[PATCH] D62565: [PowerPC] Exploiting to use mtvsrdd instruction when save called-saved GPR register to VSR registers

[Qiu Chaofan via Phabricator via llvm-commits]

qiucf added inline comments.


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Comment at: llvm/lib/Target/PowerPC/PPCFrameLowering.cpp:2256
+          BuildMI(MBB, MI, DL, TII.get(PPC::MTVSRDD), Dst)
+              .addReg(VSRToGPRs[Dst][0], getKillRegState(true))
+              .addReg(VSRToGPRs[Dst][1], getKillRegState(true));
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jsji wrote:
> Do we want to save the two GPRs in the order of endian order? or maybe fixed litten endian?
Here it always uses big-endian element order to save and restore, so it doesn't matter?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D62565/new/

https://reviews.llvm.org/D62565