[PATCH] D88062: [ARM] add .f16 -> .16 token alias

[Dave Green via Phabricator via llvm-commits]

dmgreen added a reviewer: ostannard.
dmgreen added a comment.

Hmm...

2cf294a213c01d074c35f1a6d579092da8caa54c possibly pre-dates when fp16 was a common thing in the ARM backend.

vmov.16 r3, s6 (or vmov.p8 r5, s2) seems like an odd instruction to me if they are aliases of vmov, but we are reaching the limit of my very narrow assembler knowledge. It seems that gcc will treat vmov.16 as a vmov.f16 (and require fullfp16). It will not accept vmov.p8, but other assemblers will and treat them like a vmov.

Is this to ease porting between gcc and clang?


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https://reviews.llvm.org/D88062