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

Zhang Kang via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Oct 23 18:24:29 PDT 2019


ZhangKang marked 2 inline comments as done.
ZhangKang added inline comments.


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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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steven.zhang wrote:
> I suggest that, you should commit a NFC patch to update the CHCK first.
This is a WIP draft and have not fixed all check-all cases now. I want to get some quick feedback whether it's on the right direction and whether its performance is good at all different target. If this patch is OK for others, I will commit a NFC patch to update the CHECK.


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