a9585..797fcf51642 100644 --- a/llvm/lib/Analysis/LazyCallGraph.cpp +++ b/llvm/lib/Analysis/LazyCallGraph.cpp @@ -172,6 +172,19 @@ LazyCallGraph::LazyCallGraph(Module &M, TargetLibraryInfo &TLI) { addEdge(EntryEdges.Edges, EntryEdges.EdgeIndexMap, get(F), Edge::Ref); } + // Externally visible aliases of internal functions are also viable entry + // edges to the module. + for (auto &A : M.aliases()) { + if (A.hasLocalLinkage()) + continue; + if (Function* F = dyn_cast<Function>(A.getAliasee())) { + LLVM_DEBUG(dbgs() << " Adding '" << F->getName() + << "' with alias '" << A.getName() + << "' to entry set of the graph.\n"); + addEdge(EntryEdges.Edges, EntryEdges.EdgeIndexMap, get(*F), Edge::Ref); + } + } + // Now add entry nodes for functions reachable via initializers to globals. SmallVector<Constant *, 16> Worklist; SmallPtrSet<Constant *, 16> Visited; |

