PR testsuite/46230

[pf3gnuchains/gcc-fork.git] / gcc / tree-ssa-reassoc.c

diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index 790635c..197591e 100644 (file)
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -1786,13 +1786,15 @@ linearize_expr_tree (VEC(operand_entry_t, heap) **ops, gimple stmt,
   if (TREE_CODE (binlhs) == SSA_NAME)
     {
       binlhsdef = SSA_NAME_DEF_STMT (binlhs);
-      binlhsisreassoc = is_reassociable_op (binlhsdef, rhscode, loop);
+      binlhsisreassoc = (is_reassociable_op (binlhsdef, rhscode, loop)
+                        && !stmt_could_throw_p (binlhsdef));
     }
 
   if (TREE_CODE (binrhs) == SSA_NAME)
     {
       binrhsdef = SSA_NAME_DEF_STMT (binrhs);
-      binrhsisreassoc = is_reassociable_op (binrhsdef, rhscode, loop);
+      binrhsisreassoc = (is_reassociable_op (binrhsdef, rhscode, loop)
+                        && !stmt_could_throw_p (binrhsdef));
     }
 
   /* If the LHS is not reassociable, but the RHS is, we need to swap
@@ -2027,7 +2029,8 @@ reassociate_bb (basic_block bb)
     {
       gimple stmt = gsi_stmt (gsi);
 
-      if (is_gimple_assign (stmt))
+      if (is_gimple_assign (stmt)
+         && !stmt_could_throw_p (stmt))
        {
          tree lhs, rhs1, rhs2;
          enum tree_code rhs_code = gimple_assign_rhs_code (stmt);