Merge timers[] into opts[].
[cparser] / driver / firm_opt.c
index 922dd76..a8069e5 100644 (file)
 #include <libfirm/firm.h>
 
 #include "firm_opt.h"
-#include "firm_codegen.h"
-#include "firm_cmdline.h"
 #include "firm_timing.h"
 #include "ast2firm.h"
+#include "adt/strutil.h"
+
+/* optimization settings */
+struct a_firm_opt {
+       bool     const_folding;   /**< enable constant folding */
+       bool     cse;             /**< enable common-subexpression elimination */
+       bool     confirm;         /**< enable Confirm optimization */
+       bool     muls;            /**< enable architecture dependent mul optimization */
+       bool     divs;            /**< enable architecture dependent div optimization */
+       bool     mods;            /**< enable architecture dependent mod optimization */
+       bool     alias_analysis;  /**< enable Alias Analysis */
+       bool     strict_alias;    /**< enable strict Alias Analysis (using type based AA) */
+       bool     no_alias;        /**< no aliasing possible. */
+       bool     verify;          /**< Firm verifier setting */
+       bool     check_all;       /**< enable checking all Firm phases */
+       int      clone_threshold; /**< The threshold value for procedure cloning. */
+       unsigned inline_maxsize;  /**< Maximum function size for inlining. */
+       unsigned inline_threshold;/**< Inlining benefice threshold. */
+       bool     verify_edges;    /**< verify edges */
+};
+
+/** statistic options */
+typedef enum a_firmstat_selection_tag {
+       STAT_NONE        = 0x00000000,
+       STAT_BEFORE_OPT  = 0x00000001,
+       STAT_AFTER_OPT   = 0x00000002,
+       STAT_AFTER_LOWER = 0x00000004,
+       STAT_FINAL_IR    = 0x00000008,
+       STAT_FINAL       = 0x00000010,
+} a_firmstat_selection;
+
+/* dumping options */
+struct a_firm_dump {
+       bool debug_print;   /**< enable debug print */
+       bool all_types;     /**< dump the All_types graph */
+       bool no_blocks;     /**< dump non-blocked graph */
+       bool extbb;         /**< dumps extended basic blocks */
+       bool ir_graph;      /**< dump all graphs */
+       bool all_phases;    /**< dump the IR graph after all phases */
+       bool statistic;     /**< Firm statistic setting */
+       bool stat_pattern;  /**< enable Firm statistic pattern */
+       bool stat_dag;      /**< enable Firm DAG statistic */
+};
+
+struct a_firm_be_opt {
+       bool selection;
+       bool node_stat;
+};
+
+/* optimization settings */
+static struct a_firm_opt firm_opt = {
+       .const_folding    =  true,
+       .cse              =  true,
+       .confirm          =  true,
+       .muls             =  true,
+       .divs             =  true,
+       .mods             =  true,
+       .alias_analysis   =  true,
+       .strict_alias     =  false,
+       .no_alias         =  false,
+       .verify           =  FIRM_VERIFICATION_ON,
+       .check_all        =  true,
+       .clone_threshold  =  DEFAULT_CLONE_THRESHOLD,
+       .inline_maxsize   =  750,
+       .inline_threshold =  0,
+       .verify_edges     =  false,
+};
+
+/* dumping options */
+static struct a_firm_dump firm_dump = {
+       .debug_print  = false,
+       .all_types    = false,
+       .no_blocks    = false,
+       .extbb        = false,
+       .ir_graph     = false,
+       .all_phases   = false,
+       .statistic    = STAT_NONE,
+       .stat_pattern = 0,
+       .stat_dag     = 0,
+};
+
+#define X(a)  a, sizeof(a)-1
+
+/** Parameter description structure */
+static const struct params {
+  const char *option;      /**< name of the option */
+  size_t     opt_len;      /**< length of the option string */
+  bool       *flag;        /**< address of variable to set/reset */
+  bool       set;          /**< iff true, variable will be set, else reset */
+  const char *description; /**< description of this option */
+} firm_options[] = {
+  /* firm optimization options */
+  { X("no-opt"),                 NULL,                       0, "disable all FIRM optimizations" },
+  { X("cse"),                    &firm_opt.cse,              1, "enable common subexpression elimination" },
+  { X("no-cse"),                 &firm_opt.cse,              0, "disable common subexpression elimination" },
+  { X("const-fold"),             &firm_opt.const_folding,    1, "enable constant folding" },
+  { X("no-const-fold"),          &firm_opt.const_folding,    0, "disable constant folding" },
+  { X("inline-max-size=<size>"), NULL,                       0, "set maximum size for function inlining" },
+  { X("inline-threshold=<size>"),NULL,                       0, "set benefice threshold for function inlining" },
+  { X("confirm"),                &firm_opt.confirm,          1, "enable Confirm optimization" },
+  { X("no-confirm"),             &firm_opt.confirm,          0, "disable Confirm optimization" },
+  { X("opt-mul"),                &firm_opt.muls,             0, "enable multiplication optimization" },
+  { X("no-opt-mul"),             &firm_opt.muls,             0, "disable multiplication optimization" },
+  { X("opt-div"),                &firm_opt.divs,             0, "enable division optimization" },
+  { X("no-opt-div"),             &firm_opt.divs,             0, "disable division optimization" },
+  { X("opt-mod"),                &firm_opt.mods,             0, "enable remainder optimization" },
+  { X("no-opt-mod"),             &firm_opt.mods,             0, "disable remainder optimization" },
+  { X("opt-alias"),              &firm_opt.alias_analysis,   1, "enable alias analysis" },
+  { X("no-opt-alias"),           &firm_opt.alias_analysis,   0, "disable alias analysis" },
+  { X("alias"),                  &firm_opt.no_alias,         0, "aliasing occurs" },
+  { X("no-alias"),               &firm_opt.no_alias,         1, "no aliasing occurs" },
+  { X("strict-aliasing"),        &firm_opt.strict_alias,     1, "strict alias rules" },
+  { X("no-strict-aliasing"),     &firm_opt.strict_alias,     0, "strict alias rules" },
+  { X("clone-threshold=<value>"),NULL,                       0, "set clone threshold to <value>" },
+
+  /* other firm regarding options */
+  { X("verify-off"),             &firm_opt.verify,           FIRM_VERIFICATION_OFF,    "disable node verification" },
+  { X("verify-on"),              &firm_opt.verify,           FIRM_VERIFICATION_ON,     "enable node verification" },
+  { X("verify-report"),          &firm_opt.verify,           FIRM_VERIFICATION_REPORT, "node verification, report only" },
+  { X("check-all"),              &firm_opt.check_all,        1, "enable checking all Firm phases" },
+  { X("no-check-all"),           &firm_opt.check_all,        0, "disable checking all Firm phases" },
+  { X("verify-edges-on"),        &firm_opt.verify_edges,     1, "enable out edge verification" },
+  { X("verify-edges-off"),       &firm_opt.verify_edges,     0, "disable out edge verification" },
+
+  /* dumping */
+  { X("dump-ir"),                &firm_dump.ir_graph,        1, "dump IR graph" },
+  { X("dump-all-types"),         &firm_dump.all_types,       1, "dump graph of all types" },
+  { X("dump-no-blocks"),         &firm_dump.no_blocks,       1, "dump non-blocked graph" },
+  { X("dump-extbb"),             &firm_dump.extbb,           1, "dump extended basic blocks" },
+  { X("dump-all-phases"),        &firm_dump.all_phases,      1, "dump graphs for all optimization phases" },
+  { X("dump-filter=<string>"),   NULL,                       0, "set dumper filter" },
+
+  /* misc */
+  { X("stat-before-opt"),        &firm_dump.statistic,       STAT_BEFORE_OPT,  "Firm statistic output before optimizations" },
+  { X("stat-after-opt"),         &firm_dump.statistic,       STAT_AFTER_OPT,   "Firm statistic output after optimizations" },
+  { X("stat-after-lower"),       &firm_dump.statistic,       STAT_AFTER_LOWER, "Firm statistic output after lowering" },
+  { X("stat-final-ir"),          &firm_dump.statistic,       STAT_FINAL_IR,    "Firm statistic after final optimization" },
+  { X("stat-final"),             &firm_dump.statistic,       STAT_FINAL,       "Firm statistic after code generation" },
+  { X("stat-pattern"),           &firm_dump.stat_pattern,    1, "Firm statistic calculates most used pattern" },
+  { X("stat-dag"),               &firm_dump.stat_dag,        1, "Firm calculates DAG statistics" },
+};
 
