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| author | Renato Golin <renato.golin@linaro.org> | 2013-10-24 14:50:51 +0000 |
|---|---|---|
| committer | Renato Golin <renato.golin@linaro.org> | 2013-10-24 14:50:51 +0000 |
| commit | d6aa89eca5be76dece4b4cd44359e8577e587dff (patch) | |
| tree | 4f1081b8bcd82de6aae2a5f3740c13188112de24 /lib/Transforms/Vectorize/LoopVectorize.cpp | |
| parent | 43752f2d4f29ebb40318e8da05633c994b694f46 (diff) | |
| download | llvm-d6aa89eca5be76dece4b4cd44359e8577e587dff.tar.gz llvm-d6aa89eca5be76dece4b4cd44359e8577e587dff.tar.bz2 llvm-d6aa89eca5be76dece4b4cd44359e8577e587dff.tar.xz | |
Mark vector loops as already vectorized
Make sure we mark all loops (scalar and vector) when vectorizing,
so that we don't try to vectorize them anymore. Also, set unroll
to 1, since this is what we check for on early exit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193349 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Vectorize/LoopVectorize.cpp')
| -rw-r--r-- | lib/Transforms/Vectorize/LoopVectorize.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Vectorize/LoopVectorize.cpp b/lib/Transforms/Vectorize/LoopVectorize.cpp index 72ddb749d6..317c1ffd85 100644 --- a/lib/Transforms/Vectorize/LoopVectorize.cpp +++ b/lib/Transforms/Vectorize/LoopVectorize.cpp @@ -801,6 +801,7 @@ struct LoopVectorizeHints { Vals.push_back(LoopID->getOperand(i)); Vals.push_back(createHint(Context, Twine(Prefix(), "width").str(), Width)); + Vals.push_back(createHint(Context, Twine(Prefix(), "unroll").str(), 1)); MDNode *NewLoopID = MDNode::get(Context, Vals); // Set operand 0 to refer to the loop id itself. @@ -1785,6 +1786,9 @@ InnerLoopVectorizer::createEmptyLoop(LoopVectorizationLegality *Legal) { LoopExitBlock = ExitBlock; LoopVectorBody = VecBody; LoopScalarBody = OldBasicBlock; + + LoopVectorizeHints Hints(Lp, true); + Hints.setAlreadyVectorized(Lp); } /// This function returns the identity element (or neutral element) for |