[llvm] [TargetLowering] Change subtraction to do (LHS < RHS) XOR (RESULT < 0) (PR #150872)

[Matt Arsenault via llvm-commits]

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@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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arsenm wrote:

Avoid switching tests to generated checks in functional commits 

https://github.com/llvm/llvm-project/pull/150872