[PATCH] D142948: [OpenCL] Disable vector to scalar types coercion for OpenCL

[John McCall via Phabricator via cfe-commits]

rjmccall added a comment.

Does the x86 backend lower these small vectors to the same ABI?  If so, I think we could just teach Clang unconditionally that it doesn't need this coercion on x86 targets.  If not, this is an ABI break; are you sure that's okay?


Repository:
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  https://reviews.llvm.org/D142948/new/

https://reviews.llvm.org/D142948