[Bug target/57098] New: ICE: in extract_insn, at recog.c:2154 (unrecognizable insn) with -mcmodel=large -msse4 and __builtin_shuffle()

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57098



             Bug #: 57098

           Summary: ICE: in extract_insn, at recog.c:2154 (unrecognizable

                    insn) with -mcmodel=large -msse4 and

                    __builtin_shuffle()

    Classification: Unclassified

           Product: gcc

           Version: 4.9.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: target

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: zso...@seznam.cz





Created attachment 29957

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29957

reduced testcase



Compiler output:

$ gcc -mcmodel=large -msse4 testcase.c

testcase.c: In function 'foo':

testcase.c:6:1: error: unrecognizable insn:

 }

 ^

(insn 19 18 20 2 (set (reg:V16QI 71)

        (unspec:V16QI [

                (reg:V16QI 71)

                (mem/u/c:V16QI (symbol_ref/u:DI ("*.LC1") [flags 0x2]) [0 S16

A128])

            ] UNSPEC_PSHUFB)) testcase.c:5 -1

     (nil))

testcase.c:6:1: internal compiler error: in extract_insn, at recog.c:2154

0x9b919a _fatal_insn(char const*, rtx_def const*, char const*, int, char

const*)

        /mnt/svn/gcc-trunk/gcc/rtl-error.c:109

0x9b922a _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)

        /mnt/svn/gcc-trunk/gcc/rtl-error.c:117

0x974fa1 extract_insn(rtx_def*)

        /mnt/svn/gcc-trunk/gcc/recog.c:2154

0x811c67 instantiate_virtual_regs_in_insn

        /mnt/svn/gcc-trunk/gcc/function.c:1561

0x811c67 instantiate_virtual_regs

        /mnt/svn/gcc-trunk/gcc/function.c:1926

Please submit a full bug report,

with preprocessed source if appropriate.

Please include the complete backtrace with any bug report.

See <http://gcc.gnu.org/bugs.html> for instructions.



$ gcc -v

Using built-in specs.

COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc

COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-198362-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper

Target: x86_64-unknown-linux-gnu

Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df

--enable-languages=c,c++,lto,fortran

--prefix=/mnt/svn/gcc-trunk/binary-198362-lto-fortran-checking-yes-rtl-df/

--without-cloog --without-ppl

Thread model: posix

gcc version 4.9.0 20130427 (experimental) (GCC) 



Tested revisions:

r198362 - crash

4.8 r198018 - crash

4.7 r198018 - crash

4.6 r198018 - doesn't recognise __builtin_shuffle()