/*
- * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2010 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
#include "gen_sparc_emitter.h"
#include "sparc_nodes_attr.h"
#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;)
-/**
- * attribute of SAVE node which follows immediatelly after the START node
- * we need this to correct all offsets since SPARC expects
- * some reserved stack space after the stackpointer
- */
-const sparc_save_attr_t *save_attr;
-
/**
* Returns the register at in position pos.
*/
return reg;
}
-/*************************************************************
- * _ _ __ _ _
- * (_) | | / _| | | | |
- * _ __ _ __ _ _ __ | |_| |_ | |__ ___| |_ __ ___ _ __
- * | '_ \| '__| | '_ \| __| _| | '_ \ / _ \ | '_ \ / _ \ '__|
- * | |_) | | | | | | | |_| | | | | | __/ | |_) | __/ |
- * | .__/|_| |_|_| |_|\__|_| |_| |_|\___|_| .__/ \___|_|
- * | | | |
- * |_| |_|
- *************************************************************/
-
void sparc_emit_immediate(const ir_node *node)
{
- // TODO: make sure it's a valid simm13 ?
- const sparc_attr_t *attr = get_sparc_attr_const(node);
-
- assert(!(attr->immediate_value < -4096 || attr->immediate_value > 4096));
-
- be_emit_irprintf("%d", attr->immediate_value);
+ int const val = get_sparc_attr_const(node)->immediate_value;
+ assert(-4096 <= val && val < 4096);
+ be_emit_irprintf("%d", val);
}
void sparc_emit_source_register(const ir_node *node, int pos)
}
}
+static bool is_stack_pointer_relative(const ir_node *node)
+{
+ const arch_register_t *sp = &sparc_gp_regs[REG_SP];
+ return (is_sparc_St(node) && get_in_reg(node, n_sparc_St_ptr) == sp)
+ || (is_sparc_Ld(node) && get_in_reg(node, n_sparc_Ld_ptr) == sp);
+}
+
/**
* emit SP offset
*/
void sparc_emit_offset(const ir_node *node)
{
const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
- assert(attr->base.is_load_store);
-
- if (attr->offset > 0)
- be_emit_irprintf("+%ld", attr->offset);
+ long offset = attr->offset;
+
+ /* bad hack: the real stack stuff is behind the always-there spill
+ * space for the register window and stack */
+ if (is_stack_pointer_relative(node))
+ offset += SPARC_MIN_STACKSIZE;
+ if (offset != 0) {
+ be_emit_irprintf("%+ld", offset);
+ }
}
void sparc_emit_load_mode(const ir_node *node)
{
const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
- ir_mode *mode = attr->load_store_mode;
- int bits = get_mode_size_bits(mode);
- bool is_signed = mode_is_signed(mode);
-
- if (bits == 16) {
- be_emit_string(is_signed ? "sh" : "uh");
- } else if (bits == 8) {
- be_emit_string(is_signed ? "sb" : "ub");
- } else if (bits == 64) {
- be_emit_string("d");
- } else {
- assert(bits == 32);
- }
+ ir_mode *mode = attr->load_store_mode;
+ int bits = get_mode_size_bits(mode);
+ bool is_signed = mode_is_signed(mode);
+
+ if (bits == 16) {
+ be_emit_string(is_signed ? "sh" : "uh");
+ } else if (bits == 8) {
+ be_emit_string(is_signed ? "sb" : "ub");
+ } else if (bits == 64) {
+ be_emit_string("d");
+ } else {
+ assert(bits == 32);
+ }
}
/**
void sparc_emit_store_mode(const ir_node *node)
{
const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
- ir_mode *mode = attr->load_store_mode;
- int bits = get_mode_size_bits(mode);
+ ir_mode *mode = attr->load_store_mode;
+ int bits = get_mode_size_bits(mode);
