James Molloy 6c009c1c85 [SimplifyCFG] Followup fix to r280790
In failure cases it's not guaranteed that the PHI we're inspecting is actually in the successor block! In this case we need to bail out early, and never query getIncomingValueForBlock() as that will cause an assert.

llvm-svn: 280794
2016-09-07 09:01:22 +00:00
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