Hi all, According to the previous feedback on our RFC for AVX10 option adjustment and discussion with LLVM, we finalized how we are going to handle that.
The overall direction is to re-alias avx10.x alias to 512 bit and only using -mno-avx10.x to disable everything instead of the current confusing -mno-avx10.x-[256,512], leading to deprecating -mno-avx10.x-[256,512]. It is fine for AVX10.2 since it is just introduced. However, it will become tricky for AVX10.1 introduced in GCC 14. Thus, we will deprecate avx10.1 alias. For -mno- options, since we do not have avx10.1, having -mno-avx10.1 would become weird. We will keep both -mno-avx10.1-256 and -mno-avx10.1-512, while changing -mno-avx10.1-512 also disabling the whole AVX10.1 to align with future. For option re-design to follow the latter length to determine the AVX10 size, we choose not to change that since it will break the previous impression on -m options should enable everything after that. Also it will make options like -mavx10.2-512 -mavx10.4-256 losing its flexibilty on only enabling 512 bit on AVX10.1/2 but enabling 256 bit on AVX10.3/4. Upcoming are the two patches, the first patch will be backported to GCC 14. Ok for trunk? Thx, Haochen
