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[Bug tree-optimization/32145] [pointer_plus] Ice in build2_stat, at tree.c:3074
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 May 2007 19:49:11 -0000
- Subject: [Bug tree-optimization/32145] [pointer_plus] Ice in build2_stat, at tree.c:3074
- References: <bug-32145-14137@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from pinskia at gcc dot gnu dot org 2007-05-29 19:49 -------
I have a fix, just getting a reduced testcase (the ICE comes from VRP).
The fix is:
Index: ../../gcc/tree-vrp.c
===================================================================
--- ../../gcc/tree-vrp.c (revision 125036)
+++ ../../gcc/tree-vrp.c (working copy)
@@ -1482,10 +1482,14 @@ extract_range_from_assert (value_range_t
}
max = negative_overflow_infinity (TREE_TYPE (var_vr->min));
}
- else
+ else if (!POINTER_TYPE_P (TREE_TYPE (var_vr->min)))
max = fold_build2 (MINUS_EXPR, TREE_TYPE (var_vr->min),
anti_min,
build_int_cst (TREE_TYPE (var_vr->min), 1));
+ else
+ max = fold_build2 (POINTER_PLUS_EXPR, TREE_TYPE (var_vr->min),
+ anti_min,
+ size_int (-1));
min = real_min;
set_value_range (vr_p, VR_RANGE, min, max, vr_p->equiv);
}
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |pinskia at gcc dot gnu dot
|dot org |org
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
GCC host triplet|i686-gnu-linux |
GCC target triplet| |i686-gnu-linux
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2007-05-29 19:49:11
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32145