void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) {
const char *Name = isDtors ? "llvm.global_dtors" : "llvm.global_ctors";
GlobalVariable *GV = CurMod.getNamedGlobal(Name);
- if (!GV || GV->isExternal() || !GV->hasInternalLinkage()) return;
+
+ // If this global has internal linkage, or if it has a use, then it must be
+ // an old-style (llvmgcc3) static ctor with __main linked in and in use. If
+ // this is the case, don't execute any of the global ctors, __main will do it.
+ if (!GV || GV->isExternal() || GV->hasInternalLinkage()) return;
// Should be an array of '{ int, void ()* }' structs. The first value is the
// init priority, which we ignore.