[PATCH] Fix generic shift expansion when shift amount is 0

[Paweł Bylica]

I asked about that test on LLVMdev today. There are opinions that is should check assembly generated instead of runtime results. I think we can check for "select" node in the assembly but the test will be implementation and target specific. What do you think? I can send you a test if you agree.


http://reviews.llvm.org/D4978

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