Move only unused declaration, the rest will be moved by Linker.

ispc · Dec 25, 2015 · b67d7f0 · b67d7f0
1 parent 5ac46e5
commit b67d7f0
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/builtins.cpp b/builtins.cpp
@@ -906,6 +906,9 @@ AddBitcodeToModule(const unsigned char *bitcode, int length,
         // This trick should be legal, as both modules use the same LLVMContext.
         for (llvm::Function& f : *bcModule) {
           if (f.isDeclaration()) {
+            // Declarations with uses will be moved by Linker.
+            if (f.getNumUses() > 0)
+              continue;
             module->getOrInsertFunction(f.getName(), f.getFunctionType(),
                 f.getAttributes());
           }