http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50781
Bug #: 50781
Summary: ICE: in expand_vec_perm_broadcast_1, at
config/i386/i386.c:35998 with -mavx and
__builtin_shuffle()
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 25549
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25549
reduced testcase (from gcc.dg/torture/vshuf-v4di.c)
Compiler output:
$ gcc -O -mavx testcase.c
testcase.c: In function 'foo':
testcase.c:4:6: internal compiler error: in expand_vec_perm_broadcast_1, at
config/i386/i386.c:35998
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
(gdb) bt
#0 fancy_abort (file=0x12c9de0 "/mnt/svn/gcc-trunk/gcc/config/i386/i386.c",
line=35998, function=0x12c6700 "expand_vec_perm_broadcast_1")
at /mnt/svn/gcc-trunk/gcc/diagnostic.c:898
#1 0x0000000000c064dd in expand_vec_perm_broadcast_1 (d=0x7fffffffd740) at
/mnt/svn/gcc-trunk/gcc/config/i386/i386.c:35998
#2 0x0000000000c0c6aa in expand_vec_perm_broadcast (d=0x7fffffffd740) at
/mnt/svn/gcc-trunk/gcc/config/i386/i386.c:36018
#3 ix86_expand_vec_perm_builtin_1 (d=0x7fffffffd740) at
/mnt/svn/gcc-trunk/gcc/config/i386/i386.c:36043
#4 0x0000000000c0ca6d in ix86_vectorize_builtin_vec_perm_ok
(vec_type=Unhandled dwarf expression opcode 0xf3
) at /mnt/svn/gcc-trunk/gcc/config/i386/i386.c:36323
#5 0x00000000008d0d8c in can_vec_perm_expr_p (type=0x7ffff56b25e8,
sel=0x7ffff56bc3c0) at /mnt/svn/gcc-trunk/gcc/optabs.c:6705
#6 0x0000000000b50fdd in lower_vec_perm () at
/mnt/svn/gcc-trunk/gcc/tree-vect-generic.c:644
#7 expand_vector_operations_1 () at
/mnt/svn/gcc-trunk/gcc/tree-vect-generic.c:743
#8 expand_vector_operations () at
/mnt/svn/gcc-trunk/gcc/tree-vect-generic.c:903
#9 0x00000000008e57f8 in execute_one_pass (pass=0x17a1a60) at
/mnt/svn/gcc-trunk/gcc/passes.c:2064
#10 0x00000000008e5b65 in execute_pass_list (pass=0x17a1a60) at
/mnt/svn/gcc-trunk/gcc/passes.c:2119
#11 0x00000000008e5b77 in execute_pass_list (pass=0x17a03e0) at
/mnt/svn/gcc-trunk/gcc/passes.c:2120
#12 0x0000000000a3cc9e in tree_rest_of_compilation (fndecl=0x7ffff56b1f00) at
/mnt/svn/gcc-trunk/gcc/tree-optimize.c:420
#13 0x000000000069430a in cgraph_expand_function (node=0x7ffff55886c0) at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1804
#14 0x000000000069625c in cgraph_expand_all_functions () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1871
#15 cgraph_optimize () at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:2148
#16 0x000000000069664a in cgraph_finalize_compilation_unit () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1312
#17 0x000000000057911b in c_write_global_declarations () at
/mnt/svn/gcc-trunk/gcc/c-decl.c:9940
#18 0x00000000009dabb4 in compile_file (argc=14, argv=0x7fffffffdaf8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:581
#19 do_compile (argc=14, argv=0x7fffffffdaf8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1930
#20 toplev_main (argc=14, argv=0x7fffffffdaf8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:2006
#21 0x00007ffff6178d2d in __libc_start_main () from /lib64/libc.so.6
#22 0x000000000055cc99 in _start ()
Tested revisions:
r180121 - crash
