[llvm] [RISCV] Add a check in lowerSELECT after foldBinOpIntoSelectIfProfitable (PR #97391)

[Yingwei Zheng via llvm-commits]

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@@ -58,3 +58,15 @@ entry:
   %res = sub i64 2, %select_
   ret i64 %res
 }
+
+define i64 @fold_binop_into_select_return_constant(i1 %c) {
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dtcxzyw wrote:

Please make sure that this function cannot be folded by middle-end.
See: https://godbolt.org/z/h1M7frG4j


https://github.com/llvm/llvm-project/pull/97391