https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62075
Bug ID: 62075
Summary: [4.8/4.9/4.10 Regression] Vectorizer ICE on dolphin
Product: gcc
Version: 4.9.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
int a[16][2];
struct A
{
int b[16][2];
int c[16][1];
};
void
foo (struct A *x)
{
int i;
for (i = 0; i < 16; ++i)
{
x->b[i][0] = a[i][0];
x->c[i][0] = 0 != a[i][0];
x->b[i][1] = a[i][1];
}
}
ICEs at -O3, starting with r180057 (before that we wouldn't attempt to
vectorize it):
rh1127840-a.ii: In function ‘foo’:
rh1127840-a.ii:9:1: internal compiler error: in vect_get_vec_def_for_operand,
at tree-vect-stmts.c:1451
foo (struct A *x)
^
0xe10dc5 vect_get_vec_def_for_operand(tree_node*, gimple_statement_base*,
tree_node**)
../../gcc/tree-vect-stmts.c:1451
0xe22228 vectorizable_condition(gimple_statement_base*, gimple_stmt_iterator*,
gimple_statement_base**, tree_node*, int, _slp_tree*)
../../gcc/tree-vect-stmts.c:6818
0xe237d1 vect_transform_stmt(gimple_statement_base*, gimple_stmt_iterator*,
bool*, _slp_tree*, _slp_instance*)
../../gcc/tree-vect-stmts.c:7228
0xe37c22 vect_transform_loop(_loop_vec_info*)
../../gcc/tree-vect-loop.c:6079
0xe4c8fb vectorize_loops()
../../gcc/tree-vectorizer.c:478
0xd5086b execute
../../gcc/tree-ssa-loop.c:232
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
