phoebewang wrote: > I'm a little bit confused, What's the expected behavior of `+avx10.1-512 > -avx10.1-256` in codegen aspect? Should we generate only instructions in the > difference of sets? Or do we consider `avx10.1-256` as a base of > `avx10.1-512` and if it is disabled `avx10.1-512` can't be enabled?
`-avx10.1-256` works like `-avx512f`, that says, they are special as a fundamental feature, which will turn off all derivative features for AVX10 and AVX512 respectively. OTOH, derivative features will only turn off the difference set, e.g., `+avx10.3-256 -avx10.2-256` equals to `+avx10.1-256`. https://github.com/llvm/llvm-project/pull/71318 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
