6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-14 14:24:05 +00:00
Code Issues Projects Releases Wiki Activity

SLPVectorizer: Try vectorizing 'splat' stores

Browse Source 
Vectorize sequential stores of a broadcasted value.
5% on eon.

radar://16124699

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202067 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Arnold Schwaighofer
2014-02-24 19:52:29 +00:00
parent b55c398992
commit 68085c7bef
2 changed files with 23 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
lib/Transforms/Vectorize/SLPVectorizer.cpp
View File

@ -1101,11 +1101,15 @@ bool BoUpSLP::isFullyVectorizableTinyTree() {
if (VectorizableTree.size() != 2)
return false;
// Gathering cost would be too much for tiny trees.
if (VectorizableTree[0].NeedToGather || VectorizableTree[1].NeedToGather)
return false;
// Handle splat stores.
if (!VectorizableTree[0].NeedToGather && isSplat(VectorizableTree[1].Scalars))
return true;
return true;
// Gathering cost would be too much for tiny trees.
if (VectorizableTree[0].NeedToGather || VectorizableTree[1].NeedToGather)
return false;
return true;
}
int BoUpSLP::getTreeCost() {