-#if defined(_DEBUG) || defined(FIRM_DEBUG)
-#define DBG(x)  dbg_printf x
-#else
-#define DBG(x) ((void)0)
-#endif /* _DEBUG || FIRM_DEBUG */
+#undef X
 
 static ir_timer_t *t_vcg_dump;
 static ir_timer_t *t_verify;
@@ -35,51 +170,24 @@ static bool do_irg_opt(ir_graph *irg, const char *name);
 
 /** dump all the graphs depending on cond */
 
-static void dump_all(const char *suffix) {
-       if (firm_dump.ir_graph) {
-               timer_push(t_vcg_dump);
-               if (firm_dump.no_blocks)
-                       dump_all_ir_graphs(dump_ir_graph, suffix);
-               else if (firm_dump.extbb)
-                       dump_all_ir_graphs(dump_ir_extblock_graph, suffix);
-               else
-                       dump_all_ir_graphs(dump_ir_block_graph, suffix);
-               timer_pop(t_vcg_dump);
-       }
-}
+static void dump_all(const char *suffix)
+{
+       if (!firm_dump.ir_graph)
+               return;
 
-/* set by the backend parameters */
-static const ir_settings_arch_dep_t *ad_param              = NULL;
-static create_intrinsic_fkt         *arch_create_intrinsic = NULL;
-static void                         *create_intrinsic_ctx  = NULL;
-static const ir_settings_if_conv_t  *if_conv_info          = NULL;
+       timer_push(t_vcg_dump);
+       dump_all_ir_graphs(suffix);
+       timer_pop(t_vcg_dump);
+}
 
 /* entities of runtime functions */
 ir_entity_ptr rts_entities[rts_max];
 
-/**
- * factory for setting architecture dependent parameters
- */
-static const ir_settings_arch_dep_t *arch_factory(void)
-{
-       static const ir_settings_arch_dep_t param = {
-               1,   /* also use subs */
-               4,   /* maximum shifts */
-               31,   /* maximum shift amount */
-               NULL, /* use default evaluator */
-
-               1, /* allow Mulhs */
-               1, /* allow Mulus */
-               32  /* Mulh allowed up to 32 bit */
-       };
-
-       return ad_param ? ad_param : &param;
-}
-
 /**
  * Map runtime functions.
  */
-static void rts_map(void) {
+static void rts_map(void)
+{
        static const struct {
                ir_entity_ptr *ent; /**< address of the rts entity */
                i_mapper_func func; /**< mapper function. */
@@ -184,47 +292,6 @@ static void rts_map(void) {
 
 static int *irg_dump_no;
 
-static void dump_graph_count(ir_graph *const irg, const char *const suffix)
-{
-       char name[64];
-       snprintf(name, sizeof(name), "-%02d_%s", irg_dump_no[get_irg_idx(irg)]++,
-                suffix);
-
-       timer_push(t_vcg_dump);
-       if (firm_dump.no_blocks)
-               dump_ir_graph(irg, name);
-       else if (firm_dump.extbb)
-               dump_ir_extblock_graph(irg, name);
-       else
-               dump_ir_block_graph(irg, name);
-       timer_pop(t_vcg_dump);
-}
-
-static int firm_const_exists;
-
-static void do_optimize_funccalls(void)
-{
-       optimize_funccalls(firm_const_exists, NULL);
-}
-
-static void do_gcse(ir_graph *irg)
-{
-       set_opt_global_cse(1);
-       optimize_graph_df(irg);
-       place_code(irg);
-       set_opt_global_cse(0);
-}
-
-static void do_lower_highlevel(ir_graph *irg)
-{
-       lower_highlevel_graph(irg, firm_opt.lower_bitfields);
-}
-
-static void do_if_conv(ir_graph *irg)
-{
-       opt_if_conv(irg, if_conv_info);
-}
-
 static void do_stred(ir_graph *irg)
 {
        opt_osr(irg, osr_flag_default | osr_flag_keep_reg_pressure | osr_flag_ignore_x86_shift);
@@ -249,39 +316,21 @@ static void do_cloning(void)
        proc_cloning((float) firm_opt.clone_threshold);
 }
 
