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| author | Dan Gohman <gohman@apple.com> | 2010-04-23 01:51:29 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-04-23 01:51:29 +0000 |
| commit | c6863989fc268ee0ff1469e4856e2e9404e67336 (patch) | |
| tree | 4056639933e825605427d5efc330b2b6a60e507e /lib/Analysis/ScalarEvolution.cpp | |
| parent | 314bf7cbbf7e27b47faa4e78d321ea16057ae6a0 (diff) | |
When it doesn't matter whether zero or sign extension is used,
use ScalarEvolutions "any" extend function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102156 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/ScalarEvolution.cpp')
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index f540bcbdcd..0daf39383e 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -1355,9 +1355,7 @@ const SCEV *ScalarEvolution::getAddExpr(SmallVectorImpl<const SCEV *> &Ops, } LargeOps.push_back(T->getOperand()); } else if (const SCEVConstant *C = dyn_cast<SCEVConstant>(Ops[i])) { - // This could be either sign or zero extension, but sign extension - // is much more likely to be foldable here. - LargeOps.push_back(getSignExtendExpr(C, SrcType)); + LargeOps.push_back(getAnyExtendExpr(C, SrcType)); } else if (const SCEVMulExpr *M = dyn_cast<SCEVMulExpr>(Ops[i])) { SmallVector<const SCEV *, 8> LargeMulOps; for (unsigned j = 0, f = M->getNumOperands(); j != f && Ok; ++j) { @@ -1370,9 +1368,7 @@ const SCEV *ScalarEvolution::getAddExpr(SmallVectorImpl<const SCEV *> &Ops, LargeMulOps.push_back(T->getOperand()); } else if (const SCEVConstant *C = dyn_cast<SCEVConstant>(M->getOperand(j))) { - // This could be either sign or zero extension, but sign extension - // is much more likely to be foldable here. - LargeMulOps.push_back(getSignExtendExpr(C, SrcType)); + LargeMulOps.push_back(getAnyExtendExpr(C, SrcType)); } else { Ok = false; break; |