#include "xmalloc.h"
#include "error.h"
-calling_convention_t *decide_calling_convention(ir_type *function_type)
+calling_convention_t *arm_decide_calling_convention(ir_type *function_type)
{
int stack_offset = 0;
reg_or_stackslot_t *params;
return cconv;
}
-void free_calling_convention(calling_convention_t *cconv)
+void arm_free_calling_convention(calling_convention_t *cconv)
{
free(cconv->parameters);
free(cconv->results);
* Decides what goes to register or to stack and what stack offsets/
* datatypes are used.
*/
-calling_convention_t *decide_calling_convention(ir_type *function_type);
+calling_convention_t *arm_decide_calling_convention(ir_type *function_type);
/**
* free memory used by a calling_convention_t
*/
-void free_calling_convention(calling_convention_t *cconv);
+void arm_free_calling_convention(calling_convention_t *cconv);
#endif
"\tarch_irn_add_flags(res, arch_irn_flags_modify_flags);",
emit => ". mov lr, pc\n".
". mov pc, %SO",
- mode => "mode_T",
},
# mov lr, pc\n ldr pc, XXX -- This combination is used for calls to function
custominit => "arch_irn_add_flags(res, arch_irn_flags_modify_flags);",
emit => ". mov lr, pc\n".
". ldr pc, %SO",
- mode => "mode_T",
},
Bl => {
attr => "ir_entity *entity, int symconst_offset",
custominit => "arch_irn_add_flags(res, arch_irn_flags_modify_flags);",
emit => '. bl %SC',
- mode => "mode_T",
},
# this node produces ALWAYS an empty (tempary) gp reg and cannot be CSE'd
op_flags => [ "labeled", "fragile" ],
state => "exc_pinned",
ins => [ "ptr", "val", "mem" ],
- outs => [ "mem" ],
+ outs => [ "M" ],
reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
emit => '. str%SM %S1, [%S0, #%O]',
mode => "mode_M",
ir_node *call = get_Proj_pred(get_Proj_pred(node));
ir_node *new_call = be_transform_node(call);
ir_type *function_type = get_Call_type(call);
- calling_convention_t *cconv = decide_calling_convention(function_type);
+ calling_convention_t *cconv = arm_decide_calling_convention(function_type);
const reg_or_stackslot_t *res = &cconv->results[pn];
ir_mode *mode;
int regn;
}
mode = res->reg0->reg_class->mode;
- free_calling_convention(cconv);
+ arm_free_calling_convention(cconv);
return new_r_Proj(new_call, mode, regn);
}
ir_node *new_mem = be_transform_node(mem);
dbg_info *dbgi = get_irn_dbg_info(node);
ir_type *type = get_Call_type(node);
- calling_convention_t *cconv = decide_calling_convention(type);
+ calling_convention_t *cconv = arm_decide_calling_convention(type);
int n_params = get_Call_n_params(node);
int n_param_regs = sizeof(param_regs)/sizeof(param_regs[0]);
/* max inputs: memory, callee, register arguments */
/* copy pinned attribute */
set_irn_pinned(res, get_irn_pinned(node));
- free_calling_convention(cconv);
+ arm_free_calling_convention(cconv);
return res;
}
abihelper = be_abihelper_prepare(irg);
be_collect_stacknodes(abihelper);
assert(cconv == NULL);
- cconv = decide_calling_convention(get_entity_type(entity));
+ cconv = arm_decide_calling_convention(get_entity_type(entity));
create_stacklayout(irg);
be_transform_graph(cg->irg, NULL);
be_abihelper_finish(abihelper);
abihelper = NULL;
- free_calling_convention(cconv);
+ arm_free_calling_convention(cconv);
cconv = NULL;
frame_type = get_irg_frame_type(irg);
}
}
-static void rsm_add_reg(register_state_mapping_t *rsm,
- const arch_register_t *reg, arch_irn_flags_t flags)
+static int rsm_add_reg(register_state_mapping_t *rsm,
+ const arch_register_t *reg, arch_irn_flags_t flags)
{
int input_idx = ARR_LEN(rsm->regs);
int cls_idx = reg->reg_class->index;
assert(rsm->reg_index_map[cls_idx][reg_idx] == -1);
rsm->reg_index_map[cls_idx][reg_idx] = input_idx;
ARR_APP1(reg_flag_t, rsm->regs, regflag);
+
+ if (rsm->value_map != NULL) {
+ ARR_APP1(ir_node*, rsm->value_map, NULL);
+ assert(ARR_LEN(rsm->value_map) == ARR_LEN(rsm->regs));
+ }
+ return input_idx;
}
void be_epilog_add_reg(beabi_helper_env_t *env, const arch_register_t *reg,
arch_irn_flags_t flags, ir_node *value)
{
- rsm_add_reg(&env->epilog, reg, flags);
- ARR_APP1(ir_node*, env->epilog.value_map, value);
+ int index = rsm_add_reg(&env->epilog, reg, flags);
+ rsm_set_value(&env->epilog, index, value);
}
void be_epilog_set_reg_value(beabi_helper_env_t *env,
static void add_missing_keep_walker(ir_node *node, void *data)
{
int n_outs, i;
- unsigned found_projs = 0;
+ unsigned *found_projs;
const ir_edge_t *edge;
ir_mode *mode = get_irn_mode(node);
ir_node *last_keep;
if (n_outs <= 0)
return;
- assert(n_outs < (int) sizeof(unsigned) * 8);
+ rbitset_alloca(found_projs, n_outs);
foreach_out_edge(node, edge) {
ir_node *succ = get_edge_src_irn(edge);
int pn;
pn = get_Proj_proj(succ);
assert(pn < n_outs);
- found_projs |= 1 << pn;
+ rbitset_set(found_projs, pn);
}
const arch_register_req_t *req;
const arch_register_class_t *cls;
- if (found_projs & (1 << i)) {
+ if (rbitset_is_set(found_projs, i)) {
continue;
}
} elsif($out_arity eq "dynamic") {
$out_arity = $ARITY_DYNAMIC;
}
-
+ if ($out_arity != 0 && $out_arity != 1 && !defined($known_mode)) {
+ $known_mode = "mode_T";
+ }
my $comment = $n->{"comment"};
if(!exists($n->{"comment"})) {
#include "../belower.h"
#include "../besched.h"
#include "be.h"
-#include "../beabi.h"
#include "../bemachine.h"
#include "../beilpsched.h"
#include "../bemodule.h"
*/
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 *ptr = get_irn_n(node, be_pos_Spill_frame);
ir_node *mem = get_irn_n(node, be_pos_Reload_mem);
ir_mode *mode = get_irn_mode(node);
ir_entity *entity = be_get_frame_entity(node);
*/
static void transform_Spill(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 *ptr = get_irn_n(node, be_pos_Spill_frame);
ir_node *mem = new_NoMem();
ir_node *val = get_irn_n(node, be_pos_Spill_val);
ir_mode *mode = get_irn_mode(val);
const arch_isa_if_t sparc_isa_if;
static sparc_isa_t sparc_isa_template = {
{
- &sparc_isa_if, /* isa interface implementation */
- &sparc_gp_regs[REG_SP], /* stack pointer register */
- &sparc_gp_regs[REG_FP], /* base pointer register */
- &sparc_reg_classes[CLASS_sparc_gp], /* link pointer register class */
- -1, /* stack direction */
- 3, /* 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 */
- false, /* no custom abi handling */
+ &sparc_isa_if, /* isa interface implementation */
+ &sparc_gp_regs[REG_SP], /* stack pointer register */
+ &sparc_gp_regs[REG_FRAME_POINTER], /* base pointer register */
+ &sparc_reg_classes[CLASS_sparc_gp], /* link pointer register class */
+ -1, /* stack direction */
+ 3, /* power of two stack alignment
+ for calls */
+ NULL, /* main environment */
+ 7, /* costs for a spill instruction */
+ 5, /* costs for a reload instruction */
+ true, /* custom abi handling */
},
NULL /* current code generator */
};
return &sparc_reg_classes[CLASS_sparc_gp];
}
-
-
-typedef struct {
- be_abi_call_flags_bits_t flags;
- ir_graph *irg;
-} sparc_abi_env_t;
-
-static void *sparc_abi_init(const be_abi_call_t *call, ir_graph *irg)
-{
- sparc_abi_env_t *env = XMALLOC(sparc_abi_env_t);
- be_abi_call_flags_t fl = be_abi_call_get_flags(call);
- env->flags = fl.bits;
- env->irg = irg;
- return env;
-}
-
-/**
- * Get the between type for that call.
