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| author | Nadav Rotem <nrotem@apple.com> | 2013-07-26 23:07:55 +0000 |
|---|---|---|
| committer | Nadav Rotem <nrotem@apple.com> | 2013-07-26 23:07:55 +0000 |
| commit | 67a38a2875f05ea9c219ab73c4398ee675eb4292 (patch) | |
| tree | a5858fa365316a162134620715e4416ef74cb8dc /test/Transforms/SLPVectorizer | |
| parent | a629c3a4f05a8e7976142577872aef95f88c86a0 (diff) | |
| download | llvm-67a38a2875f05ea9c219ab73c4398ee675eb4292.tar.gz llvm-67a38a2875f05ea9c219ab73c4398ee675eb4292.tar.bz2 llvm-67a38a2875f05ea9c219ab73c4398ee675eb4292.tar.xz | |
SLP Vectorier: Don't vectorize really short chains because they are already handled by the SelectionDAG store-vectorizer, which does a better job in deciding when to vectorize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187267 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/SLPVectorizer')
| -rw-r--r-- | test/Transforms/SLPVectorizer/X86/reduction2.ll | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/test/Transforms/SLPVectorizer/X86/reduction2.ll b/test/Transforms/SLPVectorizer/X86/reduction2.ll index 1dc77d2ef5..f21e86c564 100644 --- a/test/Transforms/SLPVectorizer/X86/reduction2.ll +++ b/test/Transforms/SLPVectorizer/X86/reduction2.ll @@ -16,11 +16,13 @@ define double @foo(double* nocapture %D) { %3 = getelementptr inbounds double* %D, i32 %2 %4 = load double* %3, align 4 %A4 = fmul double %4, %4 + %A42 = fmul double %A4, %A4 %5 = or i32 %2, 1 %6 = getelementptr inbounds double* %D, i32 %5 %7 = load double* %6, align 4 %A7 = fmul double %7, %7 - %8 = fadd double %A4, %A7 + %A72 = fmul double %A7, %A7 + %8 = fadd double %A42, %A72 %9 = fadd double %sum.01, %8 %10 = add nsw i32 %i.02, 1 %exitcond = icmp eq i32 %10, 100 |