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CodeGen: Refactor regallocator command line and target selection

Authored by arsenm on Feb 22 2019, 10:15 AM.

Description

CodeGen: Refactor regallocator command line and target selection

Make the sequence of passes to select and rewrite instructions to
physical registers be a target callback. This is to prepare to allow
targets to split register allocation into multiple phases.

Details

Committed
arsenmJan 7 2021, 10:13 AM
Parents
rGcf5415c727dd: [PGO][PGSO] Let unroll hints take precedence over PGSO.
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