Add -print-dbginfo pass that prints LLVM IR with comments inserted to show

which source/line a certain BB/instruction comes from, original variable names,
and original (unmangled) C++ name of functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61085 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/LinkAllPasses.h

@@ -126,6 +126,7 @@ namespace {
       (void) llvm::createMergeFunctionsPass();
       (void) llvm::createPrintModulePass(0);
       (void) llvm::createPrintFunctionPass("", 0);
+      (void) llvm::createDbgInfoPrinterPass();
 
       (void)new llvm::IntervalPartition();
       (void)new llvm::FindUsedTypes();