llvm-6502/test/Transforms/LoopSimplify
Hal Finkel fc3b7bbf49 UpdatePHINodes in BasicBlockUtils should not crash on duplicate predecessors
UpdatePHINodes has an optimization to reuse an existing PHI node, where it
first deletes all of its entries and then replaces them. Unfortunately, in the
case where we had duplicate predecessors (which are allowed so long as the
associated PHI entries have the same value), the loop removing the existing PHI
entries from the to-be-reused PHI would assert (if that PHI was not the one
which had the duplicates).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192001 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-04 23:41:05 +00:00
..
2003-04-25-AssertFail.ll
2003-05-12-PreheaderExitOfChild.ll
2003-08-15-PreheadersFail.ll
2003-12-10-ExitBlocksProblem.ll
2004-02-05-DominatorInfoCorruption.ll
2004-03-15-IncorrectDomUpdate.ll
2004-04-01-IncorrectDomUpdate.ll
2004-04-12-LoopSimplify-SwitchBackedges.ll
2004-04-13-LoopSimplifyUpdateDomFrontier.ll
2007-10-28-InvokeCrash.ll Update to the new EH syntax. 2011-09-19 23:50:34 +00:00
2010-07-15-IncorrectDomFrontierUpdate.ll
2010-12-26-PHIInfiniteLoop.ll
2011-12-14-LandingpadHeader.ll Make loop preheader insertion in LoopSimplify handle the case where the loop header is a landing pad correctly (by splitting the landingpad out of the loop header). Make some adjustments to the rest of LoopSimplify to make it clear that the rest of LoopSimplify isn't making bad assumptions about the presence of landing pads. PR11575. 2011-12-15 00:50:34 +00:00
2012-03-20-indirectbr.ll LoopSimplify bug fix. Handle indirect loop back edges. 2012-03-20 21:24:52 +00:00
basictest.ll
dup-preds.ll UpdatePHINodes in BasicBlockUtils should not crash on duplicate predecessors 2013-10-04 23:41:05 +00:00
hardertest.ll
indirectbr-backedge.ll
indirectbr.ll Convert all tests using TCL-style quoting to use shell-style quoting. 2012-07-02 12:47:22 +00:00
merge-exits.ll Convert all tests using TCL-style quoting to use shell-style quoting. 2012-07-02 12:47:22 +00:00
phi-node-simplify.ll
preserve-scev.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
single-backedge.ll Generalize test case to handle multiple indvars modes. 2011-09-13 03:17:25 +00:00
unreachable-loop-pred.ll Rename 'loopsimplify' to 'loop-simplify'. 2011-02-10 23:38:10 +00:00