Fix warning in r15953.

[libfirm] / ir / be / beabi.c

diff --git a/ir/be/beabi.c b/ir/be/beabi.c
index 4150ae4..df362d9 100644 (file)
--- a/ir/be/beabi.c
+++ b/ir/be/beabi.c
@@ -90,8 +90,6 @@ struct _be_abi_irg_t {
        ir_node              *init_sp;      /**< The node representing the stack pointer
                                                 at the start of the function. */
 
-       ir_node              *start_barrier; /**< The barrier of the start block */
-
        ir_node              *reg_params;   /**< The reg params node. */
        pmap                 *regs;         /**< A map of all callee-save and ignore regs to
                                                 their Projs to the RegParams node. */
@@ -1156,86 +1154,6 @@ static void process_calls(be_abi_irg_t *env)
        heights_free(ir_heights);
 }
 
-#if 0 /*
-static ir_node *setup_frame(be_abi_irg_t *env)
-{
-       const arch_isa_t *isa = env->birg->main_env->arch_env->isa;
-       const arch_register_t *sp = isa->sp;
-       const arch_register_t *bp = isa->bp;
-       be_abi_call_flags_bits_t flags = env->call->flags.bits;
-       ir_graph *irg      = env->birg->irg;
-       ir_node *bl        = get_irg_start_block(irg);
-       ir_node *no_mem    = get_irg_no_mem(irg);
-       ir_node *old_frame = get_irg_frame(irg);
-       ir_node *stack     = pmap_get(env->regs, (void *) sp);
-       ir_node *frame     = pmap_get(env->regs, (void *) bp);
-
-       int stack_nr       = get_Proj_proj(stack);
-
-       if(flags.try_omit_fp) {
-               stack = be_new_IncSP(sp, irg, bl, stack, no_mem, BE_STACK_FRAME_SIZE_EXPAND);
-               frame = stack;
-       }
-
-       else {
-               frame = be_new_Copy(bp->reg_class, irg, bl, stack);
-
-               be_node_set_flags(frame, -1, arch_irn_flags_dont_spill);
-               if(!flags.fp_free) {
-                       be_set_constr_single_reg(frame, -1, bp);
-                       be_node_set_flags(frame, -1, arch_irn_flags_ignore);
-                       arch_set_irn_register(env->birg->main_env->arch_env, frame, bp);
-               }
-
-               stack = be_new_IncSP(sp, irg, bl, stack, frame, BE_STACK_FRAME_SIZE_EXPAND);
-       }
-
-       be_node_set_flags(env->reg_params, -(stack_nr + 1), arch_irn_flags_ignore);
-       env->init_sp = stack;
-       set_irg_frame(irg, frame);
-       edges_reroute(old_frame, frame, irg);
-
-       return frame;
-}
-
-static void clearup_frame(be_abi_irg_t *env, ir_node *ret, pmap *reg_map, struct obstack *obst)
-{
-       const arch_isa_t *isa = env->birg->main_env->arch_env->isa;
-       const arch_register_t *sp = isa->sp;
-       const arch_register_t *bp = isa->bp;
-       ir_graph *irg      = env->birg->irg;
-       ir_node *ret_mem   = get_Return_mem(ret);
-       ir_node *frame     = get_irg_frame(irg);
-       ir_node *bl        = get_nodes_block(ret);
-       ir_node *stack     = get_irn_link(bl);
-
-       pmap_entry *ent;
-
-       if(env->call->flags.bits.try_omit_fp) {
-               stack = be_new_IncSP(sp, irg, bl, stack, ret_mem, -BE_STACK_FRAME_SIZE_SHRINK);
-       }
-
-       else {
-               stack = be_new_SetSP(sp, irg, bl, stack, frame, ret_mem);
-               be_set_constr_single_reg(stack, -1, sp);
-               be_node_set_flags(stack, -1, arch_irn_flags_ignore);
-       }
-
-       pmap_foreach(env->regs, ent) {
-               const arch_register_t *reg = ent->key;
-               ir_node *irn               = ent->value;
-
-               if(reg == sp)
-                       obstack_ptr_grow(&env->obst, stack);
-               else if(reg == bp)
-                       obstack_ptr_grow(&env->obst, frame);
-               else if(arch_register_type_is(reg, callee_save) || arch_register_type_is(reg, ignore))
-                       obstack_ptr_grow(obst, irn);
-       }
-}
-*/
-#endif
-
 /**
  * Computes the stack argument layout type.
  * Changes a possibly allocated value param type by moving
@@ -1746,7 +1664,6 @@ static void modify_irg(be_abi_irg_t *env)
        reg_node_map_t *rm;
        const arch_register_t *fp_reg;
        ir_node *frame_pointer;
-       ir_node *barrier;
        ir_node *reg_params_bl;
        ir_node **args;
        ir_node *arg_tuple;
@@ -1904,7 +1821,7 @@ static void modify_irg(be_abi_irg_t *env)
        env->init_sp = be_new_IncSP(sp, irg, bl, env->init_sp, BE_STACK_FRAME_SIZE_EXPAND);
        be_abi_reg_map_set(env->regs, sp, env->init_sp);
 
-       env->start_barrier = barrier = create_barrier(env, bl, &mem, env->regs, 0);
+       create_barrier(env, bl, &mem, env->regs, 0);
 
        env->init_sp = be_abi_reg_map_get(env->regs, sp);
        arch_set_irn_register(env->birg->main_env->arch_env, env->init_sp, sp);
@@ -2321,11 +2238,6 @@ ir_node *be_abi_get_ignore_irn(be_abi_irg_t *abi, const arch_register_t *reg)
        return pmap_get(abi->regs, (void *) reg);
 }
 
-ir_node *be_abi_get_start_barrier(be_abi_irg_t *abi)
-{
-       return abi->start_barrier;
-}
-
 /**
  * Returns non-zero if the ABI has omitted the frame pointer in
  * the current graph.