+
+ if (bits == 16) {
+ be_emit_string("h");
+ } else if (bits == 8) {
+ be_emit_string("b");
+ } else if (bits == 64) {
+ be_emit_string("d");
+ } else {
+ assert(bits == 32);
+ }
+}
+
+/**
+ * emit integer signed/unsigned prefix char
+ */
+void sparc_emit_mode_sign_prefix(const ir_node *node)
+{
+ ir_mode *mode = get_irn_mode(node);
+ bool is_signed = mode_is_signed(mode);
+ be_emit_string(is_signed ? "s" : "u");
+}
+
+/**
+ * emit FP load mode char
+ */
+void sparc_emit_fp_load_mode(const ir_node *node)
+{
+ const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
+ ir_mode *mode = attr->load_store_mode;
+ int bits = get_mode_size_bits(mode);
+
+ assert(mode_is_float(mode));
- if (bits == 16) {
- be_emit_string("h");
- } else if (bits == 8) {
- be_emit_string("b");
- } else if (bits == 64) {
- be_emit_string("d");
- } else {
- assert(bits == 32);
- }
+ if (bits == 32) {
+ be_emit_string("f");
+ } else if (bits == 64) {
+ be_emit_string("df");
+ } else {
+ panic("FP load mode > 64bits not implemented yet");
+ }
+}
+
+/**
+ * emit FP store mode char
+ */
+void sparc_emit_fp_store_mode(const ir_node *node)
+{
+ const sparc_load_store_attr_t *attr = get_sparc_load_store_attr_const(node);
+ ir_mode *mode = attr->load_store_mode;
+ int bits = get_mode_size_bits(mode);
+
+ assert(mode_is_float(mode));
+
+ if (bits == 32) {
+ be_emit_string("f");
+ } else if (bits == 64) {
+ be_emit_string("df");
+ } else {
+ panic("FP store mode > 64bits not implemented yet");
+ }
+}
+
+/**
+ * emits the FP mode suffix char
+ */
+void sparc_emit_fp_mode_suffix(const ir_node *node)
+{
+ ir_mode *mode = get_irn_mode(node);
+ int bits = get_mode_size_bits(mode);
+
+ assert(mode_is_float(mode));
+
+ if (bits == 32) {
+ be_emit_string("s");
+ } else if (bits == 64) {
+ be_emit_string("d");
+ } else {
+ panic("FP mode > 64bits not implemented yet");
+ }
}
/**
*/
static void sparc_emit_entity(ir_entity *entity)
{
- be_emit_ident(get_entity_ld_ident(entity));
+ be_gas_emit_entity(entity);
}
-/***********************************************************************************
- * _ __ _
- * (_) / _| | |
- * _ __ ___ __ _ _ _ __ | |_ _ __ __ _ _ __ ___ _____ _____ _ __| | __
- * | '_ ` _ \ / _` | | '_ \ | _| '__/ _` | '_ ` _ \ / _ \ \ /\ / / _ \| '__| |/ /
- * | | | | | | (_| | | | | | | | | | | (_| | | | | | | __/\ V V / (_) | | | <
- * |_| |_| |_|\__,_|_|_| |_| |_| |_| \__,_|_| |_| |_|\___| \_/\_/ \___/|_| |_|\_\
- *
- ***********************************************************************************/
-
-
/**
* Emits code for stack space management
*/
}
/**
- * emits code for save instruction
- * and sets the current save_attr pointer
+ * emits code for save instruction with min. required stack space
*/
static void emit_sparc_Save(const ir_node *irn)
{
- save_attr = get_sparc_save_attr_const(irn);
+ const sparc_save_attr_t *save_attr = get_sparc_save_attr_const(irn);
be_emit_cstring("\tsave ");
sparc_emit_source_register(irn, 0);
be_emit_irprintf(", %d, ", -save_attr->initial_stacksize);
be_emit_finish_line_gas(irn);
}
+/**
+ * emit code for div with the correct sign prefix
+ */
+static void emit_sparc_Div(const ir_node *irn)
+{
+ be_emit_cstring("\t");
+ sparc_emit_mode_sign_prefix(irn);
+ be_emit_cstring("div ");
+
