[llvm] 0cee1bf - [SLP] remove redundant size check; NFC
Sanjay Patel via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 16 05:27:26 PDT 2020
Author: Sanjay Patel
Date: 2020-09-16T08:11:19-04:00
New Revision: 0cee1bf5d17dd424c569df7e2604be10906bd515
URL: https://github.com/llvm/llvm-project/commit/0cee1bf5d17dd424c569df7e2604be10906bd515
DIFF: https://github.com/llvm/llvm-project/commit/0cee1bf5d17dd424c569df7e2604be10906bd515.diff
LOG: [SLP] remove redundant size check; NFC
We bail out on small array size anyway.
Added:
Modified:
llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 62269d2e7b9e7..0fc5d1a810b50 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -6796,14 +6796,10 @@ class HorizontalReduction {
return true;
}
- /// Attempt to vectorize the tree found by
- /// matchAssociativeReduction.
+ /// Attempt to vectorize the tree found by matchAssociativeReduction.
bool tryToReduce(BoUpSLP &V, TargetTransformInfo *TTI) {
- if (ReducedVals.empty())
- return false;
-
- // If there is a sufficient number of reduction values, reduce
- // to a nearby power-of-2. Can safely generate oversized
+ // If there are a sufficient number of reduction values, reduce
+ // to a nearby power-of-2. We can safely generate oversized
// vectors and rely on the backend to split them to legal sizes.
unsigned NumReducedVals = ReducedVals.size();
if (NumReducedVals < 4)
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