[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
--- Comment #8 from pinskia at gcc dot gnu dot org 2007-09-10 21:56 --- Fixed so closing. Though there should be a testcase for this one committed. -- pinskia at gcc dot gnu dot org changed: What|Removed |Added CC||pinskia at gcc dot gnu dot ||org Status|WAITING |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
-- lauras at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|WAITING http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
--- Comment #7 from marcus at jet dot franken dot de 2007-09-10 05:50 --- with current SVN (r128305) it is build again. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
--- Comment #3 from rguenth at gcc dot gnu dot org 2007-09-08 12:45 --- Confirmed. Program received signal SIGSEGV, Segmentation fault. 0x0842837c in reload_as_needed (live_known=1) at /home/richard/src/trunk/gcc/reload1.c:4161 4161 if (p != insn INSN_P (p) (gdb) bt #0 0x0842837c in reload_as_needed (live_known=1) at /home/richard/src/trunk/gcc/reload1.c:4161 #1 0x08421375 in reload (first=0xb7cce680, global=1) at /home/richard/src/trunk/gcc/reload1.c:1146 #2 0x08910765 in global_alloc () at /home/richard/src/trunk/gcc/global.c:683 #3 0x08914e4f in rest_of_handle_global_alloc () at /home/richard/src/trunk/gcc/global.c:2055 (gdb) print p $1 = (rtx) 0x0 (gdb) call debug_rtx (insn) (insn 11 29 12 2 t.i:12 (parallel [ (set (reg/f:SI 0 ax [orig:63 variable.fn ] [63]) (asm_operands/v:SI (pushl %%ebp; pushl %3; movl %2,%%ebp; call *%%eax; popl %%ebp; popl %%ebp) (=a) 0 [ (reg/f:SI 0 ax [orig:63 variable.fn ] [63]) (reg:SI 4 si) (reg:SI 5 di) ] [ (asm_input:SI (0) () 0) (asm_input:SI (r) () 0) (asm_input:SI (r) () 0) ] (t.i) 12)) (clobber (reg:QI 18 fpsr)) (clobber (reg:QI 17 flags)) (clobber (mem:BLK (scratch) [0 A8])) (clobber (reg:QI 1 dx)) (clobber (reg:QI 2 cx)) ]) -1 (expr_list:REG_DEAD (reg/f:SI 5 di [64]) (expr_list:REG_UNUSED (reg/f:SI 0 ax [orig:63 variable.fn ] [63]) (expr_list:REG_UNUSED (reg:QI 18 fpsr) (expr_list:REG_UNUSED (reg:QI 17 flags) (expr_list:REG_UNUSED (reg:QI 2 cx) (expr_list:REG_UNUSED (reg:QI 1 dx) (nil I think this is because of the NEXT_INSN changes. 2007-09-05 Laurynas Biveinis [EMAIL PROTECTED] * regrename.c (copyprop_hardreg_forward_1): New variable next. Use FOR_BB_INSNS_SAFE instead of for loop. * cse.c (cse_extended_basic_block): Likewise. * postreload.c (reload_cse_regs_1): New variable next. Make sure that the for loop does not invoke NEXT_INSN on a deleted insn. ... -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||laurynas dot biveinis at ||gmail dot com Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 GCC build triplet|x86_64-unknown-linux-gnu| GCC host triplet|x86_64-unknown-linux-gnu| GCC target triplet|i586-unknown-linux-gnu |i?86-*-* Keywords||ice-on-valid-code Last reconfirmed|-00-00 00:00:00 |2007-09-08 12:45:26 date|| Summary|segfault in assembler |[4.3 Regression] segfault in |function|assembler function Target Milestone|--- |4.3.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
--- Comment #4 from lauras at gcc dot gnu dot org 2007-09-08 18:36 ---
It sure looks like it is caused by my patch. I will be able to take care of
that on Monday.
I think this change should fix it (completely untested): rewrite
for (p = NEXT_INSN (prev); p != next; p = NEXT_INSN (p))
if (p != insn INSN_P (p)
...
as
rtx next_p;
...
for (p = NEXT_INSN (prev); p != next; p = next_p)
{
next_p = NEXT_INSN (p);
if (p != insn INSN_P (p))
...
}
Sorry for the trouble.
--
lauras at gcc dot gnu dot org changed:
What|Removed |Added
AssignedTo|unassigned at gcc dot gnu |lauras at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2007-09-08 12:45:26 |2007-09-08 18:36:18
date||
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
--- Comment #5 from pinskia at gcc dot gnu dot org 2007-09-08 19:19 --- I think PR 33346 is the same issue. -- pinskia at gcc dot gnu dot org changed: What|Removed |Added OtherBugsDependingO||33346 nThis|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
[Bug middle-end/33351] [4.3 Regression] segfault in assembler function
--- Comment #6 from hp at gcc dot gnu dot org 2007-09-09 05:01 --- Please try after r128284. -- hp at gcc dot gnu dot org changed: What|Removed |Added CC||hp at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33351
