[llvm] [SLP] Prefer immediate opcode matches on score ties (PR #225869)

[Matt Arsenault via llvm-commits]

================
@@ -0,0 +1,61 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
+; RUN: opt -S -passes=slp-vectorizer -mtriple=amdgcn-amd-amdhsa -mcpu=gfx950 < %s | FileCheck %s
----------------
arsenm wrote:

```suggestion
; RUN: opt -S -passes=slp-vectorizer -mtriple=amdgpu9.50-amd-amdhsa < %s | FileCheck %s
```

https://github.com/llvm/llvm-project/pull/225869