[llvm] [LLVM][ISel][AArch64 Remove AArch64ISD::FCM##z nodes. (PR #135817)

[Paul Walker via llvm-commits]

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@@ -264,15 +271,16 @@ body:             |
   bb.0:
     liveins: $q0, $q1
 
-    ; Two compares.
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paulwalker-arm wrote:

That's the downside of using update_mir_test_checks.py.  I see no value in having to manually maintain things that update_mir_test_checks.py has chosen to throw away.  That said, I also don't see them as useful because the CHECK lines already show what is expected. Some of the removed comments were just incorrect.

https://github.com/llvm/llvm-project/pull/135817