put register classes into arch_env struct, no need for complicated callbacks
[libfirm] / ir / be / bemain.c
index f0d0d23..409fa37 100644 (file)
 #include "beverify.h"
 #include "be_dbgout.h"
 #include "beirg.h"
+#include "bestack.h"
 
 #define NEW_ID(s) new_id_from_chars(s, sizeof(s) - 1)
 
-#ifdef WITH_ILP
-#include "beilpsched.h"
-#endif /* WITH_ILP */
-
 /* options visible for anyone */
 static be_options_t be_options = {
        DUMP_NONE,                         /* dump flags */
        BE_TIME_OFF,                       /* no timing */
        0,                                 /* no opt profile */
        0,                                 /* try to omit frame pointer */
-       0,                                 /* try to omit leaf frame pointer */
        0,                                 /* create PIC code */
        0,                                 /* create gprof compatible profiling code */
        BE_VERIFY_WARN,                    /* verification level: warn */
-       BE_SCHED_LIST,                     /* scheduler: list scheduler */
        "linux",                           /* target OS name */
        "i44pc52.info.uni-karlsruhe.de",   /* ilp server */
        "cplex",                           /* ilp solver */
@@ -126,15 +121,6 @@ static const lc_opt_enum_int_items_t verify_items[] = {
        { NULL,     0 }
 };
 
-/* scheduling options. */
-static const lc_opt_enum_int_items_t sched_items[] = {
-       { "list", BE_SCHED_LIST },
-#ifdef WITH_ILP
-       { "ilp",  BE_SCHED_ILP  },
-#endif /* WITH_ILP */
-       { NULL,   0 }
-};
-
 static lc_opt_enum_mask_var_t dump_var = {
        &be_options.dump_flags, dump_items
 };
@@ -143,21 +129,15 @@ static lc_opt_enum_int_var_t verify_var = {
        &be_options.verify_option, verify_items
 };
 
-static lc_opt_enum_int_var_t sched_var = {
-       &be_options.scheduler, sched_items
-};
-
 static const lc_opt_table_entry_t be_main_options[] = {
        LC_OPT_ENT_STR      ("config",     "read another config file containing backend options", config_file, sizeof(config_file)),
        LC_OPT_ENT_ENUM_MASK("dump",       "dump irg on several occasions",                       &dump_var),
        LC_OPT_ENT_BOOL     ("omitfp",     "omit frame pointer",                                  &be_options.omit_fp),
-       LC_OPT_ENT_BOOL     ("omitleaffp", "omit frame pointer in leaf routines",                 &be_options.omit_leaf_fp),
        LC_OPT_ENT_BOOL     ("pic",        "create PIC code",                                     &be_options.pic),
        LC_OPT_ENT_BOOL     ("gprof",      "create gprof profiling code",                         &be_options.gprof),
        LC_OPT_ENT_ENUM_PTR ("verify",     "verify the backend irg",                              &verify_var),
        LC_OPT_ENT_BOOL     ("time",       "get backend timing statistics",                       &be_options.timing),
        LC_OPT_ENT_BOOL     ("profile",    "instrument the code for execution count profiling",   &be_options.opt_profile),
-       LC_OPT_ENT_ENUM_PTR ("sched",      "select a scheduler",                                  &sched_var),
        LC_OPT_ENT_STR      ("os",         "specify target operating system",                     &be_options.target_os, sizeof(be_options.target_os)),
 #ifdef FIRM_STATISTICS
        LC_OPT_ENT_BOOL     ("statev",     "dump statistic events",                               &be_options.statev),
@@ -271,11 +251,11 @@ asm_constraint_flags_t be_parse_asm_constraints(const char *constraint)
        }
 
        if ((
-               flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE &&
-               flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE
+               flags & ASM_CONSTRAINT_FLAG_MODIFIER_WRITE &&
+               flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE
            ) || (
-               flags & ASM_CONSTRAINT_FLAG_MODIFIER_READ &&
-               flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ
+               flags & ASM_CONSTRAINT_FLAG_MODIFIER_READ &&
+               flags & ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ
            )) {
                flags |= ASM_CONSTRAINT_FLAG_INVALID;
        }
@@ -340,20 +320,6 @@ int be_parse_arg(const char *arg)
        return lc_opt_from_single_arg(be_grp, NULL, arg, NULL);
 }
 
-/** The be parameters returned by default, all off. */
-static const backend_params be_params = {
-       0,    /* don't support inline assembler yet */
-       0,    /* don't support rotl */
-       NULL, /* no lowering required */
-       NULL, /* will be set later */
-       NULL, /* no if conversion settings */
-       NULL, /* no float arithmetic mode */
-       0,    /* no trampoline support: size 0 */
-       0,    /* no trampoline support: align 0 */
-       NULL, /* no trampoline support: no trampoline builder */
-       4     /* alignment of stack parameter */
-};
-
 /* Perform schedule verification if requested. */
 static void be_sched_verify(ir_graph *irg, int verify_opt)
 {
@@ -380,9 +346,7 @@ void firm_be_finish(void)
 /* Returns the backend parameter */
 const backend_params *be_get_backend_param(void)
 {
-       if (isa_if->get_params)
-               return isa_if->get_params();
-       return &be_params;
+       return isa_if->get_params();
 }
 
