[llvm-commits] [llvm] r123973 - /llvm/trunk/lib/Transforms/Scalar/SCCP.cpp

[Chris Lattner]

On Jan 21, 2011, at 12:38 AM, Nick Lewycky wrote:

> Author: nicholas
> Date: Fri Jan 21 02:38:09 2011
> New Revision: 123973
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=123973&view=rev
> Log:
> SCCP doesn't actually preserve the CFG. It will delete and insert terminator
> instructions.

Does this change the output of "opt -O3 -debug-pass=Structure" on some bc file?  Do any extra analyses get run?

-Chris

> 
> Modified:
>    llvm/trunk/lib/Transforms/Scalar/SCCP.cpp
> 
> Modified: llvm/trunk/lib/Transforms/Scalar/SCCP.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/SCCP.cpp?rev=123973&r1=123972&r2=123973&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Transforms/Scalar/SCCP.cpp (original)
> +++ llvm/trunk/lib/Transforms/Scalar/SCCP.cpp Fri Jan 21 02:38:09 2011
> @@ -1606,10 +1606,6 @@
>     // algorithm, and return true if the function was modified.
>     //
>     bool runOnFunction(Function &F);
> -
> -    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
> -      AU.setPreservesCFG();
> -    }
>   };
> } // end anonymous namespace
> 
> 
> 
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