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LoopVectorizer cost model. Honor the user command line flag that selects the vectorization factor even if the target machine does not have any vector registers.

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llvm-svn: 172544
This commit is contained in:
Nadav Rotem 2013-01-15 18:25:16 +00:00
parent 04c65cf0ca
commit 3fc70ae776
1 changed files with 1 additions and 1 deletions
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2
lib/Transforms/Vectorize/LoopVectorize.cpp
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@ -2633,7 +2633,7 @@ LoopVectorizationCostModel::selectVectorizationFactor(bool OptForSize,
if (MaxVectorSize == 0) {
DEBUG(dbgs() << "LV: The target has no vector registers.\n");
return 1;
MaxVectorSize = 1;
}
assert(MaxVectorSize <= 32 && "Did not expect to pack so many elements"