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[LoopUnroll] Set correct thresholds for new recently enabled unrolling heuristic.

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In r270478, where I enabled the new heuristic I posted testing results,
which I got when explicitly passed the thresholds values via CL options.
However, setting the CL options init-values is not enough to change the
default values of thresholds, so I'm changing them in another place now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271615 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Zolotukhin 2016-06-03 00:16:46 +00:00
parent ae4f064584
commit 3c11b7d257
1 changed files with 2 additions and 2 deletions
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4
lib/Transforms/Scalar/LoopUnrollPass.cpp
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@ -114,8 +114,8 @@ static TargetTransformInfo::UnrollingPreferences gatherUnrollingPreferences(
// Set up the defaults
UP.Threshold = 150;
UP.PercentDynamicCostSavedThreshold = 20;
UP.DynamicCostSavingsDiscount = 2000;
UP.PercentDynamicCostSavedThreshold = 50;
UP.DynamicCostSavingsDiscount = 100;
UP.OptSizeThreshold = 0;
UP.PartialThreshold = UP.Threshold;
UP.PartialOptSizeThreshold = 0;