- * @param self The callback object.
- * @return The between type of for that call.
- */
-static ir_type *sparc_get_between_type(void *self)
-{
- static ir_type *between_type = NULL;
- (void) self;
-
- if (between_type == NULL) {
- between_type = new_type_class(new_id_from_str("sparc_between_type"));
- set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE);
- }
-
- return between_type;
-}
-
-
-/**
- * Build the prolog, return the BASE POINTER register
- */
-static const arch_register_t *sparc_abi_prologue(void *self, ir_node **mem,
- pmap *reg_map, int *stack_bias)
-{
- sparc_abi_env_t *env = self;
- ir_node *block = get_irg_start_block(env->irg);
- const arch_register_t *fp = &sparc_gp_regs[REG_FP];
- const arch_register_t *sp = &sparc_gp_regs[REG_SP];
-
- // sp
- ir_node *sp_proj = be_abi_reg_map_get(reg_map, sp);
-
-
- //ir_type *frame_type = get_irg_frame_type(env->irg);
- //frame_alloc_area(frame_type, reserved_stack_size, 1, 1);
-
- // alloc min required stack space
- // TODO: the min stacksize depends on wether this is a leaf procedure or not
- ir_node *save = new_bd_sparc_Save(NULL, block, sp_proj, *mem, SPARC_MIN_STACKSIZE);
-
- (void) reg_map;
- (void) mem;
- (void) stack_bias;
-
- sp_proj = new_r_Proj(save, sp->reg_class->mode, pn_sparc_Save_stack);
- *mem = new_r_Proj(save, mode_M, pn_sparc_Save_mem);
-
- arch_set_irn_register(sp_proj, sp);
- be_abi_reg_map_set(reg_map, sp, sp_proj);
-
- // we always have a framepointer
- return fp;
-}
-
-/* Build the epilog */
-static void sparc_abi_epilogue(void *self, ir_node *bl, ir_node **mem,
- pmap *reg_map)
-{
- (void) self;
- (void) bl;
- (void) mem;
- (void) reg_map;
-}
-
-static const be_abi_callbacks_t sparc_abi_callbacks = {
- sparc_abi_init,
- free,
- sparc_get_between_type,
- sparc_abi_prologue,
- sparc_abi_epilogue,
-};
-
-static const arch_register_t *gp_param_out_regs[] = {
- &sparc_gp_regs[REG_O0],
- &sparc_gp_regs[REG_O1],
- &sparc_gp_regs[REG_O2],
- &sparc_gp_regs[REG_O3],
- &sparc_gp_regs[REG_O4],
- &sparc_gp_regs[REG_O5],
-};
-
-static const arch_register_t *gp_param_in_regs[] = {
- &sparc_gp_regs[REG_I0],
- &sparc_gp_regs[REG_I1],
- &sparc_gp_regs[REG_I2],
- &sparc_gp_regs[REG_I3],
- &sparc_gp_regs[REG_I4],
- &sparc_gp_regs[REG_I5],
-};
-
-/**
- * get register for outgoing parameters 1-6
- */
-static const arch_register_t *sparc_get_RegParamOut_reg(int n)
-{
- assert(n < 6 && n >=0 && "trying to get (out) register for param >= 6");
- return gp_param_out_regs[n];
-}
-
-/**
- * get register for incoming parameters 1-6
- */
-static const arch_register_t *sparc_get_RegParamIn_reg(int n)
-{
- assert(n < 6 && n >=0 && "trying to get (in) register for param >= 6");
- return gp_param_in_regs[n];
-}
-
-/**
- * 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 sparc_get_call_abi(const void *self, 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;
-
- /* 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 = 0;
- call_flags.bits.fp_free = 0;
- call_flags.bits.call_has_imm = 1;
-
- /* set stack parameter passing style */
- be_abi_call_set_flags(abi, call_flags, &sparc_abi_callbacks);
-
- for (i = 0; i < n; i++) {
- ir_type *type = get_method_param_type(method_type, i);
- ir_mode *mode = get_type_mode(type);
-
- if (mode_is_float(mode) || i >= 6) {
- unsigned align = get_type_size_bytes(type);
- be_abi_call_param_stack(abi, i, mode, align, 0, 0,
- ABI_CONTEXT_BOTH);
- continue;
- }
-
- /* pass integer params 0-5 via registers.
- * On sparc we need to set the ABI context since register names of
- * parameters change to i0-i5 if we are the callee */
- be_abi_call_param_reg(abi, i, sparc_get_RegParamOut_reg(i),
- ABI_CONTEXT_CALLER);
- be_abi_call_param_reg(abi, i, sparc_get_RegParamIn_reg(i),
- ABI_CONTEXT_CALLEE);
- }
-
- n = get_method_n_ress(method_type);
- /* more than 1 result not supported */
- assert(n <= 1);
- for (i = 0; i < n; ++i) {
- tp = get_method_res_type(method_type, i);
- mode = get_type_mode(tp);
-
- /* set return value register: return value is in i0 resp. f0 */
- if (mode_is_float(mode)) {
- be_abi_call_res_reg(abi, i, &sparc_fp_regs[REG_F0],
- ABI_CONTEXT_BOTH);
- } else {
- be_abi_call_res_reg(abi, i, &sparc_gp_regs[REG_I0],
- ABI_CONTEXT_CALLEE);
- be_abi_call_res_reg(abi, i, &sparc_gp_regs[REG_O0],
- ABI_CONTEXT_CALLER);
- }
- }
-}
-
static int sparc_to_appear_in_schedule(void *block_env, const ir_node *irn)
{
(void) block_env;
sparc_get_n_reg_class,
sparc_get_reg_class,
sparc_get_reg_class_for_mode,
- sparc_get_call_abi,
+ NULL,
sparc_get_code_generator_if,
sparc_get_list_sched_selector,
sparc_get_ilp_sched_selector,
--- /dev/null
+/*
+ * 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.
