fehler109
[libfirm] / ir / be / beabi.c
index 43b07cf..d6c0bbd 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -61,12 +61,13 @@ typedef struct _be_abi_call_arg_t {
        unsigned in_reg   : 1;  /**< 1: this argument is transmitted in registers. */
        unsigned on_stack : 1;  /**< 1: this argument is transmitted on the stack. */
 
-       int pos;
+       int                    pos;
        const arch_register_t *reg;
-       ir_entity *stack_ent;
-       unsigned alignment;     /**< stack alignment */
-       unsigned space_before;  /**< allocate space before */
-       unsigned space_after;   /**< allocate space after */
+       ir_entity             *stack_ent;
+       ir_mode               *load_mode;
+       unsigned               alignment;    /**< stack alignment */
+       unsigned               space_before; /**< allocate space before */
+       unsigned               space_after;  /**< allocate space after */
 } be_abi_call_arg_t;
 
 struct _be_abi_call_t {
@@ -192,10 +193,11 @@ void be_abi_call_set_call_address_reg_class(be_abi_call_t *call, const arch_regi
 }
 
 
-void be_abi_call_param_stack(be_abi_call_t *call, int arg_pos, unsigned alignment, unsigned space_before, unsigned space_after)
+void be_abi_call_param_stack(be_abi_call_t *call, int arg_pos, ir_mode *load_mode, unsigned alignment, unsigned space_before, unsigned space_after)
 {
        be_abi_call_arg_t *arg = get_or_set_call_arg(call, 0, arg_pos, 1);
        arg->on_stack     = 1;
+       arg->load_mode    = load_mode;
        arg->alignment    = alignment;
        arg->space_before = space_before;
        arg->space_after  = space_after;
@@ -408,9 +410,9 @@ static ir_node *adjust_call(be_abi_irg_t *env, ir_node *irn, ir_node *curr_sp)
        ir_graph *irg              = env->birg->irg;
        const arch_env_t *arch_env = env->birg->main_env->arch_env;
        const arch_isa_t *isa      = arch_env->isa;
-       ir_type *mt                = get_Call_type(irn);
+       ir_type *call_tp           = get_Call_type(irn);
        ir_node *call_ptr          = get_Call_ptr(irn);
-       int n_params               = get_method_n_params(mt);
+       int n_params               = get_method_n_params(call_tp);
        ir_node *curr_mem          = get_Call_mem(irn);
        ir_node *bl                = get_nodes_block(irn);
        pset *results              = pset_new_ptr(8);
@@ -423,7 +425,7 @@ static ir_node *adjust_call(be_abi_irg_t *env, ir_node *irn, ir_node *curr_sp)
        ir_mode *mach_mode         = sp->reg_class->mode;
        struct obstack *obst       = &env->obst;
        int no_alloc               = call->flags.bits.frame_is_setup_on_call;
-       int n_res                  = get_method_n_ress(mt);
+       int n_res                  = get_method_n_ress(call_tp);
 
        ir_node *res_proj  = NULL;
        int n_reg_params   = 0;
@@ -441,7 +443,7 @@ static ir_node *adjust_call(be_abi_irg_t *env, ir_node *irn, ir_node *curr_sp)
        int i, n;
 
        /* Let the isa fill out the abi description for that call node. */
-       arch_isa_get_call_abi(isa, mt, call);
+       arch_isa_get_call_abi(isa, call_tp, call);
 
        /* Insert code to put the stack arguments on the stack. */
        assert(get_Call_n_params(irn) == n_params);
@@ -449,7 +451,7 @@ static ir_node *adjust_call(be_abi_irg_t *env, ir_node *irn, ir_node *curr_sp)
                be_abi_call_arg_t *arg = get_call_arg(call, 0, i);
                assert(arg);
                if (arg->on_stack) {
-                       int arg_size = get_type_size_bytes(get_method_param_type(mt, i));
+                       int arg_size = get_type_size_bytes(get_method_param_type(call_tp, i));
 
