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[Bug tree-optimization/39041] ICE on valid during vrp2
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Jan 2009 13:39:10 -0000
- Subject: [Bug tree-optimization/39041] ICE on valid during vrp2
- References: <bug-39041-10026@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from rguenth at gcc dot gnu dot org 2009-01-30 13:39 -------
Confirmed. There's a type mismatch in the substituted statement:
pretmp.27_29 = *&cpumask.bits[0]
arg 1 <indirect_ref 0x7ffff75267c0 type <integer_type 0x7ffff7e89540 int>
arg 0 <addr_expr 0x7ffff752a180 type <pointer_type 0x7ffff7f71f00>
constant invariant
arg 0 <array_ref 0x7ffff7514730 type <integer_type 0x7ffff7e89600
unsigned int>
arg 0 <component_ref 0x7ffff75147d0 type <array_type
0x7ffff7f71e40>
arg 0 <var_decl 0x7ffff7f3c8c0 cpumask> arg 1 <field_decl
0x7ffff7f3c820 bits>>
arg 1 <integer_cst 0x7ffff7e79c00 constant invariant 0>>>>>
we have int and unsigned int. The INDIRECT_REF has the wrong type.
forwprop causes this and creates
int * a;
...
a_15 = &cpumask.bits[D.1587_13];
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-01-30 13:39:10
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041