+ */
+
+/**
+ * @file
+ * @brief calling convention helpers
+ * @author Matthias Braun
+ * @version $Id$
+ */
+#include "config.h"
+
+#include "sparc_cconv.h"
+#include "irmode.h"
+#include "typerep.h"
+#include "xmalloc.h"
+#include "error.h"
+
+static const arch_register_t *map_i_to_o_reg(const arch_register_t *reg)
+{
+ unsigned idx = arch_register_get_index(reg);
+ assert(REG_I0 <= idx && idx <= REG_I7);
+ idx += REG_O0 - REG_I0;
+ assert(REG_O0 <= idx && idx <= REG_O7);
+ return &sparc_gp_regs[idx];
+}
+
+calling_convention_t *sparc_decide_calling_convention(ir_type *function_type,
+ bool caller)
+{
+ int stack_offset = 0;
+ reg_or_stackslot_t *params;
+ reg_or_stackslot_t *results;
+ int n_param_regs
+ = sizeof(param_regs)/sizeof(param_regs[0]);
+ int n_float_result_regs
+ = sizeof(float_result_regs)/sizeof(float_result_regs[0]);
+ int n_params;
+ int n_results;
+ int i;
+ int regnum;
+ int float_regnum;
+ calling_convention_t *cconv;
+
+ /* determine how parameters are passed */
+ n_params = get_method_n_params(function_type);
+ regnum = 0;
+ params = XMALLOCNZ(reg_or_stackslot_t, n_params);
+
+ for (i = 0; i < n_params; ++i) {
+ ir_type *param_type = get_method_param_type(function_type,i);
+ ir_mode *mode = get_type_mode(param_type);
+ int bits = get_mode_size_bits(mode);
+ reg_or_stackslot_t *param = ¶ms[i];
+ param->type = param_type;
+
+ if (regnum < n_param_regs) {
+ const arch_register_t *reg = param_regs[regnum++];
+ if (caller)
+ reg = map_i_to_o_reg(reg);
+ param->reg0 = reg;
+ } else {
+ param->offset = stack_offset;
+ /* increase offset 4 bytes so everything is aligned */
+ stack_offset += bits > 32 ? bits/8 : 4;
+ continue;
+ }
+
+ /* we might need a 2nd 32bit component (for 64bit or double values) */
+ if (bits > 32) {
+ if (bits > 64)
+ panic("only 32 and 64bit modes supported in sparc backend");
+
+ if (regnum < n_param_regs) {
+ const arch_register_t *reg = param_regs[regnum++];
+ if (caller)
+ reg = map_i_to_o_reg(reg);
+ param->reg1 = reg;
+ } else {
+ ir_mode *mode = param_regs[0]->reg_class->mode;
+ ir_type *type = get_type_for_mode(mode);
+ param->type = type;
+ param->offset = stack_offset;
+ assert(get_mode_size_bits(mode) == 32);
+ stack_offset += 4;
+ }
+ }
+ }
+
+ /* determine how results are passed */
+ n_results = get_method_n_ress(function_type);
+ regnum = 0;
+ float_regnum = 0;
+ results = XMALLOCNZ(reg_or_stackslot_t, n_results);
+ for (i = 0; i < n_results; ++i) {
+ ir_type *result_type = get_method_res_type(function_type, i);
+ ir_mode *result_mode = get_type_mode(result_type);
+ reg_or_stackslot_t *result = &results[i];
+
+ if (mode_is_float(result_mode)) {
+ if (float_regnum >= n_float_result_regs) {
+ panic("Too many float results for sparc backend");
+ } else {
+ const arch_register_t *reg = float_result_regs[float_regnum++];
+ result->reg0 = reg;
+ }
+ } else {
+ if (get_mode_size_bits(result_mode) > 32) {
+ panic("Results with more than 32bits not supported by sparc backend yet");
+ }
+
+ if (regnum >= n_param_regs) {
+ panic("Too many results for sparc backend");
+ } else {
+ const arch_register_t *reg = param_regs[regnum++];
+ if (caller)
+ reg = map_i_to_o_reg(reg);
+ result->reg0 = reg;
+ }
+ }
+ }
+
+ cconv = XMALLOCZ(calling_convention_t);
+ cconv->parameters = params;
+ cconv->param_stack_size = stack_offset;
+ cconv->results = results;
+
+ return cconv;
+}
+
+void sparc_free_calling_convention(calling_convention_t *cconv)
+{
+ free(cconv->parameters);
+ free(cconv->results);
+ free(cconv);
+}
--- /dev/null
+/*
+ * Copyright (C) 1995-2010 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.
+ */
+
+/**
+ * @file
+ * @brief support functions for calling conventions
+ * @author Matthias Braun
+ * @version $Id$
+ */
+#ifndef FIRM_BE_SPARC_SPARC_CCONV_H
+#define FIRM_BE_SPARC_SPARC_CCONV_H
+
+#include "firm_types.h"
+#include "../be_types.h"
+#include "gen_sparc_regalloc_if.h"
+
+static const arch_register_t *const caller_saves[] = {
+ &sparc_gp_regs[REG_G1],
+ &sparc_gp_regs[REG_G2],
+ &sparc_gp_regs[REG_G3],
+ &sparc_gp_regs[REG_G4],
+ &sparc_gp_regs[REG_O0],
+ &sparc_gp_regs[REG_O1],
+ &sparc_gp_regs[REG_O2],
+ &sparc_gp_regs[REG_O3],
+ &sparc_gp_regs[REG_O4],
+ &sparc_gp_regs[REG_O5],
+
+ &sparc_fp_regs[REG_F0],
+ &sparc_fp_regs[REG_F1],
+ &sparc_fp_regs[REG_F2],
+ &sparc_fp_regs[REG_F3],
+ &sparc_fp_regs[REG_F4],
+ &sparc_fp_regs[REG_F5],
+ &sparc_fp_regs[REG_F6],
+ &sparc_fp_regs[REG_F7],
+ &sparc_fp_regs[REG_F8],
+ &sparc_fp_regs[REG_F9],
+ &sparc_fp_regs[REG_F10],
+ &sparc_fp_regs[REG_F11],
+ &sparc_fp_regs[REG_F12],
+ &sparc_fp_regs[REG_F13],
+ &sparc_fp_regs[REG_F14],
+ &sparc_fp_regs[REG_F15],
+ &sparc_fp_regs[REG_F16],
+ &sparc_fp_regs[REG_F17],
+ &sparc_fp_regs[REG_F18],
+ &sparc_fp_regs[REG_F19],
+ &sparc_fp_regs[REG_F20],
+ &sparc_fp_regs[REG_F21],
+ &sparc_fp_regs[REG_F22],
+ &sparc_fp_regs[REG_F23],
+ &sparc_fp_regs[REG_F24],
+ &sparc_fp_regs[REG_F25],
+ &sparc_fp_regs[REG_F26],
+ &sparc_fp_regs[REG_F27],
+ &sparc_fp_regs[REG_F28],
+ &sparc_fp_regs[REG_F29],
+ &sparc_fp_regs[REG_F30],
+ &sparc_fp_regs[REG_F31],
+};
+
+static const arch_register_t* const param_regs[] = {
+ &sparc_gp_regs[REG_I0],
+ &sparc_gp_regs[REG_I1],
+ &sparc_gp_regs[REG_I2],
+ &sparc_gp_regs[REG_I3],
+ &sparc_gp_regs[REG_I4],
+ &sparc_gp_regs[REG_I5],
+};
+
+static const arch_register_t* const float_result_regs[] = {
+ &sparc_fp_regs[REG_F0],
+ &sparc_fp_regs[REG_F1],
+ &sparc_fp_regs[REG_F2],
+ &sparc_fp_regs[REG_F3],
+};
+
+/** information about a single parameter or result */
+typedef struct reg_or_stackslot_t
+{
+ const arch_register_t *reg0; /**< if != NULL, the first register used for
+ this parameter. */
+ const arch_register_t *reg1; /**< if != NULL, the second register used. */
+ ir_type *type; /**< indicates that an entity of the specific
+ type is needed */
+ int offset; /**< if transmitted via stack, the offset for
+ this parameter. */
+ ir_entity *entity; /**< entity in frame type */
+} reg_or_stackslot_t;
+
+/** The calling convention info for one call site. */
+typedef struct calling_convention_t
+{
+ reg_or_stackslot_t *parameters; /**< parameter info. */
+ int param_stack_size; /**< stack size for parameters */
+ reg_or_stackslot_t *results; /**< result info. */
+} calling_convention_t;
+
+/**
+ * determine how function parameters and return values are passed.
+ * Decides what goes to register or to stack and what stack offsets/
+ * datatypes are used.