                        stack_size += round_up2(arg->space_before, arg->alignment);
                        stack_size += round_up2(arg_size, arg->alignment);
@@ -510,7 +512,7 @@ static ir_node *adjust_call(be_abi_irg_t *env, ir_node *irn, ir_node *curr_sp)
                        ir_node *param         = get_Call_param(irn, p);
                        ir_node *addr          = curr_sp;
                        ir_node *mem           = NULL;
-                       ir_type *param_type    = get_method_param_type(mt, p);
+                       ir_type *param_type    = get_method_param_type(call_tp, p);
                        int param_size         = get_type_size_bytes(param_type) + arg->space_after;
 
                        /*
@@ -655,6 +657,7 @@ static ir_node *adjust_call(be_abi_irg_t *env, ir_node *irn, ir_node *curr_sp)
                                       n_reg_results + pn_be_Call_first_res + pset_count(caller_save),
                                       n_ins, in, get_Call_type(irn));
        }
+       be_Call_set_pop(low_call, call->pop);
        ARR_APP1(ir_node *, env->calls, low_call);
 
        /* create new stack pointer */
@@ -681,7 +684,7 @@ static ir_node *adjust_call(be_abi_irg_t *env, ir_node *irn, ir_node *curr_sp)
                pn = i + pn_be_Call_first_res;
 
                if(proj == NULL) {
-                       ir_type *res_type = get_method_res_type(mt, i);
+                       ir_type *res_type = get_method_res_type(call_tp, i);
                        ir_mode *mode     = get_type_mode(res_type);
                        proj              = new_r_Proj(irg, bl, low_call, mode, pn);
                        res_projs[i]      = proj;
@@ -1307,7 +1310,7 @@ static reg_node_map_t *reg_map_to_arr(struct obstack *obst, pmap *reg_map)
        int i = 0;
        reg_node_map_t *res = obstack_alloc(obst, n * sizeof(res[0]));
 
-       pmap_foreach(reg_map, ent) {
+       foreach_pmap(reg_map, ent) {
                res[i].reg = ent->key;
                res[i].irn = ent->value;
                i++;
@@ -1426,7 +1429,7 @@ static ir_node *create_be_return(be_abi_irg_t *env, ir_node *irn, ir_node *bl,
        }
 
        /* Add uses of the callee save registers. */
-       pmap_foreach(env->regs, ent) {
+       foreach_pmap(env->regs, ent) {
                const arch_register_t *reg = ent->key;
                if(arch_register_type_is(reg, callee_save) || arch_register_type_is(reg, ignore))
                        pmap_insert(reg_map, ent->key, ent->value);
@@ -1466,7 +1469,7 @@ static ir_node *create_be_return(be_abi_irg_t *env, ir_node *irn, ir_node *bl,
        }
 
        /* grow the rest of the stuff. */
-       pmap_foreach(reg_map, ent) {
+       foreach_pmap(reg_map, ent) {
                if(ent->value) {
                        in[n]     = ent->value;
                        regs[n++] = ent->key;
@@ -1573,7 +1576,7 @@ static void fix_address_of_parameter_access(be_abi_irg_t *env, ir_entity *value_
                ir_node *frame, *imem, *nmem, *store, *mem, *args, *args_bl;
                const ir_edge_t *edge;
                optimization_state_t state;
-               int offset;
+               unsigned offset;
 
                foreach_block_succ(start_bl, edge) {
                        ir_node *succ = get_edge_src_irn(edge);
@@ -1627,11 +1630,11 @@ static void fix_address_of_parameter_access(be_abi_irg_t *env, ir_entity *value_
                frame_tp = get_irg_frame_type(irg);
                offset   = get_type_size_bytes(frame_tp);
                for (ent = new_list; ent; ent = get_entity_link(ent)) {
-                       ir_type *tp = get_entity_type(ent);
-                       int align = get_type_alignment_bytes(tp);
+                       ir_type  *tp   = get_entity_type(ent);
+                       unsigned align = get_type_alignment_bytes(tp);
 
