Esme-Yi 6e0ad5bc8c [PowerPC] Add an ISEL pattern for Mul with Imm.
Summary: This patch try to do the following transformation if the multiplier doen't fit int16:
			(mul X, c1 << c2) -> (rldicr (mulli X, c1) c2)

Reviewed By: jsji, steven.zhang

Differential Revision: https://reviews.llvm.org/D87384
2020-11-10 06:52:39 +00:00
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