https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84399
Bug ID: 84399
Summary: [8 Regression] [graphite] ICE in set_codegen_error, at
graphite-isl-ast-to-gimple.c:206
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
scev-max-expr-size once again.
gcc-8.0.0-alpha20180211 snapshot (r257571) ICEs when compiling the following
snippet w/ -O2 -floop-nest-optimize -fno-tree-loop-im --param
scev-max-expr-size=1:
void
h8 (int cv, int od)
{
for (;;)
{
int ih = &od;
if (cv == 0)
while (od < 1)
{
int lq;
for (lq = 0; lq < 3; ++lq)
for (ih = 0; ih < 4; ++ih)
od += lq;
}
while (ih < 1)
{
}
}
}
% gcc-8.0.0-alpha20180211 -O2 -floop-nest-optimize -fno-tree-loop-im --param
scev-max-expr-size=1 -w -c wucxhfnm.c
during GIMPLE pass: graphite
wucxhfnm.c: In function 'h8':
wucxhfnm.c:2:1: internal compiler error: in set_codegen_error, at
graphite-isl-ast-to-gimple.c:206
h8 (int cv, int od)
^~
0x7244e2 translate_isl_ast_to_gimple::set_codegen_error()
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:205
0x724730 translate_isl_ast_to_gimple::set_codegen_error()
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/tree.h:3246
0x724730 translate_isl_ast_to_gimple::get_rename_from_scev(tree_node*,
gimple**, loop*, vec<tree_node*, va_heap, vl_ptr>)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:1102
0x1457d59
translate_isl_ast_to_gimple::graphite_copy_stmts_from_block(basic_block_def*,
basic_block_def*, vec<tree_node*, va_heap, vl_ptr>)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:1221
0x1458749
translate_isl_ast_to_gimple::copy_bb_and_scalar_dependences(basic_block_def*,
edge_def*, vec<tree_node*, va_heap, vl_ptr>)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:1270
0x1458ec1
translate_isl_ast_to_gimple::translate_isl_ast_node_user(isl_ast_node*,
edge_def*, std::map<isl_id*, tree_node*, std::less<isl_id*>,
std::allocator<std::pair<isl_id* const, tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:830
0x1459085 translate_isl_ast_to_gimple::translate_isl_ast_for_loop(loop*,
isl_ast_node*, edge_def*, tree_node*, tree_node*, tree_node*, std::map<isl_id*,
tree_node*, std::less<isl_id*>, std::allocator<std::pair<isl_id* const,
tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:623
0x1459359 translate_isl_ast_to_gimple::translate_isl_ast_node_for(loop*,
isl_ast_node*, edge_def*, std::map<isl_id*, tree_node*, std::less<isl_id*>,
std::allocator<std::pair<isl_id* const, tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:751
0x1459584 translate_isl_ast_to_gimple::translate_isl_ast_node_block(loop*,
isl_ast_node*, edge_def*, std::map<isl_id*, tree_node*, std::less<isl_id*>,
std::allocator<std::pair<isl_id* const, tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:859
0x1459584 translate_isl_ast_to_gimple::translate_isl_ast_node_block(loop*,
isl_ast_node*, edge_def*, std::map<isl_id*, tree_node*, std::less<isl_id*>,
std::allocator<std::pair<isl_id* const, tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:859
0x1459584 translate_isl_ast_to_gimple::translate_isl_ast_node_block(loop*,
isl_ast_node*, edge_def*, std::map<isl_id*, tree_node*, std::less<isl_id*>,
std::allocator<std::pair<isl_id* const, tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:859
0x1459085 translate_isl_ast_to_gimple::translate_isl_ast_for_loop(loop*,
isl_ast_node*, edge_def*, tree_node*, tree_node*, tree_node*, std::map<isl_id*,
tree_node*, std::less<isl_id*>, std::allocator<std::pair<isl_id* const,
tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:623
0x1459359 translate_isl_ast_to_gimple::translate_isl_ast_node_for(loop*,
isl_ast_node*, edge_def*, std::map<isl_id*, tree_node*, std::less<isl_id*>,
std::allocator<std::pair<isl_id* const, tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:751
0x1459584 translate_isl_ast_to_gimple::translate_isl_ast_node_block(loop*,
isl_ast_node*, edge_def*, std::map<isl_id*, tree_node*, std::less<isl_id*>,
std::allocator<std::pair<isl_id* const, tree_node*> > >&)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:859
0x145996c graphite_regenerate_ast_isl(scop*)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite-isl-ast-to-gimple.c:1505
0x1455ac3 graphite_transform_loops()
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite.c:413
0x1455fd0 graphite_transforms
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite.c:475
0x1455fd0 execute
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180211/work/gcc-8-20180211/gcc/graphite.c:552
