[PATCH] D66576: [Regalloc][WIP] Increase CSR cost in RegAllocGreedy to favour splitting/spill over CSR first use

[Qing Shan Zhang via Phabricator via llvm-commits]

steven.zhang added a comment.

.AMDGPU also override the getCSRFirstUseCost() but your patch didn't catch that. And would you please post some improve number for powerpc of this patch ?



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Comment at: llvm/test/CodeGen/PowerPC/tail-dup-break-cfg.ll:1
-; RUN: llc -O2 -o - %s | FileCheck %s
 target datalayout = "e-m:e-i64:64-n32:64"
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I suggest that, you should commit a NFC patch to update the CHCK first.


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  https://reviews.llvm.org/D66576/new/

https://reviews.llvm.org/D66576