Merging r259702:
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r259702 | majnemer | 2016-02-03 13:30:34 -0800 (Wed, 03 Feb 2016) | 7 lines
[LoopStrengthReduce] Don't rewrite PHIs with incoming values from CatchSwitches
Bail out if we have a PHI on an EHPad that gets a value from a
CatchSwitchInst. Because the CatchSwitchInst cannot be split, there is
no good place to stick any instructions.
This fixes PR26373.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_38@261126
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