[llvm-dev] On-the-fly passes

[David Greene via llvm-dev]

Philip Pfaffe via llvm-dev <llvm-dev at lists.llvm.org> writes:

> What is the behavior that you are not expecting?

Sorry, I hit send too quickly.  I posted a later message with all the
details.

                            -David

> Cheers,
> Philip
>
> On Tue, Mar 26, 2019 at 9:26 PM David Greene via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
>  I'm seeing some very unexpected behavior in a ModulePass I've created.
>  To support both the legacy and new pass managers, I've abstracted away
>  the code to get the passes it depends on:
>
>  bool MyPass::runOnModule(Module &M) override {
>    auto DominatorGetter = [this] (Function &F) -> DominatorTree & {
>      return this->getAnalysis<DominatorTreeWrapperPass>(F).getDomTree();
>    };
>
>        auto PostDominatorGetter = [this] (Function &F) -> PostDominatorTree & {
>          return this->
>          getAnalysis<PostDominatorTreeWrapperPass>(F).getPostDomTree();
>        };
>
>        auto LoopInfoGetter = [this] (Function &F) -> LoopInfo & {
>          return this->getAnalysis<LoopInfoWrapperPass>(F).getLoopInfo();
>        };
>
>        auto SCEVGetter = [this] (Function &F) -> ScalarEvolution & {
>          return this->getAnalysis<ScalarEvolutionWrapperPass>(F).getSE();
>        };
>
>        auto AssumptionCacheGetter = [this] (Function &F) ->
>          AssumptionCache & {
>          return
>          this->getAnalysis<AssumptionCacheTracker>().getAssumptionCache(F);
>        };
>
>        auto OREGetter = [this] (Function &F) -> OptimizationRemarkEmitter & {
>          return this->
>          getAnalysis<OptimizationRemarkEmitterWrapperPass>(F).getORE();
>        };
>  }
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