[llvm] [AArch64][NEON] Add famax/famin codegen patterns (PR #103027)

[David Green via llvm-commits]

================
@@ -0,0 +1,207 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=aarch64 -mattr=+faminmax -verify-machineinstrs %s -o - | FileCheck %s
+; RUN: llc -mtriple=aarch64 -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=CHECK-NO-FAMINMAX
+
----------------
davemgreen wrote:

Sigh, I shouldn't have said anything. The more important part was about adding fminnum support. I don't believe this makes things simpler though, and we have several thousand tests that rightly put the triple in the run line. At the very least it keeps everything close together (triple and attibutes) which makes then easier to read, and in the end of the day being consistent is more important. We will always need triples in some run lines, so it's best to keep them in all. Thanks.

https://github.com/llvm/llvm-project/pull/103027