[clang] [llvm] [HLSL][RootSignature] Implement initial parsing of the descriptor table clause params (PR #133800)

Thu Apr 17 20:54:34 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-sie-ubuntu-fast` running on `sie-linux-worker` while building `clang,llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/144/builds/23055

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
0.161 [1550/5/57] Building DiagnosticGroups.inc...
0.172 [164/4/58] Building DiagnosticSerializationKinds.inc...
0.210 [130/32/59] Generating VCSVersion.inc
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2.403 [123/36/62] Building CXX object tools/clang/tools/diagtool/CMakeFiles/diagtool.dir/ListWarnings.cpp.o
2.657 [123/35/63] Building CXX object tools/clang/tools/diagtool/CMakeFiles/diagtool.dir/DiagnosticNames.cpp.o
3.026 [123/34/64] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Warnings.cpp.o
3.062 [123/33/65] Building CXX object tools/clang/tools/diagtool/CMakeFiles/diagtool.dir/TreeView.cpp.o
4.412 [123/32/66] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseHLSLRootSignature.cpp.o
FAILED: tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseHLSLRootSignature.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /usr/bin/g++ -DCLANG_EXPORTS -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/tools/clang/lib/Parse -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Parse -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/tools/clang/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -MD -MT tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseHLSLRootSignature.cpp.o -MF tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseHLSLRootSignature.cpp.o.d -o tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseHLSLRootSignature.cpp.o -c /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Parse/ParseHLSLRootSignature.cpp
In file included from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Parse/ParseHLSLRootSignature.h:23,
                 from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Parse/ParseHLSLRootSignature.cpp:9:
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include/llvm/Frontend/HLSL/HLSLRootSignature.h:42:12: error: declaration of ‘llvm::hlsl::rootsig::Register llvm::hlsl::rootsig::DescriptorTableClause::Register’ changes meaning of ‘Register’ [-fpermissive]
   42 |   Register Register;
      |            ^~~~~~~~
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include/llvm/Frontend/HLSL/HLSLRootSignature.h:28:8: note: ‘Register’ declared here as ‘struct llvm::hlsl::rootsig::Register’
   28 | struct Register {
      |        ^~~~~~~~
4.595 [123/31/67] Building CXX object lib/Object/CMakeFiles/LLVMObject.dir/IRSymtab.cpp.o
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13.554 [123/28/70] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseInit.cpp.o
13.811 [123/27/71] Building CXX object tools/clang/lib/Parse/CMakeFiles/obj.clangParse.dir/ParseHLSL.cpp.o
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```

</details>

https://github.com/llvm/llvm-project/pull/133800