diff options
Diffstat (limited to 'include/llvm/Analysis')
| -rw-r--r-- | include/llvm/Analysis/TargetTransformInfo.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/llvm/Analysis/TargetTransformInfo.h b/include/llvm/Analysis/TargetTransformInfo.h index 06810a7..908612c 100644 --- a/include/llvm/Analysis/TargetTransformInfo.h +++ b/include/llvm/Analysis/TargetTransformInfo.h @@ -191,6 +191,20 @@ public: /// incurs significant execution cost. virtual bool isLoweredToCall(const Function *F) const; + /// Parameters that control the generic loop unrolling transformation. + struct UnrollingPreferences { + unsigned Threshold; ///< The cost threshold for the unrolled loop. + unsigned OptSizeThreshold; ///< The cost threshold for the unrolled loop + ///< when optimizing for size. + bool Partial; ///< Allow partial loop unrolling. + bool Runtime; ///< Perform runtime unrolling. + }; + + /// \brief Get target-customized preferences for the generic loop unrolling + /// transformation. Returns true if the UnrollingPreferences struct has been + /// initialized. + virtual bool getUnrollingPreferences(UnrollingPreferences &UP) const; + /// @} /// \name Scalar Target Information |