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Fix SCEVCommutativeExpr::print to be robust in the case of improper

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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
This commit is contained in:
Dan Gohman
2010-04-16 15:03:25 +00:00
parent 630b58bb5a
commit a5145c8d5a
1 changed files with 6 additions and 4 deletions
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lib/Analysis/ScalarEvolution.cpp
+6 -4
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@@ -247,11 +247,13 @@ void SCEVSignExtendExpr::print(raw_ostream &OS) const {
}
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 << ")";
}