PCH failure in CI: "xxxxx.h has been modified since the precompiled header ... was built"

[joker-eph]

https://buildkite.com/llvm-project/github-pull-requests/builds/182498#0196fd42-b697-4235-96bc-d1b9908887cb

CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/clang++ -DFLANG_INCLUDE_TESTS=1 -DGTEST_HAS_RTTI=0 -DHAS_QUADMATHLIB -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/lib/Evaluate -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/../mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/clang/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/../clang/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -Xclang -fno-pch-timestamp -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -Winvalid-pch -Xclang -include-pch -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx -MD -MT tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/characteristics.cpp.o -MF tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/characteristics.cpp.o.d -o tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/characteristics.cpp.o -c /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/lib/Evaluate/characteristics.cpp
fatal error: file '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/include/llvm/Support/Compiler.h' has been modified since the precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch' was built: size changed (was 26890, now 25753)
note: please rebuild precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch'
1 error generated.
[6178/6782] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o
FAILED: tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/clang++ -DFLANG_INCLUDE_TESTS=1 -DGTEST_HAS_RTTI=0 -DHAS_QUADMATHLIB -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/lib/Evaluate -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/../mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/clang/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/../clang/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -Xclang -fno-pch-timestamp -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -Winvalid-pch -Xclang -include-pch -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx -MD -MT tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o -MF tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o.d -o tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o -c /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/lib/Evaluate/check-expression.cpp
fatal error: file '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/include/llvm/Support/Compiler.h' has been modified since the precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch' was built: size changed (was 26890, now 25753)
note: please rebuild precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch'

[llvmbot]

@llvm/issue-subscribers-infrastructure

Author: Mehdi Amini (joker-eph)

https://buildkite.com/llvm-project/github-pull-requests/builds/182498#0196fd42-b697-4235-96bc-d1b9908887cb

CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/clang++ -DFLANG_INCLUDE_TESTS=1 -DGTEST_HAS_RTTI=0 -DHAS_QUADMATHLIB -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/lib/Evaluate -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/../mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/clang/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/../clang/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -Xclang -fno-pch-timestamp -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -Winvalid-pch -Xclang -include-pch -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx -MD -MT tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/characteristics.cpp.o -MF tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/characteristics.cpp.o.d -o tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/characteristics.cpp.o -c /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/lib/Evaluate/characteristics.cpp
fatal error: file '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/include/llvm/Support/Compiler.h' has been modified since the precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch' was built: size changed (was 26890, now 25753)
note: please rebuild precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch'
1 error generated.
[6178/6782] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o
FAILED: tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/clang++ -DFLANG_INCLUDE_TESTS=1 -DGTEST_HAS_RTTI=0 -DHAS_QUADMATHLIB -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/lib/Evaluate -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/include -I/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/../mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/mlir/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/clang/include -isystem /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/../clang/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -Xclang -fno-pch-timestamp -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -Winvalid-pch -Xclang -include-pch -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx -MD -MT tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o -MF tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o.d -o tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o -c /var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/flang/lib/Evaluate/check-expression.cpp
fatal error: file '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/llvm/include/llvm/Support/Compiler.h' has been modified since the precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch' was built: size changed (was 26890, now 25753)
note: please rebuild precompiled header '/var/lib/buildkite-agent/builds/linux-56-59b8f5d88-dbqjl-1/llvm-project/github-pull-requests/build/tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/cmake_pch.hxx.pch'

[lenary]

This looks similar to #138719 and I've hit the issue too. I think it's just a flang issue?

[boomanaiden154]

It should be the same issue. I'm going to make #142449 canonical.