+ * @param caller true for convention for the caller, false for callee
+ */
+calling_convention_t *sparc_decide_calling_convention(ir_type *function_type,
+ bool caller);
+
+/**
+ * free memory used by a calling_convention_t
+ */
+void sparc_free_calling_convention(calling_convention_t *cconv);
+
+#endif
#include "sparc_new_nodes.h"
#include "gen_sparc_regalloc_if.h"
-
-#define SNPRINTF_BUF_LEN 128
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
/**
/**
* Emits code for Call node
*/
-static void emit_be_Call(const ir_node *irn)
+static void emit_sparc_Call(const ir_node *node)
{
- ir_entity *entity = be_Call_get_entity(irn);
+ const sparc_attr_t *attr = get_sparc_attr_const(node);
+ ir_entity *entity = attr->immediate_value_entity;
+ be_emit_cstring("\tcall ");
if (entity != NULL) {
- be_emit_cstring("\tcall ");
sparc_emit_entity(entity);
be_emit_cstring(", 0");
- be_emit_finish_line_gas(irn);
- be_emit_cstring("\tnop");
- be_emit_pad_comment();
- be_emit_cstring("/* TODO: use delay slot */\n");
} else {
- be_emit_cstring("\tnop\n");
- be_emit_pad_comment();
- be_emit_cstring("/* TODO: Entity == NULL */\n");
- be_emit_finish_line_gas(irn);
+ int last = get_irn_arity(node);
+ sparc_emit_source_register(node, last-1);
}
+ be_emit_finish_line_gas(node);
+
+ /* fill delay slot */
+ be_emit_cstring("\tnop");
+ be_emit_finish_line_gas(node);
}
/**
sparc_register_spec_emitters();
/* custom emitter */
- set_emitter(op_be_Call, emit_be_Call);
set_emitter(op_be_Copy, emit_be_Copy);
set_emitter(op_be_CopyKeep, emit_be_Copy);
set_emitter(op_be_IncSP, emit_be_IncSP);
set_emitter(op_be_Perm, emit_be_Perm);
set_emitter(op_be_Return, emit_be_Return);
set_emitter(op_sparc_BXX, emit_sparc_BXX);
+ set_emitter(op_sparc_Call, emit_sparc_Call);
set_emitter(op_sparc_Div, emit_sparc_Div);
set_emitter(op_sparc_FrameAddr, emit_sparc_FrameAddr);
set_emitter(op_sparc_HiImm, emit_sparc_HiImm);
return attr->in_req;
}
+void set_sparc_in_req_all(ir_node *node, const arch_register_req_t **reqs)
+{
+ sparc_attr_t *attr = get_sparc_attr(node);
+ attr->in_req = reqs;
+}
+
/**
* Returns the argument register requirement at position pos of an sparc node.
*/
*/
const arch_register_req_t **get_sparc_in_req_all(const ir_node *node);
+void set_sparc_in_req_all(ir_node *node, const arch_register_req_t **reqs);
+
/**
* Returns the argument register requirements of an sparc node.
*/
const arch_register_req_t **in_req; /**< register requirements for arguments */
int immediate_value; /* immediate values */
bool is_load_store;
+
+ ir_entity *immediate_value_entity; /* hack for now */
};
/**
{ name => "i3", realname => "i3", type => 0 }, # param 4
{ name => "i4", realname => "i4", type => 0 }, # param 5
{ name => "i5", realname => "i5", type => 0 }, # param 6
- { name => "fp", realname => "fp", type => $ignore }, # our framepointer
+ { name => "frame_pointer", realname => "fp", type => $ignore }, # our framepointer
{ name => "i7", realname => "i7", type => $ignore }, # return address - 8
{ mode => $mode_gp }
],
{ mode => $mode_flags, flags => "manual_ra" }
],
# fp registers can be accessed any time
- fp => [
+ fp => [
{ name => "f0", type => $caller_save },
{ name => "f1", type => $caller_save },
{ name => "f2", type => $caller_save },
%emit_templates = (
# emit source reg or imm dep. on node's arity
- RI => "${arch}_emit_reg_or_imm(node, -1);",
+ RI => "${arch}_emit_reg_or_imm(node, -1);",
R1I => "${arch}_emit_reg_or_imm(node, 0);",
R2I => "${arch}_emit_reg_or_imm(node, 1);",
R3I => "${arch}_emit_reg_or_imm(node, 2);",
-# simple reg emitters
- S1 => "${arch}_emit_source_register(node, 0);",
- S2 => "${arch}_emit_source_register(node, 1);",
- S3 => "${arch}_emit_source_register(node, 2);",
- S4 => "${arch}_emit_source_register(node, 3);",
- S5 => "${arch}_emit_source_register(node, 4);",
- S6 => "${arch}_emit_source_register(node, 5);",
- D1 => "${arch}_emit_dest_register(node, 0);",
- D2 => "${arch}_emit_dest_register(node, 1);",
- D3 => "${arch}_emit_dest_register(node, 2);",
- D4 => "${arch}_emit_dest_register(node, 3);",
- D5 => "${arch}_emit_dest_register(node, 4);",
- D6 => "${arch}_emit_dest_register(node, 5);",
-# more custom emitters
- C => "${arch}_emit_immediate(node);",
+ S1 => "${arch}_emit_source_register(node, 0);",
+ S2 => "${arch}_emit_source_register(node, 1);",
+ S3 => "${arch}_emit_source_register(node, 2);",
+ S4 => "${arch}_emit_source_register(node, 3);",
+ S5 => "${arch}_emit_source_register(node, 4);",
+ S6 => "${arch}_emit_source_register(node, 5);",
+ D1 => "${arch}_emit_dest_register(node, 0);",
+ D2 => "${arch}_emit_dest_register(node, 1);",
+ D3 => "${arch}_emit_dest_register(node, 2);",
+ D4 => "${arch}_emit_dest_register(node, 3);",
+ D5 => "${arch}_emit_dest_register(node, 4);",
+ D6 => "${arch}_emit_dest_register(node, 5);",
+ IM => "${arch}_emit_immediate(node);",
LM => "${arch}_emit_load_mode(node);",
SM => "${arch}_emit_store_mode(node);",
- EXTPREF => "${arch}_emit_mode_sign_prefix(node);",
+ EXTPREF => "${arch}_emit_mode_sign_prefix(node);",
FPM => "${arch}_emit_fp_mode_suffix(node);",
- FPLM => "${arch}_emit_fp_load_mode(node);",
- FPSM => "${arch}_emit_fp_store_mode(node);",
- O => "${arch}_emit_offset(node);",
+ FPLM => "${arch}_emit_fp_load_mode(node);",
+ FPSM => "${arch}_emit_fp_store_mode(node);",
+ O => "${arch}_emit_offset(node);",
);
$default_attr_type = "sparc_attr_t";
mode => "mode_M",
state => "exc_pinned",
ins => [ "ptr", "val", "mem" ],
- outs => [ "mem" ],
+ outs => [ "M" ],
reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
attr_type => "sparc_load_store_attr_t",
attr => "ir_mode *ls_mode, ir_entity *entity, int entity_sign, long offset, bool is_frame_entity",
Save => {
reg_req => {
in => [ "sp", "none"],
- out => [ "sp:I|S","none" ]
+ out => [ "sp:I|S", "frame_pointer:I", "none" ]
},
ins => [ "stack", "mem" ],
- outs => [ "stack", "mem" ],
+ outs => [ "stack", "frame", "mem" ],
attr => "int initial_stacksize",
attr_type => "sparc_save_attr_t",
init_attr => "\tinit_sparc_save_attr(res, initial_stacksize);",
mode => "mode_X",
},
+Call => {
+ irn_flags => [ "modify_flags" ],
+ state => "exc_pinned",
+ arity => "variable",
+ out_arity => "variable",
+ constructors => {
+ imm => {
+ attr => "ir_entity *entity, long offset",
+ custominit => "get_sparc_attr(res)->immediate_value_entity = entity;",
+ arity => "variable",
+ out_arity => "variable",
+ },
+ reg => {
+ arity => "variable",
+ out_arity => "variable",
+ }
+ },
+},
+
Cmp => {
irn_flags => [ "rematerializable", "modify_flags" ],
emit => '. cmp %S1, %R2I',
emit => '. ld [%S1%O], %D1'
},
+Stf => {
+ op_flags => [ "labeled", "fragile" ],
+ state => "exc_pinned",
