besched: Add and use sched_foreach_reverse_safe().
[libfirm] / ir / be / amd64 / bearch_amd64.c
index 2733c92..3045a5f 100644 (file)
@@ -1,48 +1,40 @@
 /*
- * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
- *
  * This file is part of libFirm.
- *
- * This file may be distributed and/or modified under the terms of the
- * GNU General Public License version 2 as published by the Free Software
- * Foundation and appearing in the file LICENSE.GPL included in the
- * packaging of this file.
- *
- * Licensees holding valid libFirm Professional Edition licenses may use
- * this file in accordance with the libFirm Commercial License.
- * Agreement provided with the Software.
- *
- * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
- * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE.
+ * Copyright (C) 2012 University of Karlsruhe.
  */
 
 /**
  * @file
  * @brief    The main amd64 backend driver file.
- * @version  $Id: bearch_amd64.c 26909 2010-01-05 15:56:54Z matze $
  */
 #include "config.h"
 
-#include "pseudo_irg.h"
 #include "irgwalk.h"
 #include "irprog.h"
 #include "irprintf.h"
 #include "ircons.h"
 #include "irgmod.h"
+#include "irdump.h"
+#include "lower_calls.h"
 
 #include "bitset.h"
 #include "debug.h"
-
-#include "be.h"
-#include "../bearch.h"
-#include "../benode.h"
-#include "../belower.h"
-#include "../besched.h"
-#include "../beabi.h"
-#include "../bemodule.h"
-#include "../begnuas.h"
-#include "../belistsched.h"
+#include "error.h"
+
+#include "be_t.h"
+#include "bearch.h"
+#include "beirg.h"
+#include "benode.h"
+#include "belower.h"
+#include "besched.h"
+#include "beabi.h"
+#include "bemodule.h"
+#include "begnuas.h"
+#include "belistsched.h"
+#include "beflags.h"
+#include "bespillslots.h"
+#include "bespillutil.h"
+#include "bestack.h"
 
 #include "bearch_amd64_t.h"
 
 
 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
 
-static arch_irn_class_t amd64_classify(const ir_node *irn)
-{
-       (void) irn;
-       return 0;
-}
-
 static ir_entity *amd64_get_frame_entity(const ir_node *node)
 {
+       if (is_amd64_FrameAddr(node)) {
+               const amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr_const(node);
+               return attr->entity;
+
+       } else if (is_amd64_Store(node)) {
+               const amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr_const(node);
+               return attr->entity;
+
+       } else if (is_amd64_Load(node)) {
+               const amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr_const(node);
+               return attr->entity;
+       }
+
        (void) node;
        /* TODO: return the ir_entity assigned to the frame */
        return NULL;
 }
 
-static void amd64_set_frame_entity(ir_node *node, ir_entity *ent)
-{
-       (void) node;
-       (void) ent;
-       /* TODO: set the ir_entity assigned to the frame */
-}
-
 /**
  * This function is called by the generic backend to correct offsets for
  * nodes accessing the stack.
  */
 static void amd64_set_frame_offset(ir_node *irn, int offset)
 {
-       (void) irn;
-       (void) offset;
-       /* TODO: correct offset if irn accesses the stack */
+       if (is_amd64_FrameAddr(irn)) {
+               amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr(irn);
+               attr->fp_offset += offset;
+
+       } else if (is_amd64_Store(irn)) {
+               amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr(irn);
+               attr->fp_offset += offset;
+
+       } else if (is_amd64_Load(irn)) {
+               amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr(irn);
+               attr->fp_offset += offset;
+
+       }
 }
 
 static int amd64_get_sp_bias(const ir_node *irn)
@@ -93,13 +95,9 @@ static int amd64_get_sp_bias(const ir_node *irn)
 /* fill register allocator interface */
 
