Chen Zheng 0ed4cf4bf3 [PowerPC] support register pressure reduction in machine combiner.
Reassociating some patterns to generate more fma instructions to
reduce register pressure.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D92071
2021-01-24 21:28:21 -05:00
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2018-09-07 07:56:05 +00:00
2020-03-19 08:34:48 -05:00
2020-06-01 02:30:27 +00:00