+ ins => [ "ptr", "val", "mem" ],
+ outs => [ "M" ],
+ reg_req => { in => [ "gp", "fp", "none" ], out => [ "none" ] },
+ attr_type => "sparc_load_store_attr_t",
+ attr => "ir_mode *ls_mode, ir_entity *entity, int entity_sign, long offset, bool is_frame_entity",
+ emit => '. st %S2, [%S1%O]',
+ mode => 'mode_M',
+},
+
); # end of %nodes
* @brief code selection (transform FIRM into SPARC FIRM)
* @version $Id$
*/
-
#include "config.h"
#include "irnode_t.h"
#include "../beirg.h"
#include "../beutil.h"
#include "../betranshlp.h"
+#include "../beabihelper.h"
#include "bearch_sparc_t.h"
#include "sparc_nodes_attr.h"
#include "gen_sparc_new_nodes.h"
#include "gen_sparc_regalloc_if.h"
+#include "sparc_cconv.h"
#include <limits.h>
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
-static sparc_code_gen_t *env_cg;
+static sparc_code_gen_t *env_cg;
+static beabi_helper_env_t *abihelper;
+static const arch_register_t *sp_reg = &sparc_gp_regs[REG_SP];
+static const arch_register_t *fp_reg = &sparc_gp_regs[REG_FRAME_POINTER];
+static calling_convention_t *cconv = NULL;
+static ir_mode *mode_gp;
+static ir_mode *mode_fp;
+static pmap *node_to_stack;
static ir_node *gen_SymConst(ir_node *node);
if (mode_is_reference(mode)) {
/* SPARC V8 is 32bit, so we can safely convert a reference tarval into Iu */
- assert(get_mode_size_bits(mode) == get_mode_size_bits(mode_Iu));
- tv = tarval_convert_to(tv, mode_Iu);
+ assert(get_mode_size_bits(mode) == get_mode_size_bits(mode_gp));
+ tv = tarval_convert_to(tv, mode_gp);
}
value = get_tarval_long(tv);
mul = gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Mul_reg, new_bd_sparc_Mul_imm);
arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
- proj_res_low = new_rd_Proj(dbgi, mul, mode_Iu, pn_sparc_Mul_low);
+ proj_res_low = new_rd_Proj(dbgi, mul, mode_gp, pn_sparc_Mul_low);
return proj_res_low;
}
assert(mode_is_data(mode));
mul = gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Mulh_reg, new_bd_sparc_Mulh_imm);
//arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
- proj_res_hi = new_rd_Proj(dbgi, mul, mode_Iu, pn_sparc_Mulh_low);
+ proj_res_hi = new_rd_Proj(dbgi, mul, mode_gp, pn_sparc_Mulh_low);
return proj_res_hi;
}
ir_mode *mode = get_irn_mode(result);
if (mode_needs_gp_reg(mode)) {
- set_irn_mode(node, mode_Iu);
+ set_irn_mode(node, mode_gp);
}
return result;
panic("Unexpected Unknown mode");
}
+/**
+ * Produces the type which sits between the stack args and the locals on the
+ * stack.
+ */
+static ir_type *sparc_get_between_type(void)
+{
+ static ir_type *between_type = NULL;
+
+ if (between_type == NULL) {
+ between_type = new_type_class(new_id_from_str("sparc_between_type"));
+ set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE);
+ }
+
+ return between_type;
+}
+
+static void create_stacklayout(ir_graph *irg)
+{
+ ir_entity *entity = get_irg_entity(irg);
+ ir_type *function_type = get_entity_type(entity);
+ be_stack_layout_t *layout = be_get_irg_stack_layout(irg);
+ ir_type *arg_type;
+ int p;
+ int n_params;
+
+ /* calling conventions must be decided by now */
+ assert(cconv != NULL);
+
+ /* construct argument type */
+ arg_type = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8)));
+ n_params = get_method_n_params(function_type);
+ for (p = 0; p < n_params; ++p) {
+ reg_or_stackslot_t *param = &cconv->parameters[p];
+ char buf[128];
+ ident *id;
+
+ if (param->type == NULL)
+ continue;
+
+ snprintf(buf, sizeof(buf), "param_%d", p);
+ id = new_id_from_str(buf);
+ param->entity = new_entity(arg_type, id, param->type);
+ set_entity_offset(param->entity, param->offset);
+ }
+
+ memset(layout, 0, sizeof(*layout));
+
+ layout->frame_type = get_irg_frame_type(irg);
+ layout->between_type = sparc_get_between_type();
+ layout->arg_type = arg_type;
+ layout->initial_offset = 0;
+ layout->initial_bias = 0;
+ layout->stack_dir = -1;
+ layout->sp_relative = false;
+
+ assert(N_FRAME_TYPES == 3);
+ layout->order[0] = layout->frame_type;
+ layout->order[1] = layout->between_type;
+ layout->order[2] = layout->arg_type;
+}
+
+/**
+ * transform the start node to the prolog code + initial barrier
+ */
+static ir_node *gen_Start(ir_node *node)
+{
+ ir_graph *irg = get_irn_irg(node);
+ ir_entity *entity = get_irg_entity(irg);
+ ir_type *function_type = get_entity_type(entity);
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *mem;
+ ir_node *start;
+ ir_node *sp;
+ ir_node *fp;
+ ir_node *barrier;
+ ir_node *save;
+ int i;
+
+ /* stackpointer is important at function prolog */
+ be_prolog_add_reg(abihelper, sp_reg,
+ arch_register_req_type_produces_sp | arch_register_req_type_ignore);
+ /* function parameters in registers */
+ for (i = 0; i < get_method_n_params(function_type); ++i) {
+ const reg_or_stackslot_t *param = &cconv->parameters[i];
+ if (param->reg0 != NULL)
+ be_prolog_add_reg(abihelper, param->reg0, 0);
+ if (param->reg1 != NULL)
+ be_prolog_add_reg(abihelper, param->reg1, 0);
+ }
+
+ start = be_prolog_create_start(abihelper, dbgi, new_block);
+
+ mem = be_prolog_get_memory(abihelper);
+ sp = be_prolog_get_reg_value(abihelper, sp_reg);
+ save = new_bd_sparc_Save(NULL, block, sp, mem, SPARC_MIN_STACKSIZE);
+ fp = new_r_Proj(save, mode_gp, pn_sparc_Save_frame);
+ sp = new_r_Proj(save, mode_gp, pn_sparc_Save_stack);
+ mem = new_r_Proj(save, mode_M, pn_sparc_Save_mem);
+ arch_set_irn_register(fp, fp_reg);
+ arch_set_irn_register(sp, sp_reg);
+
+ be_prolog_add_reg(abihelper, fp_reg, arch_register_req_type_ignore);
+ be_prolog_set_reg_value(abihelper, fp_reg, fp);
+
+ sp = be_new_IncSP(sp_reg, new_block, sp, BE_STACK_FRAME_SIZE_EXPAND, 0);
+ be_prolog_set_reg_value(abihelper, sp_reg, sp);
+ be_prolog_set_memory(abihelper, mem);
+
+ barrier = be_prolog_create_barrier(abihelper, new_block);
+
+ return barrier;
+}
+
+static ir_node *get_stack_pointer_for(ir_node *node)
+{
+ /* get predecessor in stack_order list */
+ ir_node *stack_pred = be_get_stack_pred(abihelper, node);
+ ir_node *stack_pred_transformed;
+ ir_node *stack;
+
+ if (stack_pred == NULL) {
+ /* first stack user in the current block. We can simply use the
+ * initial sp_proj for it */
+ ir_node *sp_proj = be_prolog_get_reg_value(abihelper, sp_reg);
+ return sp_proj;
+ }
+
+ stack_pred_transformed = be_transform_node(stack_pred);
+ stack = pmap_get(node_to_stack, stack_pred);
+ if (stack == NULL) {
+ return get_stack_pointer_for(stack_pred);
+ }
+
+ return stack;
+}
+
+/**
+ * transform a Return node into epilogue code + return statement
+ */
+static ir_node *gen_Return(ir_node *node)
+{
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *mem = get_Return_mem(node);
+ ir_node *new_mem = be_transform_node(mem);
+ ir_node *sp_proj = get_stack_pointer_for(node);