 static const arch_irn_ops_t amd64_irn_ops = {
-       get_amd64_in_req,
-       amd64_classify,
        amd64_get_frame_entity,
-       amd64_set_frame_entity,
        amd64_set_frame_offset,
        amd64_get_sp_bias,
-       NULL,    /* get_inverse             */
        NULL,    /* get_op_estimated_cost   */
        NULL,    /* possible_memory_operand */
        NULL,    /* perform_memory_operand  */
@@ -111,191 +109,156 @@ static const arch_irn_ops_t amd64_irn_ops = {
  * Transforms the standard firm graph into
  * a amd64 firm graph
  */
-static void amd64_prepare_graph(void *self)
+static void amd64_prepare_graph(ir_graph *irg)
 {
-       amd64_code_gen_t *cg = self;
+       amd64_transform_graph(irg);
 
-       amd64_transform_graph (cg);
+       if (be_options.dump_flags & DUMP_BE)
+               dump_ir_graph(irg, "transformed");
+}
 
-       if (cg->dump)
-               be_dump(cg->irg, "-transformed", dump_ir_block_graph_sched);
+static void amd64_before_ra(ir_graph *irg)
+{
+       be_sched_fix_flags(irg, &amd64_reg_classes[CLASS_amd64_flags], NULL, NULL);
 }
 
+static void transform_Reload(ir_node *node)
+{
+       ir_graph  *irg    = get_irn_irg(node);
+       ir_node   *block  = get_nodes_block(node);
+       dbg_info  *dbgi   = get_irn_dbg_info(node);
+       ir_node   *ptr    = get_irg_frame(irg);
+       ir_node   *mem    = get_irn_n(node, n_be_Reload_mem);
+       ir_mode   *mode   = get_irn_mode(node);
+       ir_entity *entity = be_get_frame_entity(node);
+       const arch_register_t *reg;
+       ir_node   *proj;
+       ir_node   *load;
 
+       load = new_bd_amd64_Load(dbgi, block, ptr, mem, entity);
+       sched_replace(node, load);
 
-/**
- * Called immediatly before emit phase.
- */
-static void amd64_finish_irg(void *self)
-{
-       amd64_code_gen_t *cg = self;
-       ir_graph         *irg = cg->irg;
+       proj = new_rd_Proj(dbgi, load, mode, pn_amd64_Load_res);
 
-       dump_ir_block_graph_sched(irg, "-amd64-finished");
-}
+       reg = arch_get_irn_register(node);
+       arch_set_irn_register(proj, reg);
 
+       exchange(node, proj);
+}
 
-static void amd64_before_ra(void *self)
+static void transform_Spill(ir_node *node)
 {
-       (void) self;
-       /* Some stuff you need to do after scheduling but before register allocation */
+       ir_graph  *irg    = get_irn_irg(node);
+       ir_node   *block  = get_nodes_block(node);
+       dbg_info  *dbgi   = get_irn_dbg_info(node);
+       ir_node   *ptr    = get_irg_frame(irg);
+       ir_node   *mem    = get_irg_no_mem(irg);
+       ir_node   *val    = get_irn_n(node, n_be_Spill_val);
+       //ir_mode   *mode   = get_irn_mode(val);
+       ir_entity *entity = be_get_frame_entity(node);
+       ir_node   *store;
+
+       store = new_bd_amd64_Store(dbgi, block, ptr, val, mem, entity);
+       sched_replace(node, store);
+
+       exchange(node, store);
 }
 
-static void amd64_after_ra(void *self)
+static void amd64_after_ra_walker(ir_node *block, void *data)
 {
-       (void) self;
-       /* Some stuff you need to do immediatly after register allocation */
-}
+       (void) data;
 
+       sched_foreach_reverse_safe(block, node) {
+               if (be_is_Reload(node)) {
+                       transform_Reload(node);
+               } else if (be_is_Spill(node)) {
+                       transform_Spill(node);
+               }
+       }
+}
 
+static void amd64_set_frame_entity(ir_node *node, ir_entity *entity)
+{
+       assert(be_is_Reload(node) || be_is_Spill(node));
+       be_node_set_frame_entity(node, entity);
+}
 
