diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp b/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp index 851e4f768d1..df06c1c6bf7 100644 --- a/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp +++ b/llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp @@ -44,7 +44,11 @@ using namespace llvm; static cl::opt<unsigned> UnrollThreshold("unroll-threshold", cl::Hidden, - cl::desc("The baseline cost threshold for loop unrolling")); + cl::desc("The cost threshold for loop unrolling")); + +static cl::opt<unsigned> UnrollPartialThreshold( + "unroll-partial-threshold", cl::Hidden, + cl::desc("The cost threshold for partial loop unrolling")); static cl::opt<unsigned> UnrollMaxPercentThresholdBoost( "unroll-max-percent-threshold-boost", cl::init(400), cl::Hidden, @@ -127,7 +131,7 @@ static TargetTransformInfo::UnrollingPreferences gatherUnrollingPreferences( UP.Threshold = 150; UP.MaxPercentThresholdBoost = 400; UP.OptSizeThreshold = 0; - UP.PartialThreshold = UP.Threshold; + UP.PartialThreshold = 150; UP.PartialOptSizeThreshold = 0; UP.Count = 0; UP.PeelCount = 0; @@ -153,10 +157,10 @@ static TargetTransformInfo::UnrollingPreferences gatherUnrollingPreferences( } // Apply any user values specified by cl::opt - if (UnrollThreshold.getNumOccurrences() > 0) { + if (UnrollThreshold.getNumOccurrences() > 0) UP.Threshold = UnrollThreshold; - UP.PartialThreshold = UnrollThreshold; - } + if (UnrollPartialThreshold.getNumOccurrences() > 0) + UP.PartialThreshold = UnrollPartialThreshold; if (UnrollMaxPercentThresholdBoost.getNumOccurrences() > 0) UP.MaxPercentThresholdBoost = UnrollMaxPercentThresholdBoost; if (UnrollMaxCount.getNumOccurrences() > 0) |