+ int n_res = get_Return_n_ress(node);
+ ir_node *bereturn;
+ ir_node *incsp;
+ int i;
+
+ be_epilog_begin(abihelper);
+ be_epilog_set_memory(abihelper, new_mem);
+ /* connect stack pointer with initial stack pointer. fix_stack phase
+ will later serialize all stack pointer adjusting nodes */
+ be_epilog_add_reg(abihelper, sp_reg,
+ arch_register_req_type_produces_sp | arch_register_req_type_ignore,
+ sp_proj);
+
+ /* result values */
+ for (i = 0; i < n_res; ++i) {
+ ir_node *res_value = get_Return_res(node, i);
+ ir_node *new_res_value = be_transform_node(res_value);
+ const reg_or_stackslot_t *slot = &cconv->results[i];
+ const arch_register_t *reg = slot->reg0;
+ assert(slot->reg1 == NULL);
+ be_epilog_add_reg(abihelper, reg, 0, new_res_value);
+ }
+
+ /* create the barrier before the epilog code */
+ be_epilog_create_barrier(abihelper, new_block);
+
+ /* epilog code: an incsp */
+ sp_proj = be_epilog_get_reg_value(abihelper, sp_reg);
+ incsp = be_new_IncSP(sp_reg, new_block, sp_proj,
+ BE_STACK_FRAME_SIZE_SHRINK, 0);
+ be_epilog_set_reg_value(abihelper, sp_reg, incsp);
+
+ bereturn = be_epilog_create_return(abihelper, dbgi, new_block);
+
+ return bereturn;
+}
+
+static ir_node *bitcast_int_to_float(dbg_info *dbgi, ir_node *block,
+ ir_node *node)
+{
+ ir_graph *irg = current_ir_graph;
+ ir_node *stack = get_irg_frame(irg);
+ ir_node *nomem = new_NoMem();
+ ir_node *st = new_bd_sparc_St(dbgi, block, stack, node, nomem, mode_gp,
+ NULL, 0, 0, true);
+ ir_node *ldf;
+ set_irn_pinned(st, op_pin_state_floats);
+
+ ldf = new_bd_sparc_Ldf(dbgi, block, stack, st, mode_fp, NULL, 0, 0, true);
+ set_irn_pinned(ldf, op_pin_state_floats);
+
+ return new_Proj(ldf, mode_fp, pn_sparc_Ldf_res);
+}
+
+static ir_node *bitcast_float_to_int(dbg_info *dbgi, ir_node *block,
+ ir_node *node)
+{
+ ir_graph *irg = current_ir_graph;
+ ir_node *stack = get_irg_frame(irg);
+ ir_node *nomem = new_NoMem();
+ ir_node *stf = new_bd_sparc_Stf(dbgi, block, stack, node, nomem, mode_fp,
+ NULL, 0, 0, true);
+ ir_node *ld;
+ set_irn_pinned(stf, op_pin_state_floats);
+
+ ld = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp, NULL, 0, 0, true);
+ set_irn_pinned(ld, op_pin_state_floats);
+
+ return new_Proj(ld, mode_fp, pn_sparc_Ld_res);
+}
+
+static ir_node *gen_Call(ir_node *node)
+{
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *callee = get_Call_ptr(node);
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ ir_node *mem = get_Call_mem(node);
+ ir_node *new_mem = be_transform_node(mem);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_type *type = get_Call_type(node);
+ int n_params = get_Call_n_params(node);
+ int n_param_regs = sizeof(param_regs)/sizeof(param_regs[0]);
+ /* max inputs: memory, callee, register arguments */
+ int max_inputs = 2 + n_param_regs;
+ ir_node **in = ALLOCAN(ir_node*, max_inputs);
+ ir_node **sync_ins = ALLOCAN(ir_node*, max_inputs);
+ struct obstack *obst = be_get_be_obst(irg);
+ const arch_register_req_t **in_req
+ = OALLOCNZ(obst, const arch_register_req_t*, max_inputs);
+ calling_convention_t *cconv
+ = sparc_decide_calling_convention(type, true);
+ int in_arity = 0;
+ int sync_arity = 0;
+ int n_caller_saves
+ = sizeof(caller_saves)/sizeof(caller_saves[0]);
+ ir_entity *entity = NULL;
+ ir_node *new_frame = get_stack_pointer_for(node);
+ ir_node *incsp;
+ int mem_pos;
+ ir_node *res;
+ int p;
+ int i;
+ int o;
+ int out_arity;
+
+ assert(n_params == get_method_n_params(type));
+
+ /* construct arguments */
+
+ /* memory input */
+ in_req[in_arity] = arch_no_register_req;
+ mem_pos = in_arity;
+ ++in_arity;
+
+ /* stack pointer input */
+ /* construct an IncSP -> we have to always be sure that the stack is
+ * aligned even if we don't push arguments on it */
+ incsp = be_new_IncSP(sp_reg, new_block, new_frame,
+ cconv->param_stack_size, 1);
+ in_req[in_arity] = sp_reg->single_req;
+ in[in_arity] = incsp;
+ ++in_arity;
+
+ /* parameters */
+ for (p = 0; p < n_params; ++p) {
+ ir_node *value = get_Call_param(node, p);
+ ir_node *new_value = be_transform_node(value);
+ ir_node *new_value1 = NULL;
+ const reg_or_stackslot_t *param = &cconv->parameters[p];
+ ir_type *param_type = get_method_param_type(type, p);
+ ir_mode *mode = get_type_mode(param_type);
+ ir_node *str;
+
+ if (mode_is_float(mode) && param->reg0 != NULL) {
+ unsigned size_bits = get_mode_size_bits(mode);
+ assert(size_bits == 32);
+ new_value = bitcast_float_to_int(dbgi, new_block, new_value);
+ }
+
+ /* put value into registers */
+ if (param->reg0 != NULL) {
+ in[in_arity] = new_value;
+ in_req[in_arity] = param->reg0->single_req;
+ ++in_arity;
+ if (new_value1 == NULL)
+ continue;
+ }
+ if (param->reg1 != NULL) {
+ assert(new_value1 != NULL);
+ in[in_arity] = new_value1;
+ in_req[in_arity] = param->reg1->single_req;
+ ++in_arity;
+ continue;
+ }
+
+ /* we need a store if we're here */
+ if (new_value1 != NULL) {
+ new_value = new_value1;
+ mode = mode_gp;
+ }
+
+ /* create a parameter frame if necessary */
+ if (mode_is_float(mode)) {
+ str = new_bd_sparc_Stf(dbgi, new_block, incsp, new_value, new_mem,
+ mode, NULL, 0, param->offset, true);
+ } else {
+ str = new_bd_sparc_St(dbgi, new_block, incsp, new_value, new_mem,
+ mode, NULL, 0, param->offset, true);
+ }
+ sync_ins[sync_arity++] = str;
+ }
+ assert(in_arity <= max_inputs);
+
+ /* construct memory input */
+ if (sync_arity == 0) {
+ in[mem_pos] = new_mem;
+ } else if (sync_arity == 1) {
+ in[mem_pos] = sync_ins[0];
+ } else {
+ in[mem_pos] = new_rd_Sync(NULL, new_block, sync_arity, sync_ins);
+ }
+
+ if (is_SymConst(callee)) {
+ entity = get_SymConst_entity(callee);
+ } else {
+ in[in_arity] = be_transform_node(callee);
+ in_req[in_arity] = sparc_reg_classes[CLASS_sparc_gp].class_req;
+ ++in_arity;
+ }
+
+ /* outputs:
+ * - memory
+ * - caller saves
+ */
+ out_arity = 1 + n_caller_saves;
+
+ /* create call node */
+ if (entity != NULL) {
+ res = new_bd_sparc_Call_imm(dbgi, new_block, in_arity, in, out_arity,
+ entity, 0);
+ } else {
+ res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity);
+ }
+ set_sparc_in_req_all(res, in_req);
+
+ /* create output register reqs */
+ o = 0;
+ arch_set_out_register_req(res, o++, arch_no_register_req);
+ for (i = 0; i < n_caller_saves; ++i) {
+ const arch_register_t *reg = caller_saves[i];
+ arch_set_out_register_req(res, o++, reg->single_req);
+ }
+ assert(o == out_arity);
+
+ /* copy pinned attribute */
+ set_irn_pinned(res, get_irn_pinned(node));
+
+ /* IncSP to destroy the call stackframe */
+ incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
+ /* if we are the last IncSP producer in a block then we have to keep
+ * the stack value.
