[llvm] [AMDGPU][True16] Legalize S16 for stores & loads in GlobalISel when True16 is enabled (PR #176963)

[Petar Avramovic via llvm-commits]

================
@@ -1,28 +1,44 @@
 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
-# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -mattr=+real-true16 -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX11,GFX11-TRUE16 %s
-# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -mattr=-real-true16 -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX11,GFX11-FAKE16 %s
-# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -mattr=+real-true16 -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX12,GFX12-TRUE16 %s
-# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -mattr=-real-true16 -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX12,GFX12-FAKE16 %s
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -mattr=+real-true16 -run-pass=legalizer %s -o - | FileCheck --allow-unused-prefixes --check-prefixes=GFX11,GFX11-TRUE16 %s
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -mattr=-real-true16 -run-pass=legalizer %s -o - | FileCheck --allow-unused-prefixes --check-prefixes=GFX11,GFX11-FAKE16 %s
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -mattr=+real-true16 -run-pass=legalizer %s -o - | FileCheck --allow-unused-prefixes --check-prefixes=GFX12,GFX12-TRUE16 %s
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -mattr=-real-true16 -run-pass=legalizer %s -o - | FileCheck --allow-unused-prefixes --check-prefixes=GFX12,GFX12-FAKE16 %s
----------------
petar-avramovic wrote:

```suggestion
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -mattr=+real-true16 -run-pass=legalizer %s -o - | FileCheck --check-prefix=TRUE16 %s
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -mattr=-real-true16 -run-pass=legalizer %s -o - | FileCheck --check-prefix=FAKE16 %s
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -mattr=+real-true16 -run-pass=legalizer %s -o - | FileCheck --check-prefix=TRUE16 %s
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -mattr=-real-true16 -run-pass=legalizer %s -o - | FileCheck --check-prefix=FAKE16 %s
```

https://github.com/llvm/llvm-project/pull/176963