[LLVMdev] Fail to compile LLVM on Gentoo Linux

[Duncan Sands]

Hi Sergey,

> This is a known gcc bug
> (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53670). GCC 4.5 can't
> compile clang 3.1

are you sure?  I built the LLVM/clang-3.1 release binaries for ubuntu 64 bits
using gcc-4.5.

Ciao, Duncan.

>
> On 13 September 2012 06:53, 陳韋任 (Wei-Ren Chen) <chenwj at iis.sinica.edu.tw> wrote:
>> Hi all,
>>
>>    I think it's Gentoo's bug, but I want to know if anyone has the same
>> issue here. I am compiling LLVM trunk on Gentoo (gcc 4.5.2), and I get
>> error message below,
>>
>> ---
>> make[4]: Entering directory `/nfs_home/chenwj/llvm-3.1/svn/build/tools/clang/lib/Frontend'
>> llvm[4]: Compiling InitHeaderSearch.cpp for Release+Asserts build
>> /nfs_home/chenwj/llvm-3.1/svn/llvm/tools/clang/lib/Frontend/InitHeaderSearch.cpp: In member function 'void<unnamed>::InitHeaderSearch::AddMinGWCPlusPlusIncludePaths(llvm::StringRef, llvm::StringRef, llvm::StringRef)':
>> /nfs_home/chenwj/llvm-3.1/svn/llvm/tools/clang/lib/Frontend/InitHeaderSearch.cpp:197:1: error: unrecognizable insn:
>> (insn 318 317 46 2 /nfs_home/chenwj/llvm-3.1/svn/llvm/include/llvm/ADT/Twine.h:181 (set (reg:DI 23 xmm2)
>>          (plus:DI (reg:DI 23 xmm2)
>>              (mem/u/c/i:DI (symbol_ref/u:DI ("*.LC22") [flags 0x2]) [0 S8 A64]))) -1 (expr_list:REG_EQUIV (plus:DI (reg/f:DI 7 sp)
>>              (mem/u/c/i:DI (symbol_ref/u:DI ("*.LC22") [flags 0x2]) [0 S8 A64]))
>>          (nil)))
>> /nfs_home/chenwj/llvm-3.1/svn/llvm/tools/clang/lib/Frontend/InitHeaderSearch.cpp:197:1: internal compiler error: in extract_insn, at recog.c:2103
>> Please submit a full bug report,
>> with preprocessed source if appropriate.
>> See <http://bugs.gentoo.org/> for instructions.
>> ---
>>
>>    Thanks.
>>
>> Regards,
>> chenwj
>>
>> --
>> Wei-Ren Chen (陳韋任)
>> Computer Systems Lab, Institute of Information Science,
>> Academia Sinica, Taiwan (R.O.C.)
>> Tel:886-2-2788-3799 #1667
>> Homepage: http://people.cs.nctu.edu.tw/~chenwj
>>
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