[llvm] [AArch64] Change IssueWidth to 6 in AArch64SchedNeoverseV2.td (PR #142565)

[David Sherwood via llvm-commits]

================
@@ -1,4 +1,5 @@
-; RUN: opt -passes=loop-unroll %s -o - | llc -O3 - -mtriple=aarch64-unknown-unknown -mcpu=neoverse-v2 -o - | FileCheck %s
+; RUN: opt -passes=loop-unroll %s -o - | llc -O3 - -mtriple=aarch64-unknown-unknown \
+; RUN:   -mcpu=neoverse-v1 -mattr=+sve2 -o - | FileCheck %s
----------------
david-arm wrote:

I changed the RUN line here to match the spirit of the test, which is to reassociate accumulators. It was previously relying upon the scheduling of a neoverse-v2 CPU, but I can get the same effect by tuning for neoverse-v1 and enabling SVE2.

https://github.com/llvm/llvm-project/pull/142565