[Bug target/59683] New: ICE: in classify_argument, at config/i386/i386.c:6637 with #pragma GCC target("avx512f")

["zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59683

            Bug ID: 59683
           Summary: ICE: in classify_argument, at config/i386/i386.c:6637
                    with #pragma GCC target("avx512f")
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 31571
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31571&action=edit
reduced testcase

Compiler output:
$ gcc testcase.c         
testcase.c: In function 'bar':
testcase.c:16:1: internal compiler error: in classify_argument, at
config/i386/i386.c:6637
 {
 ^
0xddb0be classify_argument
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.c:6637
0xddb0d9 examine_argument
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.c:6660
0xde676a return_in_memory_64
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.c:7903
0xde676a ix86_return_in_memory
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.c:7935
0x8d83f4 aggregate_value_p(tree_node const*, tree_node const*)
        /mnt/svn/gcc-trunk/gcc/function.c:2047
0x8df017 allocate_struct_function(tree_node*, bool)
        /mnt/svn/gcc-trunk/gcc/function.c:4523
0x62a67f store_parm_decls()
        /mnt/svn/gcc-trunk/gcc/c/c-decl.c:8454
0x6814ac c_parser_declaration_or_fndef
        /mnt/svn/gcc-trunk/gcc/c/c-parser.c:1914
0x684d64 c_parser_external_declaration
        /mnt/svn/gcc-trunk/gcc/c/c-parser.c:1399
0x685699 c_parser_translation_unit
        /mnt/svn/gcc-trunk/gcc/c/c-parser.c:1286
0x685699 c_parse_file()
        /mnt/svn/gcc-trunk/gcc/c/c-parser.c:14017
0x6d6fb3 c_common_parse_file()
        /mnt/svn/gcc-trunk/gcc/c-family/c-opts.c:1060
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-206332-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-206332-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20140104 (experimental) (GCC)