[LLVMdev] Fail to compile LLVM on Gentoo Linux

[Sergey Galanov]

Hi.
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

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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