build world failing

[Andrew Stevenson]

Hi,

I am having trouble building world. Currently running 10.1-PRERELEASE r270922. I have update source a few times in case it was a temporary breakage but am now trying to build r274327.

It always stops in the same place:

clang++   -O2 -pipe -I/usr/src/lib/clang/libllvmscalaropts/../../../contrib/llvm/include -I/usr/src/lib/clang/libllvmscalaropts/../../../contrib/llvm/to
ols/clang/include -I/usr/src/lib/clang/libllvmscalaropts/../../../contrib/llvm/lib/Transforms/Scalar -I. -I/usr/src/lib/clang/libllvmscalaropts/../../..
/contrib/llvm/../../lib/clang/include -DLLVM_ON_UNIX -DLLVM_ON_FREEBSD -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DNDEBUG -DCLANG_ENABLE_ARCMT -DCL
ANG_ENABLE_REWRITER -DCLANG_ENABLE_STATIC_ANALYZER -fno-strict-aliasing -DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd10.1\" -DLLVM_HOST_TRIPLE=\
"x86_64-unknown-freebsd10.1\" -DDEFAULT_SYSROOT=\"\" -Qunused-arguments -fstack-protector  -fno-exceptions -fno-rtti -Wno-c++11-extensions  -c /usr/src/
lib/clang/libllvmscalaropts/../../../contrib/llvm/lib/Transforms/Scalar/Reassociate.cpp -o Reassociate.o
Stack dump:
0.      Program arguments: /usr/obj/usr/src/tmp/usr/bin/clang++ -cc1 -triple x86_64-unknown-freebsd10.1 -emit-obj -disable-free -disable-llvm-verifier -
main-file-name Reassociate.cpp -mrelocation-model static -mdisable-fp-elim -relaxed-aliasing -masm-verbose -mconstructor-aliases -munwind-tables -target
-cpu x86-64 -coverage-file /usr/obj/usr/src/lib/clang/libllvmscalaropts/Reassociate.o -resource-dir /usr/obj/usr/src/tmp/usr/bin/../lib/clang/3.4.1 -D L
LVM_ON_UNIX -D LLVM_ON_FREEBSD -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -D NDEBUG -D CLANG_ENABLE_ARCMT -D CLANG_ENABLE_REWRITER -D CLANG_ENABLE
_STATIC_ANALYZER -D LLVM_DEFAULT_TARGET_TRIPLE="x86_64-unknown-freebsd10.1" -D LLVM_HOST_TRIPLE="x86_64-unknown-freebsd10.1" -D DEFAULT_SYSROOT="" -I /u
sr/src/lib/clang/libllvmscalaropts/../../../contrib/llvm/include -I /usr/src/lib/clang/libllvmscalaropts/../../../contrib/llvm/tools/clang/include -I /u
sr/src/lib/clang/libllvmscalaropts/../../../contrib/llvm/lib/Transforms/Scalar -I . -I /usr/src/lib/clang/libllvmscalaropts/../../../contrib/llvm/../../
lib/clang/include -isysroot /usr/obj/usr/src/tmp -internal-isystem /usr/obj/usr/src/tmp/usr/include/c++/v1 -O2 -Wno-c++11-extensions -fdeprecated-macro 
-fdebug-compilation-dir /usr/obj/usr/src/lib/clang/libllvmscalaropts -ferror-limit 19 -fmessage-length 168 -stack-protector 1 -mstackrealign -fno-rtti -fobjc-runtime=gnustep -fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp -o Reassociate.o -x c++ /usr/src/lib/clang/libllvmscalaropts/../../../contrib/llvm/lib/Transforms/Scalar/Reassociate.cpp 
1.      /usr/obj/usr/src/tmp/usr/include/c++/v1/type_traits:1113:1 <Spelling=/usr/obj/usr/src/tmp/usr/include/c++/v1/type_traits:1113:40>: current parser token '0x4000'
2.      /usr/obj/usr/src/tmp/usr/include/c++/v1/type_traits:209:1 <Spelling=/usr/obj/usr/src/tmp/usr/include/c++/v1/__config:339:37>: parsing namespace 
'std'
3.      /usr/obj/usr/src/tmp/usr/include/c++/v1/type_traits:209:1 <Spelling=/usr/obj/usr/src/tmp/usr/include/c++/v1/__config:339:59>: parsing namespace 
'__1'
clang++: error: unable to execute command: Segmentation fault (core dumped)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
Target: x86_64-unknown-freebsd10.1
Thread model: posix
clang++: note: diagnostic msg: PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include the crash backtrace, preprocessed source, and 
associated run script.
clang++: note: diagnostic msg: Error generating preprocessed source(s).
*** Error code 254

Stop.
make[6]: stopped in /usr/src/lib/clang/libllvmscalaropts

I have “make clean”ed. I am using a straight “make buildworld”, no -j options. make.conf contains:

TOP_TABLE_SIZE=197
NO_I4B=YES
NO_PROFILE=YES

The machine only has 1GB of RAM (but plenty of swap space) and in Intel Atom 230 (1.6GHz) CPU. I don’t know if the root cause s a clang bug, as it suggests, or something else wrong.

Thanks,

Andrew