------- Comment #43 from pluto at agmk dot net 2005-11-26 11:57 -------
i've done quick tests on ix86:
$ stage1/xgcc -Bstage1/ -c -gnatpg -gnata -g -I- -I. -Iada
-I../../gcc/ada ../../gcc/ada/a-except.adb -o ada/a-except.o -fno-inline -O1
-march=i{486,586,686,pentium,pentiumpro}
WORKS.
but -march={athlon,pentium2,pentium3,pentium4} FAILS.
the i386 variant with -mmx option FAILS either.
$ stage1/xgcc -Bstage1/ -c -gnatpg -gnata -g -I- -I. -Iada -I../../gcc/ada
../../gcc/ada/a-except.adb -o ada/a-except.o -fno-inline -O1 -march=athlon
raised STORAGE_ERROR : stack overflow (or erroneous memory access)
Program received signal SIGSEGV, Segmentation fault.
0x0839c8c5 in insert_insn_on_edge ()
(gdb) bt
#0 0x0839c8c5 in insert_insn_on_edge ()
#1 0x085c5e6b in fixup_abnormal_edges ()
#2 0x0859b30f in convert_regs ()
#3 0x0859b684 in reg_to_stack ()
#4 0x0859b6bb in rest_of_handle_stack_regs ()
#5 0x0860dc88 in execute_one_pass ()
#6 0x0860dd47 in execute_pass_list ()
#7 0x0860dd67 in execute_pass_list ()
#8 0x0860dd67 in execute_pass_list ()
#9 0x08328868 in tree_rest_of_compilation ()
#10 0x0805e8d5 in gnat_expand_body ()
#11 0x08656a58 in cgraph_expand_function ()
#12 0x08656bed in cgraph_expand_all_functions ()
#13 0x08657109 in cgraph_optimize ()
#14 0x0805dd9e in gnat_parse_file ()
#15 0x085e68a4 in compile_file ()
#16 0x085e7f0d in do_compile ()
#17 0x085e7f75 in toplev_main ()
#18 0x0832472c in main ()
on amd64:
Program received signal SIGSEGV, Segmentation fault.
0x00000000007143a8 in insert_insn_on_edge (pattern=0x2a96415410, e=0x0)
at ../../gcc/cfgrtl.c:1412
1412 gcc_assert (!((e->flags & EDGE_ABNORMAL) && EDGE_CRITICAL_P (e)));
(gdb) bt
#0 0x00000000007143a8 in insert_insn_on_edge (pattern=0x2a96415410, e=0x0)
at ../../gcc/cfgrtl.c:1412
During symbol reading, Incomplete CFI data; unspecified registers
at 0x0000000000714398.
(...)
#1 0x00000000009acfed in fixup_abnormal_edges () at ../../gcc/reload1.c:8252
During symbol reading, Incomplete CFI data; unspecified registers at
0x00000000009acdb3.
(...)
#2 0x000000000097ef8d in convert_regs (file=0x0)
at ../../gcc/reg-stack.c:3097
#3 0x000000000097f328 in reg_to_stack (file=0x0)
at ../../gcc/reg-stack.c:3207
#4 0x000000000097f35f in rest_of_handle_stack_regs ()
at ../../gcc/reg-stack.c:3230
#5 0x0000000000a001ae in execute_one_pass (pass=0xee2360)
at ../../gcc/passes.c:828
#6 0x0000000000a0026d in execute_pass_list (pass=0xee2360)
at ../../gcc/passes.c:860
#7 0x0000000000a0028b in execute_pass_list (pass=0xee2b20)
at ../../gcc/passes.c:861
#8 0x0000000000a0028b in execute_pass_list (pass=0xee2ac0)
at ../../gcc/passes.c:861
#9 0x0000000000691057 in tree_rest_of_compilation (fndecl=0x2a95e1e500)
at ../../gcc/tree-optimize.c:419
#10 0x00000000004192de in gnat_expand_body (gnu_decl=0x2a95e1e500)
at ../../gcc/ada/misc.c:649
#11 0x0000000000a5774f in cgraph_expand_function (node=0x2a95ea1630)
at ../../gcc/cgraphunit.c:1055
#12 0x0000000000a57917 in cgraph_expand_all_functions ()
at ../../gcc/cgraphunit.c:1121
#13 0x0000000000a57ea3 in cgraph_optimize () at ../../gcc/cgraphunit.c:1278
#14 0x0000000000418612 in gnat_parse_file (set_yydebug=0)
at ../../gcc/ada/misc.c:245
#15 0x00000000009d2f2b in compile_file () at ../../gcc/toplev.c:990
#16 0x00000000009d4876 in do_compile () at ../../gcc/toplev.c:1948
#17 0x00000000009d48da in toplev_main (argc=19, argv=0x7fbffff508)
at ../../gcc/toplev.c:1980
#18 0x000000000068cbff in main (argc=19, argv=0x7fbffff508)
at ../../gcc/main.c:35
i'll check this witout Uros' switch-mmx-mode patchset.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22533
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