[Bug tree-optimization/31611] New: ICE in remove_referenced_var for loc == *0

[Bug tree-optimization/31611] New: ICE in remove_referenced_var for loc == *0

[aldot at gcc dot gnu dot org]

trunk, revision 123843 gives for -ftree-loop-linear:

Program received signal SIGSEGV, Segmentation fault.
0x082dfc97 in remove_referenced_var (var=0xb7ca961c)
    at ../../../src/gcc-4.3/gcc/tree-dfa.c:791
791       ggc_free (*loc);
(gdb) bt  
#0  0x082dfc97 in remove_referenced_var (var=0xb7ca961c)
    at ../../../src/gcc-4.3/gcc/tree-dfa.c:791
#1  0x0833535a in remove_unused_locals ()
    at ../../../src/gcc-4.3/gcc/tree-ssa-live.c:518
#2  0x08222641 in execute_function_todo (data=0x21)
    at ../../../src/gcc-4.3/gcc/passes.c:865
#3  0x08222387 in do_per_function (callback=0x8222554 <execute_function_todo>, 
    data=0x21) at ../../../src/gcc-4.3/gcc/passes.c:757
#4  0x08222818 in execute_todo (flags=33)
    at ../../../src/gcc-4.3/gcc/passes.c:935
#5  0x08222bb3 in execute_one_pass (pass=0x871f840)
    at ../../../src/gcc-4.3/gcc/passes.c:1080
#6  0x08222c35 in execute_pass_list (pass=0x871f840)
    at ../../../src/gcc-4.3/gcc/passes.c:1110
#7  0x08222c51 in execute_pass_list (pass=0x871f4c0)
    at ../../../src/gcc-4.3/gcc/passes.c:1111
#8  0x08222c51 in execute_pass_list (pass=0x871ed40)
    at ../../../src/gcc-4.3/gcc/passes.c:1111
#9  0x082f9da4 in tree_rest_of_compilation (fndecl=0xb7c619f8)
    at ../../../src/gcc-4.3/gcc/tree-optimize.c:412
#10 0x080bc124 in gfc_expand_function (fndecl=0xb7c619f8)
    at ../../../src/gcc-4.3/gcc/fortran/f95-lang.c:237
#11 0x083eef01 in cgraph_expand_function (node=0xb7bf8700)
    at ../../../src/gcc-4.3/gcc/cgraphunit.c:1016
#12 0x083ef0b1 in cgraph_expand_all_functions ()
    at ../../../src/gcc-4.3/gcc/cgraphunit.c:1085
#13 0x083ef62e in cgraph_optimize ()
    at ../../../src/gcc-4.3/gcc/cgraphunit.c:1288
#14 0x080bc2a3 in gfc_be_parse_file (set_yydebug=0)
    at ../../../src/gcc-4.3/gcc/fortran/f95-lang.c:309
#15 0x082b8f9c in compile_file () at ../../../src/gcc-4.3/gcc/toplev.c:1050
#16 0x082ba762 in do_compile () at ../../../src/gcc-4.3/gcc/toplev.c:2124
#17 0x082ba7c4 in toplev_main (argc=17, argv=0xbfc79d94)
    at ../../../src/gcc-4.3/gcc/toplev.c:2156
#18 0x080febc6 in main (argc=Cannot access memory at address 0x8
) at ../../../src/gcc-4.3/gcc/main.c:35
(gdb) p loc
$1 = (void **) 0x0


-- 
           Summary: ICE in remove_referenced_var for loc == *0
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: aldot at gcc dot gnu dot org
 GCC build triplet: i686-linux-gnu
  GCC host triplet: i686-linux-gnu
GCC target triplet: i686-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] ICE in remove_referenced_var for loc == *0

[aldot at gcc dot gnu dot org]

------- Comment #1 from aldot at gcc dot gnu dot org  2007-04-17 19:08 -------
Created an attachment (id=13381)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13381&action=view)
file1


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] ICE in remove_referenced_var for loc == *0

[aldot at gcc dot gnu dot org]

------- Comment #2 from aldot at gcc dot gnu dot org  2007-04-17 19:09 -------
Created an attachment (id=13382)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13382&action=view)
file2

$ gfortran-4.3-HEAD -ffixed-line-length-none -ffree-line-length-none -O1
-ftree-loop-linear -c lattice.f90
$ gfortran-4.3-HEAD -ffixed-line-length-none -ffree-line-length-none -O1
-ftree-loop-linear -c dyna.f90
dyna.f90: In function 'check':
dyna.f90:214: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] [4.3 regression] ICE with -ftree-loop-linear in remove_referenced_var for loc == *0

[aldot at gcc dot gnu dot org]

------- Comment #3 from aldot at gcc dot gnu dot org  2007-04-24 08:52 -------
Works with gcc version 4.2.0 20060922


-- 

aldot at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |4.3.0
            Summary|ICE in remove_referenced_var|[4.3 regression] ICE with -
                   |for loc == *0               |ftree-loop-linear in
                   |                            |remove_referenced_var for
                   |                            |loc == *0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] [4.3 regression] ICE with -ftree-loop-linear in remove_referenced_var for loc == *0

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2007-04-30 10:08 -------
Confirmed via 31762 (which has a single file testcase).


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-04-30 10:08:37
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] [4.3 regression] ICE with -ftree-loop-linear in remove_referenced_var for loc == *0

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2007-04-30 10:07 -------
*** Bug 31762 has been marked as a duplicate of this bug. ***


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jb at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] [4.3 regression] ICE with -ftree-loop-linear in remove_referenced_var for loc == *0

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2007-04-30 10:09 -------
Also related to PR31280.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |31280


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] [4.3 regression] ICE with -ftree-loop-linear in remove_referenced_var for loc == *0

[spop at gcc dot gnu dot org]

------- Comment #7 from spop at gcc dot gnu dot org  2007-06-22 08:49 -------
I cannot reproduce this bug on trunk rev.125915, on i686-linux.


-- 

spop at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |spop at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] [4.3 regression] ICE with -ftree-loop-linear in remove_referenced_var for loc == *0

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611

[Bug tree-optimization/31611] [4.3 regression] ICE with -ftree-loop-linear in remove_referenced_var for loc == *0

[mmitchel at gcc dot gnu dot org]

------- Comment #8 from mmitchel at gcc dot gnu dot org  2007-08-10 00:25 -------
Closed, as Sebastian says he cannot reproduce, and as Richard says there is
another testcase in PR31762.


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31611