diff options
Diffstat (limited to 'contrib/llvm-project/llvm/lib/CodeGen/GlobalMerge.cpp')
| -rw-r--r-- | contrib/llvm-project/llvm/lib/CodeGen/GlobalMerge.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/CodeGen/GlobalMerge.cpp b/contrib/llvm-project/llvm/lib/CodeGen/GlobalMerge.cpp index bbd9006a5d8c..f5833d3b9086 100644 --- a/contrib/llvm-project/llvm/lib/CodeGen/GlobalMerge.cpp +++ b/contrib/llvm-project/llvm/lib/CodeGen/GlobalMerge.cpp @@ -592,6 +592,13 @@ void GlobalMerge::setMustKeepGlobalVariables(Module &M) { if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(U->stripPointerCasts())) MustKeepGlobalVariables.insert(GV); + else if (const ConstantArray *CA = dyn_cast<ConstantArray>(U->stripPointerCasts())) { + for (const Use &Elt : CA->operands()) { + if (const GlobalVariable *GV = + dyn_cast<GlobalVariable>(Elt->stripPointerCasts())) + MustKeepGlobalVariables.insert(GV); + } + } } } } @@ -609,6 +616,13 @@ bool GlobalMerge::doInitialization(Module &M) { bool Changed = false; setMustKeepGlobalVariables(M); + LLVM_DEBUG({ + dbgs() << "Number of GV that must be kept: " << + MustKeepGlobalVariables.size() << "\n"; + for (auto KeptGV = MustKeepGlobalVariables.begin(); + KeptGV != MustKeepGlobalVariables.end(); KeptGV++) + dbgs() << "Kept: " << **KeptGV << "\n"; + }); // Grab all non-const globals. for (auto &GV : M.globals()) { // Merge is safe for "normal" internal or external globals only |