attempt to fix Leas being placed before barrier

[r14276]

diff --git a/ir/be/ia32/ia32_optimize.c b/ir/be/ia32/ia32_optimize.c
index a30c88a..600fb26 100644 (file)
--- a/ir/be/ia32/ia32_optimize.c
+++ b/ir/be/ia32/ia32_optimize.c
@@ -77,9 +77,7 @@ void ia32_pre_transform_phase(ia32_code_gen_t *cg) {
                - the psi condition tree transformer needs existing constants to be ia32 constants
                - the psi condition tree transformer inserts new firm constants which need to be transformed
        */
-       //ia32_transform_all_firm_consts(cg);
        irg_walk_graph(cg->irg, NULL, ia32_transform_psi_cond_tree, cg);
-       //ia32_transform_all_firm_consts(cg);
 }
 
 /********************************************************************************************************
@@ -980,6 +978,10 @@ static ir_node *fold_addr(ia32_code_gen_t *cg, ir_node *irn) {
        /* ok, we can create a new LEA */
        if (dolea) {
                res = new_rd_ia32_Lea(dbg_info, irg, block, base, index);
+               /* we don't want stuff before the barrier... */
+               if(be_is_NoReg(cg, base) && be_is_NoReg(cg, index)) {
+                       add_irn_dep(res, get_irg_frame(irg));
+               }
 
                /* add the old offset of a previous LEA */
                add_ia32_am_offs_int(res, offs);