[llvm-commits] [llvm] r101429 - /llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp

[Bob Wilson]

On Apr 15, 2010, at 5:38 PM, Chris Lattner wrote:

> Author: lattner
> Date: Thu Apr 15 19:38:19 2010
> New Revision: 101429
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=101429&view=rev
> Log:
> improve comments.
> 
> Modified:
>    llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp
> 
> Modified: llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp?rev=101429&r1=101428&r2=101429&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp (original)
> +++ llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp Thu Apr 15 19:38:19 2010
> @@ -148,14 +148,27 @@
> //===----------------------------------------------------------------------===//
> 
> namespace {
> -/// ConvertToScalarInfo - This struct is used by CanConvertToScalar
> +/// ConvertToScalarInfo - This class implements the "Convert To Scalar"
> +/// optimization, which scans the uses of an alloca and determines if it can
> +/// rewrite it in terms of a single new alloca that can be mem2reg'd.
> class ConvertToScalarInfo {
>   /// AllocaSize - The size of the alloca being considered.
>   unsigned AllocaSize;
>   const TargetData &TD;
> 
> +  /// IsNotTrivial - This is set to true if there is somee access to the object

/somee/some

> +  /// which means that mem2reg can't promote it.
>   bool IsNotTrivial;