+ sparc_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ sparc_emit_reg_or_imm(irn, 1);
+ be_emit_cstring(", ");
+ sparc_emit_dest_register(irn, 0);
+ be_emit_finish_line_gas(irn);
+}
+
+/**
+ * emit code for mul with the correct sign prefix
+ */
+static void emit_sparc_Mul(const ir_node *irn)
+{
+ be_emit_cstring("\t");
+ sparc_emit_mode_sign_prefix(irn);
+ be_emit_cstring("mul ");
+
+ sparc_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ sparc_emit_reg_or_imm(irn, 1);
+ be_emit_cstring(", ");
+ sparc_emit_dest_register(irn, 0);
+ be_emit_finish_line_gas(irn);
+}
+
+/**
+ * emits code for mulh
+ */
+static void emit_sparc_Mulh(const ir_node *irn)
+{
+ be_emit_cstring("\t");
+ sparc_emit_mode_sign_prefix(irn);
+ be_emit_cstring("mul ");
+
+ sparc_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ sparc_emit_reg_or_imm(irn, 1);
+ be_emit_cstring(", ");
+ sparc_emit_dest_register(irn, 0);
+ be_emit_finish_line_gas(irn);
+
+ // our result is in the y register now
+ // we just copy it to the assigned target reg
+ be_emit_cstring("\tmov ");
+ be_emit_char('%');
+ be_emit_string(arch_register_get_name(&sparc_flags_regs[REG_Y]));
+ be_emit_cstring(", ");
+ sparc_emit_dest_register(irn, 0);
+ be_emit_finish_line_gas(irn);
+}
/**
* Emits code for return node
static void emit_be_Return(const ir_node *irn)
{
be_emit_cstring("\tret");
+ //be_emit_cstring("\tjmp %i7+8");
be_emit_finish_line_gas(irn);
be_emit_cstring("\trestore");
be_emit_finish_line_gas(irn);
/**
* 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_finish_line_gas(irn);
- be_emit_cstring("\tnop");
- be_emit_pad_comment();
- be_emit_cstring("/* TODO: use delay slot */\n");
+ be_emit_cstring(", 0");
} 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);
}
/**
- * TODO: check if this is correct
+ * Emit code for Perm node
*/
static void emit_be_Perm(const ir_node *irn)
{
be_emit_finish_line_gas(irn);
}
+/**
+ * TODO: not really tested but seems to work with memperm_arity == 1
+ */
+static void emit_be_MemPerm(const ir_node *node)
+{
+ int i;
+ int memperm_arity;
+ int sp_change = 0;
+
+ /* TODO: this implementation is slower than necessary.
+ The longterm goal is however to avoid the memperm node completely */
+
+ memperm_arity = be_get_MemPerm_entity_arity(node);
+ // we use our local registers - so this is limited to 8 inputs !
+ if (memperm_arity > 8)
+ panic("memperm with more than 8 inputs not supported yet");
+
+ for (i = 0; i < memperm_arity; ++i) {
+ int offset;
+ ir_entity *entity = be_get_MemPerm_in_entity(node, i);
+
+ /* spill register */
+ sp_change += 4;
+ be_emit_irprintf("\tst %%l%d, [%%sp-%d]", i, sp_change);
+ be_emit_finish_line_gas(node);
+
+ /* load from entity */
+ offset = get_entity_offset(entity) + sp_change;
+ be_emit_irprintf("\tld [%%sp+%d], %%l%d", offset, i);
+ be_emit_finish_line_gas(node);
+ }
+
+ for (i = memperm_arity-1; i >= 0; --i) {
+ int offset;
+ ir_entity *entity = be_get_MemPerm_out_entity(node, i);
+
+ /* store to new entity */
+ offset = get_entity_offset(entity) + sp_change;
+ be_emit_irprintf("\tst %%l%d, [%%sp+%d]", i, offset);
+ be_emit_finish_line_gas(node);
+ /* restore register */
+ be_emit_irprintf("\tld [%%sp-%d], %%l%d", sp_change, i);
+ sp_change -= 4;
+ be_emit_finish_line_gas(node);
+ }
+ assert(sp_change == 0);
+}
+
/**
* Emit a SymConst.
