[clang] [llvm] [Instcombine] use zext's nneg flag for icmp folding (PR #70845)

[Léonard Oest O'Leary via cfe-commits]

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@@ -0,0 +1,185 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --tool ./bin/opt --version 3
+; See PRXXX for more details
+; RUN-./bin/opt: opt < %s -S -passes=ipsccp | FileCheck %s
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leo-ard wrote:

yep, a typo on my end

https://github.com/llvm/llvm-project/pull/70845