[llvm] [AMDGPU][ASAN] Move allocas to entry block in amdgpu-sw-lower-lds pass (PR #190772)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `arc-builder` running on `arc-worker` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/3/builds/31193

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

```
Step 6 (test-build-unified-tree-check-all) failure: 1200 seconds without output running [b'ninja', b'check-all'], attempting to kill
...
1.786 [46/18/8] Linking CXX executable unittests/DebugInfo/PDB/DebugInfoPDBTests
3.587 [45/18/9] cd /buildbot/worker/arc-folder/llvm-project/clang/bindings/python && /usr/local/bin/cmake -E env CLANG_NO_DEFAULT_CONFIG=1 LIBCLANG_LIBRARY_PATH=/buildbot/worker/arc-folder/build/lib /usr/local/bin/python3.9 -m unittest discover
.....................................................................................................................................................................................
----------------------------------------------------------------------
Ran 181 tests in 3.337s

OK
6.938 [44/18/10] Linking CXX executable bin/OrcV2CBindingsAddObjectFile
7.189 [43/18/11] Preparing lit tests
7.275 [42/18/12] Linking CXX executable bin/OrcV2CBindingsRemovableCode
command timed out: 1200 seconds without output running [b'ninja', b'check-all'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1208.126737

```

</details>

https://github.com/llvm/llvm-project/pull/190772