 /**
- * Emits the code, closes the output file and frees
- * the code generator interface.
+ * Collects nodes that need frame entities assigned.
  */
-static void amd64_emit_and_done(void *self)
+static void amd64_collect_frame_entity_nodes(ir_node *node, void *data)
 {
-       amd64_code_gen_t *cg  = self;
-       ir_graph         *irg = cg->irg;
-
-       amd64_gen_routine(cg, irg);
-
-       /* de-allocate code generator */
-       free(cg);
+       if (be_is_Reload(node) && be_get_frame_entity(node) == NULL) {
+               be_fec_env_t  *env   = (be_fec_env_t*)data;
+               const ir_mode *mode  = get_irn_mode(node);
+               int            align = get_mode_size_bytes(mode);
+               be_node_needs_frame_entity(env, node, mode, align);
+       }
 }
 
-static void *amd64_cg_init(be_irg_t *birg);
-
-static const arch_code_generator_if_t amd64_code_gen_if = {
-       amd64_cg_init,
-       NULL,                    /* get_pic_base hook */
-       NULL,                    /* before abi introduce hook */
-       amd64_prepare_graph,
-       NULL,                    /* spill hook */
-       amd64_before_ra,      /* before register allocation hook */
-       amd64_after_ra,       /* after register allocation hook */
-       amd64_finish_irg,
-       amd64_emit_and_done
-};
-
 /**
- * Initializes the code generator.
+ * Called immediatly before emit phase.
  */
-static void *amd64_cg_init(be_irg_t *birg)
+static void amd64_finish_irg(ir_graph *irg)
 {
-       const arch_env_t    *arch_env = be_get_birg_arch_env(birg);
-       amd64_isa_t      *isa      = (amd64_isa_t *) arch_env;
-       amd64_code_gen_t *cg       = XMALLOC(amd64_code_gen_t);
-
-       cg->impl     = &amd64_code_gen_if;
-       cg->irg      = be_get_birg_irg(birg);
-       cg->isa      = isa;
-       cg->birg     = birg;
-       cg->dump     = (birg->main_env->options->dump_flags & DUMP_BE) ? 1 : 0;
+       be_stack_layout_t *stack_layout = be_get_irg_stack_layout(irg);
+       bool               at_begin     = stack_layout->sp_relative ? true : false;
+       be_fec_env_t      *fec_env      = be_new_frame_entity_coalescer(irg);
 
-       return (arch_code_generator_t *)cg;
-}
+       /* create and coalesce frame entities */
+       irg_walk_graph(irg, NULL, amd64_collect_frame_entity_nodes, fec_env);
+       be_assign_entities(fec_env, amd64_set_frame_entity, at_begin);
+       be_free_frame_entity_coalescer(fec_env);
 
+       irg_block_walk_graph(irg, NULL, amd64_after_ra_walker, NULL);
 
+       /* fix stack entity offsets */
+       be_abi_fix_stack_nodes(irg);
+       be_abi_fix_stack_bias(irg);
+}
 
-const arch_isa_if_t amd64_isa_if;
+extern const arch_isa_if_t amd64_isa_if;
 static amd64_isa_t amd64_isa_template = {
        {
                &amd64_isa_if,             /* isa interface implementation */
-               &amd64_gp_regs[REG_RSP],  /* stack pointer register */
-               &amd64_gp_regs[REG_RBP],  /* base pointer register */
-               &amd64_reg_classes[CLASS_amd64_gp],  /* link pointer register class */
-               -1,                          /* stack direction */
-               2,                           /* power of two stack alignment for calls, 2^2 == 4 */
-               NULL,                        /* main environment */
-               7,                           /* costs for a spill instruction */
-               5,                           /* costs for a reload instruction */
+               N_AMD64_REGISTERS,
+               amd64_registers,
+               N_AMD64_CLASSES,
+               amd64_reg_classes,
+               &amd64_registers[REG_RSP], /* stack pointer register */
+               &amd64_registers[REG_RBP], /* base pointer register */
+               3,                         /* power of two stack alignment for calls, 2^2 == 4 */
+               7,                         /* costs for a spill instruction */
+               5,                         /* costs for a reload instruction */
+               false,                     /* no custom abi handling */
        },
 };
 
