[LLVMbugs] [Bug 11392] New: clang needs more than 2GB RAM to compile ARMDisassembler.cpp

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=11392

             Bug #: 11392
           Summary: clang needs more than 2GB RAM to compile
                    ARMDisassembler.cpp
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: ismail at namtrac.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Compiling clang with ARM support requires more than 2GB RAM due to
ARMDisassembler.cpp , the building VM (which has 2GB RAM) goes out of memory:

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
Stack dump:
0.      Program arguments:
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/stage1/bin/clang-3.0 -cc1
-triple x86_64-unknown-linux-gnu -emit-obj -disable-free -main-file-name
ARMDisassembler.cpp -pic-level 2 -mdisable-fp-elim -masm-verbose
-mconstructor-aliases -munwind-tables -target-cpu x86-64
-momit-leaf-frame-pointer -g -coverage-file
CMakeFiles/LLVMARMDisassembler.dir/ARMDisassembler.cpp.o -resource-dir
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/stage1/bin/../lib/clang/3.0
-D _GNU_SOURCE -D NDEBUG -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D
__STDC_LIMIT_MACROS -I
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/stage2/lib/Target/ARM/Disassembler
-I
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/lib/Target/ARM/Disassembler
-I /home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/lib/Target/ARM -I
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/stage2/lib/Target/ARM -I
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/stage2/include -I
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/include -I
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/stage2/lib/Target/ARM/Disassembler/..
-I
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/lib/Target/ARM/Disassembler/..
-fmodule-cache-path /var/tmp/clang-module-cache -internal-isystem
/usr/lib64/gcc/x86_64-suse-linux/4.6/../../../../include/c++/4.6
-internal-isystem
/usr/lib64/gcc/x86_64-suse-linux/4.6/../../../../include/c++/4.6/x86_64-suse-linux
-internal-isystem
/usr/lib64/gcc/x86_64-suse-linux/4.6/../../../../include/c++/4.6/backward
-internal-isystem /usr/local/include -internal-isystem
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/stage1/bin/../lib/clang/3.0/include
-internal-externc-isystem /usr/include -O2 -Wall -W -Wno-unused-parameter
-Wwrite-strings -Wno-long-long -pedantic -fconst-strings -fdeprecated-macro
-ferror-limit 19 -fmessage-length 0 -fno-rtti -fgnu-runtime
-fobjc-runtime-has-arc -fobjc-runtime-has-weak -fobjc-fragile-abi
-fdiagnostics-show-option -o
CMakeFiles/LLVMARMDisassembler.dir/ARMDisassembler.cpp.o -x c++
/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
1.      <eof> parser at end of file
2.      Per-module optimization passes
3.      Running pass 'CallGraph Pass Manager' on module
'/home/abuild/rpmbuild/BUILD/llvm-2.9.99.svn20111106/lib/Target/ARM/Disassembler/ARMDisassembler.cpp'.
4.      Running pass 'Scalar Replacement of Aggregates (SSAUp)' on function
'@_ZN4llvmL27decodeNEONDataInstruction32ERNS_6MCInstEjmPKvRKNS_15MCSubtargetInfoE'
clang-3: error: unable to execute command: Aborted
clang-3: error: clang frontend command failed due to signal 2 (use -v to see
invocation)
clang-3: note: diagnostic msg: Please submit a bug report to  and include
command line arguments and all diagnostic information.
clang-3: note: diagnostic msg: Preprocessed source(s) are located at:
clang-3: note: diagnostic msg: /tmp/ARMDisassembler-w0Qd8e.ii
make[2]: ***
[lib/Target/ARM/Disassembler/CMakeFiles/LLVMARMDisassembler.dir/ARMDisassembler.cpp.o]
Error 254
make[1]: ***
[lib/Target/ARM/Disassembler/CMakeFiles/LLVMARMDisassembler.dir/all] Error 2
make: *** [all] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.POjuHk (%build)

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