<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Issue</th>
<td>
<a href=https://github.com/llvm/llvm-project/issues/56000>56000</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>
x86_64-windows-gnu host cannot build due to macro conflictions with error: redefinition of 'BI_ReadWriteBarrier'
</td>
</tr>
<tr>
<th>Labels</th>
<td>
new issue
</td>
</tr>
<tr>
<th>Assignees</th>
<td>
</td>
</tr>
<tr>
<th>Reporter</th>
<td>
trcrsired
</td>
</tr>
</table>
<pre>
I tried it with both my linux machine with Canadian compilation and native compiler. They both failed.
FAILED: tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/IdentifierTable.cpp.obj
D:\x86_64-windows-gnu\x86_64-w64-mingw32-mcf\x86_64-w64-mingw32\bin\c++.exe -DGTEST_HAS_RTTI=0 -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -ID:/building/llvm_build/tools/clang/lib/Basic -ID:/building/llvm-project/clang/lib/Basic -ID:/building/llvm-project/clang/include -ID:/building/llvm_build/tools/clang/include -ID:/building/llvm_build/include -ID:/building/llvm-project/llvm/include -Wa,-mbig-obj -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wmisleading-indentation -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -fno-strict-aliasing -O2 -DNDEBUG -fno-exceptions -fno-rtti -std=c++14 -MD -MT tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/IdentifierTable.cpp.obj -MF tools\clang\lib\Basic\CMakeFiles\obj.clangBasic.dir\IdentifierTable.cpp.obj.d -o tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/IdentifierTable.cpp.obj -c D:/building/llvm-project/clang/lib/Basic/IdentifierTable.cpp
In file included from D:/building/llvm-project/clang/lib/Basic/IdentifierTable.cpp:19:
D:/building/llvm-project/clang/include/clang/Basic/TargetBuiltins.h:112:34: error: redefinition of 'BI_ReadWriteBarrier'
112 | #define BUILTIN(ID, TYPE, ATTRS) BI##ID,
| ^~
D:/building/llvm-project/clang/include/clang/Basic/BuiltinsX86.def:26:73: note: in expansion of macro 'BUILTIN'
26 | # define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANG, FEATURE) BUILTIN(ID, TYPE, ATTRS)
| ^~~~~~~
D:/building/llvm-project/clang/include/clang/Basic/BuiltinsX86.def:2068:1: note: in expansion of macro 'TARGET_HEADER_BUILTIN'
2068 | TARGET_HEADER_BUILTIN(_ReadBarrier, "v", "nh", "intrin.h", ALL_MS_LANGUAGES, "")
| ^~~~~~~~~~~~~~~~~~~~~
D:/building/llvm-project/clang/include/clang/Basic/TargetBuiltins.h:112:34: note: 'BI_ReadWriteBarrier' previously defined here
112 | #define BUILTIN(ID, TYPE, ATTRS) BI##ID,
| ^~
D:/building/llvm-project/clang/include/clang/Basic/BuiltinsX86.def:26:73: note: in expansion of macro 'BUILTIN'
26 | # define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANG, FEATURE) BUILTIN(ID, TYPE, ATTRS)
| ^~~~~~~
D:/building/llvm-project/clang/include/clang/Basic/BuiltinsX86.def:2067:1: note: in expansion of macro 'TARGET_HEADER_BUILTIN'
2067 | TARGET_HEADER_BUILTIN(_ReadWriteBarrier, "v", "nh", "intrin.h", ALL_MS_LANGUAGES, "")
| ^~~~~~~~~~~~~~~~~~~~~
D:/building/llvm-project/clang/include/clang/Basic/TargetBuiltins.h:112:34: error: redefinition of 'BI_ReadWriteBarrier'
112 | #define BUILTIN(ID, TYPE, ATTRS) BI##ID,
| ^~
D:/building/llvm-project/clang/include/clang/Basic/BuiltinsX86.def:26:73: note: in expansion of macro 'BUILTIN'
26 | # define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANG, FEATURE) BUILTIN(ID, TYPE, ATTRS)
| ^~~~~~~
D:/building/llvm-project/clang/include/clang/Basic/BuiltinsX86.def:2069:1: note: in expansion of macro 'TARGET_HEADER_BUILTIN'
2069 | TARGET_HEADER_BUILTIN(_WriteBarrier, "v", "nh", "intrin.h", ALL_MS_LANGUAGES, "")
| ^~~~~~~~~~~~~~~~~~~~~
D:/building/llvm-project/clang/include/clang/Basic/TargetBuiltins.h:112:34: note: 'BI_ReadWriteBarrier' previously defined here
112 | #define BUILTIN(ID, TYPE, ATTRS) BI##ID,
| ^~
D:/building/llvm-project/clang/include/clang/Basic/BuiltinsX86.def:26:73: note: in expansion of macro 'BUILTIN'
26 | # define TARGET_HEADER_BUILTIN(ID, TYPE, ATTRS, HEADER, LANG, FEATURE) BUILTIN(ID, TYPE, ATTRS)
| ^~~~~~~
D:/building/llvm-project/clang/include/clang/Basic/BuiltinsX86.def:2067:1: note: in expansion of macro 'TARGET_HEADER_BUILTIN'
2067 | TARGET_HEADER_BUILTIN(_ReadWriteBarrier, "v", "nh", "intrin.h", ALL_MS_LANGUAGES, "")
| ^~~~~~~~~~~~~~~~~~~~~
[3197/5252] Building CXX object lib/Passes/CMakeFiles/LLVMPasses.dir/PassBuilder.cpp.obj
In file included from D:/building/llvm-project/llvm/include/llvm/Analysis/ModuleSummaryAnalysis.h:17,
from D:/building/llvm-project/llvm/lib/Passes/PassBuilder.cpp:59:
D:/building/llvm-project/llvm/include/llvm/IR/ModuleSummaryIndex.h: In constructor 'llvm::ModuleSummaryIndex::ModuleSummaryIndex(bool, bool)':
D:/building/llvm-project/llvm/include/llvm/IR/ModuleSummaryIndex.h:1175:73: warning: member 'llvm::ModuleSummaryIndex::Alloc' is used uninitialized [-Wuninitialized]
1175 | : HaveGVs(HaveGVs), EnableSplitLTOUnit(EnableSplitLTOUnit), Saver(Alloc),
| ^~~~~
ninja: build stopped: subcommand failed.
D:\building\llvm_build>
</pre>
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