[llvm-bugs] [Bug 28897] New: PCH/headersearch.cpp flaky on Windows

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28897

            Bug ID: 28897
           Summary: PCH/headersearch.cpp flaky on Windows
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: nicolasweber at gmx.de
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Failed once here, then cycled green on the next build:
http://lab.llvm.org:8011/builders/clang-x86-win2008-selfhost/builds/9597

FAIL: Clang :: PCH/headersearch.cpp (7160 of 27623)
******************** TEST 'Clang :: PCH/headersearch.cpp' FAILED
********************
Script:
--
rm -rf
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved
mkdir -p
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/sub
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/sub2
echo 'struct orig_sub{char c; int i; };' >
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/sub/orig_sub.h
echo 'void orig_sub2_1();' >
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/sub2/orig_sub2_1.h
echo '#include "orig_sub2_1.h"' >
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/sub2/orig_sub2.h
echo 'template <typename T> void tf() { orig_sub2_1(); T::foo(); }' >>
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/sub2/orig_sub2.h
echo 'void foo() {}' >
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/tmp2.h
echo '#include "tmp2.h"' >
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/all.h
echo '#include "sub/orig_sub.h"' >>
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/all.h
echo '#include "orig_sub2.h"' >>
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/all.h
echo 'int all();' >>
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/all.h
cd
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig
&& C:/buildbot/slave-config/clang-x86-win2008-selfhost/stage2/./bin/clang.EXE
-cc1 -internal-isystem
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\bin\..\lib\clang\4.0.0\include
-nostdsysteminc -triple i686-pc-mingw32 -x c++ -emit-pch -o all.h.pch -Isub2
all.h
cp -R
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved
C:/buildbot/slave-config/clang-x86-win2008-selfhost/stage2/./bin/clang.EXE -cc1
-internal-isystem
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\bin\..\lib\clang\4.0.0\include
-nostdsysteminc -triple i686-pc-mingw32 -include-pch all.h.pch
-IC:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved
-IC:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved/sub2
-Wpadded -emit-llvm-only
C:\buildbot\slave-config\clang-x86-win2008-selfhost\llvm\tools\clang\test\PCH\headersearch.cpp
2>
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp.stderr
grep 'struct orig_sub'
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp.stderr
not C:/buildbot/slave-config/clang-x86-win2008-selfhost/stage2/./bin/clang.EXE
-cc1 -internal-isystem
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\bin\..\lib\clang\4.0.0\include
-nostdsysteminc -triple i686-pc-mingw32 -DREDECL -include-pch all.h.pch
-IC:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved
-IC:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved/sub2
-emit-llvm-only
C:\buildbot\slave-config\clang-x86-win2008-selfhost\llvm\tools\clang\test\PCH\headersearch.cpp
2>
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp.stderr
grep 'void foo'
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp.stderr
not C:/buildbot/slave-config/clang-x86-win2008-selfhost/stage2/./bin/clang.EXE
-cc1 -internal-isystem
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\bin\..\lib\clang\4.0.0\include
-nostdsysteminc -triple i686-pc-mingw32 -DINSTANTIATION -include-pch all.h.pch
-IC:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved
-IC:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved/sub2
-emit-llvm-only
C:\buildbot\slave-config\clang-x86-win2008-selfhost\llvm\tools\clang\test\PCH\headersearch.cpp
2>
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp.stderr
grep 'orig_sub2_1'
C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp.stderr
--
Exit Code: 1

Command Output (stdout):
--
$ "rm" "-rf"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved"
$ "mkdir" "-p"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/sub"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig/sub2"
$ "echo" "struct orig_sub{char c; int i; };"
$ "echo" "void orig_sub2_1();"
$ "echo" "#include "orig_sub2_1.h""
$ "echo" "template <typename T> void tf() { orig_sub2_1(); T::foo(); }"
$ "echo" "void foo() {}"
$ "echo" "#include "tmp2.h""
$ "echo" "#include "sub/orig_sub.h""
$ "echo" "#include "orig_sub2.h""
$ "echo" "int all();"
$ "C:/buildbot/slave-config/clang-x86-win2008-selfhost/stage2/./bin/clang.EXE"
"-cc1" "-internal-isystem"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\bin\..\lib\clang\4.0.0\include"
"-nostdsysteminc" "-triple" "i686-pc-mingw32" "-x" "c++" "-emit-pch" "-o"
"all.h.pch" "-Isub2" "all.h"
$ "cp" "-R"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved"
$ "C:/buildbot/slave-config/clang-x86-win2008-selfhost/stage2/./bin/clang.EXE"
"-cc1" "-internal-isystem"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\bin\..\lib\clang\4.0.0\include"
"-nostdsysteminc" "-triple" "i686-pc-mingw32" "-include-pch" "all.h.pch"
"-IC:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved"
"-IC:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_moved/sub2"
"-Wpadded" "-emit-llvm-only"
"C:\buildbot\slave-config\clang-x86-win2008-selfhost\llvm\tools\clang\test\PCH\headersearch.cpp"
# redirected output from
'C:\\buildbot\\slave-config\\clang-x86-win2008-selfhost\\stage2\\tools\\clang\\test\\PCH\\Output\\headersearch.cpp.tmp.stderr':
fatal error: file
'C:\buildbot\slave-config\clang-x86-win2008-selfhost\stage2\tools\clang\test\PCH\Output\headersearch.cpp.tmp_orig\all.h'
has been modified since the precompiled header 'all.h.pch' was built

note: please rebuild precompiled header 'all.h.pch'

1 error generated.


note: command had no output on stdout or stderr
error: command failed with exit status: 1

--

********************



Possibly related to r275261 :-/

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