Improve the handling of available_externally and llvm.global_ctors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132775 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/ExtractGV.cpp b/lib/Transforms/IPO/ExtractGV.cpp
index 9d432de..d9911bf 100644
--- a/lib/Transforms/IPO/ExtractGV.cpp
+++ b/lib/Transforms/IPO/ExtractGV.cpp
@@ -51,20 +51,32 @@
// Visit the GlobalVariables.
for (Module::global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I) {
+ if (deleteStuff == (bool)Named.count(I) && !I->isDeclaration()) {
+ I->setInitializer(0);
+ } else {
+ if (I->hasAvailableExternallyLinkage())
+ continue;
+ if (I->getName() == "llvm.global_ctors")
+ continue;
+ }
+
if (I->hasLocalLinkage())
I->setVisibility(GlobalValue::HiddenVisibility);
I->setLinkage(GlobalValue::ExternalLinkage);
- if (deleteStuff == (bool)Named.count(I) && !I->isDeclaration())
- I->setInitializer(0);
}
// Visit the Functions.
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
+ if (deleteStuff == (bool)Named.count(I) && !I->isDeclaration()) {
+ I->deleteBody();
+ } else {
+ if (I->hasAvailableExternallyLinkage())
+ continue;
+ }
+
if (I->hasLocalLinkage())
I->setVisibility(GlobalValue::HiddenVisibility);
I->setLinkage(GlobalValue::ExternalLinkage);
- if (deleteStuff == (bool)Named.count(I) && !I->isDeclaration())
- I->deleteBody();
}
return true;