/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
#include "irargs_t.h"
#include "error.h"
#include "raw_bitset.h"
+#include "dbginfo.h"
#include "../besched.h"
#include "../beblocksched.h"
#include "../benode_t.h"
+#define BLOCK_PREFIX ".L"
+
#define SNPRINTF_BUF_LEN 128
-static const arch_env_t *arch_env = NULL;
+DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
+
+static const arch_env_t *arch_env = NULL;
+static const arm_code_gen_t *cg;
+static const arm_isa_t *isa;
+static set *sym_or_tv;
/**
* Returns the register at in position pos.
*/
-static const arch_register_t *get_in_reg(const arch_env_t *arch_env, const ir_node *irn, int pos) {
+static const arch_register_t *get_in_reg(const ir_node *irn, int pos) {
ir_node *op;
const arch_register_t *reg = NULL;
/**
* Returns the register at out position pos.
*/
-static const arch_register_t *get_out_reg(const arch_env_t *arch_env,
- const ir_node *node, int pos)
+static const arch_register_t *get_out_reg(const ir_node *node, int pos)
{
ir_node *proj;
const arch_register_t *reg = NULL;
* |_| |_|
*************************************************************/
-/**
- * Emits a block label from the given block.
- */
-static void arm_emit_block_label(arm_emit_env_t *env, const ir_node *block) {
- be_emit_irprintf(env->emit, "BLOCK_%u", get_irn_node_nr(block));
-}
-
/**
* Emit the name of the source register at given input position.
*/
-void arm_emit_source_register(arm_emit_env_t *env, const ir_node *node, int pos) {
- const arch_register_t *reg = get_in_reg(env->arch_env, node, pos);
- be_emit_string(env->emit, arch_register_get_name(reg));
+void arm_emit_source_register(const ir_node *node, int pos) {
+ const arch_register_t *reg = get_in_reg(node, pos);
+ be_emit_string(arch_register_get_name(reg));
}
/**
* Emit the name of the destination register at given output position.
*/
-void arm_emit_dest_register(arm_emit_env_t *env, const ir_node *node, int pos) {
- const arch_register_t *reg = get_out_reg(env->arch_env, node, pos);
- be_emit_string(env->emit, arch_register_get_name(reg));
+void arm_emit_dest_register(const ir_node *node, int pos) {
+ const arch_register_t *reg = get_out_reg(node, pos);
+ be_emit_string(arch_register_get_name(reg));
}
/**
* Emit a node's offset.
*/
-void arm_emit_offset(arm_emit_env_t *env, const ir_node *node) {
+void arm_emit_offset(const ir_node *node) {
int offset = 0;
ir_op *irn_op = get_irn_op(node);
- if (irn_op == op_be_StackParam) {
- ir_entity *ent = be_get_frame_entity(node);
- offset = get_entity_offset(ent);
- } else if (irn_op == op_be_Reload || irn_op == op_be_Spill) {
+ if (irn_op == op_be_Reload || irn_op == op_be_Spill) {
ir_entity *ent = be_get_frame_entity(node);
offset = get_entity_offset(ent);
} else if (irn_op == op_be_IncSP) {
assert(!"unimplemented arm_emit_offset for this node type");
panic("unimplemented arm_emit_offset for this node type");
}
- be_emit_irprintf(env->emit, "%d", offset);
+ be_emit_irprintf("%d", offset);
}
/**
* Emit the arm fpa instruction suffix depending on the mode.
*/
-static void arm_emit_fpa_postfix(arm_emit_env_t *env, ir_mode *mode) {
+static void arm_emit_fpa_postfix(const ir_mode *mode) {
int bits = get_mode_size_bits(mode);
if (bits == 32)
- be_emit_char(env->emit, 's');
+ be_emit_char('s');
else if (bits == 64)
- be_emit_char(env->emit, 'd');
+ be_emit_char('d');
else
- be_emit_char(env->emit, 'e');
+ be_emit_char('e');
}
/**
* Emit the instruction suffix depending on the mode.
*/
-void arm_emit_mode(arm_emit_env_t *env, const ir_node *node) {
+void arm_emit_mode(const ir_node *node) {
ir_mode *mode;
if (is_arm_irn(node)) {
} else {
mode = get_irn_mode(node);
}
- arm_emit_fpa_postfix(env, mode);
-}
-
-
-/**
- * Returns non-zero if a mode has a Immediate attribute.
- */
-int is_immediate_node(const ir_node *irn) {
- const arm_attr_t *attr = get_arm_attr_const(irn);
- return ARM_GET_SHF_MOD(attr) == ARM_SHF_IMM;
+ arm_emit_fpa_postfix(mode);
}
/**
* Emit a const or SymConst value.
