https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84204
Bug ID: 84204
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-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-8.0.0-alpha20180204 snapshot (r257367) ICEs when compiling the following
snippet w/ -O1 (-O2, -O3, -Ofast) -floop-parallelize-all -fno-tree-loop-im
--param scev-max-expr-size=3:
int oc;
void
mo (int xd)
{
while (xd < 1)
{
for (oc = 0; oc < 2; ++oc)
{
}
++xd;
}
}
% gcc-8.0.0-alpha20180204 -O1 -floop-parallelize-all -fno-tree-loop-im --param
scev-max-expr-size=3 -c xknxs4ob.c
during GIMPLE pass: graphite
xknxs4ob.c: In function 'mo':
xknxs4ob.c:4:1: internal compiler error: in set_codegen_error, at
graphite-isl-ast-to-gimple.c:206
mo (int xd)
^~
0x722ef2 translate_isl_ast_to_gimple::set_codegen_error()
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:205
0x723140 translate_isl_ast_to_gimple::set_codegen_error()
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/tree.h:3246
0x723140 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_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:1101
0x1450cf9
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_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:1220
0x1451729
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_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:1269
0x1451ea1
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_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:829
0x1452065 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_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:622
0x1452339 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_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:750
0x1452065 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_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:622
0x1452339 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_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:750
0x145294c graphite_regenerate_ast_isl(scop*)
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/graphite-isl-ast-to-gimple.c:1504
0x144eaa3 graphite_transform_loops()
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/graphite.c:413
0x144efb0 graphite_transforms
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/graphite.c:475
0x144efb0 execute
/var/tmp/portage/sys-devel/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/graphite.c:552
