[clang] [CIR][AMDGPU] Lower Language specific address spaces and implement AMDGPU target (PR #179084)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ppc64le-linux-test-suite` running on `ppc64le-clang-test-suite` while building `clang` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/95/builds/20539

<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
...
105.475 [2/1/84] Generating ASAN_INST_TEST_OBJECTS.gtest-all.cc.powerpc64le-inline.o
106.744 [0/2/85] Generating POWERPC64LELinuxDynamicConfig/Asan-powerpc64le-inline-Dynamic-Test
107.402 [0/1/86] Generating POWERPC64LELinuxConfig/Asan-powerpc64le-inline-Test
153.399 [3/5/1346] Linking CXX executable tools/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
165.183 [2/4/1347] No install step for 'runtimes'
165.289 [1/4/1349] Completed 'runtimes'
187.507 [1/3/1350] Linking CXX executable tools/clang/unittests/Interpreter/ClangReplInterpreterTests
222.560 [1/2/1351] Linking CXX executable tools/clang/tools/extra/clangd/unittests/ClangdTests
242.683 [1/1/1352] Linking CXX executable tools/clang/unittests/AllClangUnitTests
242.686 [0/1/1352] Running all regression tests
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=1443.666039

```

</details>

https://github.com/llvm/llvm-project/pull/179084