[FTBFS] [clang] [i686t] ‘getParams’ is not a member of ‘llvm::coverage::mcdc’

[LW-archlinux]

llcm/clang trunk , rev 43b291c

75f0d40 causes build failure when building a 32-bit multilib version of clang (intended to be used by 32-bit apps like wine & steam that do run on x86_64 ) .

/home/panoramix/Documents/Aur/pkgbuilds/lib32-clang-minimal-git/src/llvm-project/clang/lib/CodeGen/CoverageMappingGen.cpp: In member function ‘const auto& {anonymous}::SourceMappingRegion::getMCDCDecisionParams() const’:
/home/panoramix/Documents/Aur/pkgbuilds/lib32-clang-minimal-git/src/llvm-project/clang/lib/CodeGen/CoverageMappingGen.cpp:193:18: error: ‘getParams’ is not a member of ‘llvm::coverage::mcdc’
  193 |     return mcdc::getParams<const mcdc::DecisionParameters>(MCDCParams);
      |                  ^~~~~~~~~
/home/panoramix/Documents/Aur/pkgbuilds/lib32-clang-minimal-git/src/llvm-project/clang/lib/CodeGen/CoverageMappingGen.cpp:193:28: error: expected primary-expression before ‘const’
  193 |     return mcdc::getParams<const mcdc::DecisionParameters>(MCDCParams);
      |                            ^~~~~
/home/panoramix/Documents/Aur/pkgbuilds/lib32-clang-minimal-git/src/llvm-project/clang/lib/CodeGen/CoverageMappingGen.cpp:193:28: error: expected ‘;’ before ‘const’
/home/panoramix/Documents/Aur/pkgbuilds/lib32-clang-minimal-git/src/llvm-project/clang/lib/CodeGen/CoverageMappingGen.cpp:193:58: error: expected unqualified-id before ‘>’ token
  193 |     return mcdc::getParams<const mcdc::DecisionParameters>(MCDCParams);
      |                                                          ^
make[2]: *** [lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/build.make:748: lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CoverageMappingGen.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:7959: lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/all] Error 2
make: *** [Makefile:136: all] Error 2
make: Leaving directory '/home/panoramix/Documents/Aur/pkgbuilds/lib32-clang-minimal-git/src/_build'

cmake arguments

    -G "Unix Makefiles"
    -D CMAKE_BUILD_TYPE=Release
    -D CMAKE_INSTALL_PREFIX=/usr
    -D CMAKE_SKIP_RPATH=ON
    -D CLANG_DEFAULT_PIE_ON_LINUX=ON
    -D CLANG_LINK_CLANG_DYLIB=ON
    -D CMAKE_CXX_FLAGS:STRING=-m32
    -D CMAKE_C_FLAGS:STRING=-m32
    -D LLVM_HOST_TRIPLE=$CHOST
    -D ENABLE_LINKER_BUILD_ID=ON
    -D LLVM_INCLUDE_DOCS=OFF
    -D LLVM_INCLUDE_TESTS=OFF
    -D LLVM_CONFIG="/usr/bin/llvm-config32"
    -D LLVM_ENABLE_RTTI=ON
    -D LLVM_LIBDIR_SUFFIX=32
    -D LLVM_LINK_LLVM_DYLIB=ON
    -D LLVM_TARGETS_TO_BUILD="AMDGPU;X86"

build log
lib32-clang-minimal-git-19.0.0_r489812.43b291cbecca-1-x86_64-build.log

[chapuni]

Seems a build glitch.

• Is it still blocking?
• Is it reproducible for you locally?
• Is -m32 required to reproduce?
• Does it use the installed llvm-dev tree (not clang and llvm in-tree together)?
• Could you show me the command line in the compilation?

[LW-archlinux]

Seems a build glitch.

* Is it still blocking?

yes, Rev 3b6e250 has the same issue.

* Is it reproducible for you locally?

yes

* Is `-m32` required to reproduce?

unknown.
A 64-bit build of the same revision where llvm + clang are build together from the same tree doesn't have the issue.
I will check a -m32 build of llvm + clang together later.

* Does it use the installed llvm-dev tree (not clang and llvm in-tree together)?

correct, llvm & clang are built separately .

* Could you show me the command line in the compilation?

The build is done on archlinux using makepkg that executes a PKGBUILD recipe.
Without understanding archlinux build system it may be hard to determine the exact command used for the compilation.

The recipe for clang is at https://aur.archlinux.org/packages/lib32-clang-minimal-git , the llvm one is at
https://aur.archlinux.org/packages/lib32-llvm-minimal-git .
Use the "view PKGBUILD' button to see the recipes.

[LW-archlinux]

Building llvm & clang together with -m32 does succeed, the seperate build still fails.