diff options
Diffstat (limited to 'gcc/tree-ssa-propagate.c')
| -rw-r--r-- | gcc/tree-ssa-propagate.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/gcc/tree-ssa-propagate.c b/gcc/tree-ssa-propagate.c index 69f41bab91d..9f9fef100fa 100644 --- a/gcc/tree-ssa-propagate.c +++ b/gcc/tree-ssa-propagate.c @@ -678,12 +678,14 @@ ssa_propagate (ssa_prop_visit_stmt_fn visit_stmt, tree first_vdef (tree stmt) { - if (NUM_V_MAY_DEFS (STMT_V_MAY_DEF_OPS (stmt)) > 0) - return V_MAY_DEF_RESULT (STMT_V_MAY_DEF_OPS (stmt), 0); - else if (NUM_V_MUST_DEFS (STMT_V_MUST_DEF_OPS (stmt)) > 0) - return V_MUST_DEF_RESULT (STMT_V_MUST_DEF_OPS (stmt), 0); - else - gcc_unreachable (); + ssa_op_iter iter; + tree op; + + /* Simply return the first operand we arrive at. */ + FOR_EACH_SSA_TREE_OPERAND (op, stmt, iter, SSA_OP_VIRTUAL_DEFS) + return (op); + + gcc_unreachable (); } @@ -700,8 +702,7 @@ stmt_makes_single_load (tree stmt) if (TREE_CODE (stmt) != MODIFY_EXPR) return false; - if (NUM_V_MAY_DEFS (STMT_V_MAY_DEF_OPS (stmt)) == 0 - && NUM_VUSES (STMT_VUSE_OPS (stmt)) == 0) + if (ZERO_SSA_OPERANDS (stmt, SSA_OP_VMAYDEF|SSA_OP_VUSE)) return false; rhs = TREE_OPERAND (stmt, 1); @@ -726,8 +727,7 @@ stmt_makes_single_store (tree stmt) if (TREE_CODE (stmt) != MODIFY_EXPR) return false; - if (NUM_V_MAY_DEFS (STMT_V_MAY_DEF_OPS (stmt)) == 0 - && NUM_V_MUST_DEFS (STMT_V_MUST_DEF_OPS (stmt)) == 0) + if (ZERO_SSA_OPERANDS (stmt, SSA_OP_VMAYDEF|SSA_OP_VMUSTDEF)) return false; lhs = TREE_OPERAND (stmt, 0); |