[llvm] [X86] ICMP EQ/NE MIN_SIGNED_INT - avoid immediate argument by using NEG + SETO/SETNO (PR #94948)

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aengelke wrote:

What about cmp x, 1(/dec x) + seto/setno? neg always clobbers the operand, but it might be beneficial to keep it?

https://github.com/llvm/llvm-project/pull/94948