After this patch:
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140660
Building bzip2 with peak flags AND -mcpu=power4 for ppc (-O3 -mcpu=power4
-ffast-math -funroll-loops -ftree-loop-linear -fpeel-loops) started ICE'ing.
Here is the backtrace:
#0 0x103a2c3c in gimple_bb (g=0x4) at
/home/luis/src/gcc/HEAD/gcc/gimple.h:1071
#1 0x103a2b80 in gsi_start (seq=0xf76882b0) at
/home/luis/src/gcc/HEAD/gcc/gimple.h:4298
#2 0x103a5a48 in gsi_start_phis (bb=0xf7664b40) at
/home/luis/src/gcc/HEAD/gcc/gimple-iterator.c:770
#3 0x105e601c in verify_stmts () at
/home/luis/src/gcc/HEAD/gcc/tree-cfg.c:4177
#4 0x107e80cc in verify_ssa (check_modified_stmt=1 '\001') at
/home/luis/src/gcc/HEAD/gcc/tree-ssa.c:750
#5 0x10476c30 in execute_function_todo (data=0x4043) at
/home/luis/src/gcc/HEAD/gcc/passes.c:999
#6 0x1047657c in do_per_function (callback=0x10476898 <execute_function_todo>,
data=0x4043) at /home/luis/src/gcc/HEAD/gcc/passes.c:841
#7 0x10476d38 in execute_todo (flags=16451) at
/home/luis/src/gcc/HEAD/gcc/passes.c:1025
#8 0x10477c54 in execute_one_pass (pass=0x10eeabd4) at
/home/luis/src/gcc/HEAD/gcc/passes.c:1301
#9 0x10477ec4 in execute_pass_list (pass=0x10eeabd4) at
/home/luis/src/gcc/HEAD/gcc/passes.c:1327
#10 0x10477ef0 in execute_pass_list (pass=0x10eeaa9c) at
/home/luis/src/gcc/HEAD/gcc/passes.c:1328
#11 0x10477ef0 in execute_pass_list (pass=0x10eea494) at
/home/luis/src/gcc/HEAD/gcc/passes.c:1328
#12 0x106656a8 in tree_rest_of_compilation (fndecl=0xf7e74180) at
/home/luis/src/gcc/HEAD/gcc/tree-optimize.c:418
#13 0x10930d78 in cgraph_expand_function (node=0xf7e78300) at
/home/luis/src/gcc/HEAD/gcc/cgraphunit.c:1038
#14 0x10930fe0 in cgraph_expand_all_functions () at
/home/luis/src/gcc/HEAD/gcc/cgraphunit.c:1097
#15 0x109317a8 in cgraph_optimize () at
/home/luis/src/gcc/HEAD/gcc/cgraphunit.c:1302
#16 0x10033998 in c_write_global_declarations () at
/home/luis/src/gcc/HEAD/gcc/c-decl.c:8073
#17 0x105c9624 in compile_file () at /home/luis/src/gcc/HEAD/gcc/toplev.c:979
#18 0x105cc214 in do_compile () at /home/luis/src/gcc/HEAD/gcc/toplev.c:2190
#19 0x105cc2a8 in toplev_main (argc=30, argv=0xff880e44) at
/home/luis/src/gcc/HEAD/gcc/toplev.c:2222
#20 0x100f90fc in main (argc=30, argv=0xff880e44) at
/home/luis/src/gcc/HEAD/gcc/main.c:35
The failing line is "return g->gsbase.bb;", because "g" isn't really a valid
pointer:
(gdb) p g
$1 = (const_gimple) 0x4
--
Summary: Building of CPU2000's bzip2 with peak flags with -
mcpu=power4 fails with an ICE.
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: luisgpm at linux dot vnet dot ibm dot com
GCC build triplet: powerpc*-*-*
GCC host triplet: powerpc*-*-*
GCC target triplet: powerpc*-*-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37686
