#include "../arch/archop.h" /* we need this for Min and Max nodes */
#include "ia32_transform.h"
#include "ia32_new_nodes.h"
-#include "ia32_map_regs.h"
#include "gen_ia32_regalloc_if.h"
/**
* Transforms a Call and its arguments corresponding to the calling convention.
*
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Call node
- * @param dummy mode doesn't matter
- * @return the created ia32 Call node
+ * @param env The transformation environment
+ * @return The created ia32 Call node
*/
static ir_node *gen_Call(ia32_transform_env_t *env) {
-#if 0
- const ia32_register_req_t **in_req;
- ir_node **in;
- ir_node *new_call, *sync;
- int i, j, n_new_call_in, ignore = 0;
- ia32_attr_t *attr;
- dbg_info *dbg = env->dbg;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
- ir_node *call = env->irn;
- ir_node **stack_param = NULL;
- ir_node **param = get_Call_param_arr(call);
- ir_node *call_Mem = get_Call_mem(call);
- unsigned cc = get_method_calling_convention(get_Call_type(call));
- int n = get_Call_n_params(call);
- int stack_idx = 0;
- int biggest_n = -1;
- int n_res = get_method_n_ress(get_Call_type(call));
-
- assert(n_res <= 2 && "method with more than two results not supported");
-
- if (cc & cc_reg_param)
- biggest_n = ia32_get_n_regparam_class(n, param, &ignore, &ignore);
-
- /* remember: biggest_n = x means we can pass (x + 1) parameters in register */
-
- /* do we need to pass arguments on stack? */
- if (biggest_n + 1 < n)
- stack_param = xcalloc(n - biggest_n - 1, sizeof(ir_node *));
-
- /* we need at least one in, either for the stack params or the call_Mem */
- n_new_call_in = biggest_n + 2;
-
- /* the call has one IN for all stack parameter and one IN for each reg param */
- in = xcalloc(n_new_call_in, sizeof(ir_node *));
- in_req = xcalloc(n_new_call_in, sizeof(arch_register_req_t *));
-
- /* loop over all parameters and set the register requirements */
- for (i = 0; i <= biggest_n && (cc & cc_reg_param); i++) {
- in_req[i] = ia32_get_RegParam_req(n, param, i, cc);
- }
- stack_idx = i;
-
- /* create remaining stack parameters */
- if (cc & cc_last_on_top) {
- for (i = stack_idx; i < n; i++) {
- /* pass it on stack */
- if (mode_is_float(get_irn_mode(param[i]))) {
- stack_param[i - stack_idx] = new_rd_ia32_fStackArg(get_irn_dbg_info(param[i]), irg,
- block, call_Mem, param[i], mode_M);
- }
- else {
- stack_param[i - stack_idx] = new_rd_ia32_StackArg(get_irn_dbg_info(param[i]), irg,
- block, call_Mem, param[i], mode_M);
- }
- /* set the argument number for later lowering */
- set_ia32_pncode(stack_param[i - stack_idx], i - stack_idx);
- }
- }
- else {
- for (i = n - 1, j = 0; i >= stack_idx; i--, j++) {
- /* pass it on stack */
- if (mode_is_float(get_irn_mode(param[i]))) {
- stack_param[j] = new_rd_ia32_fStackArg(get_irn_dbg_info(param[i]), irg,
- block, call_Mem, param[i], mode_M);
- }
- else {
- stack_param[j] = new_rd_ia32_StackArg(get_irn_dbg_info(param[i]), irg,
- block, call_Mem, param[i], mode_M);
- }
- /* set the argument number for later lowering */
- set_ia32_pncode(stack_param[j], j);
- }
- }
-
- if (stack_param) {
- sync = new_r_Sync(irg, block, n - biggest_n - 1, stack_param);
- in[n_new_call_in - 1] = sync;
- }
- else {
- in[n_new_call_in - 1] = call_Mem;
- }
-
- /* create the new node */
- new_call = new_rd_ia32_Call(dbg, irg, block, n_new_call_in, in);
- set_ia32_Immop_attr(new_call, get_Call_ptr(call));
-
- /* set register requirements for in and out */
- attr = get_ia32_attr(new_call);
- attr->in_req = in_req;
-
- set_ia32_n_res(new_call, n_res);
-
- if (n_res > 0) {
- attr->out_req = xcalloc(n_res, sizeof(ia32_register_req_t *));
- attr->slots = xcalloc(n_res, sizeof(arch_register_t *));
- }
-
- /* two results only appear when a 64bit int result is broken up into two 32bit results */
- if (n_res == 1) {
- if (mode_is_float(get_type_mode(get_method_res_type(get_Call_type(call), 0))))
- attr->out_req[0] = &ia32_default_req_ia32_fp_xmm0;
- else
- attr->out_req[0] = &ia32_default_req_ia32_gp_eax;
- }
- else if (n_res == 2) {
- attr->out_req[0] = &ia32_default_req_ia32_gp_eax;
- attr->out_req[1] = &ia32_default_req_ia32_gp_edx;
- }
-
- /* stack parameter has no OUT register */
- attr->in_req[n_new_call_in - 1] = &ia32_default_req_none;
-
- return new_call;
-#endif
}
-/**
- * Transform the argument projs from a start node corresponding to the
- * calling convention.