+ * Note: This here keeps all producers which is more than necessary */
+ add_irn_dep(incsp, res);
+ keep_alive(incsp);
+
+ pmap_insert(node_to_stack, node, incsp);
+
+ sparc_free_calling_convention(cconv);
+ return res;
+}
+
+static ir_node *gen_Sel(ir_node *node)
+{
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ ir_node *ptr = get_Sel_ptr(node);
+ ir_node *new_ptr = be_transform_node(ptr);
+ ir_entity *entity = get_Sel_entity(node);
+
+ /* must be the frame pointer all other sels must have been lowered
+ * already */
+ assert(is_Proj(ptr) && is_Start(get_Proj_pred(ptr)));
+ /* we should not have value types from parameters anymore - they should be
+ lowered */
+ assert(get_entity_owner(entity) !=
+ get_method_value_param_type(get_entity_type(get_irg_entity(get_irn_irg(node)))));
+
+ return new_bd_sparc_FrameAddr(dbgi, new_block, new_ptr, entity);
+}
+
/**
* Transform some Phi nodes
*/
/* we shouldn't have any 64bit stuff around anymore */
assert(get_mode_size_bits(mode) <= 32);
/* all integer operations are on 32bit registers now */
- mode = mode_Iu;
+ mode = mode_gp;
req = sparc_reg_classes[CLASS_sparc_gp].class_req;
} else {
req = arch_no_register_req;
case iro_sparc_Ld:
/* handle all gp loads equal: they have the same proj numbers. */
if (proj == pn_Load_res) {
- return new_rd_Proj(dbgi, new_load, mode_Iu, pn_sparc_Ld_res);
+ return new_rd_Proj(dbgi, new_load, mode_gp, pn_sparc_Ld_res);
} else if (proj == pn_Load_M) {
return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
}
return be_duplicate_node(node);
}
-/**
- * Transform the Projs of a be_AddSP.
- */
-static ir_node *gen_Proj_be_AddSP(ir_node *node)
-{
- ir_node *pred = get_Proj_pred(node);
- ir_node *new_pred = be_transform_node(pred);
- dbg_info *dbgi = get_irn_dbg_info(node);
- long proj = get_Proj_proj(node);
-
- if (proj == pn_be_AddSP_sp) {
- ir_node *res = new_rd_Proj(dbgi, new_pred, mode_Iu,
- pn_sparc_SubSP_stack);
- arch_set_irn_register(res, &sparc_gp_regs[REG_SP]);
- return res;
- } else if (proj == pn_be_AddSP_res) {
- return new_rd_Proj(dbgi, new_pred, mode_Iu, pn_sparc_SubSP_stack);
- } else if (proj == pn_be_AddSP_M) {
- return new_rd_Proj(dbgi, new_pred, mode_M, pn_sparc_SubSP_M);
- }
-
- panic("Unsupported Proj from AddSP");
-}
-
-/**
- * Transform the Projs of a be_SubSP.
- */
-static ir_node *gen_Proj_be_SubSP(ir_node *node)
-{
- ir_node *pred = get_Proj_pred(node);
- ir_node *new_pred = be_transform_node(pred);
- dbg_info *dbgi = get_irn_dbg_info(node);
- long proj = get_Proj_proj(node);
-
- if (proj == pn_be_SubSP_sp) {
- ir_node *res = new_rd_Proj(dbgi, new_pred, mode_Iu,
- pn_sparc_AddSP_stack);
- arch_set_irn_register(res, &sparc_gp_regs[REG_SP]);
- return res;
- } else if (proj == pn_be_SubSP_M) {
- return new_rd_Proj(dbgi, new_pred, mode_M, pn_sparc_AddSP_M);
- }
-
- panic("Unsupported Proj from SubSP");
-}
-
/**
* Transform the Projs from a Cmp.
*/
switch (proj) {
case pn_Div_res:
if (is_sparc_Div(new_pred)) {
- return new_rd_Proj(dbgi, new_pred, mode_Iu, pn_sparc_Div_res);
+ return new_rd_Proj(dbgi, new_pred, mode_gp, pn_sparc_Div_res);
}
break;
default:
panic("Unsupported Proj from Div");
}
+static ir_node *gen_Proj_Start(ir_node *node)
+{
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ ir_node *barrier = be_transform_node(get_Proj_pred(node));
+ long pn = get_Proj_proj(node);
+
+ switch ((pn_Start) pn) {
+ case pn_Start_X_initial_exec:
+ /* excahnge ProjX with a jump */
+ return new_bd_sparc_Ba(NULL, new_block);
+ case pn_Start_M:
+ return new_r_Proj(barrier, mode_M, 0);
+ case pn_Start_T_args:
+ return barrier;
+ case pn_Start_P_frame_base:
+ return be_prolog_get_reg_value(abihelper, fp_reg);
+ case pn_Start_P_tls:
+ return new_Bad();
+ case pn_Start_max:
+ break;
+ }
+ panic("Unexpected start proj: %ld\n", pn);
+}
+
+static ir_node *gen_Proj_Proj_Start(ir_node *node)
+{
+ long pn = get_Proj_proj(node);
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ ir_entity *entity = get_irg_entity(current_ir_graph);
+ ir_type *method_type = get_entity_type(entity);
+ ir_type *param_type = get_method_param_type(method_type, pn);
+ const reg_or_stackslot_t *param;
+
+ /* Proj->Proj->Start must be a method argument */
+ assert(get_Proj_proj(get_Proj_pred(node)) == pn_Start_T_args);
+
+ param = &cconv->parameters[pn];
+
+ if (param->reg0 != NULL) {
+ /* argument transmitted in register */
+ ir_mode *mode = get_type_mode(param_type);
+ const arch_register_t *reg = param->reg0;
+ ir_node *value = be_prolog_get_reg_value(abihelper, reg);
+
+ if (mode_is_float(mode)) {
+ /* convert integer value to float */
+ value = bitcast_int_to_float(NULL, new_block, value);
+ }
+ return value;
+ } else {
+ /* argument transmitted on stack */
+ ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
+ ir_node *mem = be_prolog_get_memory(abihelper);
+ ir_mode *mode = get_type_mode(param->type);
+ ir_node *load;
+ ir_node *value;
+
+ if (mode_is_float(mode)) {
+ load = new_bd_sparc_Ldf(NULL, new_block, fp, mem, mode,
+ param->entity, 0, 0, true);
+ value = new_r_Proj(load, mode_fp, pn_sparc_Ldf_res);
+ } else {
+ load = new_bd_sparc_Ld(NULL, new_block, fp, mem, mode,
+ param->entity, 0, 0, true);
+ value = new_r_Proj(load, mode_gp, pn_sparc_Ld_res);
+ }
+ set_irn_pinned(load, op_pin_state_floats);
+
+ return value;
+ }
+}
+
+static ir_node *gen_Proj_Call(ir_node *node)
+{
+ long pn = get_Proj_proj(node);
+ ir_node *call = get_Proj_pred(node);
+ ir_node *new_call = be_transform_node(call);
+
+ switch ((pn_Call) pn) {
+ case pn_Call_M:
+ return new_r_Proj(new_call, mode_M, 0);
+ case pn_Call_X_regular:
+ case pn_Call_X_except:
+ case pn_Call_T_result:
+ case pn_Call_P_value_res_base:
+ case pn_Call_max:
+ break;
+ }
+ panic("Unexpected Call proj %ld\n", pn);
+}
+
+/**
+ * Finds number of output value of a mode_T node which is constrained to
+ * a single specific register.
