[llvm] [Xtensa] Implement lowering SELECT_CC, SETCC. (PR #97017)

[Sergei Barannikov via llvm-commits]

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@@ -90,6 +90,22 @@ XtensaTargetLowering::XtensaTargetLowering(const TargetMachine &TM,
   setOperationAction(ISD::BR_CC, MVT::i64, Expand);
   setOperationAction(ISD::BR_CC, MVT::f32, Expand);
 
+  // Used by legalize types to correctly generate the setcc result.
+  setOperationPromotedToType(ISD::SETCC, MVT::i1, MVT::i32);
+  setOperationPromotedToType(ISD::BR_CC, MVT::i1, MVT::i32);
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s-barannikov wrote:

Looks redundant, this should be the default behavior.
Also, BR_CC case is repeated above.

https://github.com/llvm/llvm-project/pull/97017