-static void do_lower_switch(ir_graph *irg)
-{
-       lower_switch(irg, firm_opt.spare_size);
-}
-
 static void do_lower_mux(ir_graph *irg)
 {
        lower_mux(irg, NULL);
 }
 
-static void do_lower_dw_ops(void)
+static void do_gcse(ir_graph *irg)
 {
-       lwrdw_param_t init = {
-               1,
-               1,
-               get_atomic_mode(ATOMIC_TYPE_LONGLONG),
-               get_atomic_mode(ATOMIC_TYPE_ULONGLONG),
-               get_atomic_mode(ATOMIC_TYPE_INT),
-               get_atomic_mode(ATOMIC_TYPE_UINT),
-               def_create_intrinsic_fkt,
-               NULL
-       };
-
-       if (arch_create_intrinsic) {
-               init.create_intrinsic = arch_create_intrinsic;
-               init.ctx              = create_intrinsic_ctx;
-       }
-       lower_dw_ops(&init);
+       set_opt_global_cse(1);
+       optimize_graph_df(irg);
+       set_opt_global_cse(0);
 }
 
-static void do_vrp(ir_graph *irg)
+static void lower_blockcopy(ir_graph *irg)
 {
-       set_vrp_data(irg);
+       lower_CopyB(irg, 128, 4);
 }
 
 typedef enum opt_target {
@@ -302,56 +351,63 @@ typedef enum opt_flags {
 
 typedef void (*transform_irg_func)(ir_graph *irg);
 typedef void (*transform_irp_func)(void);
-typedef void (*func_ptr_t)(void);
 
 typedef struct {
        opt_target_t  target;
        const char   *name;
-       func_ptr_t    func;
+       union {
+               transform_irg_func transform_irg;
+               transform_irp_func transform_irp;
+       } u;
        const char   *description;
        opt_flags_t   flags;
+       ir_timer_t   *timer;
 } opt_config_t;
 
