diff options
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr113205.c | 19 | ||||
| -rw-r--r-- | gcc/tree-vect-slp.cc | 4 |
2 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/pr113205.c b/gcc/testsuite/gcc.dg/torture/pr113205.c new file mode 100644 index 0000000..edfba7f --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr113205.c @@ -0,0 +1,19 @@ +char a; +char *b, *c; +int d, e, f, g, h; +int *i; + +void +foo (void) +{ + unsigned p; + d = i[0]; + e = i[1]; + f = i[2]; + g = i[3]; + p = d * b[0]; + p += f * c[h]; + p += e * b[h]; + p += g * c[h]; + a = (p + 8000) >> (__SIZEOF_INT__ * __CHAR_BIT__ / 2); +} diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index 7cf9504..895f4f7 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -5034,6 +5034,10 @@ vect_optimize_slp_pass::forward_cost (graph_edge *ud, unsigned int from_node_i, cost.split (from_partition.out_degree); cost.add_serial_cost (edge_cost); } + else if (from_partition.layout == 0) + /* We must allow the source partition to have layout 0 as a fallback, + in case all other options turn out to be impossible. */ + return cost; /* Take the minimum of that cost and the cost that applies if FROM_PARTITION instead switches to TO_LAYOUT_I. */ |