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* [Bug tree-optimization/97188] New: [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57
@ 2020-09-24  7:32 marxin at gcc dot gnu.org
  2020-09-24  7:33 ` [Bug tree-optimization/97188] " marxin at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-09-24  7:32 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97188

            Bug ID: 97188
           Summary: [11 Regression] ICE in c_tree_printer at
                    c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: msebor at gcc dot gnu.org
  Target Milestone: ---

The following ICEs:

$ void function(short width, int[][width]);
void test() { function(1, 0); }

$ gcc vla.c -Wnonnull -c

during RTL pass: expand
In function ‘test’:
Segmentation fault
    2 | void test() { function(1, 0); }
      |               ^~~~~~~~~~~~~~
0xd9e6ff crash_signal
        /home/marxin/Programming/gcc/gcc/toplev.c:329
0x7ffff788652f ???
       
/usr/src/debug/glibc-2.31-6.3.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x8336e0 c_tree_printer
        /home/marxin/Programming/gcc/gcc/c/c-objc-common.c:314
0x8336e0 c_tree_printer
        /home/marxin/Programming/gcc/gcc/c/c-objc-common.c:254
0x188dccc pp_format(pretty_printer*, text_info*)
        /home/marxin/Programming/gcc/gcc/pretty-print.c:1475
0x1871bbe diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
        /home/marxin/Programming/gcc/gcc/diagnostic.c:1205
0x1874238 diagnostic_impl
        /home/marxin/Programming/gcc/gcc/diagnostic.c:1355
0x1874238 warning_at(unsigned int, int, char const*, ...)
        /home/marxin/Programming/gcc/gcc/diagnostic.c:1492
0x927455 maybe_warn_rdwr_sizes
        /home/marxin/Programming/gcc/gcc/calls.c:2038
0x928ad6 initialize_argument_information
        /home/marxin/Programming/gcc/gcc/calls.c:2531
0x928ad6 expand_call(tree_node*, rtx_def*, int)
        /home/marxin/Programming/gcc/gcc/calls.c:3926
0xa5ea2a expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /home/marxin/Programming/gcc/gcc/expr.c:11246
0x940259 expand_expr
        /home/marxin/Programming/gcc/gcc/expr.h:282
0x940259 expand_call_stmt
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:2703
0x940259 expand_gimple_stmt_1
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:3686
0x940259 expand_gimple_stmt
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:3851
0x94560a expand_gimple_basic_block
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:5892
0x9470b6 execute
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:6576
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/97188] [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57
  2020-09-24  7:32 [Bug tree-optimization/97188] New: [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57 marxin at gcc dot gnu.org
@ 2020-09-24  7:33 ` marxin at gcc dot gnu.org
  2020-09-24 17:21 ` msebor at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-09-24  7:33 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97188

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |11.0
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |10.2.0
      Known to fail|                            |11.0
   Last reconfirmed|                            |2020-09-24

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/97188] [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57
  2020-09-24  7:32 [Bug tree-optimization/97188] New: [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57 marxin at gcc dot gnu.org
  2020-09-24  7:33 ` [Bug tree-optimization/97188] " marxin at gcc dot gnu.org
@ 2020-09-24 17:21 ` msebor at gcc dot gnu.org
  2020-09-25  0:15 ` msebor at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-09-24 17:21 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97188

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |msebor at gcc dot gnu.org
             Status|NEW                         |ASSIGNED

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/97188] [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57
  2020-09-24  7:32 [Bug tree-optimization/97188] New: [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57 marxin at gcc dot gnu.org
  2020-09-24  7:33 ` [Bug tree-optimization/97188] " marxin at gcc dot gnu.org
  2020-09-24 17:21 ` msebor at gcc dot gnu.org
@ 2020-09-25  0:15 ` msebor at gcc dot gnu.org
  2020-09-29 23:14 ` cvs-commit at gcc dot gnu.org
  2020-09-29 23:16 ` [Bug tree-optimization/97188] [11 Regression] ICE passing a null VLA to a function expecting at least one element msebor at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-09-25  0:15 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97188

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch: https://gcc.gnu.org/pipermail/gcc-patches/2020-September/554784.html

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/97188] [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57
  2020-09-24  7:32 [Bug tree-optimization/97188] New: [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57 marxin at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2020-09-25  0:15 ` msebor at gcc dot gnu.org
@ 2020-09-29 23:14 ` cvs-commit at gcc dot gnu.org
  2020-09-29 23:16 ` [Bug tree-optimization/97188] [11 Regression] ICE passing a null VLA to a function expecting at least one element msebor at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-09-29 23:14 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97188

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>:

https://gcc.gnu.org/g:873f8c1e6df94a9dcbfbe69f06538e3e45ba151d

commit r11-3540-g873f8c1e6df94a9dcbfbe69f06538e3e45ba151d
Author: Martin Sebor <msebor@redhat.com>
Date:   Tue Sep 29 17:10:54 2020 -0600

    Correct and improve -Wnonnull for calls to functions with VLA arguments (PR
middle-end/97188).

    Resolves:
    PR middle-end/97188 - ICE passing a null VLA to a function expecting at
least one element

    gcc/ChangeLog:

            PR middle-end/97188
            * calls.c (maybe_warn_rdwr_sizes): Simplify warning messages.
            Correct handling of VLA argumments.

    gcc/testsuite/ChangeLog:

            PR middle-end/97188
            * gcc.dg/Wstringop-overflow-23.c: Adjust text of expected warnings.
            * gcc.dg/Wnonnull-4.c: New test.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/97188] [11 Regression] ICE passing a null VLA to a function expecting at least one element
  2020-09-24  7:32 [Bug tree-optimization/97188] New: [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57 marxin at gcc dot gnu.org
                   ` (3 preceding siblings ...)
  2020-09-29 23:14 ` cvs-commit at gcc dot gnu.org
@ 2020-09-29 23:16 ` msebor at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-09-29 23:16 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97188

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED
            Summary|[11 Regression] ICE in      |[11 Regression] ICE passing
                   |c_tree_printer at           |a null VLA to a function
                   |c/c-objc-common.c:314 since |expecting at least one
                   |r11-3303-g6450f07388f9fe57  |element

--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Fixed in r11-3540.

^ permalink raw reply	[flat|nested] 6+ messages in thread

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2020-09-24  7:32 [Bug tree-optimization/97188] New: [11 Regression] ICE in c_tree_printer at c/c-objc-common.c:314 since r11-3303-g6450f07388f9fe57 marxin at gcc dot gnu.org
2020-09-24  7:33 ` [Bug tree-optimization/97188] " marxin at gcc dot gnu.org
2020-09-24 17:21 ` msebor at gcc dot gnu.org
2020-09-25  0:15 ` msebor at gcc dot gnu.org
2020-09-29 23:14 ` cvs-commit at gcc dot gnu.org
2020-09-29 23:16 ` [Bug tree-optimization/97188] [11 Regression] ICE passing a null VLA to a function expecting at least one element msebor at gcc dot gnu.org

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