- * It transforms "Proj Arg x -> ProjT -> Start <- ProjM" into
- * "RegParam x -> ProjT -> Start" OR
- * "StackParam x -> ProjM -> Start"
- * whether parameter is passed in register or on stack.
- *
- * @param mod the debug module
- * @param block the block the nodes should belong to
- * @param proj the ProjT node which points to Start
- * @param start the Start node
- * @return Should be always NULL
- */
-static ir_node *gen_Proj_Start(ia32_transform_env_t *env, ir_node *proj, ir_node *start) {
-#if 0
- const ia32_register_req_t *temp_req;
- const ir_edge_t *edge;
- ir_node *succ, *irn;
- ir_node **projargs;
- ir_mode *mode;
- int n, i;
- unsigned cc;
- ir_node *proj_M = get_irg_initial_mem(current_ir_graph);
- entity *irg_ent = get_irg_entity(current_ir_graph);
- ir_type *tp = get_entity_type(irg_ent);
- int cur_pn = 0;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
-
- assert(is_Method_type(tp) && "irg type is not a method");
-
- switch(get_Proj_proj(proj)) {
- case pn_Start_T_args:
- /* We cannot use get_method_n_params here as the function might
- be variadic or one argument is not used. */
- n = get_irn_n_edges(proj);
-
- /* Allocate memory for all non variadic parameters in advance to be on the save side */
- env->cg->reg_param_req = xcalloc(get_method_n_params(tp), sizeof(ia32_register_req_t *));
-
- /* we are done here when there are no parameters */
- if (n < 1)
- break;
-
- /* temporary remember all proj arg x */
- projargs = xcalloc(n, sizeof(ir_node *));
-
- i = 0;
- foreach_out_edge((const ir_node *)proj, edge) {
- succ = get_edge_src_irn(edge);
- assert(is_Proj(succ) && "non-Proj from a Proj_T (pn_Start_T_args).");
- projargs[i++] = succ;
- }
-
- cc = get_method_calling_convention(tp);
-
- /* loop over all parameters and check whether its a int or float */
- for (i = 0; i < n; i++) {
- mode = get_irn_mode(projargs[i]);
- cur_pn = get_Proj_proj(projargs[i]);
-
- if (cc & cc_reg_param) {
- temp_req = ia32_get_RegParam_req(n, projargs, cur_pn, cc);
- }
- else {
- temp_req = NULL;
- }
-
- if (temp_req) {
- /* passed in register */
- env->cg->reg_param_req[cur_pn] = temp_req;
- }
- else {
- /* passed on stack */
- if (mode_is_float(mode))
- irn = new_rd_ia32_fStackParam(get_irn_dbg_info(projargs[i]), irg, block, proj_M, mode);
- else
- irn = new_rd_ia32_StackParam(get_irn_dbg_info(projargs[i]), irg, block, proj_M, mode);
-
- set_ia32_pncode(irn, cur_pn);
-
- /* kill the old "Proj Arg" and replace with the new stack param */
- exchange(projargs[i], irn);
- }
- }
-
- free(projargs);
-
- break;
- case pn_Start_P_frame_base:
- case pn_Start_X_initial_exec:
- case pn_Start_M:
- case pn_Start_P_globals:
- case pn_Start_P_value_arg_base:
- break;
- default:
- assert(0 && "unsupported Proj(Start)");
- }
-
- return NULL;
-#endif
-}
-
-/**
- * Transform some Proj's (Proj_Proj, Proj_Start, Proj_Cmp, Proj_Cond, Proj_Call).
- * All others are ignored.
- *
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Proj node
- * @param mode mode of the Proj
- * @return The transformed node.
- */
-static ir_node *gen_Proj(ia32_transform_env_t *env) {
- ir_node *new_node = NULL;
- ir_node *pred = get_Proj_pred(env->irn);
-
- if (env->mode == mode_M)
- return NULL;
-
- if (get_irn_op(pred) == op_Start) {
- new_node = gen_Proj_Start(env, env->irn, pred);
- }
-
- return new_node;
-}
-
-
-
/*********************************************************
* _ _ _
* (_) | | (_)
GEN(Store);
GEN(Cond);
- IGN(Proj);
IGN(Call);
IGN(Alloc);
+ IGN(Proj);
IGN(Block);
IGN(Start);
IGN(End);
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