                        offset += align - 1;
-                       offset &= -align;
+                       offset &= ~(align - 1);
                        set_entity_owner(ent, frame_tp);
                        add_class_member(frame_tp, ent);
                        /* must be automatic to set a fixed layout */
@@ -1889,25 +1892,25 @@ static void modify_irg(be_abi_irg_t *env)
 
                        if (arg->in_reg) {
                                repl = pmap_get(env->regs, (void *) arg->reg);
-                       }
-
-                       else if(arg->on_stack) {
+                       } else if(arg->on_stack) {
                                ir_node *addr = be_new_FrameAddr(sp->reg_class, irg, reg_params_bl, frame_pointer, arg->stack_ent);
 
                                /* For atomic parameters which are actually used, we create a Load node. */
                                if(is_atomic_type(param_type) && get_irn_n_edges(args[i]) > 0) {
-                                       ir_mode *mode                    = get_type_mode(param_type);
-                                       ir_node *load = new_rd_Load(NULL, irg, reg_params_bl,
-                                                                   new_NoMem(), addr, mode);
+                                       ir_mode *mode      = get_type_mode(param_type);
+                                       ir_mode *load_mode = arg->load_mode;
+
+                                       ir_node *load = new_r_Load(irg, reg_params_bl, new_NoMem(), addr, load_mode);
                                        set_irn_pinned(load, op_pin_state_floats);
-                                       repl = new_rd_Proj(NULL, irg, reg_params_bl, load,
-                                                          mode, pn_Load_res);
-                               }
+                                       repl = new_r_Proj(irg, reg_params_bl, load, load_mode, pn_Load_res);
 
-                               /* The stack parameter is not primitive (it is a struct or array),
-                                  we thus will create a node representing the parameter's address
-                                  on the stack. */
-                               else {
+                                       if (mode != load_mode) {
+                                               repl = new_r_Conv(irg, reg_params_bl, repl, mode);
+                                       }
+                               } else {
+                                       /* The stack parameter is not primitive (it is a struct or array),
+                                        * we thus will create a node representing the parameter's address
+                                        * on the stack. */
                                        repl = addr;
                                }
                        }
@@ -1934,7 +1937,9 @@ static void modify_irg(be_abi_irg_t *env)
                ir_node *irn = get_Block_cfgpred(end, i);
 
                if (is_Return(irn)) {
-                       ir_node *ret = create_be_return(env, irn, get_nodes_block(irn), get_Return_mem(irn), get_Return_n_ress(irn));
+                       ir_node *blk = get_nodes_block(irn);
+                       ir_node *mem = get_Return_mem(irn);
+                       ir_node *ret = create_be_return(env, irn, blk, mem, get_Return_n_ress(irn));
                        exchange(irn, ret);
                }
        }
@@ -2060,7 +2065,7 @@ be_abi_irg_t *be_abi_introduce(be_irg_t *birg)
 
        /* Make some important node pointers survive the dead node elimination. */
        survive_dce_register_irn(env->dce_survivor, &env->init_sp);
-       pmap_foreach(env->regs, ent) {
+       foreach_pmap(env->regs, ent) {
                survive_dce_register_irn(env->dce_survivor, (ir_node **) &ent->value);
        }
 
@@ -2208,10 +2213,10 @@ static int process_stack_bias(be_abi_irg_t *env, ir_node *bl, int bias)
 
                        if(be_is_IncSP(irn)) {
                                if(ofs == BE_STACK_FRAME_SIZE_EXPAND) {
-                                       ofs = get_type_size_bytes(get_irg_frame_type(env->birg->irg));
+                                       ofs = (int)get_type_size_bytes(get_irg_frame_type(env->birg->irg));
                                        be_set_IncSP_offset(irn, ofs);
                                } else if(ofs == BE_STACK_FRAME_SIZE_SHRINK) {
-                                       ofs = - get_type_size_bytes(get_irg_frame_type(env->birg->irg));
+                                       ofs = - (int)get_type_size_bytes(get_irg_frame_type(env->birg->irg));
                                        be_set_IncSP_offset(irn, ofs);
                                }
                        }