[PATCH] D94372: [X86][AMX] Prohibit pointer cast on load.

[Pengfei Wang via Phabricator via llvm-commits]

pengfei added inline comments.


================
Comment at: llvm/test/Transforms/InstCombine/load.ll:452
+entry:
+  %vec = load x86_amx, x86_amx* %src, align 64
+  %bc = bitcast x86_amx %vec to <256 x i32>
----------------
I think we had disabled the chance that `x86_amx*` been generated by compiler. It may mean somthing wrong if we see such load. So I think it's better just raise an assert fail for it here.
Besides, it looks safe and better for performance to combine
```
%vec = load x86_amx, x86_amx* %src, align 64
%bc = bitcast x86_amx %vec to <256 x i32>
```
to
```
%bc = load <256 x i32>, <256 x i32>* %src, align 64
```


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D94372/new/

https://reviews.llvm.org/D94372