+ */
+static int find_out_for_reg(ir_node *node, const arch_register_t *reg)
+{
+ int n_outs = arch_irn_get_n_outs(node);
+ int o;
+
+ for (o = 0; o < n_outs; ++o) {
+ const arch_register_req_t *req = arch_get_out_register_req(node, o);
+ if (req == reg->single_req)
+ return o;
+ }
+ return -1;
+}
+
+static ir_node *gen_Proj_Proj_Call(ir_node *node)
+{
+ long pn = get_Proj_proj(node);
+ ir_node *call = get_Proj_pred(get_Proj_pred(node));
+ ir_node *new_call = be_transform_node(call);
+ ir_type *function_type = get_Call_type(call);
+ calling_convention_t *cconv
+ = sparc_decide_calling_convention(function_type, true);
+ const reg_or_stackslot_t *res = &cconv->results[pn];
+ const arch_register_t *reg = res->reg0;
+ ir_mode *mode;
+ int regn;
+
+ assert(res->reg0 != NULL && res->reg1 == NULL);
+ regn = find_out_for_reg(new_call, reg);
+ if (regn < 0) {
+ panic("Internal error in calling convention for return %+F", node);
+ }
+ mode = res->reg0->reg_class->mode;
+
+ sparc_free_calling_convention(cconv);
+
+ return new_r_Proj(new_call, mode, regn);
+}
/**
* Transform a Proj node.
*/
static ir_node *gen_Proj(ir_node *node)
{
- ir_graph *irg = current_ir_graph;
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *pred = get_Proj_pred(node);
- long proj = get_Proj_proj(node);
-
- (void) irg;
- (void) dbgi;
+ ir_node *pred = get_Proj_pred(node);
+ long pn = get_Proj_proj(node);
- if (is_Store(pred)) {
- if (proj == pn_Store_M) {
+ switch (get_irn_opcode(pred)) {
+ case iro_Store:
+ if (pn == pn_Store_M) {
return be_transform_node(pred);
} else {
panic("Unsupported Proj from Store");
}
- } else if (is_Load(pred)) {
+ break;
+ case iro_Load:
return gen_Proj_Load(node);
- } else if (be_is_SubSP(pred)) {
- //panic("gen_Proj not implemented for SubSP");
- return gen_Proj_be_SubSP(node);
- } else if (be_is_AddSP(pred)) {
- //panic("gen_Proj not implemented for AddSP");
- return gen_Proj_be_AddSP(node);
- } else if (is_Cmp(pred)) {
- //panic("gen_Proj not implemented for Cmp");
+ case iro_Call:
+ return gen_Proj_Call(node);
+ case iro_Cmp:
return gen_Proj_Cmp(node);
- } else if (is_Div(pred)) {
+ case iro_Cond:
+ return be_duplicate_node(node);
+ case iro_Div:
return gen_Proj_Div(node);
- } else if (is_Start(pred)) {
- /*
- if (proj == pn_Start_X_initial_exec) {
- ir_node *block = get_nodes_block(pred);
- ir_node *jump;
-
- // we exchange the ProjX with a jump
- block = be_transform_node(block);
- jump = new_rd_Jmp(dbgi, block);
- return jump;
- }
-
- if (node == get_irg_anchor(irg, anchor_tls)) {
- return gen_Proj_tls(node);
- }
- */
- } else {
- ir_node *new_pred = be_transform_node(pred);
- ir_mode *mode = get_irn_mode(node);
- if (mode_needs_gp_reg(mode)) {
- ir_node *new_proj = new_r_Proj(new_pred, mode_Iu, get_Proj_proj(node));
- new_proj->node_nr = node->node_nr;
- return new_proj;
+ case iro_Start:
+ return gen_Proj_Start(node);
+ case iro_Proj: {
+ ir_node *pred_pred = get_Proj_pred(pred);
+ if (is_Call(pred_pred)) {
+ return gen_Proj_Proj_Call(node);
+ } else if (is_Start(pred_pred)) {
+ return gen_Proj_Proj_Start(node);
}
+ /* FALLTHROUGH */
+ }
+ default:
+ panic("code selection didn't expect Proj after %+F\n", pred);
}
-
- return be_duplicate_node(node);
}
be_set_transform_function(op_be_Copy, gen_be_Copy);
be_set_transform_function(op_be_FrameAddr, gen_be_FrameAddr);
be_set_transform_function(op_be_SubSP, gen_be_SubSP);
+ be_set_transform_function(op_Call, gen_Call);
be_set_transform_function(op_Cmp, gen_Cmp);
be_set_transform_function(op_Cond, gen_Cond);
be_set_transform_function(op_Const, gen_Const);
be_set_transform_function(op_Or, gen_Or);
be_set_transform_function(op_Phi, gen_Phi);
be_set_transform_function(op_Proj, gen_Proj);
+ be_set_transform_function(op_Return, gen_Return);
+ be_set_transform_function(op_Sel, gen_Sel);
be_set_transform_function(op_Shl, gen_Shl);
be_set_transform_function(op_Shr, gen_Shr);
be_set_transform_function(op_Shrs, gen_Shrs);
+ be_set_transform_function(op_Start, gen_Start);
be_set_transform_function(op_Store, gen_Store);
be_set_transform_function(op_Sub, gen_Sub);
be_set_transform_function(op_SymConst, gen_SymConst);
be_set_transform_function(op_sparc_Save, be_duplicate_node);
}
+/* hack to avoid unused fp proj at start barrier */
+static void assure_fp_keep(void)
+{
+ unsigned n_users = 0;
+ const ir_edge_t *edge;
+ ir_node *fp_proj = be_prolog_get_reg_value(abihelper, fp_reg);
+
+ foreach_out_edge(fp_proj, edge) {
+ ir_node *succ = get_edge_src_irn(edge);
+ if (is_End(succ) || is_Anchor(succ))
+ continue;
+ ++n_users;
+ }
+
+ if (n_users == 0) {
+ ir_node *block = get_nodes_block(fp_proj);
+ ir_node *in[1] = { fp_proj };
+ be_new_Keep(block, 1, in);
+ }
+}
+
/**
* Transform a Firm graph into a SPARC graph.
*/
void sparc_transform_graph(sparc_code_gen_t *cg)
{
+ ir_graph *irg = cg->irg;
+ ir_entity *entity = get_irg_entity(irg);
+ ir_type *frame_type;
+
sparc_register_transformers();
env_cg = cg;
+
+ node_to_stack = pmap_create();
+
+ mode_gp = mode_Iu;
+ mode_fp = mode_F;
+
+ abihelper = be_abihelper_prepare(irg);
+ be_collect_stacknodes(abihelper);
+ cconv = sparc_decide_calling_convention(get_entity_type(entity), false);
+ create_stacklayout(irg);
+
be_transform_graph(cg->irg, NULL);
+ assure_fp_keep();
+
+ be_abihelper_finish(abihelper);
+ sparc_free_calling_convention(cconv);
+
+ frame_type = get_irg_frame_type(irg);
+ if (get_type_state(frame_type) == layout_undefined)
+ default_layout_compound_type(frame_type);
+
+ pmap_destroy(node_to_stack);
+ node_to_stack = NULL;
+
+ be_add_missing_keeps(irg);
}
void sparc_init_transform(void)
projects / libfirm / commitdiff