-/**
- * Initializes the backend ISA
- */
-static arch_env_t *amd64_init(FILE *outfile)
+static void amd64_init(void)
 {
-       static int run_once = 0;
-       amd64_isa_t *isa;
-
-       if(run_once)
-               return NULL;
-       run_once = 1;
-
-       isa = XMALLOC(amd64_isa_t);
-       memcpy(isa, &amd64_isa_template, sizeof(*isa));
-
-       be_emit_init(outfile);
-
        amd64_register_init();
        amd64_create_opcodes(&amd64_irn_ops);
-
-       return &isa->arch_env;
 }
 
-
-
-/**
- * Closes the output file and frees the ISA structure.
- */
-static void amd64_done(void *self)
+static void amd64_finish(void)
 {
-       amd64_isa_t *isa = self;
-
-       /* emit now all global declarations */
-       be_gas_emit_decls(isa->arch_env.main_env);
-
-       be_emit_exit();
-       free(self);
+       amd64_free_opcodes();
 }
 
-
-static unsigned amd64_get_n_reg_class(void)
+static arch_env_t *amd64_begin_codegeneration(void)
 {
-       return N_CLASSES;
-}
+       amd64_isa_t *isa = XMALLOC(amd64_isa_t);
+       *isa = amd64_isa_template;
 
-static const arch_register_class_t *amd64_get_reg_class(unsigned i)
-{
-       assert(i < N_CLASSES);
-       return &amd64_reg_classes[i];
+       return &isa->base;
 }
 
-
-
 /**
- * Get the register class which shall be used to store a value of a given mode.
- * @param self The this pointer.
- * @param mode The mode in question.
- * @return A register class which can hold values of the given mode.
+ * Closes the output file and frees the ISA structure.
  */
-static const arch_register_class_t *amd64_get_reg_class_for_mode(const ir_mode *mode)
+static void amd64_end_codegeneration(void *self)
 {
-       if (mode_is_float(mode))
-               return &amd64_reg_classes[CLASS_amd64_fp];
-       else
-               return &amd64_reg_classes[CLASS_amd64_gp];
-}
-
-
-
-typedef struct {
-       be_abi_call_flags_bits_t flags;
-       const arch_env_t *arch_env;
-       ir_graph *irg;
-} amd64_abi_env_t;
-
-static void *amd64_abi_init(const be_abi_call_t *call, const arch_env_t *arch_env, ir_graph *irg)
-{
-       amd64_abi_env_t *env = XMALLOC(amd64_abi_env_t);
-       be_abi_call_flags_t fl = be_abi_call_get_flags(call);
-       env->flags    = fl.bits;
-       env->irg      = irg;
-       env->arch_env = arch_env;
-       return env;
+       free(self);
 }
 
 /**
@@ -303,11 +266,11 @@ static void *amd64_abi_init(const be_abi_call_t *call, const arch_env_t *arch_en
  * @param self The callback object.
  * @return The between type of for that call.
  */
-static ir_type *amd64_get_between_type(void *self)
+static ir_type *amd64_get_between_type(ir_graph *irg)
 {
        static ir_type *between_type = NULL;
        static ir_entity *old_bp_ent = NULL;
-       (void) self;
+       (void) irg;
 
        if(!between_type) {
                ir_entity *ret_addr_ent;
@@ -326,89 +289,57 @@ static ir_type *amd64_get_between_type(void *self)
        return between_type;
 }
 
