[llvm] [X86][Inline] Check correct function for target feature check (PR #152515)

[Simon Pilgrim via llvm-commits]

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@@ -55,27 +54,54 @@ define internal void @caller_not_avx2() {
   ret void
 }
 
+; Should be inlined, as caller_avx4 is ABI compatible. The fact that we don't
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RKSimon wrote:

caller_avx4 -> caller_avx7 ?

https://github.com/llvm/llvm-project/pull/152515