[PATCH] [PATCH] Allow case-insensitive values for -mcpu for ARM and AArch64 targets in line with GCC.

[Renato Golin]

I agree with Richard that there is little point in forcing it to be case sensitive.

I also agree that if there is a more central way for the lower() call, we should use that.

About the tests, I think having a few of them in varying cases (like Cortex-A15, cortex-A53, Cortex-a57) should be enough. No need to be thorough for that.


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http://reviews.llvm.org/D9476

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