diff options
| -rw-r--r-- | lib/Transforms/IPO/Internalize.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Transforms/IPO/Internalize.cpp b/lib/Transforms/IPO/Internalize.cpp index ec28ecf81d..0ed76aba62 100644 --- a/lib/Transforms/IPO/Internalize.cpp +++ b/lib/Transforms/IPO/Internalize.cpp @@ -87,6 +87,14 @@ namespace { for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I) if (!I->isExternal() && !I->hasInternalLinkage() && !ExternalNames.count(I->getName())) { + // Special case handling of the global ctor and dtor list. When we + // internalize it, we mark it constant, which allows elimination of + // the list if it's empty. + // + if (I->hasAppendingLinkage() && (I->getName() == "llvm.global_ctors"|| + I->getName() == "llvm.global_dtors")) + I->setConstant(true); + I->setLinkage(GlobalValue::InternalLinkage); Changed = true; ++NumGlobals; |