*/
static void emit_sparc_SymConst(const ir_node *irn)
{
const sparc_symconst_attr_t *attr = get_sparc_symconst_attr_const(irn);
- ident *id_symconst = get_entity_ident(attr->entity);
- const char *label = get_id_str(id_symconst);
//sethi %hi(const32),%reg
//or %reg,%lo(const32),%reg
- be_emit_irprintf("\tsethi %%hi(%s), ", label);
+ be_emit_cstring("\tsethi %hi(");
+ be_gas_emit_entity(attr->entity);
+ be_emit_cstring("), ");
sparc_emit_dest_register(irn, 0);
be_emit_cstring("\n ");
// TODO: could be combined with the following load/store instruction
be_emit_cstring("\tor ");
sparc_emit_dest_register(irn, 0);
- be_emit_irprintf(", %%lo(%s), ", label);
+ be_emit_cstring(", %lo(");
+ be_gas_emit_entity(attr->entity);
+ be_emit_cstring("), ");
sparc_emit_dest_register(irn, 0);
be_emit_finish_line_gas(irn);
}
-
/**
* Emits code for FrameAddr fix
*/
be_emit_cstring("\tadd ");
sparc_emit_source_register(irn, 0);
be_emit_cstring(", ");
- be_emit_irprintf("%ld", attr->fp_offset + save_attr->initial_stacksize);
+ be_emit_irprintf("%ld", attr->fp_offset);
} else {
be_emit_cstring("\tsub ");
sparc_emit_source_register(irn, 0);
/**
* Emits code for Branch
*/
-static void emit_sparc_Branch(const ir_node *irn)
+static void emit_sparc_BXX(const ir_node *node)
{
+ const sparc_jmp_cond_attr_t *attr = get_sparc_jmp_cond_attr_const(node);
+ int proj_num = attr->proj_num;
+ bool is_unsigned = attr->is_unsigned;
+ const ir_node *proj_true = NULL;
+ const ir_node *proj_false = NULL;
const ir_edge_t *edge;
- const ir_node *proj_true = NULL;
- const ir_node *proj_false = NULL;
- const ir_node *block;
- const ir_node *next_block;
- ir_node *op1 = get_irn_n(irn, 0);
- const char *suffix;
- int proj_num = get_sparc_jmp_cond_proj_num(irn);
- const sparc_cmp_attr_t *cmp_attr = get_irn_generic_attr_const(op1);
- // bool is_signed = !cmp_attr->is_unsigned;
-
- assert(is_sparc_Cmp(op1) || is_sparc_Tst(op1));
-
- foreach_out_edge(irn, edge) {
+ const ir_node *block;
+ const ir_node *next_block;
+ const char *suffix;
+
+ foreach_out_edge(node, edge) {
ir_node *proj = get_edge_src_irn(edge);
long nr = get_Proj_proj(proj);
if (nr == pn_Cond_true) {
}
}
- if (cmp_attr->ins_permuted) {
- proj_num = get_mirrored_pnc(proj_num);
- }
-
/* for now, the code works for scheduled and non-schedules blocks */
- block = get_nodes_block(irn);
+ block = get_nodes_block(node);
/* we have a block schedule */
next_block = get_irn_link(block);
proj_num = get_negated_pnc(proj_num, mode_Iu);
}
-
- switch (proj_num) {
- case pn_Cmp_Eq: suffix = "e"; break;
- case pn_Cmp_Lt: suffix = "l"; break;
- case pn_Cmp_Le: suffix = "le"; break;
- case pn_Cmp_Gt: suffix = "g"; break;
- case pn_Cmp_Ge: suffix = "ge"; break;
- case pn_Cmp_Lg: suffix = "ne"; break;
- case pn_Cmp_Leg: suffix = "a"; break;
- default: panic("Cmp has unsupported pnc");
+ if (is_unsigned) {
+ switch (proj_num) {
+ case pn_Cmp_Eq: suffix = "e"; break;
+ case pn_Cmp_Lt: suffix = "lu"; break;
+ case pn_Cmp_Le: suffix = "leu"; break;
+ case pn_Cmp_Gt: suffix = "gu"; break;
+ case pn_Cmp_Ge: suffix = "geu"; break;
+ case pn_Cmp_Lg: suffix = "ne"; break;
+ default: panic("Cmp has unsupported pnc");
+ }
+ } else {
+ switch (proj_num) {
+ case pn_Cmp_Eq: suffix = "e"; break;
+ case pn_Cmp_Lt: suffix = "l"; break;
+ case pn_Cmp_Le: suffix = "le"; break;
+ case pn_Cmp_Gt: suffix = "g"; break;
