fehler109

[libfirm] / ir / be / ia32 / ia32_transform.c

diff --git a/ir/be/ia32/ia32_transform.c b/ir/be/ia32/ia32_transform.c
index 27f6ff5..4e0c2ad 100644 (file)
--- a/ir/be/ia32/ia32_transform.c
+++ b/ir/be/ia32/ia32_transform.c
@@ -1369,7 +1369,10 @@ static ir_node *create_Div(ir_node *node)
 
        match_arguments(&am, block, op1, op2, NULL, match_am);
 
-       if(!is_NoMem(mem)) {
+       /* Beware: We don't need a Sync, if the memory predecessor of the Div node
+          is the memory of the consumed address. We can have only the second op as address
+          in Div nodes, so check only op2. */
+       if(!is_NoMem(mem) && skip_Proj(mem) != skip_Proj(op2)) {
                new_mem = be_transform_node(mem);
                if(!is_NoMem(addr->mem)) {
                        ir_node *in[2];
@@ -3479,11 +3482,10 @@ static void parse_clobber(ir_node *node, int pos, constraint_t *constraint,
        size_t                       r;
        arch_register_req_t         *req;
        const arch_register_class_t *cls;
+       unsigned                    *limited;
 
        (void) pos;
 
-       fprintf(stderr, "Clobber: %s\n", clobber);
-
        /* TODO: construct a hashmap instead of doing linear search for clobber
         * register */
        for(c = 0; c < N_CLASSES; ++c) {
@@ -3506,8 +3508,8 @@ static void parse_clobber(ir_node *node, int pos, constraint_t *constraint,
 
        assert(reg->index < 32);
 
-       unsigned *limited = obstack_alloc(obst, sizeof(limited[0]));
-       *limited          = 1 << reg->index;
+       limited  = obstack_alloc(obst, sizeof(limited[0]));
+       *limited = 1 << reg->index;
 
        req          = obstack_alloc(obst, sizeof(req[0]));
        memset(req, 0, sizeof(req[0]));