*/
-void arm_emit_immediate(arm_emit_env_t *env, const ir_node *node) {
- if (is_immediate_node(node)) {
- be_emit_irprintf(env->emit, "#0x%X", arm_decode_imm_w_shift(get_arm_value(node)));
+void arm_emit_immediate(const ir_node *node) {
+ const arm_attr_t *attr = get_arm_attr_const(node);
+
+ if (ARM_GET_SHF_MOD(attr) == ARM_SHF_IMM) {
+ be_emit_irprintf("#0x%X", arm_decode_imm_w_shift(get_arm_value(node)));
+ } else if (ARM_GET_FPA_IMM(attr)) {
+ be_emit_irprintf("#0x%F", get_arm_value(node));
} else if (is_arm_SymConst(node))
- be_emit_ident(env->emit, get_arm_symconst_id(node));
+ be_emit_ident(get_arm_symconst_id(node));
else {
assert(!"not a Constant");
}
/**
* Returns the tarval or offset of an arm node as a string.
*/
-void arm_emit_shift(arm_emit_env_t *env, const ir_node *node) {
+void arm_emit_shift(const ir_node *node) {
arm_shift_modifier mod;
mod = get_arm_shift_modifier(node);
if (ARM_HAS_SHIFT(mod)) {
long v = get_tarval_long(get_arm_value(node));
- be_emit_irprintf(env->emit, ", %s #%l", arm_shf_mod_name(mod), v);
+ be_emit_irprintf(", %s #%l", arm_shf_mod_name(mod), v);
}
}
/** An entry in the sym_or_tv set. */
-typedef struct sym_or_tv {
+typedef struct sym_or_tv_t {
union {
ident *id; /**< An ident. */
tarval *tv; /**< A tarval. */
} u;
unsigned label; /**< the associated label. */
char is_ident; /**< Non-zero if an ident is stored. */
-} sym_or_tv;
+} sym_or_tv_t;
/**
* Returns a unique label. This number will not be used a second time.
/**
* Emit a SymConst.
*/
-static void emit_arm_SymConst(arm_emit_env_t *env, const ir_node *irn) {
- sym_or_tv key, *entry;
+static void emit_arm_SymConst(const ir_node *irn) {
+ sym_or_tv_t key, *entry;
unsigned label;
key.u.id = get_arm_symconst_id(irn);
key.is_ident = 1;
key.label = 0;
- entry = (sym_or_tv *)set_insert(env->sym_or_tv, &key, sizeof(key), HASH_PTR(key.u.generic));
+ entry = (sym_or_tv_t *)set_insert(sym_or_tv, &key, sizeof(key), HASH_PTR(key.u.generic));
if (entry->label == 0) {
/* allocate a label */
entry->label = get_unique_label();
label = entry->label;
/* load the symbol indirect */
- be_emit_cstring(env->emit, "\tldr ");
- arm_emit_dest_register(env, irn, 0);
- be_emit_irprintf(env->emit, ", .L%u", label);
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tldr ");
+ arm_emit_dest_register(irn, 0);
+ be_emit_irprintf(", .L%u", label);
+ be_emit_finish_line_gas(irn);
}
/**
* Emit a floating point fpa constant.
*/
-static void emit_arm_fpaConst(arm_emit_env_t *env, const ir_node *irn) {
- sym_or_tv key, *entry;
+static void emit_arm_fpaConst(const ir_node *irn) {
+ sym_or_tv_t key, *entry;
unsigned label;
ir_mode *mode;
key.u.tv = get_arm_value(irn);
key.is_ident = 0;
key.label = 0;
- entry = (sym_or_tv *)set_insert(env->sym_or_tv, &key, sizeof(key), HASH_PTR(key.u.generic));
+ entry = (sym_or_tv_t *)set_insert(sym_or_tv, &key, sizeof(key), HASH_PTR(key.u.generic));
if (entry->label == 0) {
/* allocate a label */
entry->label = get_unique_label();
/* load the tarval indirect */
mode = get_irn_mode(irn);
- be_emit_cstring(env->emit, "\tldf");
- arm_emit_fpa_postfix(env, mode);
- be_emit_char(env->emit, ' ');
+ be_emit_cstring("\tldf");
+ arm_emit_fpa_postfix(mode);
+ be_emit_char(' ');
- arm_emit_dest_register(env, irn, 0);
- be_emit_irprintf(env->emit, ", .L%u", label);
- be_emit_finish_line_gas(env->emit, irn);
+ arm_emit_dest_register(irn, 0);
+ be_emit_irprintf(", .L%u", label);
+ be_emit_finish_line_gas(irn);
}
/**
* Returns the next block in a block schedule.
*/
-static ir_node *sched_next_block(ir_node *block) {
+static ir_node *sched_next_block(const ir_node *block) {
return get_irn_link(block);
}
/**
- * Emit a conditional jump.
+ * Returns the target block for a control flow node.
+ */
+static ir_node *get_cfop_target_block(const ir_node *irn) {
+ return get_irn_link(irn);
+}
+
+/**
+ * Emits a block label for the given block.