-/**
- * Build the prolog, return the BASE POINTER register
- */
-static const arch_register_t *amd64_abi_prologue(void *self, ir_node **mem,
-                                                    pmap *reg_map, int *stack_bias)
-{
-       amd64_abi_env_t  *env  = self;
-       const arch_env_t *aenv = env->arch_env;
-       (void) mem;
-       (void) stack_bias;
-       (void) aenv;
-       (void) reg_map;
-
-       if (!env->flags.try_omit_fp) {
-               /* FIXME: maybe later here should be some code to generate
-                * the usual abi prologue */
-               return env->arch_env->bp;
-       }
+static const be_abi_callbacks_t amd64_abi_callbacks = {
+       amd64_get_between_type,
+};
 
-       return env->arch_env->sp;
-}
+static const arch_register_t *gpreg_param_reg_std[] = {
+       &amd64_registers[REG_RDI],
+       &amd64_registers[REG_RSI],
+       &amd64_registers[REG_RDX],
+       &amd64_registers[REG_RCX],
+       &amd64_registers[REG_R8],
+       &amd64_registers[REG_R9],
+};
 
-/* Build the epilog */
-static void amd64_abi_epilogue(void *self, ir_node *bl, ir_node **mem,
-                               pmap *reg_map)
+static const arch_register_t *amd64_get_RegParam_reg(int n)
 {
-       amd64_abi_env_t  *env  = self;
-       const arch_env_t *aenv = env->arch_env;
-       ir_node          *curr_sp  = be_abi_reg_map_get(reg_map, aenv->sp);
-       ir_node          *curr_bp  = be_abi_reg_map_get(reg_map, aenv->bp);
-       (void) bl;
-       (void) mem;
-
-       if (env->flags.try_omit_fp) {
-               curr_sp = be_new_IncSP(aenv->sp, bl, curr_sp, BE_STACK_FRAME_SIZE_SHRINK, 0);
-       }
-
-       be_abi_reg_map_set(reg_map, aenv->sp, curr_sp);
-       be_abi_reg_map_set(reg_map, aenv->bp, curr_bp);
+       assert(n < 6 && n >=0 && "register param > 6 requested");
+       return gpreg_param_reg_std[n];
 }
 
-static const be_abi_callbacks_t amd64_abi_callbacks = {
-       amd64_abi_init,
-       free,
-       amd64_get_between_type,
-       amd64_abi_prologue,
-       amd64_abi_epilogue,
-};
-
 /**
  * Get the ABI restrictions for procedure calls.
  * @param self        The this pointer.
  * @param method_type The type of the method (procedure) in question.
  * @param abi         The abi object to be modified
  */
-static void amd64_get_call_abi(const void *self, ir_type *method_type,
-                           be_abi_call_t *abi)
+static void amd64_get_call_abi(ir_type *method_type, be_abi_call_t *abi)
 {
        ir_type  *tp;
        ir_mode  *mode;
        int       i, n = get_method_n_params(method_type);
-       be_abi_call_flags_t call_flags;
-       (void) self;
+       int no_reg = 0;
 
        /* set abi flags for calls */
-       call_flags.bits.left_to_right         = 0;
-       call_flags.bits.store_args_sequential = 1;
-       call_flags.bits.try_omit_fp           = 1;
-       call_flags.bits.fp_free               = 0;
-       call_flags.bits.call_has_imm          = 1;
-
-       /* set stack parameter passing style */
+       be_abi_call_flags_t call_flags = be_abi_call_get_flags(abi);
+       call_flags.call_has_imm = true;
        be_abi_call_set_flags(abi, call_flags, &amd64_abi_callbacks);
 
        for (i = 0; i < n; i++) {
-               /* TODO: implement register parameter: */
-               /* reg = get reg for param i;          */
-               /* be_abi_call_param_reg(abi, i, reg); */
-
-               /* default: all parameters on stack */
                tp   = get_method_param_type(method_type, i);
                mode = get_type_mode(tp);
-               be_abi_call_param_stack(abi, i, mode, 4, 0, 0, ABI_CONTEXT_BOTH);
+               //d// printf ("MODE %p %p XX %d\n", mode, mode_Iu, i);
+
+               if (!no_reg && i < 6 && mode_is_data (mode)) {
+                       //d// printf("TEST%d\n", i);
+                       be_abi_call_param_reg(abi, i, amd64_get_RegParam_reg (i),
+                                             ABI_CONTEXT_BOTH);
+               /* default: all parameters on stack */
+               } else {
+                       no_reg = 1;
+                       be_abi_call_param_stack(abi, i, mode, 8, 0, 0, ABI_CONTEXT_BOTH);
+               }
        }
 
