[llvm] [AMDGPU] Include WWM register spill into BB Prolog (PR #111496)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clangd-ubuntu-tsan` running on `clangd-ubuntu-clang` while building `llvm` at step 6 "test-build-clangd-clangd-index-server-clangd-indexer-check-clangd".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/134/builds/6608

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-clangd-clangd-index-server-clangd-indexer-check-clangd) failure: test (failure)
******************** TEST 'Clangd :: spaces-in-delimited-input.test' FAILED ********************
Exit Code: 66

Command Output (stderr):
--
RUN: at line 1: clangd -input-style=delimited -sync < /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/clang-tools-extra/clangd/test/spaces-in-delimited-input.test 2>&1 | /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/bin/FileCheck /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/clang-tools-extra/clangd/test/spaces-in-delimited-input.test
+ clangd -input-style=delimited -sync
+ /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/bin/FileCheck /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/clang-tools-extra/clangd/test/spaces-in-delimited-input.test
RUN: at line 2: clangd -lit-test -sync < /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/clang-tools-extra/clangd/test/spaces-in-delimited-input.test 2>&1 | /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/bin/FileCheck /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/clang-tools-extra/clangd/test/spaces-in-delimited-input.test
+ clangd -lit-test -sync
+ /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/bin/FileCheck /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/clang-tools-extra/clangd/test/spaces-in-delimited-input.test

--

********************


```

</details>

https://github.com/llvm/llvm-project/pull/111496