diff options
Diffstat (limited to 'gcc/tree-ssa-forwprop.c')
| -rw-r--r-- | gcc/tree-ssa-forwprop.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c index 74a54c3..41ee409 100644 --- a/gcc/tree-ssa-forwprop.c +++ b/gcc/tree-ssa-forwprop.c @@ -1781,7 +1781,7 @@ simplify_bitfield_ref (gimple_stmt_iterator *gsi) gimple *def_stmt; tree op, op0, op1, op2; tree elem_type; - unsigned idx, n, size; + unsigned idx, size; enum tree_code code; op = gimple_assign_rhs1 (stmt); @@ -1816,12 +1816,11 @@ simplify_bitfield_ref (gimple_stmt_iterator *gsi) return false; size = TREE_INT_CST_LOW (TYPE_SIZE (elem_type)); - n = TREE_INT_CST_LOW (op1) / size; - if (n != 1) + if (maybe_ne (bit_field_size (op), size)) return false; - idx = TREE_INT_CST_LOW (op2) / size; - if (code == VEC_PERM_EXPR) + if (code == VEC_PERM_EXPR + && constant_multiple_p (bit_field_offset (op), size, &idx)) { tree p, m, tem; unsigned nelts; @@ -2074,9 +2073,10 @@ simplify_vector_constructor (gimple_stmt_iterator *gsi) return false; orig = ref; } - if (TREE_INT_CST_LOW (TREE_OPERAND (op1, 1)) != elem_size) + unsigned int elt; + if (maybe_ne (bit_field_size (op1), elem_size) + || !constant_multiple_p (bit_field_offset (op1), elem_size, &elt)) return false; - unsigned int elt = TREE_INT_CST_LOW (TREE_OPERAND (op1, 2)) / elem_size; if (elt != i) maybe_ident = false; sel.quick_push (elt); |