 static opt_config_t opts[] = {
-       { OPT_TARGET_IRP, "rts",             (func_ptr_t) rts_map,                 "optimization of known library functions", OPT_FLAG_HIDE_OPTIONS },
-       { OPT_TARGET_IRG, "combo",           (func_ptr_t) combo,                   "combined CCE, UCE and GVN",               OPT_FLAG_NONE},
-       { OPT_TARGET_IRG, "control-flow",    (func_ptr_t) optimize_cf,             "optimization of control-flow",            OPT_FLAG_HIDE_OPTIONS },
-       { OPT_TARGET_IRG, "local",           (func_ptr_t) optimize_graph_df,       "local graph optimizations",               OPT_FLAG_HIDE_OPTIONS },
-       { OPT_TARGET_IRP, "remove-unused",   (func_ptr_t) garbage_collect_entities,"removal of unused functions/variables",   OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY },
-       { OPT_TARGET_IRG, "opt-tail-rec",    (func_ptr_t) opt_tail_rec_irg,        "tail-recursion eliminiation",             OPT_FLAG_NONE },
-       { OPT_TARGET_IRP, "opt-func-call",   (func_ptr_t) do_optimize_funccalls,   "function call optimization",              OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "lower",           (func_ptr_t) do_lower_highlevel,      "lowering",                                OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_ESSENTIAL },
-       { OPT_TARGET_IRP, "lower-const",     (func_ptr_t) lower_const_code,        "lowering of constant code",               OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY | OPT_FLAG_ESSENTIAL },
-       { OPT_TARGET_IRP, "lower-dw",        (func_ptr_t) do_lower_dw_ops,         "lowering of doubleword operations",       OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_ESSENTIAL },
-       { OPT_TARGET_IRG, "lower-switch",    (func_ptr_t) do_lower_switch,         "switch lowering",                         OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_ESSENTIAL },
-       { OPT_TARGET_IRG, "one-return",      (func_ptr_t) normalize_one_return,    "normalisation to 1 return",               OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY },
-       { OPT_TARGET_IRG, "scalar-replace",  (func_ptr_t) scalar_replacement_opt,  "scalar replacement",                      OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "reassociation",   (func_ptr_t) optimize_reassociation,  "reassociation",                           OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "gcse",            (func_ptr_t) do_gcse,                 "global common subexpression elimination", OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "place",           (func_ptr_t) place_code,              "code placement",                          OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "confirm",         (func_ptr_t) construct_confirms,      "confirm optimisation",                    OPT_FLAG_HIDE_OPTIONS },
-       { OPT_TARGET_IRG, "opt-load-store",  (func_ptr_t) optimize_load_store,     "load store optimization",                 OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "parallelize-mem", (func_ptr_t) opt_parallelize_mem,     "parallelize memory",                      OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "deconv",          (func_ptr_t) conv_opt,                "conv node elimination",                   OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "thread-jumps",    (func_ptr_t) opt_jumpthreading,       "path-sensitive jumpthreading",            OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "remove-confirms", (func_ptr_t) remove_confirms,         "confirm removal",                         OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY },
-       { OPT_TARGET_IRG, "gvn-pre",         (func_ptr_t) do_gvn_pre,              "global value numbering partial redundancy elimination", OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "if-conversion",   (func_ptr_t) do_if_conv,              "if-conversion",                           OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "bool",            (func_ptr_t) opt_bool,                "bool simplification",                     OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "shape-blocks",    (func_ptr_t) shape_blocks,            "block shaping",                           OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "ivopts",          (func_ptr_t) do_stred,                "induction variable strength reduction",   OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "remove-phi-cycles", (func_ptr_t) remove_phi_cycles,     "removal of phi cycles",                   OPT_FLAG_HIDE_OPTIONS },
-       { OPT_TARGET_IRG, "dead",            (func_ptr_t) dead_node_elimination,   "dead node elimination",                   OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY },
-       { OPT_TARGET_IRP, "inline",          (func_ptr_t) do_inline,               "inlining",                                OPT_FLAG_NONE },
-       { OPT_TARGET_IRP, "opt-proc-clone",  (func_ptr_t) do_cloning,              "procedure cloning",                       OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "invert-loops",    (func_ptr_t) do_loop_inversion,       "loop inversion",                          OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "unroll-loops",    (func_ptr_t) do_loop_unrolling,       "loop unrolling",                          OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "lower-mux",       (func_ptr_t) do_lower_mux,            "mux lowering",                            OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "vrp",                         (func_ptr_t) do_vrp,                              "value range propagation",                             OPT_FLAG_NONE },
-       { OPT_TARGET_IRG, "frame",           (func_ptr_t) opt_frame_irg,           "remove unused frame entities",            OPT_FLAG_NONE },
+#define IRG(a, b, c, d) { OPT_TARGET_IRG, a, .u.transform_irg = (transform_irg_func)b, c, d }
+#define IRP(a, b, c, d) { OPT_TARGET_IRP, a, .u.transform_irp = b,                     c, d }
+       IRG("bool",              opt_bool,                 "bool simplification",                                   OPT_FLAG_NONE),
+       IRG("combo",             combo,                    "combined CCE, UCE and GVN",                             OPT_FLAG_NONE),
+       IRG("confirm",           construct_confirms,       "confirm optimization",                                  OPT_FLAG_HIDE_OPTIONS),
+       IRG("control-flow",      optimize_cf,              "optimization of control-flow",                          OPT_FLAG_HIDE_OPTIONS),
+       IRG("dead",              dead_node_elimination,    "dead node elimination",                                 OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY),
+       IRG("deconv",            conv_opt,                 "conv node elimination",                                 OPT_FLAG_NONE),
+       IRG("fp-vrp",            fixpoint_vrp,             "fixpoint value range propagation",                      OPT_FLAG_NONE),
+       IRG("frame",             opt_frame_irg,            "remove unused frame entities",                          OPT_FLAG_NONE),
+       IRG("gvn-pre",           do_gvn_pre,               "global value numbering partial redundancy elimination", OPT_FLAG_NONE),
+       IRG("if-conversion",     opt_if_conv,              "if-conversion",                                         OPT_FLAG_NONE),
+       IRG("invert-loops",      do_loop_inversion,        "loop inversion",                                        OPT_FLAG_NONE),
+       IRG("ivopts",            do_stred,                 "induction variable strength reduction",                 OPT_FLAG_NONE),
+       IRG("local",             optimize_graph_df,        "local graph optimizations",                             OPT_FLAG_HIDE_OPTIONS),
+       IRG("lower",             lower_highlevel_graph,    "lowering",                                              OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_ESSENTIAL),
+       IRG("lower-mux",         do_lower_mux,             "mux lowering",                                          OPT_FLAG_NONE),
+       IRG("opt-load-store",    optimize_load_store,      "load store optimization",                               OPT_FLAG_NONE),
+       IRG("opt-tail-rec",      opt_tail_rec_irg,         "tail-recursion eliminiation",                           OPT_FLAG_NONE),
+       IRG("parallelize-mem",   opt_parallelize_mem,      "parallelize memory",                                    OPT_FLAG_NONE),
+       IRG("gcse",              do_gcse,                  "global common subexpression eliminiation",              OPT_FLAG_NONE),
+       IRG("place",             place_code,               "code placement",                                        OPT_FLAG_NONE),
+       IRG("reassociation",     optimize_reassociation,   "reassociation",                                         OPT_FLAG_NONE),
+       IRG("remove-confirms",   remove_confirms,          "confirm removal",                                       OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY),
+       IRG("remove-phi-cycles", remove_phi_cycles,        "removal of phi cycles",                                 OPT_FLAG_HIDE_OPTIONS),
+       IRG("scalar-replace",    scalar_replacement_opt,   "scalar replacement",                                    OPT_FLAG_NONE),
+       IRG("shape-blocks",      shape_blocks,             "block shaping",                                         OPT_FLAG_NONE),
+       IRG("thread-jumps",      opt_jumpthreading,        "path-sensitive jumpthreading",                          OPT_FLAG_NONE),
+       IRG("unroll-loops",      do_loop_unrolling,        "loop unrolling",                                        OPT_FLAG_NONE),
+       IRG("vrp",               set_vrp_data,             "value range propagation",                               OPT_FLAG_NONE),
+       IRP("inline",            do_inline,                "inlining",                                              OPT_FLAG_NONE),
+       IRP("lower-const",       lower_const_code,         "lowering of constant code",                             OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY | OPT_FLAG_ESSENTIAL),
+       IRG("lower-blockcopy",   lower_blockcopy,          "replace small block copies with load/store sequences",  OPT_FLAG_NO_DUMP),
+       IRP("target-lowering",   be_lower_for_target,      "lowering necessary for target architecture",            OPT_FLAG_HIDE_OPTIONS | OPT_FLAG_ESSENTIAL),
+       IRP("opt-func-call",     optimize_funccalls,       "function call optimization",                            OPT_FLAG_NONE),
+       IRP("opt-proc-clone",    do_cloning,               "procedure cloning",                                     OPT_FLAG_NONE),
+       IRP("remove-unused",     garbage_collect_entities, "removal of unused functions/variables",                 OPT_FLAG_NO_DUMP | OPT_FLAG_NO_VERIFY),
+       IRP("rts",               rts_map,                  "optimization of known library functions",               OPT_FLAG_NONE),
+       IRP("opt-cc",            mark_private_methods,     "calling conventions optimization",                      OPT_FLAG_NONE),
+#undef IRP
+#undef IRG
 };
 static const int n_opts = sizeof(opts) / sizeof(opts[0]);
-ir_timer_t *timers[sizeof(opts)/sizeof(opts[0])];
 
 static opt_config_t *get_opt(const char *name)
 {
@@ -379,37 +435,32 @@ static bool get_opt_enabled(const char *name)
 }
 
