https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68146
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-10-29
CC| |rguenth at gcc dot gnu.org,
| |rsandifo at gcc dot gnu.org
Component|fortran |middle-end
Target Milestone|--- |6.0
Summary|ice in |[6 Regression] ice in
|gimple_stmt_nonnegative_war |gimple_stmt_nonnegative_war
|nv_p with -O2 |nv_p with -O2
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
We enter
12877 return (!name_registered_for_update_p (t)
12878 && depth < PARAM_VALUE (PARAM_MAX_SSA_NAME_QUERY_DEPTH)
12879 && gimple_stmt_nonnegative_warnv_p (SSA_NAME_DEF_STMT
(t),
12880 strict_overflow_p,
depth));
with a released SSA name (TREE_TYPE == NULL)
#0 0x0000000000b38160 in gimple_code (g=0x0)
at /space/rguenther/src/svn/trunk/gcc/gimple.h:1661
#1 0x0000000000b4d90d in gimple_stmt_nonnegative_warnv_p (stmt=<gimple 0x0>,
strict_overflow_p=0x7fffffffd5ae, depth=1)
at /space/rguenther/src/svn/trunk/gcc/gimple-fold.c:6260
#2 0x0000000000af455b in tree_single_nonnegative_warnv_p (
t=<ssa_name 0x7ffff52dbbd0>, strict_overflow_p=0x7fffffffd5ae, depth=1)
at /space/rguenther/src/svn/trunk/gcc/fold-const.c:12880
#3 0x0000000000b4d8bf in gimple_phi_nonnegative_warnv_p (stmt=
<gimple_phi 0x7ffff58a0600>, strict_overflow_p=0x7fffffffd5ae, depth=0)
at /space/rguenther/src/svn/trunk/gcc/gimple-fold.c:6245
#4 0x0000000000b4d962 in gimple_stmt_nonnegative_warnv_p (
stmt=<gimple_phi 0x7ffff58a0600>, strict_overflow_p=0x7fffffffd5ae,
depth=0) at /space/rguenther/src/svn/trunk/gcc/gimple-fold.c:6270
#5 0x0000000000af455b in tree_single_nonnegative_warnv_p (
t=<ssa_name 0x7ffff52dbb40>, strict_overflow_p=0x7fffffffd5ae, depth=0)
at /space/rguenther/src/svn/trunk/gcc/fold-const.c:12880
#6 0x0000000000af5176 in tree_expr_nonnegative_warnv_p (
t=<ssa_name 0x7ffff52dbb40>, strict_overflow_p=0x7fffffffd5ae, depth=0)
at /space/rguenther/src/svn/trunk/gcc/fold-const.c:13146
#7 0x0000000000af51bf in tree_expr_nonnegative_p (t=<ssa_name 0x7ffff52dbb40>)
at /space/rguenther/src/svn/trunk/gcc/fold-const.c:13162
#8 0x000000000133c63a in generic_simplify_ABS_EXPR (loc=2147488880,
code=ABS_EXPR, type=<real_type 0x7ffff68e55e8 real(kind=8)>,
op0=<ssa_name 0x7ffff52dbb40>) at generic-match.c:7996
#9 0x0000000001346b58 in generic_simplify (loc=2147488880, code=ABS_EXPR,
type=<real_type 0x7ffff68e55e8 real(kind=8)>,
op0=<ssa_name 0x7ffff52dbb40>) at generic-match.c:10127
#10 0x0000000000adc246 in fold_unary_loc (loc=2147488880, code=ABS_EXPR,
type=<real_type 0x7ffff68e55e8 real(kind=8)>,
op0=<ssa_name 0x7ffff52dbb40>)
at /space/rguenther/src/svn/trunk/gcc/fold-const.c:7596
#11 0x0000000000af2ad8 in fold_build1_stat_loc (loc=2147488880, code=ABS_EXPR,
type=<real_type 0x7ffff68e55e8 real(kind=8)>,
op0=<ssa_name 0x7ffff52dbb40>)
at /space/rguenther/src/svn/trunk/gcc/fold-const.c:12267
#12 0x0000000000eb1ec6 in gimplify_build1 (gsi=0x7fffffffdad0, code=ABS_EXPR,
type=<real_type 0x7ffff68e55e8 real(kind=8)>, a=<ssa_name 0x7ffff52dbb40>)
at /space/rguenther/src/svn/trunk/gcc/tree-cfg.c:8541
#13 0x0000000000ebd3b4 in expand_complex_div_wide (gsi=0x7fffffffdad0,
inner_type=<real_type 0x7ffff68e55e8 real(kind=8)>,
ar=<ssa_name 0x7ffff52ded80>, ai=<ssa_name 0x7ffff52deea0>,
br=<ssa_name 0x7ffff52dbb40>, bi=<ssa_name 0x7ffff52dbb88>, code=RDIV_EXPR)
at /space/rguenther/src/svn/trunk/gcc/tree-complex.c:1126