        /* TODO: set correct return register */
@@ -417,65 +348,38 @@ static void amd64_get_call_abi(const void *self, ir_type *method_type,
                tp   = get_method_res_type(method_type, 0);
                mode = get_type_mode(tp);
 
-               /* FIXME: No floating point yet */
-               /* be_abi_call_res_reg(abi, 0,
-                       mode_is_float(mode) ? &amd64_fp_regs[REG_F0] : &amd64_gp_regs[REG_R0], ABI_CONTEXT_BOTH) */;
+               if (mode_is_float(mode))
+                       panic("float not supported yet");
 
                be_abi_call_res_reg(abi, 0,
-                       &amd64_gp_regs[REG_RAX], ABI_CONTEXT_BOTH);
+                       &amd64_registers[REG_RAX], ABI_CONTEXT_BOTH);
        }
 }
 
-static int amd64_to_appear_in_schedule(void *block_env, const ir_node *irn)
+static void amd64_lower_for_target(void)
 {
-       (void) block_env;
-
-       if(!is_amd64_irn(irn))
-               return -1;
-
-       return 1;
-}
+       size_t i, n_irgs = get_irp_n_irgs();
 
-/**
- * Initializes the code generator interface.
- */
-static const arch_code_generator_if_t *amd64_get_code_generator_if(
-               void *self)
-{
-       (void) self;
-       return &amd64_code_gen_if;
-}
+       /* lower compound param handling */
+       lower_calls_with_compounds(LF_RETURN_HIDDEN);
 
-list_sched_selector_t amd64_sched_selector;
-
-/**
- * Returns the reg_pressure scheduler with to_appear_in_schedule() overloaded
- */
-static const list_sched_selector_t *amd64_get_list_sched_selector(
-               const void *self, list_sched_selector_t *selector)
-{
-       (void) self;
-       (void) selector;
-
-       amd64_sched_selector = trivial_selector;
-       amd64_sched_selector.to_appear_in_schedule = amd64_to_appear_in_schedule;
-       return &amd64_sched_selector;
-}
-
-static const ilp_sched_selector_t *amd64_get_ilp_sched_selector(
-               const void *self)
-{
-       (void) self;
-       return NULL;
+       for (i = 0; i < n_irgs; ++i) {
+               ir_graph *irg = get_irp_irg(i);
+               /* Turn all small CopyBs into loads/stores, and turn all bigger
+                * CopyBs into memcpy calls, because we cannot handle CopyB nodes
+                * during code generation yet.
+                * TODO:  Adapt this once custom CopyB handling is implemented. */
+               lower_CopyB(irg, 64, 65, true);
+       }
 }
 
-/**
- * Returns the necessary byte alignment for storing a register of given class.
- */
-static int amd64_get_reg_class_alignment(const arch_register_class_t *cls)
+static int amd64_is_mux_allowed(ir_node *sel, ir_node *mux_false,
+                                ir_node *mux_true)
 {
-       ir_mode *mode = arch_register_class_mode(cls);
-       return get_mode_size_bytes(mode);
+       (void) sel;
+       (void) mux_false;
+       (void) mux_true;
+       return false;
 }
 
