[llvm] r225953 - SelectionDAG: add a -filter-view-dags option to llc

[Daniel Sanders]

> ==========================================================
> ====================
> --- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp (original)
> +++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp Wed Jan
> 14 00:03:18 2015
> @@ -652,6 +656,12 @@ void SelectionDAGISel::CodeGenAndEmitDAG
>    std::string BlockName;
>    int BlockNumber = -1;
>    (void)BlockNumber;
> +  bool MatchFilterBB = false; (void)MatchFilterBB;
> +#ifndef NDEBUG
> +  MatchFilterBB = (!FilterDAGBasicBlockName.empty() &&
> +                   FilterDAGBasicBlockName ==
> +                       FuncInfo->MBB->getBasicBlock()->getName().str());
> +#endif
>  #ifdef NDEBUG
>    if (ViewDAGCombine1 || ViewLegalizeTypesDAGs || ViewLegalizeDAGs ||
>        ViewDAGCombine2 || ViewDAGCombineLT || ViewISelDAGs ||
> ViewSchedDAGs ||

Shouldn't the MatchFilterBB line be:
	MatchFilterBB = (FilterDAGBasicBlockName.empty() || FilterDAGBasicBlockName == FuncInfo->MBB->getBasicBlock()->getName().str());
At the moment, using -view-legalize-types-dags by itself does nothing.