+ case pn_Cmp_Ge: suffix = "ge"; break;
+ case pn_Cmp_Lg: suffix = "ne"; break;
+ default: panic("Cmp has unsupported pnc");
+ }
}
/* emit the true proj */
- be_emit_irprintf("\tb%s ", suffix);
+ be_emit_cstring("\tb");
+ be_emit_string(suffix);
+ be_emit_char(' ');
sparc_emit_cfop_target(proj_true);
be_emit_finish_line_gas(proj_true);
/**
* emit Jmp (which actually is a branch always (ba) instruction)
*/
-static void emit_sparc_Jmp(const ir_node *node)
+static void emit_sparc_Ba(const ir_node *node)
{
ir_node *block, *next_block;
*/
static void sparc_register_emitters(void)
{
-
/* first clear the generic function pointer for all ops */
clear_irp_opcodes_generic_func();
-
/* register all emitter functions defined in spec */
sparc_register_spec_emitters();
/* custom emitter */
- set_emitter(op_be_IncSP, emit_be_IncSP);
- set_emitter(op_be_Return, emit_be_Return);
- set_emitter(op_be_Call, emit_be_Call);
- set_emitter(op_sparc_FrameAddr, emit_sparc_FrameAddr);
- set_emitter(op_sparc_Branch, emit_sparc_Branch);
- set_emitter(op_sparc_SymConst, emit_sparc_SymConst);
- set_emitter(op_sparc_Jmp, emit_sparc_Jmp);
- set_emitter(op_sparc_Save, emit_sparc_Save);
-
- set_emitter(op_sparc_HiImm, emit_sparc_HiImm);
- set_emitter(op_sparc_LoImm, emit_sparc_LoImm);
-
- set_emitter(op_be_Copy, emit_be_Copy);
- set_emitter(op_be_CopyKeep, emit_be_Copy);
-
- set_emitter(op_be_Perm, emit_be_Perm);
-
-/*
- set_emitter(op_arm_B, emit_arm_B);
- set_emitter(op_arm_CopyB, emit_arm_CopyB);
- set_emitter(op_arm_fpaConst, emit_arm_fpaConst);
- set_emitter(op_arm_fpaDbl2GP, emit_arm_fpaDbl2GP);
- set_emitter(op_arm_LdTls, emit_arm_LdTls);
- set_emitter(op_arm_SwitchJmp, emit_arm_SwitchJmp);
- set_emitter(op_be_MemPerm, emit_be_MemPerm);
-
-*/
- /* no need to emit anything for the following nodes */
- set_emitter(op_Phi, emit_nothing);
- set_emitter(op_be_Keep, emit_nothing);
- set_emitter(op_be_Start, emit_nothing);
- set_emitter(op_be_Barrier, emit_nothing);
-
+ 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_MemPerm, emit_be_MemPerm);
+ 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);
+ set_emitter(op_sparc_Ba, emit_sparc_Ba);
+ set_emitter(op_sparc_LoImm, emit_sparc_LoImm);
+ set_emitter(op_sparc_Mul, emit_sparc_Mul);
+ set_emitter(op_sparc_Mulh, emit_sparc_Mulh);
+ set_emitter(op_sparc_Save, emit_sparc_Save);
+ set_emitter(op_sparc_SymConst, emit_sparc_SymConst);
+
+ /* no need to emit anything for the following nodes */
+ set_emitter(op_be_Barrier, emit_nothing);
+ set_emitter(op_be_Keep, emit_nothing);
+ set_emitter(op_be_Start, emit_nothing);
+ set_emitter(op_Phi, emit_nothing);
}
/**
ir_node *last_block = NULL;
ir_entity *entity = get_irg_entity(irg);
int i, n;
+ (void) cg;
be_gas_elf_type_char = '#';
+ be_gas_object_file_format = OBJECT_FILE_FORMAT_ELF_SPARC;
/* register all emitter functions */
sparc_register_emitters();
- be_dbg_method_begin(entity, be_abi_get_stack_layout(cg->birg->abi));
+ be_dbg_method_begin(entity);
/* create the block schedule. For now, we don't need it earlier. */
- blk_sched = be_create_block_schedule(cg->irg, cg->birg->exec_freq);
+ blk_sched = be_create_block_schedule(irg);
// emit function prolog
sparc_emit_func_prolog(irg);
last_block = block;
}
-
- //irg_walk_blkwise_graph(irg, NULL, sparc_gen_block, NULL);
-
// emit function epilog
sparc_emit_func_epilog(irg);
}
projects / libfirm / blobdiff