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[SLP] Make RecursionMaxDepth a command line option (NFC) 

llvm-svn: 278343
This commit is contained in:
Matthew Simpson 2016-08-11 15:28:45 +00:00
parent 38ae83de38
commit 3f69195b9e
1 changed files with 3 additions and 2 deletions
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5
llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
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@ -82,8 +82,9 @@ static cl::opt<int> MinVectorRegSizeOption(
"slp-min-reg-size", cl::init(128), cl::Hidden, "slp-min-reg-size", cl::init(128), cl::Hidden,
cl::desc("Attempt to vectorize for this register size in bits")); cl::desc("Attempt to vectorize for this register size in bits"));
// FIXME: Set this via cl::opt to allow overriding. static cl::opt<unsigned> RecursionMaxDepth(
static const unsigned RecursionMaxDepth = 12; "slp-recursion-max-depth", cl::init(12), cl::Hidden,
cl::desc("Limit the recursion depth when building a vectorizable tree"));
// Limit the number of alias checks. The limit is chosen so that // Limit the number of alias checks. The limit is chosen so that
// it has no negative effect on the llvm benchmarks. // it has no negative effect on the llvm benchmarks.