[PATCH] D99966: [X86][AMX] Refactor for PostRA ldtilecfg pass.
Pengfei Wang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Apr 12 23:58:39 PDT 2021
pengfei added inline comments.
================
Comment at: llvm/lib/Target/X86/X86TileConfig.cpp:123
+ unsigned Index = VRM.getPhys(VirtReg) - X86::TMM0;
+ if (!Phys2Virt[Index])
+ Phys2Virt[Index] = VirtReg;
----------------
xiangzhangllvm wrote:
> I see here suppose all virtual tile regs are same shape, how we handle the cfg for tileload/store at spill ?
The assumption is all virtual regs that bound to the same physical regs are the same shape. We don't handle cfg when spill.
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rG LLVM Github Monorepo
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https://reviews.llvm.org/D99966/new/
https://reviews.llvm.org/D99966
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