[clang-tools-extra] [Legalizer] Expand fmaximum and fminimum (PR #67301)

[Qiu Chaofan via cfe-commits]

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@@ -8177,6 +8177,64 @@ SDValue TargetLowering::expandFMINNUM_FMAXNUM(SDNode *Node,
   return SDValue();
 }
 
+SDValue TargetLowering::expandFMINIMUM_FMAXIMUM(SDNode *N,
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ecnelises wrote:

Can MIR be valid input for legalizers? I see MIR outputs are all legalized.

https://github.com/llvm/llvm-project/pull/67301