------- Comment #3 from steven at gcc dot gnu dot org 2006-06-24 13:50 -------
We ICE in fold-const.c line 1691 (r114961):
= const_binop (PLUS_EXPR,
const_binop (MULT_EXPR, r2, r2, notrunc),
const_binop (MULT_EXPR, i2, i2, notrunc),
notrunc);
This happens because const_binop (MULT_EXPR, r2, r2, notrunc) returns
NULL_TREE. The input argument r2 is 0.0:
Breakpoint 3, const_binop (code=RDIV_EXPR, arg1=0x2aaaaaffafc0,
arg2=0x2aaaaaffaf90, notrunc=0)
at fold-const.c:1691
1691 notrunc);
(gdb) step
const_binop (code=MULT_EXPR, arg1=0x2aaaaaf2e5c8, arg2=0x2aaaaaf2e5c8,
notrunc=0)
at fold-const.c:1554
1554 STRIP_NOPS (arg1);
(gdb) p debug_tree(arg1)
<real_cst 0x2aaaaaf2e5c8
type <real_type 0x2aaaaaf45210 real4 SF
size <integer_cst 0x2aaaaaf29540 constant invariant 32>
unit size <integer_cst 0x2aaaaaf29060 constant invariant 4>
align 32 symtab 0 alias set -1 precision 32
pointer_to_this <pointer_type 0x2aaaaaf45420>>
constant invariant 0.0>
$17 = void
(gdb) p debug_tree(arg2)
<real_cst 0x2aaaaaf2e5c8
type <real_type 0x2aaaaaf45210 real4 SF
size <integer_cst 0x2aaaaaf29540 constant invariant 32>
unit size <integer_cst 0x2aaaaaf29060 constant invariant 4>
align 32 symtab 0 alias set -1 precision 32
pointer_to_this <pointer_type 0x2aaaaaf45420>>
constant invariant 0.0>
$18 = void
(gdb)
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |steven at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2006-06-24 11:37:02 |2006-06-24 13:50:09
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28151
