On 19 Jan 2017, at 16:40, Hans Wennborg <h...@chromium.org> wrote: > > On Thu, Jan 19, 2017 at 12:12 AM, Dimitry Andric <dimi...@andric.com> wrote: >> On 18 Jan 2017, at 16:45, Hans Wennborg via Release-testers >> <release-test...@lists.llvm.org> wrote: >>> Dear testers, >>> >>> 4.0.0-rc1 was just tagged from the branch, with r292377. >>> >>> There are still open merge requests and bugs, but I'd like to get the >>> testing started to see what issues come up. >> >> Unfortunately no builds for FreeBSD yet, as the Phase1 clang segfaults when >> building AsmParser.cpp: >> >> [ 1%] Building CXX object >> lib/MC/MCParser/CMakeFiles/LLVMMCParser.dir/AsmParser.cpp.o >> cd >> /home/dim/llvm-4.0.0/rc1/Phase2/Release/llvmCore-4.0.0-rc1.obj/lib/MC/MCParser >> && /home/dim/llvm-4.0 >> .0/rc1/Phase1/Release/llvmCore-4.0.0-rc1.install/usr/local/bin/clang++ >> -DGTEST_HAS_RTTI=0 -D__STDC_CO >> NSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS >> -I/home/dim/llvm-4.0.0/rc1/Phase2/Release/ll >> vmCore-4.0.0-rc1.obj/lib/MC/MCParser >> -I/home/dim/llvm-4.0.0/rc1/llvm.src/lib/MC/MCParser -I/home/dim/ll >> vm-4.0.0/rc1/Phase2/Release/llvmCore-4.0.0-rc1.obj/include >> -I/home/dim/llvm-4.0.0/rc1/llvm.src/include >> -I/usr/local/include -fPIC -fvisibility-inlines-hidden -Wall -W >> -Wno-unused-parameter -Wwrite-strings >> -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long >> -Wcovered-switch-default -Wnon-virtua >> l-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -Werror=date-time >> -std=c++11 -ffunction-sections - >> fdata-sections -O3 -DNDEBUG -fno-exceptions -fno-rtti -o >> CMakeFiles/LLVMMCParser.dir/AsmParser.cpp.o >> -c /home/dim/llvm-4.0.0/rc1/llvm.src/lib/MC/MCParser/AsmParser.cpp >> /home/dim/llvm-4.0.0/rc1/llvm.src/lib/MC/MCParser/AsmParser.cpp:2043:25: >> warning: variable 'CppHashLocL >> ineNo' is uninitialized when used here [-Wuninitialized] >> LastQueryLine = CppHashLocLineNo; >> ^~~~~~~~~~~~~~~~ >> /home/dim/llvm-4.0.0/rc1/llvm.src/lib/MC/MCParser/AsmParser.cpp:2036:32: >> note: initialize the variable >> 'CppHashLocLineNo' to silence this warning >> unsigned CppHashLocLineNo; >> ^ >> = 0 >> /home/dim/llvm-4.0.0/rc1/llvm.src/lib/MC/MCParser/AsmParser.cpp:2155:71: >> warning: variable 'LineNo' is >> uninitialized when used here [-Wuninitialized] >> SMDiagnostic NewDiag(*Diag.getSourceMgr(), Diag.getLoc(), Filename, LineNo, >> ^~~~~~ >> /home/dim/llvm-4.0.0/rc1/llvm.src/lib/MC/MCParser/AsmParser.cpp:2152:13: >> note: initialize the variable >> 'LineNo' to silence this warning >> int LineNo = >> ^ >> = 0 >> clang-4.0: error: unable to execute command: Segmentation fault (core dumped) >> clang-4.0: error: clang frontend command failed due to signal (use -v to see >> invocation) >> clang version 4.0.0 (tags/RELEASE_400/rc1) >> Target: i386-unknown-freebsd10.3 >> Thread model: posix >> InstalledDir: >> /home/dim/llvm-4.0.0/rc1/Phase1/Release/llvmCore-4.0.0-rc1.install/usr/local/bin >> clang-4.0: note: diagnostic msg: PLEASE submit a bug report to >> http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, >> and associated run script. >> clang-4.0: note: diagnostic msg: >> ******************** >> >> PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: >> Preprocessed source(s) and associated run script(s) are located at: >> clang-4.0: note: diagnostic msg: /home/dim/tmp/AsmParser-c3ca7e.cpp >> clang-4.0: note: diagnostic msg: /home/dim/tmp/AsmParser-c3ca7e.sh >> clang-4.0: note: diagnostic msg: >> >> ******************** >> gmake[2]: *** [lib/MC/MCParser/CMakeFiles/LLVMMCParser.dir/build.make:87: >> lib/MC/MCParser/CMakeFiles/LLVMMCParser.dir/AsmParser.cpp.o] Error 254 >> >> I thought this might be because r292133 was not merged yet, but I was wrong >> about that, it *is* merged. >> >> So I will have to investigate why it crashes here. > > Is this PR31692 that you filed today?
Yes. It turned out to be an assertion '(it != OpaqueRValues.end() && "no mapping for opaque value!"), function getOpaqueRValueMapping', but Phase2 is built without assertions, so it segfaulted instead. -Dimitry
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