Fix SCEVCommutativeExpr::print to be robust in the case of improper
expression canonicalization. Its job is to print what's there, not to
make judgements about it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101461 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 9e10137..14e6bcb 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -247,11 +247,13 @@
}
void SCEVCommutativeExpr::print(raw_ostream &OS) const {
- assert(NumOperands > 1 && "This plus expr shouldn't exist!");
const char *OpStr = getOperationStr();
- OS << "(" << *Operands[0];
- for (unsigned i = 1, e = NumOperands; i != e; ++i)
- OS << OpStr << *Operands[i];
+ OS << "(";
+ for (op_iterator I = op_begin(), E = op_end(); I != E; ++I) {
+ OS << **I;
+ if (next(I) != E)
+ OS << OpStr;
+ }
OS << ")";
}