 /**
- * perform an optimisation on a single graph
+ * perform an optimization on a single graph
  *
  * @return  true if something changed, false otherwise
  */
 static bool do_irg_opt(ir_graph *irg, const char *name)
 {
-       transform_irg_func  func;
-       ir_graph           *old_irg;
-       opt_config_t       *config = get_opt(name);
-       size_t              n      = config - opts;
+       opt_config_t *const config = get_opt(name);
        assert(config != NULL);
        assert(config->target == OPT_TARGET_IRG);
        if (! (config->flags & OPT_FLAG_ENABLED))
                return false;
 
-       old_irg          = current_ir_graph;
+       ir_graph *const old_irg = current_ir_graph;
        current_ir_graph = irg;
 
-       func = (transform_irg_func) config->func;
-
-       timer_push(timers[n]);
-       func(irg);
-       timer_pop(timers[n]);
+       timer_push(config->timer);
+       config->u.transform_irg(irg);
+       timer_pop(config->timer);
 
        if (firm_dump.all_phases && firm_dump.ir_graph) {
-               dump_graph_count(irg, name);
+               dump_ir_graph(irg, name);
        }
 
        if (firm_opt.check_all) {
                timer_push(t_verify);
-               irg_verify(irg, VRFY_ENFORCE_SSA);
+               irg_verify(irg, VERIFY_ENFORCE_SSA);
                timer_pop(t_verify);
        }
 
@@ -419,24 +470,20 @@ static bool do_irg_opt(ir_graph *irg, const char *name)
 
 static void do_irp_opt(const char *name)
 {
-       transform_irp_func  func;
-       opt_config_t       *config = get_opt(name);
-       size_t              n      = config - opts;
+       opt_config_t *const config = get_opt(name);
        assert(config->target == OPT_TARGET_IRP);
        if (! (config->flags & OPT_FLAG_ENABLED))
                return;
 
-       func = (transform_irp_func) config->func;
-
-       timer_push(timers[n]);
-       func();
-       timer_pop(timers[n]);
+       timer_push(config->timer);
+       config->u.transform_irp();
+       timer_pop(config->timer);
 
        if (firm_dump.ir_graph && firm_dump.all_phases) {
                int i;
                for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
                        ir_graph *irg = get_irp_irg(i);
-                       dump_graph_count(irg, name);
+                       dump_ir_graph(irg, name);
                }
        }
 
@@ -444,7 +491,7 @@ static void do_irp_opt(const char *name)
                int i;
                timer_push(t_verify);
                for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
-                       irg_verify(get_irp_irg(i), VRFY_ENFORCE_SSA);
+                       irg_verify(get_irp_irg(i), VERIFY_ENFORCE_SSA);
                }
                timer_pop(t_verify);
        }
@@ -464,17 +511,23 @@ static void enable_safe_defaults(void)
        set_opt_enabled("lower-const", true);
        set_opt_enabled("scalar-replace", true);
        set_opt_enabled("place", true);
+       set_opt_enabled("gcse", true);
        set_opt_enabled("confirm", true);
        set_opt_enabled("opt-load-store", true);
        set_opt_enabled("lower", true);
+       set_opt_enabled("lower-blockcopy", true);
        set_opt_enabled("deconv", true);
        set_opt_enabled("remove-confirms", true);
        set_opt_enabled("ivopts", true);
        set_opt_enabled("dead", true);
-       set_opt_enabled("lower-switch", true);
        set_opt_enabled("remove-phi-cycles", true);
        set_opt_enabled("frame", true);
        set_opt_enabled("combo", true);
+       set_opt_enabled("invert-loops", true);
+       set_opt_enabled("target-lowering", true);
+       set_opt_enabled("rts", true);
+       set_opt_enabled("parallelize-mem", true);
+       set_opt_enabled("opt-cc", true);
 }
 
 /**
@@ -484,7 +537,7 @@ static void enable_safe_defaults(void)
  */
 static void do_firm_optimizations(const char *input_filename)
 {
-       int      i;
+       size_t   i;
        unsigned aa_opt;
 
        set_opt_alias_analysis(firm_opt.alias_analysis);
@@ -498,9 +551,6 @@ static void do_firm_optimizations(const char *input_filename)
        set_irp_memory_disambiguator_options(aa_opt);
 
        /* parameter passing code should set them directly sometime... */
-       set_opt_enabled("rts", !firm_opt.freestanding);
-       set_opt_enabled("gcse", firm_opt.gcse);
-       set_opt_enabled("place", !firm_opt.gcse);
        set_opt_enabled("confirm", firm_opt.confirm);
        set_opt_enabled("remove-confirms", firm_opt.confirm);
 
@@ -538,6 +588,7 @@ static void do_firm_optimizations(const char *input_filename)
                do_irg_opt(irg, "reassociation");
                do_irg_opt(irg, "local");
                do_irg_opt(irg, "gcse");
+               do_irg_opt(irg, "place");
 
                if (firm_opt.confirm) {
                        /* Confirm construction currently can only handle blocks with only
@@ -552,11 +603,13 @@ static void do_firm_optimizations(const char *input_filename)
 
                do_irg_opt(irg, "control-flow");
                do_irg_opt(irg, "opt-load-store");
+               do_irg_opt(irg, "fp-vrp");
                do_irg_opt(irg, "lower");
                do_irg_opt(irg, "deconv");
                do_irg_opt(irg, "thread-jumps");
                do_irg_opt(irg, "remove-confirms");
                do_irg_opt(irg, "gvn-pre");
+               do_irg_opt(irg, "gcse");
                do_irg_opt(irg, "place");
                do_irg_opt(irg, "control-flow");
 
@@ -569,11 +622,9 @@ static void do_firm_optimizations(const char *input_filename)
 
                do_irg_opt(irg, "bool");
                do_irg_opt(irg, "shape-blocks");
-               do_irg_opt(irg, "lower-switch");
                do_irg_opt(irg, "ivopts");
                do_irg_opt(irg, "local");
                do_irg_opt(irg, "dead");
-               do_irg_opt(irg, "frame");
        }
 
        do_irp_opt("inline");
@@ -601,7 +652,7 @@ static void do_firm_optimizations(const char *input_filename)
                        construct_cf_backedges(get_irp_irg(i));
        }
 
