Fraser Cormack eabf11f9ea [CodeGenPrepare] Avoid a scalable-vector crash in ctlz/cttz ...

This patch fixes a crash when despeculating ctlz/cttz intrinsics with
scalable-vector types. It is not safe to speculatively get the size of
the vector type in bits in case the vector type is not a fixed-length type. As
it happens this isn't required as vector types are skipped anyway.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D112141

2021-10-20 16:45:55 +01:00

311 KiB

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