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[LoopUnroll] Add a cl::opt to force peeling, for testing purposes.

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Will be used to test the patch proposed in D37153.

llvm-svn: 311915
This commit is contained in:
Davide Italiano 2017-08-28 19:50:55 +00:00
parent e9d5200366
commit f2e85cb73c
1 changed files with 6 additions and 0 deletions
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6
lib/Transforms/Scalar/LoopUnrollPass.cpp
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@ -80,6 +80,10 @@ static cl::opt<unsigned> UnrollFullMaxCount(
cl::desc(
"Set the max unroll count for full unrolling, for testing purposes"));
static cl::opt<unsigned> UnrollPeelCount(
"unroll-peel-count", cl::Hidden,
cl::desc("Set the unroll peeling count, for testing purposes"));
static cl::opt<bool>
UnrollAllowPartial("unroll-allow-partial", cl::Hidden,
cl::desc("Allows loops to be partially unrolled until "
@ -183,6 +187,8 @@ static TargetTransformInfo::UnrollingPreferences gatherUnrollingPreferences(
UP.MaxCount = UnrollMaxCount;
if (UnrollFullMaxCount.getNumOccurrences() > 0)
UP.FullUnrollMaxCount = UnrollFullMaxCount;
if (UnrollPeelCount.getNumOccurrences() > 0)
UP.PeelCount = UnrollPeelCount;
if (UnrollAllowPartial.getNumOccurrences() > 0)
UP.Partial = UnrollAllowPartial;
if (UnrollAllowRemainder.getNumOccurrences() > 0)