[llvm] [DFAJumpThreading] Try harder to avoid cycles in paths. (PR #169151)

[Hongyu Chen via llvm-commits]

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@@ -246,5 +246,82 @@ exit:
   ret i32 0
 }
 
+define i8 @cyclesInPaths1(i1 %call12, i1 %cmp18) {
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XChy wrote:

Could you add similar tests to show the final transformed IR?

https://github.com/llvm/llvm-project/pull/169151