[Bug middle-end/49628] [4.7 Regression] 447.dealII in SPEC CPU 2006 failed to build

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49628

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |UNCONFIRMED
   Target Milestone|4.7.0                       |---
     Ever Confirmed|1                           |0

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2011-07-04 14:01:54 UTC ---
Program received signal SIGFPE, Arithmetic exception.
0x000000000110149c in vector_alignment_reachable_p (dr=0x1960370)
    at ../../src/gcc/tree-vect-data-refs.c:1114
1114          if ((nelements - mis_in_elements) % GROUP_SIZE (stmt_info))
Missing separate debuginfos, use: debuginfo-install glibc-2.14-3.4.f15.x86_64
gmp-4.3.2-3.fc15.x86_64 libgcc-4.6.0-9.fc15.x86_64
libmpc-0.8.3-0.3.svn855.fc15.x86_64 libstdc++-4.6.0-9.fc15.x86_64
mpfr-3.0.0-4.fc15.x86_64 zlib-1.2.5-3.fc15.x86_64
(gdb) bt
#0  0x000000000110149c in vector_alignment_reachable_p (dr=0x1960370)
    at ../../src/gcc/tree-vect-data-refs.c:1114
#1  0x0000000001101e7b in vect_enhance_data_refs_alignment (
    loop_vinfo=0x1a3e750) at ../../src/gcc/tree-vect-data-refs.c:1505
#2  0x0000000000c373e7 in vect_analyze_loop_2 (loop_vinfo=0x1a3e750)
    at ../../src/gcc/tree-vect-loop.c:1554
#3  0x0000000000c375de in vect_analyze_loop (loop=0x7fffefe66550)
    at ../../src/gcc/tree-vect-loop.c:1627
#4  0x0000000000c53fae in vectorize_loops ()
    at ../../src/gcc/tree-vectorizer.c:199
#5  0x0000000000b7dc13 in tree_vectorize ()
    at ../../src/gcc/tree-ssa-loop.c:218
#6  0x00000000008f9f39 in execute_one_pass (pass=0x1737320)
    at ../../src/gcc/passes.c:2061
#7  0x00000000008fa11f in execute_pass_list (pass=0x1737320)
    at ../../src/gcc/passes.c:2116
#8  0x00000000008fa140 in execute_pass_list (pass=0x1737140)
    at ../../src/gcc/passes.c:2117
#9  0x00000000008fa140 in execute_pass_list (pass=0x1736840)
    at ../../src/gcc/passes.c:2117
#10 0x0000000000a92c3c in tree_rest_of_compilation (fndecl=0x7ffff0416100)
    at ../../src/gcc/tree-optimize.c:416
#11 0x000000000057a047 in cgraph_expand_function (node=0x7ffff030b360)
---Type <return> to continue, or q <return> to quit---
    at ../../src/gcc/cgraphunit.c:1792
#12 0x000000000057a206 in cgraph_expand_all_functions ()
    at ../../src/gcc/cgraphunit.c:1851
#13 0x000000000057a902 in cgraph_optimize () at ../../src/gcc/cgraphunit.c:2121
#14 0x00000000004af417 in lto_main () at ../../src/gcc/lto/lto.c:2800
#15 0x00000000009f006e in compile_file () at ../../src/gcc/toplev.c:548
#16 0x00000000009f22b3 in do_compile () at ../../src/gcc/toplev.c:1895
#17 0x00000000009f2419 in toplev_main (argc=20, argv=0x7fffffffe1d8)
    at ../../src/gcc/toplev.c:1967
#18 0x00000000004b21f0 in main (argc=20, argv=0x7fffffffe1d8)
    at ../../src/gcc/main.c:36
(gdb) p stmt_info->size
$3 = 0
(gdb)