Eli Friedman b80f778bd3 Get rid of an optimization in SCCP which appears to have many issues. Specifically, it doesn't handle many cases involving undef correctly, and it is missing other checks which ... lead to it trying to re-mark a value marked as a constant with a different value. It also appears to trigger very rarely. Fixes PR11357. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144352 91177308-0d34-0410-b5e6-96231b3b80d8		2011-11-11 01:16:15 +00:00
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2002-05-02-MissSecondInst.ll
2002-05-20-MissedIncomingValue.ll
2002-05-21-InvalidSimplify.ll
2002-08-30-GetElementPtrTest.ll
2003-06-24-OverdefinedPHIValue.ll
2003-08-26-InvokeHandling.ll
2004-11-16-DeadInvoke.ll
2004-12-10-UndefBranchBug.ll
2006-10-23-IPSCCP-Crash.ll
2006-12-04-PackedType.ll
2006-12-19-UndefBug.ll
2007-05-16-InvokeCrash.ll
2008-01-27-UndefCorrelate.ll
2008-04-22-multiple-ret-sccp.ll
2008-05-23-UndefCallFold.ll
2009-01-14-IPSCCP-Invoke.ll
2009-05-27-VectorOperandZero.ll
apint-array.ll
apint-basictest2.ll
apint-basictest3.ll
apint-basictest4.ll
apint-basictest.ll
apint-bigarray.ll
apint-bigint2.ll
apint-bigint.ll
apint-ipsccp1.ll
apint-ipsccp2.ll
apint-ipsccp3.ll
apint-ipsccp4.ll
apint-load.ll
apint-phi.ll
apint-select.ll
atomic-load-store.ll
calltest.ll
crash.ll
dg.exp
ipsccp-addr-taken.ll
ipsccp-basic.ll
loadtest.ll
logical-nuke.ll
retvalue-undef.ll
sccptest.ll
select.ll
switch.ll
undef-resolve.ll