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When testing whether a given SCEV depends on a temporary symbolic
name, test whether the SCEV itself is that temporary symbolic name, in addition to checking whether the symbolic name appears as a possibly-indirect operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96216 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2566,7 +2566,7 @@ ScalarEvolution::ForgetSymbolicName(Instruction *I, const SCEV *SymName) {
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if (It != Scalars.end()) {
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// Short-circuit the def-use traversal if the symbolic name
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// ceases to appear in expressions.
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if (!It->second->hasOperand(SymName))
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if (It->second != SymName && !It->second->hasOperand(SymName))
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continue;
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// SCEVUnknown for a PHI either means that it has an unrecognized
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