Run the simplify CFG pass after instcombine which has the effect of deleting

ALL of the global ctor/dtor stuff if it is not used!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6916 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/gccld/gccld.cpp b/tools/gccld/gccld.cpp
index 283118d2940e411ce9871c66d3ade8062ceb140a..5b56bd830d3f47327f8715b6ad5ee1872d02aa37 100644 (file)
--- a/tools/gccld/gccld.cpp
+++ b/tools/gccld/gccld.cpp
@@ -405,6 +405,10 @@ int main(int argc, char **argv) {
   //
   Passes.add(createInstructionCombiningPass());
 
+  // Delete basic blocks, which optimization passes may have killed...
+  //
+  Passes.add(createCFGSimplificationPass());
+
   // Now that we have optimized the program, discard unreachable functions...
   //
   Passes.add(createGlobalDCEPass());