Run GlobalDCE before deadtypeelim so that we do not retain types for global
variables that are obviously dead. The most common case is %FILE
llvm-svn: 3370
diff --git a/llvm/tools/gccas/gccas.cpp b/llvm/tools/gccas/gccas.cpp
index 13a4a41..215f5e9 100644
--- a/llvm/tools/gccas/gccas.cpp
+++ b/llvm/tools/gccas/gccas.cpp
@@ -66,6 +66,7 @@
if (Verify) PM.add(createVerifierPass());
addPass(PM, createFunctionResolvingPass()); // Resolve (...) functions
+ addPass(PM, createGlobalDCEPass()); // Kill unused uinit g-vars
addPass(PM, createDeadTypeEliminationPass()); // Eliminate dead types
addPass(PM, createConstantMergePass()); // Merge dup global constants
addPass(PM, createDeadInstEliminationPass()); // Remove Dead code/vars