 /**
@@ -483,46 +387,26 @@ static int amd64_get_reg_class_alignment(const arch_register_class_t *cls)
  */
 static const backend_params *amd64_get_backend_params(void) {
        static backend_params p = {
-               0,     /* no dword lowering */
                0,     /* no inline assembly */
+               1,     /* support Rotl nodes */
+               0,     /* little endian */
+               1,     /* modulo shift is efficient */
+               0,     /* non-modulo shift is not efficient */
                NULL,  /* will be set later */
-               NULL,  /* no creator function */
-               NULL,  /* context for create_intrinsic_fkt */
-               NULL,  /* parameter for if conversion */
+               amd64_is_mux_allowed,  /* parameter for if conversion */
+               64,    /* machine size */
                NULL,  /* float arithmetic mode */
+               NULL,  /* long long type */
+               NULL,  /* unsigned long long type */
+               NULL,  /* long double type (not supported yet) */
                0,     /* no trampoline support: size 0 */
                0,     /* no trampoline support: align 0 */
                NULL,  /* no trampoline support: no trampoline builder */
-               4      /* alignment of stack parameter: typically 4 (32bit) or 8 (64bit) */
+               8      /* alignment of stack parameter: typically 4 (32bit) or 8 (64bit) */
        };
        return &p;
 }
 
-static const be_execution_unit_t ***amd64_get_allowed_execution_units(
-               const ir_node *irn)
-{
-       (void) irn;
-       /* TODO */
-       assert(0);
-       return NULL;
-}
-
-static const be_machine_t *amd64_get_machine(const void *self)
-{
-       (void) self;
-       /* TODO */
-       assert(0);
-       return NULL;
-}
-
-static ir_graph **amd64_get_backend_irg_list(const void *self,
-                                                ir_graph ***irgs)
-{
-       (void) self;
-       (void) irgs;
-       return NULL;
-}
-
 static asm_constraint_flags_t amd64_parse_asm_constraint(const char **c)
 {
        (void) c;
@@ -535,28 +419,60 @@ static int amd64_is_valid_clobber(const char *clobber)
        return 0;
 }
 
+static int amd64_register_saved_by(const arch_register_t *reg, int callee)
+{
+       switch (reg->global_index) {
+       case REG_RBX:
+       case REG_RBP:
+       case REG_R12:
+       case REG_R13:
+       case REG_R14:
+       case REG_R15:
+               return callee;
+
+       case REG_RAX:
+       case REG_RCX:
+       case REG_RDX:
+       case REG_RSI:
+       case REG_RDI:
+       case REG_R8:
+       case REG_R9:
+       case REG_R10:
+       case REG_R11:
+               return !callee;
+
+       default:
+               return 0;
+       }
+}
+
 const arch_isa_if_t amd64_isa_if = {
        amd64_init,
-       amd64_done,
-       NULL,                /* handle intrinsics */
-       amd64_get_n_reg_class,
-       amd64_get_reg_class,
-       amd64_get_reg_class_for_mode,
-       amd64_get_call_abi,
-       amd64_get_code_generator_if,
-       amd64_get_list_sched_selector,
-       amd64_get_ilp_sched_selector,
-       amd64_get_reg_class_alignment,
+       amd64_finish,
     amd64_get_backend_params,
-       amd64_get_allowed_execution_units,
-       amd64_get_machine,
-       amd64_get_backend_irg_list,
-       NULL,                    /* mark remat */
+       amd64_lower_for_target,
        amd64_parse_asm_constraint,
-       amd64_is_valid_clobber
+       amd64_is_valid_clobber,
+
+       amd64_begin_codegeneration,
+       amd64_end_codegeneration,
+       NULL,
+       amd64_get_call_abi,
+       NULL,              /* mark remat */
+       NULL,              /* get_pic_base */
+       be_new_spill,
+       be_new_reload,
+       amd64_register_saved_by,
+
+       NULL,              /* handle intrinsics */
+       NULL,              /* before_abi */
+       amd64_prepare_graph,
+       amd64_before_ra,
+       amd64_finish_irg,
+       amd64_gen_routine,
 };
 
-BE_REGISTER_MODULE_CONSTRUCTOR(be_init_arch_amd64);
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_arch_amd64)
 void be_init_arch_amd64(void)
 {
        be_register_isa_if("amd64", &amd64_isa_if);