-       dump_all("-opt");
+       dump_all("opt");
 
        if (firm_dump.statistic & STAT_AFTER_OPT)
                stat_dump_snapshot(input_filename, "opt");
@@ -618,69 +669,59 @@ static void do_firm_lowering(const char *input_filename)
 {
        int i;
 
-       do_irp_opt("lower-dw");
+       /* enable architecture dependent optimizations */
+       arch_dep_set_opts((arch_dep_opts_t)
+                       ((firm_opt.muls ? arch_dep_mul_to_shift : arch_dep_none) |
+                        (firm_opt.divs ? arch_dep_div_by_const : arch_dep_none) |
+                        (firm_opt.mods ? arch_dep_mod_by_const : arch_dep_none) ));
+       for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
+               ir_graph *irg = get_irp_irg(i);
+               do_irg_opt(irg, "reassociation");
+               do_irg_opt(irg, "local");
+       }
+
+       do_irp_opt("target-lowering");
 
        if (firm_dump.statistic & STAT_AFTER_LOWER)
                stat_dump_snapshot(input_filename, "low");
 
-       dump_all("-low");
-
-       if (firm_opt.enabled) {
-               timer_start(t_all_opt);
-
-               /* run reassociation first on all graphs BEFORE the architecture
-                  dependent optimizations are enabled */
-               for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
-                       ir_graph *irg = get_irp_irg(i);
-                       do_irg_opt(irg, "reassociation");
-               }
+       timer_start(t_all_opt);
 
-               /* enable architecture dependent optimizations */
-               arch_dep_set_opts((arch_dep_opts_t)
-                               ((firm_opt.muls ? arch_dep_mul_to_shift : arch_dep_none) |
-                                (firm_opt.divs ? arch_dep_div_by_const : arch_dep_none) |
-                                (firm_opt.mods ? arch_dep_mod_by_const : arch_dep_none) ));
+       for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
+               ir_graph *irg = get_irp_irg(i);
 
-               for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
-                       ir_graph *irg = get_irp_irg(i);
+               do_irg_opt(irg, "lower-blockcopy");
+               do_irg_opt(irg, "local");
+               do_irg_opt(irg, "deconv");
+               do_irg_opt(irg, "control-flow");
+               do_irg_opt(irg, "opt-load-store");
+               do_irg_opt(irg, "gcse");
+               do_irg_opt(irg, "place");
+               do_irg_opt(irg, "control-flow");
 
+               if (do_irg_opt(irg, "vrp")) {
                        do_irg_opt(irg, "local");
-                       do_irg_opt(irg, "gcse");
-                       do_irg_opt(irg, "opt-load-store");
+                       do_irg_opt(irg, "control-flow");
+                       do_irg_opt(irg, "vrp");
                        do_irg_opt(irg, "local");
                        do_irg_opt(irg, "control-flow");
+               }
 
-                       if (do_irg_opt(irg, "vrp")) {
-                               do_irg_opt(irg, "local");
-                               do_irg_opt(irg, "control-flow");
-                               do_irg_opt(irg, "vrp");
-                               do_irg_opt(irg, "local");
-                               do_irg_opt(irg, "control-flow");
-                       }
-
-                       if (do_irg_opt(irg, "if-conversion")) {
-                               do_irg_opt(irg, "local");
-                               do_irg_opt(irg, "control-flow");
-                       }
-
-                       do_irg_opt(irg, "parallelize-mem");
+               if (do_irg_opt(irg, "if-conversion")) {
+                       do_irg_opt(irg, "local");
+                       do_irg_opt(irg, "control-flow");
                }
-               timer_stop(t_all_opt);
 
-               do_irp_opt("remove-unused");
+               set_irg_state(irg, IR_GRAPH_STATE_NORMALISATION2);
+               do_irg_opt(irg, "local");
 
-               dump_all("-low-opt");
+               do_irg_opt(irg, "parallelize-mem");
+               do_irg_opt(irg, "frame");
        }
-
-       if (firm_opt.cc_opt)
-               mark_private_methods();
-
-       /* set the phase to low */
-       for (i = get_irp_n_irgs() - 1; i >= 0; --i)
-               set_irg_phase_low(get_irp_irg(i));
-
-       /* all graphs are lowered, set the irp phase to low */
-       set_irp_phase_state(phase_low);
+       do_irp_opt("remove-unused");
+       do_irp_opt("opt-cc");
+       timer_stop(t_all_opt);
+       dump_all("low-opt");
 
        if (firm_dump.statistic & STAT_FINAL) {
                stat_dump_snapshot(input_filename, "final");
@@ -692,13 +733,12 @@ static void do_firm_lowering(const char *input_filename)
  */
 void gen_firm_init(void)
 {
-       firm_parameter_t params;
-       unsigned         pattern = 0;
-       int              i;
+       unsigned pattern = 0;
+       int      i;
 
        for (i = 0; i < n_opts; ++i) {
-               timers[i] = ir_timer_new();
-               timer_register(timers[i], opts[i].description);
+               opts[i].timer = ir_timer_new();
+               timer_register(opts[i].timer, opts[i].description);
        }
        t_verify = ir_timer_new();
        timer_register(t_verify, "Firm: verify pass");
@@ -713,30 +753,12 @@ void gen_firm_init(void)
        if (firm_dump.stat_dag)
                pattern |= FIRMSTAT_COUNT_DAG;
 
-       memset(&params, 0, sizeof(params));
-       params.size                  = sizeof(params);
-       params.enable_statistics     = firm_dump.statistic == STAT_NONE ? 0 :
-               FIRMSTAT_ENABLED | FIRMSTAT_COUNT_STRONG_OP | FIRMSTAT_COUNT_CONSTS
-               | pattern;
-       params.initialize_local_func = uninitialized_local_var;
-       params.cc_mask               = 0; /* no regparam, cdecl */
-
-       ir_init(&params);
-
-       if (firm_be_opt.selection == BE_FIRM_BE) {
-               const backend_params *be_params = be_get_backend_param();
-
-               if (be_params->do_dw_lowering)
-                       set_opt_enabled("lower-dw", true);
+       ir_init(NULL);
+       firm_init_stat(firm_dump.statistic == STAT_NONE ?
+                       0 : FIRMSTAT_ENABLED | FIRMSTAT_COUNT_STRONG_OP
+                       | FIRMSTAT_COUNT_CONSTS | pattern);
 
