[llvm] [DAG] Fold (bitwiseop X, (add (not Y), Z)) -> (bitwiseop X, (not (sub Y, Z))). (PR #141476)

[Simon Pilgrim via llvm-commits]

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@@ -0,0 +1,316 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc < %s -mtriple=aarch64-linux | FileCheck %s
+
+define i8 @andnot_add_with_neg_i8(i8 %0, i8 %1) {
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RKSimon wrote:

(style) if you can its preferred to avoid numbered variables (also means you can drop the `entry:` labels).

https://github.com/llvm/llvm-project/pull/141476