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[NFC][Regalloc] VirtRegAuxInfo::Hint does not need to be a field

Authored by mtrofin on Oct 9 2020, 1:35 PM.

Description

[NFC][Regalloc] VirtRegAuxInfo::Hint does not need to be a field

It is only used in weightCalcHelper, and cleared upon its finishing its
job there.

The patch further cleans up style guide discrepancies, and simplifies
CopyHint by removing duplicate 'IsPhys' information (it's what the Reg
field would report).

Details

Committed
mtrofinOct 9 2020, 1:42 PM
Parents
rG6fd994b4b7ac: [Hexagon] Remove ISD node VSPLATW, use VSPLAT instead
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