Commit 09ae633d authored by Christoph Mallon's avatar Christoph Mallon
Browse files

Clean up new_const_code_irg() a bit.

[r24585]
parent d6a4592a
......@@ -297,22 +297,27 @@ ir_graph *new_ir_graph(ir_entity *ent, int n_loc) {
/* Make a rudimentary IR graph for the constant code.
Must look like a correct irg, spare everything else. */
ir_graph *new_const_code_irg(void) {
ir_graph *res;
ir_node *end, *start_block, *start, *projX;
ir_graph *new_const_code_irg(void)
{
ir_graph *res = alloc_graph();
ir_node *bad;
ir_node *body_block;
res = alloc_graph();
ir_node *end;
ir_node *end_block;
ir_node *no_mem;
ir_node *projX;
ir_node *start_block;
ir_node *start;
/* inform statistics here, as blocks will be already build on this graph */
hook_new_graph(res, NULL);
current_ir_graph = res;
res->n_loc = 1; /* Only the memory. */
res->visited = 0; /* visited flag, for the ir walker */
current_ir_graph = res;
res->n_loc = 1; /* Only the memory. */
res->visited = 0; /* visited flag, for the ir walker */
res->block_visited = 0; /* visited flag, for the 'block'-walker */
res->obst = XMALLOC(struct obstack);
obstack_init (res->obst);
res->obst = XMALLOC(struct obstack);
obstack_init(res->obst);
res->extbb_obst = NULL;
res->last_node_idx = 0;
......@@ -322,52 +327,53 @@ ir_graph *new_const_code_irg(void) {
res->extblk_state = ir_extblk_info_none;
res->fp_model = fp_model_precise;
res->value_table = new_identities(); /* value table for global value
numbering for optimizing use in
iropt.c */
res->ent = NULL;
/* value table for global value numbering for optimizing use in iropt.c */
res->value_table = new_identities();
res->ent = NULL;
res->frame_type = NULL;
/* the Anchor node must be created first */
res->anchor = new_Anchor(res);
/* -- The end block -- */
set_irg_end_block (res, new_immBlock());
set_cur_block(get_irg_end_block(res));
end_block = new_immBlock();
set_irg_end_block(res, end_block);
set_cur_block(end_block);
end = new_End();
set_irg_end (res, end);
set_irg_end_reg (res, end);
set_irg_end_except(res, end);
mature_immBlock(get_cur_block()); /* mature the end block */
mature_immBlock(end_block);
/* -- The start block -- */
start_block = new_immBlock();
set_cur_block(start_block);
set_irg_start_block(res, start_block);
set_irg_bad (res, new_ir_node (NULL, res, start_block, op_Bad, mode_T, 0, NULL));
set_irg_no_mem (res, new_ir_node (NULL, res, start_block, op_NoMem, mode_M, 0, NULL));
start = new_Start();
set_irg_start (res, start);
bad = new_ir_node(NULL, res, start_block, op_Bad, mode_T, 0, NULL);
set_irg_bad(res, bad);
no_mem = new_ir_node(NULL, res, start_block, op_NoMem, mode_M, 0, NULL);
set_irg_no_mem(res, no_mem);
start = new_Start();
set_irg_start(res, start);
/* Proj results of start node */
set_irg_initial_mem(res, new_Proj(start, mode_M, pn_Start_M));
projX = new_Proj(start, mode_X, pn_Start_X_initial_exec);
add_immBlock_pred(start_block, projX);
mature_immBlock (start_block); /* mature the start block */
mature_immBlock(start_block);
body_block = new_immBlock();
add_immBlock_pred(body_block, projX);
mature_immBlock (body_block); /* mature the 'body' block for expressions */
mature_immBlock(body_block); /* mature the 'body' block for expressions */
set_cur_block(body_block);
/* Set the visited flag high enough that the blocks will never be visited. */
set_irn_visited(get_cur_block(), -1);
set_Block_block_visited(get_cur_block(), -1);
set_irn_visited(body_block, -1);
set_Block_block_visited(body_block, -1);
set_Block_block_visited(start_block, -1);
set_irn_visited(start_block, -1);
set_irn_visited(get_irg_bad(res), -1);
set_irn_visited(get_irg_no_mem(res), -1);
set_irn_visited(bad, -1);
set_irn_visited(no_mem, -1);
res->phase_state = phase_high;
......
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