Alexis Engelke 5368c1065f [X86][FastISel] Handle CRC32 intrinsics ...

Some applications make heavy use of the crc32 operation (e.g., as part
of a hash function), so having a FastISel path avoids fallbacks to
SelectionDAG and improves compile times, in our case by ~1.5%.

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D148023

2023-04-21 13:40:48 +02:00

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