Luo, Yuanke aaaf9cede7 [X86][AMX] Replace LDTILECFG with PLDTILECFGV on auto-config. ...

There is intrinsic `@llvm.x86.ldtilecfg` which is lowered to LDTILECFG.
This intrinsic is open for user to configure tile registers by
themselves. There is a chance that `@llvm.x86.ldtilecfg` would be mixed
with the new AMX intrinsics which depend on compiler to configure tile
registers. Separate pusedo instruction PLDTILECFGV would avoid
unexpected behavious when `@llvm.x86.ldtilecfg` is mixed with new AMX
intrinsics. Though user should not mix the two programming model,
compiler should avoid crash or UB when they are mixed.

Differential Revision: https://reviews.llvm.org/D126519

2022-05-27 16:38:35 +08:00

6.5 KiB

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