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| author | Dan Gohman <gohman@apple.com> | 2010-06-17 23:34:09 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-06-17 23:34:09 +0000 |
| commit | 27ed6a41ce4be84dfc812cb88e7bc56c39c15f4d (patch) | |
| tree | d371834f6dfb9a43214597716acefce8d48c87f1 /lib/Analysis/ScalarEvolution.cpp | |
| parent | 597ec8ed51d36dc6c19fe75e5c3ae675c510cfe8 (diff) | |
Simplify this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106254 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/ScalarEvolution.cpp')
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index 2fd7d1dbc0..0d0b9316a3 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -1747,17 +1747,9 @@ const SCEV *ScalarEvolution::getMulExpr(SmallVectorImpl<const SCEV *> &Ops, // NLI * LI * {Start,+,Step} --> NLI * {LI*Start,+,LI*Step} SmallVector<const SCEV *, 4> NewOps; NewOps.reserve(AddRec->getNumOperands()); - if (LIOps.size() == 1) { - const SCEV *Scale = LIOps[0]; - for (unsigned i = 0, e = AddRec->getNumOperands(); i != e; ++i) - NewOps.push_back(getMulExpr(Scale, AddRec->getOperand(i))); - } else { - for (unsigned i = 0, e = AddRec->getNumOperands(); i != e; ++i) { - SmallVector<const SCEV *, 4> MulOps(LIOps.begin(), LIOps.end()); - MulOps.push_back(AddRec->getOperand(i)); - NewOps.push_back(getMulExpr(MulOps)); - } - } + const SCEV *Scale = getMulExpr(LIOps); + for (unsigned i = 0, e = AddRec->getNumOperands(); i != e; ++i) + NewOps.push_back(getMulExpr(Scale, AddRec->getOperand(i))); // It's tempting to propagate the NSW flag here, but nsw multiplication // is not associative so this isn't necessarily safe. |