[llvm] [AArch64][nfc] Remove llvm/test/CodeGen/AArch64/README (PR #156881)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-aarch64

Author: Cullen Rhodes (c-rhodes)

<details>
<summary>Changes</summary>

It was added (02650ac03632) to document SVE-related warnings in tests, but these were removed a while ago now (672f67300466).

---
Full diff: https://github.com/llvm/llvm-project/pull/156881.diff


1 Files Affected:

- (removed) llvm/test/CodeGen/AArch64/README (-11) 


``````````diff
diff --git a/llvm/test/CodeGen/AArch64/README b/llvm/test/CodeGen/AArch64/README
deleted file mode 100644
index b0a93e8668eeb..0000000000000
--- a/llvm/test/CodeGen/AArch64/README
+++ /dev/null
@@ -1,11 +0,0 @@
-++ SVE CodeGen Warnings ++
-
-When the WARN check lines fail in the SVE codegen tests it most likely means you
-have introduced a warning due to:
-1. Adding an invalid call to VectorType::getNumElements() or EVT::getVectorNumElements()
-   when the type is a scalable vector.
-2. Relying upon an implicit cast conversion from TypeSize to uint64_t.
-
-For generic code, please modify your code to work with ElementCount and TypeSize directly.
-For target-specific code that only deals with fixed-width vectors, use the fixed-size interfaces.
-Please refer to the code where those functions live for more details.

``````````

</details>


https://github.com/llvm/llvm-project/pull/156881