diff --git a/tools/gccas/gccas.cpp b/tools/gccas/gccas.cpp
index a292a71afed..5d14e3c4a00 100644
--- a/tools/gccas/gccas.cpp
+++ b/tools/gccas/gccas.cpp
@@ -83,6 +83,7 @@ int main(int argc, char **argv) {
     Passes.add(createRaisePointerReferencesPass()); // Eliminate casts
     Passes.add(createPromoteMemoryToRegister());    // Promote alloca's to regs
     Passes.add(createInstructionCombiningPass());   // Combine silly seq's
+    Passes.add(createDeadInstEliminationPass());    // Kill InstCombine remnants
     Passes.add(createSCCPPass());                   // Constant prop with SCCP
     Passes.add(createGCSEPass());                   // Remove common subexprs
     Passes.add(createDeadCodeEliminationPass());    // Remove Dead code/vars