[clang] [X86] Finely handle target of __builtin_ia32_cmp[p|s][s|d] from avx into sse/sse2/avx (PR #84136)

[Freddy Ye via cfe-commits]

FreddyLeaf wrote:

> My understanding is that you change the required feature of __builtin_ia32_cmp[p|s][s|d] from avx to sse for some condition codes. The title is not accurate.

You are right. Updated.

https://github.com/llvm/llvm-project/pull/84136