Chandler Carruth c114be9a74 Fix a somewhat subtle pair of issues with JumpThreading I introduced in ... r220178. First, the creation routine doesn't insert prior to the terminator of the basic block provided, but really at the end of the basic block. Instead, get the terminator and insert before that. The next issue was that we need to ensure multiple PHI node entries for a single predecessor re-use the same cast instruction rather than creating new ones. All of the logic here was without tests previously. I've reduced and added a test case from the test suite that crashed without both of these fixes. llvm-svn: 220186		2014-10-20 05:34:36 +00:00
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2008-11-27-EntryMunge.ll
2010-08-26-and.ll
2011-04-02-SimplifyDeadBlock.ll
2011-04-14-InfLoop.ll
2012-07-19-NoSuccessorIndirectBr.ll
and-and-cond.ll
and-cond.ll
assume-edge-dom.ll	[LVI] Check for @llvm.assume dominating the edge branch	2014-10-14 16:04:49 +00:00
assume.ll
basic.ll
branch-no-const.ll
compare.ll
crash.ll
degenerate-phi.ll
indirectbr.ll
landing-pad.ll
lvi-load.ll
no-irreducible-loops.ll
or-undef.ll
phi-eq.ll
pr9331.ll
pr15851_hang.ll
select.ll
thread-loads.ll	Fix a somewhat subtle pair of issues with JumpThreading I introduced in	2014-10-20 05:34:36 +00:00