-               arch_create_intrinsic   = be_params->arch_create_intrinsic_fkt;
-               create_intrinsic_ctx    = be_params->create_intrinsic_ctx;
-
-               ad_param                = be_params->dep_param;
-               if_conv_info            = be_params->if_conv_info;
-       }
-
-       edges_init_dbg(firm_opt.vrfy_edges);
+       edges_init_dbg(firm_opt.verify_edges);
 
        /* Sel node cannot produce NULL pointers */
        set_opt_sel_based_null_check_elim(1);
@@ -744,31 +766,21 @@ void gen_firm_init(void)
        /* dynamic dispatch works currently only if whole world scenarios */
        set_opt_dyn_meth_dispatch(0);
 
-       arch_dep_init(arch_factory);
-
        /* do not run architecture dependent optimizations in building phase */
        arch_dep_set_opts(arch_dep_none);
 
-       do_node_verification((firm_verification_t) firm_opt.vrfy);
-       if (firm_dump.filter)
-               only_dump_method_with_name(new_id_from_str(firm_dump.filter));
-
-       if (firm_opt.enabled) {
-               set_optimize(1);
-               set_opt_constant_folding(firm_opt.const_folding);
-               set_opt_algebraic_simplification(firm_opt.const_folding);
-               set_opt_cse(firm_opt.cse);
-               set_opt_global_cse(0);
-               set_opt_unreachable_code(1);
-               set_opt_control_flow(firm_opt.control_flow);
-               set_opt_control_flow_weak_simplification(1);
-               set_opt_control_flow_strong_simplification(1);
-       } else {
-               set_optimize(0);
-       }
+       do_node_verification((firm_verification_t) firm_opt.verify);
+       if (firm_dump.extbb)
+               ir_add_dump_flags(ir_dump_flag_group_extbb);
+       if (firm_dump.no_blocks)
+               ir_remove_dump_flags(ir_dump_flag_blocks_as_subgraphs);
 
-       /* do not dump entity ld names */
-       dump_ld_names(0);
+       set_optimize(1);
+       set_opt_constant_folding(firm_opt.const_folding);
+       set_opt_algebraic_simplification(firm_opt.const_folding);
+       set_opt_cse(firm_opt.cse);
+       set_opt_global_cse(0);
+       set_opt_unreachable_code(1);
 }
 
 /**
@@ -778,45 +790,24 @@ void gen_firm_init(void)
  * @param out                a file handle for the output, may be NULL
  * @param input_filename     the name of the (main) source file
  * @param c_mode             non-zero if "C" was compiled
- * @param new_firm_const_exists  non-zero, if the const attribute was used on functions
  */
-void gen_firm_finish(FILE *out, const char *input_filename, int c_mode,
-                     int new_firm_const_exists)
+void gen_firm_finish(FILE *out, const char *input_filename)
 {
        int i;
 
-#if 0
-       if (firm_opt.enable_statev) {
-               char buf[1024];
-               snprintf(buf, sizeof(buf), "%s.ev", input_filename);
-               ir_stat_ev_begin(input_filename, firm_opt.statev_filter);
-               ir_stat_ev_compilation_unit(input_filename);
-       }
-#endif
-
-       firm_const_exists = new_firm_const_exists;
-
        /* the general for dumping option must be set, or the others will not work*/
        firm_dump.ir_graph
-               = (a_byte) (firm_dump.ir_graph | firm_dump.all_phases | firm_dump.extbb);
-
-       dump_keepalive_edges(1);
-       dump_consts_local(1);
-       dump_dominator_information(1);
-       dump_loop_information(0);
+               = (bool) (firm_dump.ir_graph | firm_dump.all_phases | firm_dump.extbb);
 
-       if (!firm_dump.edge_labels)
-               turn_off_edge_labels();
+       ir_add_dump_flags(ir_dump_flag_keepalive_edges
+                       | ir_dump_flag_consts_local | ir_dump_flag_dominance);
+       ir_remove_dump_flags(ir_dump_flag_loops | ir_dump_flag_ld_names);
 
        /* FIXME: cloning might ADD new graphs. */
        irg_dump_no = calloc(get_irp_last_idx(), sizeof(*irg_dump_no));
 
        if (firm_dump.all_types) {
-               dump_all_types("");
-               if (! c_mode) {
-                       dump_class_hierarchy(0, "");
-                       dump_class_hierarchy(1, "-with-entities");
-               }
+               dump_ir_prog_ext(dump_typegraph, "types.vcg");
        }
 
        /* finalize all graphs */
@@ -827,7 +818,7 @@ void gen_firm_finish(FILE *out, const char *input_filename, int c_mode,
        dump_all("");
 
        timer_push(t_verify);
-       tr_vrfy();
+       tr_verify();
        timer_pop(t_verify);
 
        /* all graphs are finalized, set the irp phase to high */
@@ -837,44 +828,45 @@ void gen_firm_finish(FILE *out, const char *input_filename, int c_mode,
        for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
                ir_graph *irg = get_irp_irg(i);
                do_irg_opt(irg, "control-flow");
-       }
-
-       /* lower all compound call return values */
-       lower_compound_params();
-
-       /* lower copyb nodes */
-       for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
-               ir_graph *irg = get_irp_irg(i);
-               lower_CopyB(irg, 128, 4);
+               do_irg_opt(irg, "lower-blockcopy");
        }
 
        if (firm_dump.statistic & STAT_BEFORE_OPT) {
                stat_dump_snapshot(input_filename, "noopt");
        }
 
-       if (firm_opt.enabled)
-               do_firm_optimizations(input_filename);
-
-       if (firm_opt.lower)
-               do_firm_lowering(input_filename);
+       do_firm_optimizations(input_filename);
+       do_firm_lowering(input_filename);
 
