David Majnemer 3f2ffe0423 SCCP: overdefined calls cannot become constant ...

We would attempt to fold away a call instruction which had been marked
overdefined.  However, it's not valid to transition to constant from
overdefined.

This fixes PR21512.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221513 91177308-0d34-0410-b5e6-96231b3b80d8

2014-11-07 08:54:19 +00:00

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2002-05-02-MissSecondInst.ll

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2002-05-20-MissedIncomingValue.ll

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2002-05-21-InvalidSimplify.ll

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2002-08-30-GetElementPtrTest.ll

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2003-06-24-OverdefinedPHIValue.ll

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2003-08-26-InvokeHandling.ll

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2004-11-16-DeadInvoke.ll

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2004-12-10-UndefBranchBug.ll

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2006-10-23-IPSCCP-Crash.ll

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2006-12-04-PackedType.ll

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2006-12-19-UndefBug.ll

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2007-05-16-InvokeCrash.ll

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2008-01-27-UndefCorrelate.ll

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2008-04-22-multiple-ret-sccp.ll

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2008-05-23-UndefCallFold.ll

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2009-01-14-IPSCCP-Invoke.ll

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2009-05-27-VectorOperandZero.ll

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apint-array.ll

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apint-basictest2.ll

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apint-basictest3.ll

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apint-basictest4.ll

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apint-basictest.ll

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apint-bigarray.ll

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apint-bigint2.ll

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apint-bigint.ll

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apint-ipsccp1.ll

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apint-ipsccp2.ll

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apint-ipsccp3.ll

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apint-ipsccp4.ll

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apint-load.ll

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apint-phi.ll

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apint-select.ll

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atomic-load-store.ll

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atomic.ll

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calltest.ll

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crash.ll

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ipsccp-addr-taken.ll

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ipsccp-basic.ll

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loadtest.ll

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logical-nuke.ll

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retvalue-undef.ll

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sccptest.ll

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select.ll

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switch.ll

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undef-resolve.ll

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vector-bitcast.ll

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