diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Analysis/ScalarEvolution.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp index 9fa0de1aff8..8c6ddffb87b 100644 --- a/llvm/lib/Analysis/ScalarEvolution.cpp +++ b/llvm/lib/Analysis/ScalarEvolution.cpp @@ -121,6 +121,11 @@ static cl::opt<bool> cl::desc("Verify no dangling value in ScalarEvolution's " "ExprValueMap (slow)")); +static cl::opt<unsigned> MulOpsInlineThreshold( + "scev-mulops-inline-threshold", cl::Hidden, + cl::desc("Threshold for inlining multiplication operands into a SCEV"), + cl::init(1000)); + //===----------------------------------------------------------------------===// // SCEV class definitions //===----------------------------------------------------------------------===// @@ -2516,6 +2521,8 @@ const SCEV *ScalarEvolution::getMulExpr(SmallVectorImpl<const SCEV *> &Ops, if (Idx < Ops.size()) { bool DeletedMul = false; while (const SCEVMulExpr *Mul = dyn_cast<SCEVMulExpr>(Ops[Idx])) { + if (Ops.size() > MulOpsInlineThreshold) + break; // If we have an mul, expand the mul operands onto the end of the operands // list. Ops.erase(Ops.begin()+Idx); |
