libFirm
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iroptimize.h
1/*
2 * This file is part of libFirm.
3 * Copyright (C) 2012 University of Karlsruhe.
4 */
5
10#ifndef FIRM_IROPTIMIZE_H
11#define FIRM_IROPTIMIZE_H
12
13#include "firm_types.h"
14
15#include "begin.h"
16
33FIRM_API void optimize_cf(ir_graph *irg);
34
40FIRM_API void opt_jumpthreading(ir_graph* irg);
41
48FIRM_API void opt_bool(ir_graph *irg);
49
55FIRM_API void conv_opt(ir_graph *irg);
56
62
85FIRM_API void optimize_funccalls(void);
86
96FIRM_API void do_gvn_pre(ir_graph *irg);
97
109typedef int (*arch_allow_ifconv_func)(ir_node const *sel,
110 ir_node const *mux_false,
111 ir_node const *mux_true);
112
121FIRM_API void opt_if_conv(ir_graph *irg);
122
132FIRM_API void opt_if_conv_cb(ir_graph *irg, arch_allow_ifconv_func callback);
133
139FIRM_API void opt_parallelize_mem(ir_graph *irg);
140
153
179FIRM_API void optimize_load_store(ir_graph *irg);
180
184FIRM_API void combine_memops(ir_graph *irg);
185
191FIRM_API void opt_ldst(ir_graph *irg);
192
203FIRM_API void opt_frame_irg(ir_graph *irg);
204
214
216#define osr_flag_default osr_flag_lftr_with_ov_check
217
274FIRM_API void opt_osr(ir_graph *irg, unsigned flags);
275
286FIRM_API void remove_phi_cycles(ir_graph *irg);
287
289#define DEFAULT_CLONE_THRESHOLD 20
290
302FIRM_API void proc_cloning(float threshold);
303
319
340FIRM_API void normalize_one_return(ir_graph *irg);
341
362FIRM_API void normalize_n_returns(ir_graph *irg);
363
372
387FIRM_API void opt_tail_rec_irg(ir_graph *irg);
388
398FIRM_API void combo(ir_graph *irg);
399
401typedef void (*opt_ptr)(ir_graph *irg);
402
414FIRM_API void inline_functions(unsigned maxsize, int inline_threshold,
415 opt_ptr after_inline_opt);
416
422FIRM_API void shape_blocks(ir_graph *irg);
423
429FIRM_API void do_loop_inversion(ir_graph *irg);
430
436FIRM_API void do_loop_unrolling(ir_graph *irg);
437
445FIRM_API void unroll_loops(ir_graph *irg, unsigned factor, unsigned maxsize);
446
450FIRM_API void do_loop_peeling(ir_graph *irg);
451
460FIRM_API void garbage_collect_entities(void);
461
481FIRM_API void dead_node_elimination(ir_graph *irg);
482
497FIRM_API void place_code(ir_graph *irg);
498
503FIRM_API void occult_consts(ir_graph*);
504
512FIRM_API int value_not_null(const ir_node *n, const ir_node **confirm);
513
522 ir_relation relation);
523
528FIRM_API ir_entity *create_compilerlib_entity(char const *name, ir_type *mt);
529
532#include "end.h"
533
534#endif
struct ir_graph ir_graph
Procedure Graph.
Definition firm_types.h:74
struct ir_node ir_node
Procedure Graph Node.
Definition firm_types.h:53
ir_relation
Relations for comparing numbers.
Definition firm_types.h:162
void opt_parallelize_mem(ir_graph *irg)
Tries to reduce dependencies for memory nodes where possible by parallelizing them and synchronizing ...
void place_code(ir_graph *irg)
Code Placement.
void opt_bool(ir_graph *irg)
Simplifies boolean expression in the given ir graph.
void do_loop_peeling(ir_graph *irg)
Perform loop peeling on a given graph.
void inline_functions(unsigned maxsize, int inline_threshold, opt_ptr after_inline_opt)
Heuristic inliner.
void opt_ldst(ir_graph *irg)
New experimental alternative to optimize_load_store.
void proc_cloning(float threshold)
Performs procedure cloning.
void conv_opt(ir_graph *irg)
Reduces the number of Conv nodes in the given ir graph.
void normalize_one_return(ir_graph *irg)
Normalize the Returns of a graph by creating a new End block with One Return(Phi).
void garbage_collect_entities(void)
Removes all entities which are unused.
void opt_tail_rec_irg(ir_graph *irg)
Optimizes tail-recursion calls by converting them into loops.
void opt_frame_irg(ir_graph *irg)
Optimize the frame type of an irg by removing never touched entities.
int value_not_null(const ir_node *n, const ir_node **confirm)
Returns true if the value n is known not be zero/null.
void optimize_funccalls(void)
Optimize function calls by handling const functions.
osr_flags
Possible flags for the Operator Scalar Replacement.
