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[NFC][regalloc] Model weight normalization as a virtual

Authored by mtrofin on Oct 1 2020, 4:53 PM.

Description

[NFC][regalloc] Model weight normalization as a virtual

Continuing from D88499, we can now model the normalization function as a
virtual member of VirtRegAuxInfo. Note that the default
(normalizeSpillWeight) is also used stand-alone in RAGreedy.

Differential Revision: https://reviews.llvm.org/D88713

Details

Committed
mtrofinOct 5 2020, 11:33 AM
Differential Revision
D88713: [NFC][regalloc] Model weight normalization as a virtual
Parents
rG85d506400081: docs: add documentation describing API Notes
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