[Bug middle-end/31959] New: [4.3 Regression] ICE in expand_builtin_expect, at builtins.c:5112

[Bug middle-end/31959] New: [4.3 Regression] ICE in expand_builtin_expect, at builtins.c:5112

[tbm at cyrius dot com]

4.3 ICEs during error recovery.  This doesn't happen with 4.2.

(sid)24008:tbm@em64t: ~] /usr/lib/gcc-snapshot/bin/gcc -c -O2 -Werror btree.c
cc1: warnings being treated as errors
btree.c: In function 'bt_deref':
btree.c:20: error: passing argument 1 of 'vbt_deref' discards qualifiers from
pointer target type
btree.c: In function 'btree_fetch':
btree.c:26: internal compiler error: in expand_builtin_expect, at
builtins.c:5112


-- 
           Summary: [4.3 Regression] ICE in expand_builtin_expect, at
                    builtins.c:5112
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31959

[Bug middle-end/31959] [4.3 Regression] ICE in expand_builtin_expect, at builtins.c:5112

[tbm at cyrius dot com]

------- Comment #1 from tbm at cyrius dot com  2007-05-16 16:58 -------
struct btree_priv *area;
typedef struct bt_node_t
{
  int next;
  int used;
}
bt_leaf_t;
typedef union bt_page_t
{
  bt_leaf_t leaf;
}
bt_page_t;
static inline bt_page_t *
vbt_deref (struct btree_priv *bt)
{
}
static inline bt_page_t *
bt_deref (const struct btree_priv *bt)
{
  return vbt_deref ((struct btree_priv *) bt);
}
btree_fetch (struct btree_priv *area)
{
  int pos;
  const bt_leaf_t *leaf;
      if (__builtin_expect ((pos + 1 >= leaf->used), 0))
        {
          leaf = &bt_deref (area)->leaf;
        }
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31959

[Bug middle-end/31959] [4.3 Regression] ICE in expand_builtin_expect, at builtins.c:5112

[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=31959

[Bug middle-end/31959] [4.3 Regression] ICE in expand_builtin_expect, at builtins.c:5112

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-06-11 23:11 -------
Part of the problem is PR 29478 which causes this warning/error to show up.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |29478


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31959

[Bug middle-end/31959] [4.3 Regression] ICE in expand_builtin_expect, at builtins.c:5112

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-06-11 23:13 -------
Maybe the assert should be changed to check error count.
  /* When guessing was done, the hints should be already stripped away.  */
  gcc_assert (!flag_guess_branch_prob);


-- 

pinskia 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         |2007-06-11 23:13:07
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31959

[Bug middle-end/31959] [4.3 Regression] ICE in expand_builtin_expect, at builtins.c:5112

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2007-06-20 06:40 -------
Subject: Bug 31959

Author: jakub
Date: Wed Jun 20 06:39:53 2007
New Revision: 125875

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125875
Log:
        PR middle-end/31959
        * builtins.c: Include diagnostic.h.
        (expand_builtin_expect): Make gcc_assert more permissive.
        * Makefile.in (builtins.o): Depend on $(DIAGNOSTIC_H).

        * gcc.dg/pr31959.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr31959.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/builtins.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31959

[Bug middle-end/31959] [4.3 Regression] ICE in expand_builtin_expect, at builtins.c:5112

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2007-06-20 09:48 -------
Fixed.


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31959