Definition iroptimize.h:206
void combine_memops(ir_graph *irg)
Combine adjacent "small" load/store operations into bigger ones.
ir_entity * create_compilerlib_entity(char const *name, ir_type *mt)
Constructs the entity for a given function using the current compilerlib entity creation callback.
void occult_consts(ir_graph *)
This optimization finds values where the bits are either constant or irrelevant and exchanges them fo...
void normalize_n_returns(ir_graph *irg)
Normalize the Returns of a graph by moving the Returns upwards as much as possible.
int(* arch_allow_ifconv_func)(ir_node const *sel, ir_node const *mux_false, ir_node const *mux_true)
This function is called to evaluate, if a mux(sel, mux_false, mux_true) should be built for the curre...
Definition iroptimize.h:109
void shape_blocks(ir_graph *irg)
Combines congruent blocks into one.
void remove_phi_cycles(ir_graph *irg)
Removes useless Phi cycles, i.e cycles of Phi nodes with only one non-Phi node.
void opt_osr(ir_graph *irg, unsigned flags)
Performs the Operator Scalar Replacement optimization and linear function test replacement for loop c...
ir_tarval * computed_value_Cmp_Confirm(ir_node *left, ir_node *right, ir_relation relation)
Returns the value of a Cmp if one or both predecessors are Confirm nodes.
void unroll_loops(ir_graph *irg, unsigned factor, unsigned maxsize)
Perform loop unrolling on a given graph.
int(* check_alloc_entity_func)(ir_entity *ent)
A callback that checks whether a entity is an allocation routine.
Definition iroptimize.h:61
void do_loop_inversion(ir_graph *irg)
Perform loop inversion on a given graph.
void do_gvn_pre(ir_graph *irg)
Does Partial Redundancy Elimination combined with Global Value Numbering.
void opt_if_conv_cb(ir_graph *irg, arch_allow_ifconv_func callback)
Perform If conversion on a graph - callback version.
void optimize_load_store(ir_graph *irg)
Load/Store optimization.
void opt_if_conv(ir_graph *irg)
Perform If conversion on a graph.
void(* opt_ptr)(ir_graph *irg)
pointer to an optimization function
Definition iroptimize.h:401
void combo(ir_graph *irg)
CLiff Click's combo algorithm from "Combining Analyses, combining Optimizations".
void opt_jumpthreading(ir_graph *irg)
Perform path-sensitive jump threading on the given graph.
void optimize_reassociation(ir_graph *irg)
Reassociation.
void do_loop_unrolling(ir_graph *irg)
Perform loop unrolling on a given graph.
void dead_node_elimination(ir_graph *irg)
Performs dead node elimination by copying the ir graph to a new obstack.
ir_node * can_replace_load_by_const(const ir_node *load, ir_node *c)
Check if we can replace the load by a given const from the const code irg.
void scalar_replacement_opt(ir_graph *irg)
Performs the scalar replacement optimization.
void optimize_cf(ir_graph *irg)
Control flow optimization.
@ osr_flag_none
no additional flags
Definition iroptimize.h:207
@ osr_flag_lftr_with_ov_check
do linear function test replacement only if no overflow can occur.
Definition iroptimize.h:208
@ osr_flag_ignore_x86_shift
ignore Multiplications by 2, 4, 8
Definition iroptimize.h:210
@ osr_flag_keep_reg_pressure
do NOT increase register pressure by introducing new induction variables.
Definition iroptimize.h:211
struct ir_tarval ir_tarval
Target Machine Value.
Definition firm_types.h:68
struct ir_entity ir_entity
Entity.
Definition firm_types.h:83
struct ir_type ir_type
Type.
Definition firm_types.h:71