 /**
@@ -463,9 +427,6 @@ static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env)
        /* set the current graph (this is important for several firm functions) */
        current_ir_graph = irg;
 
-       /* Normalize proj nodes. */
-       normalize_proj_nodes(irg);
-
        /* we do this before critical edge split. As this produces less returns,
           because sometimes (= 164.gzip) multiple returns are slower */
        normalize_n_returns(irg);
@@ -482,8 +443,6 @@ static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env)
        dump(DUMP_INITIAL, irg, "prepared");
 }
 
-#define BE_TIMER_ONLY(code)   do { if (be_timing) { code; } } while (0)
-
 int be_timing;
 
 static const char *get_timer_name(be_timer_id_t id)
@@ -600,7 +559,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                be_irg_t *birg = &birgs[i];
                ir_graph *irg  = birg->irg;
                optimization_state_t state;
-               const arch_code_generator_if_t *cg_if;
 
                /* set the current graph (this is important for several firm functions) */
                current_ir_graph = irg;
@@ -625,15 +583,12 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                }
                be_timer_pop(T_VERIFY);
 
-               /* Get the code generator interface. */
-               cg_if = arch_env_get_code_generator_if(arch_env);
-
                /* get a code generator for this graph. */
-               birg->cg = cg_if->init(irg);
+               arch_env->impl->init_graph(irg);
 
                /* some transformations need to be done before abi introduce */
-               assert(birg->cg->impl->before_abi == NULL || !arch_env->custom_abi);
-               arch_code_generator_before_abi(birg->cg);
+               if (arch_env->impl->before_abi != NULL)
+                       arch_env->impl->before_abi(irg);
 
                /* implement the ABI conventions. */
                be_timer_push(T_ABI);
@@ -665,7 +620,8 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
 
                /* perform codeselection */
                be_timer_push(T_CODEGEN);
-               arch_code_generator_prepare_graph(birg->cg);
+               if (arch_env->impl->prepare_graph != NULL)
+                       arch_env->impl->prepare_graph(irg);
                be_timer_pop(T_CODEGEN);
 
                if (be_options.verify_option == BE_VERIFY_WARN) {
@@ -694,18 +650,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
 
                /* schedule the irg */
                be_timer_push(T_SCHED);
-               switch (be_options.scheduler) {
-                       default:
-                               fprintf(stderr, "Warning: invalid scheduler (%d) selected, falling back to list scheduler.\n", be_options.scheduler);
-                       case BE_SCHED_LIST:
-                               list_sched(irg);
-                               break;
-#ifdef WITH_ILP
-                       case BE_SCHED_ILP:
-                               be_ilp_sched(irg);
-                               break;
-#endif /* WITH_ILP */
-               };
+               list_sched(irg);
                be_timer_pop(T_SCHED);
 
                dump(DUMP_SCHED, irg, "sched");
@@ -720,7 +665,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                /* we switch off optimizations here, because they might cause trouble */
                save_optimization_state(&state);
                set_optimize(0);
-               set_opt_normalize(0);
                set_opt_cse(0);
 
                /* add Keeps for should_be_different constrained nodes  */
@@ -732,7 +676,8 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
 
                /* stuff needs to be done after scheduling but before register allocation */
                be_timer_push(T_RA_PREPARATION);
-               arch_code_generator_before_ra(birg->cg);
+               if (arch_env->impl->before_ra != NULL)
+                       arch_env->impl->before_ra(irg);
                be_timer_pop(T_RA_PREPARATION);
 
                /* connect all stack modifying nodes together (see beabi.c) */
@@ -765,7 +710,8 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
 
                /* let the code generator prepare the graph for emitter */
                be_timer_push(T_FINISH);
-               arch_code_generator_after_ra(birg->cg);
+               if (arch_env->impl->after_ra != NULL)
+                       arch_env->impl->after_ra(irg);
                be_timer_pop(T_FINISH);
 
                /* fix stack offsets */
@@ -778,7 +724,8 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
                dump(DUMP_SCHED, irg, "fix_stack_after_ra");
 
                be_timer_push(T_FINISH);
-               arch_code_generator_finish(birg->cg);
+               if (arch_env->impl->finish != NULL)
+                       arch_env->impl->finish(irg);
                be_timer_pop(T_FINISH);
 
                dump(DUMP_FINAL, irg, "finish");
@@ -807,7 +754,8 @@ static void be_main_loop(FILE *file_handle, const char *cup_name)
 
                /* emit assembler code */
                be_timer_push(T_EMIT);
-               arch_code_generator_done(birg->cg);
+               if (arch_env->impl->emit != NULL)
+                       arch_env->impl->emit(irg);
                be_timer_pop(T_EMIT);
 
                dump(DUMP_FINAL, irg, "end");