Be careful not to make "external" function internal
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2363 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/Internalize.cpp b/lib/Transforms/IPO/Internalize.cpp
index aadde7c..8bb1a9c 100644
--- a/lib/Transforms/IPO/Internalize.cpp
+++ b/lib/Transforms/IPO/Internalize.cpp
@@ -15,7 +15,7 @@
virtual bool run(Module *M) {
bool FoundMain = false; // Look for a function named main...
for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
- if ((*I)->getName() == "main") {
+ if ((*I)->getName() == "main" && !(*I)->isExternal()) {
FoundMain = true;
break;
}
@@ -26,7 +26,8 @@
// Found a main function, mark all functions not named main as internal.
for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
- if ((*I)->getName() != "main") // Leave the main function external
+ if ((*I)->getName() != "main" && // Leave the main function external
+ !(*I)->isExternal()) // Function must be defined here
(*I)->setInternalLinkage(Changed = true);
return Changed;