Missing Arm ACLE intrinsics for count leading sign (CLS) on unsigned datatypes

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Closed pbarrio closed 4 years ago

pbarrio commented 4 years ago


Bugzilla Link	47827
Resolution	DUPLICATE
Resolved on	Oct 14, 2020 02:24
Version	trunk
OS	All
CC	@Arnaud-de-Grandmaison-ARM,@DMG862,@DavidSpickett,@efriedma-quic,@zygoloid,@smithp35

Clang is missing intrinsics support for NEON CLS on unsigned integers: vcls_u8, vclsq_u8, vcls_u16, vclsq_u16, vcls_u32, vclsq_u32. See https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics.

DavidSpickett commented 4 years ago

This bug has been marked as a duplicate of bug llvm/llvm-project#46751