        /* set the phase to low */
        for (i = get_irp_n_irgs() - 1; i >= 0; --i)
-               set_irg_phase_low(get_irp_irg(i));
+               set_irg_phase_state(get_irp_irg(i), phase_low);
 
        if (firm_dump.statistic & STAT_FINAL_IR)
                stat_dump_snapshot(input_filename, "final-ir");
 
        /* run the code generator */
-       if (firm_be_opt.selection != BE_NONE)
-               do_codegen(out, input_filename);
+       ir_timer_t *timer = ir_timer_new();
+       timer_register(timer, "Firm: backend");
+       timer_start(timer);
+       be_main(out, input_filename);
+       timer_stop(timer);
 
        if (firm_dump.statistic & STAT_FINAL)
                stat_dump_snapshot(input_filename, "final");
 }
 
-void disable_all_opts(void)
+static void disable_all_opts(void)
 {
+       firm_opt.cse             = false;
+       firm_opt.confirm         = false;
+       firm_opt.muls            = false;
+       firm_opt.divs            = false;
+       firm_opt.mods            = false;
+       firm_opt.alias_analysis  = false;
+       firm_opt.strict_alias    = false;
+       firm_opt.no_alias        = false;
+
        for (int i = 0; i < n_opts; ++i) {
                opt_config_t *config = &opts[i];
                if (config->flags & OPT_FLAG_ESSENTIAL) {
@@ -885,7 +877,7 @@ void disable_all_opts(void)
        }
 }
 
-int firm_opt_option(const char *opt)
+static bool firm_opt_option(const char *opt)
 {
        bool enable = true;
        if (strncmp(opt, "no-", 3) == 0) {
@@ -895,18 +887,18 @@ int firm_opt_option(const char *opt)
 
        opt_config_t *config = get_opt(opt);
        if (config == NULL || (config->flags & OPT_FLAG_HIDE_OPTIONS))
-               return 0;
+               return false;
 
        config->flags &= ~OPT_FLAG_ENABLED;
        config->flags |= enable ? OPT_FLAG_ENABLED : 0;
-       return 1;
+       return true;
 }
 
-void firm_opt_option_help(void)
+void firm_option_help(print_option_help_func print_option_help)
 {
-       int i;
+       print_option_help(firm_options[0].option, firm_options[0].description);
 
-       for (i = 0; i < n_opts; ++i) {
+       for (int i = 0; i < n_opts; ++i) {
                char buf[1024];
                char buf2[1024];
 
@@ -914,14 +906,108 @@ void firm_opt_option_help(void)
                if (config->flags & OPT_FLAG_HIDE_OPTIONS)
                        continue;
 
-               snprintf(buf2, sizeof(buf2), "firm: enable %s", config->description);
-               print_option_help(config->name, buf2);
-               snprintf(buf, sizeof(buf), "no-%s", config->name);
-               snprintf(buf2, sizeof(buf2), "firm: disable %s", config->description);
+               snprintf(buf, sizeof(buf), "-f%s", config->name);
+               snprintf(buf2, sizeof(buf2), "enable %s", config->description);
+               print_option_help(buf, buf2);
+               snprintf(buf, sizeof(buf), "-fno-%s", config->name);
+               snprintf(buf2, sizeof(buf2), "disable %s", config->description);
+               print_option_help(buf, buf2);
+       }
+
+       size_t const n_options = sizeof(firm_options)/sizeof(firm_options[0]);
+       for (size_t k = 0; k < n_options; ++k) {
+               char buf[1024];
+               char buf2[1024];
+               snprintf(buf, sizeof(buf), "-f%s", firm_options[k].option);
+               snprintf(buf2, sizeof(buf2), "%s", firm_options[k].description);
                print_option_help(buf, buf2);
        }
 }
 
+int firm_option(const char *const opt)
+{
+       char const* val;
+       if ((val = strstart(opt, "dump-filter="))) {
+               ir_set_dump_filter(val);
+               return 1;
+       } else if ((val = strstart(opt, "clone-threshold="))) {
+               sscanf(val, "%d", &firm_opt.clone_threshold);
+               return 1;
+       } else if ((val = strstart(opt, "inline-max-size="))) {
+               sscanf(val, "%u", &firm_opt.inline_maxsize);
+               return 1;
+       } else if ((val = strstart(opt, "inline-threshold="))) {
+               sscanf(val, "%u", &firm_opt.inline_threshold);
+               return 1;
+       } else if (streq(opt, "no-opt")) {
+               disable_all_opts();
+               return 1;
+       }
+
+       size_t const len = strlen(opt);
+       size_t const n_options = sizeof(firm_options)/sizeof(firm_options[0]);
+       for (size_t i = n_options; i != 0;) {
+               struct params const* const o = &firm_options[--i];
+               if (len == o->opt_len && strncmp(opt, o->option, len) == 0) {
+                       /* statistic options do accumulate */
+                       if (o->flag == &firm_dump.statistic)
+                               *o->flag = (bool) (*o->flag | o->set);
+                       else
+                               *o->flag = o->set;
+
+                       return 1;
+               }
+       }
+
+       /* maybe this enables/disables optimizations */
+       if (firm_opt_option(opt))
+               return 1;
+
+       return 0;
+}
+
+static void set_be_option(const char *arg)
+{
+       int res = be_parse_arg(arg);
+       (void) res;
+       assert(res);
+}
+
+static void set_option(const char *arg)
+{
+       int res = firm_option(arg);
+       (void) res;
+       assert(res);
+}
+
+void choose_optimization_pack(int level)
+{
+       /* apply optimization level */
+       switch(level) {
+       case 0:
+               set_option("no-opt");
+               break;
+       case 1:
+               set_option("no-inline");
+               break;
+       default:
+       case 4:
+               /* use_builtins = true; */
+               /* fallthrough */
+       case 3:
+               set_option("thread-jumps");
+               set_option("if-conversion");
+               /* fallthrough */
+       case 2:
+               set_option("strict-aliasing");
+               set_option("inline");
+               set_option("fp-vrp");
+               set_option("deconv");
+               set_be_option("omitfp");
+               break;
+       }
+}
+
 /**
  * Do very early initializations
  */