+ */
+static void arm_emit_block_name(const ir_node *block) {
+ if (has_Block_label(block)) {
+ be_emit_string(be_gas_label_prefix());
+ be_emit_irprintf("%lu", get_Block_label(block));
+ } else {
+ be_emit_cstring(BLOCK_PREFIX);
+ be_emit_irprintf("%d", get_irn_node_nr(block));
+ }
+}
+
+/**
+ * Emit the target label for a control flow node.
*/
-static void emit_arm_CondJmp(arm_emit_env_t *env, const ir_node *irn) {
+static void arm_emit_cfop_target(const ir_node *irn) {
+ ir_node *block = get_cfop_target_block(irn);
+
+ arm_emit_block_name(block);
+}
+
+/**
+ * Emit a Compare with conditional branch.
+ */
+static void emit_arm_CmpBra(const ir_node *irn) {
const ir_edge_t *edge;
- ir_node *true_block = NULL;
- ir_node *false_block = NULL;
+ 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);
ir_mode *opmode = get_irn_mode(op1);
const char *suffix;
foreach_out_edge(irn, edge) {
ir_node *proj = get_edge_src_irn(edge);
long nr = get_Proj_proj(proj);
- ir_node *block = get_irn_link(proj);
if (nr == pn_Cond_true) {
- true_block = block;
+ proj_true = proj;
} else {
- false_block = block;
+ proj_false = proj;
}
}
+ /* for now, the code works for scheduled and non-schedules blocks */
+ block = get_nodes_block(irn);
+
+ /* we have a block schedule */
+ next_block = sched_next_block(block);
+
if (proj_num == pn_Cmp_False) {
/* always false: should not happen */
- be_emit_cstring(env->emit, "\tb ");
- arm_emit_block_label(env, false_block);
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tb ");
+ arm_emit_cfop_target(proj_false);
+ be_emit_finish_line_gas(proj_false);
} else if (proj_num == pn_Cmp_True) {
/* always true: should not happen */
- be_emit_cstring(env->emit, "\tb ");
- arm_emit_block_label(env, true_block);
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tb ");
+ arm_emit_cfop_target(proj_true);
+ be_emit_finish_line_gas(proj_true);
} else {
- ir_node *block = get_nodes_block(irn);
-
if (mode_is_float(opmode)) {
suffix = "ICHWILLIMPLEMENTIERTWERDEN";
- be_emit_cstring(env->emit, "\tfcmp ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 1);
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tfcmp ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 1);
+ be_emit_finish_line_gas(irn);
- be_emit_cstring(env->emit, "\tfmstat");
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* FCSPR -> CPSR */");
- be_emit_finish_line_gas(env->emit, NULL);
+ be_emit_cstring("\tfmstat");
+ be_emit_pad_comment();
+ be_emit_cstring("/* FCSPR -> CPSR */");
+ be_emit_finish_line_gas(NULL);
} else {
- if (true_block == sched_next_block(block)) {
- /* negate it */
- proj_num = get_negated_pnc(proj_num, opmode);
+ if (get_cfop_target_block(proj_true) == next_block) {
+ /* exchange both proj's so the second one can be omitted */
+ const ir_node *t = proj_true;
+
+ proj_true = proj_false;
+ proj_false = t;
+ proj_num = get_negated_pnc(proj_num, mode_Iu);
}
switch (proj_num) {
case pn_Cmp_Eq: suffix = "eq"; break;
case pn_Cmp_Leg: suffix = "al"; break;
default: assert(!"Cmp unsupported"); suffix = "al";
}
- be_emit_cstring(env->emit, "\tcmp ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 1);
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tcmp ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 1);
+ be_emit_finish_line_gas(irn);
}
- if (true_block == sched_next_block(block)) {
- be_emit_irprintf(env->emit, "\tb%s ", suffix);
- arm_emit_block_label(env, true_block);
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* false case */");
- be_emit_finish_line_gas(env->emit, NULL);
-
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* fallthrough ");
- arm_emit_block_label(env, false_block);
- be_emit_cstring(env->emit, " */");
- be_emit_finish_line_gas(env->emit, NULL);
+ /* emit the true proj */
+ be_emit_irprintf("\tb%s ", suffix);
+ arm_emit_cfop_target(proj_true);
+ be_emit_finish_line_gas(proj_true);
+
+ if (get_cfop_target_block(proj_false) == next_block) {
+ be_emit_cstring("\t/* fallthrough to ");
+ arm_emit_cfop_target(proj_false);
+ be_emit_cstring(" */");
+ be_emit_finish_line_gas(proj_false);
} else {
- be_emit_irprintf(env->emit, "\tb%s ", suffix);
- arm_emit_block_label(env, true_block);
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* true case */");
- be_emit_finish_line_gas(env->emit, NULL);
-
- if (false_block == sched_next_block(block)) {
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* fallthrough ");
- arm_emit_block_label(env, false_block);
- be_emit_cstring(env->emit, " */");
- be_emit_finish_line_gas(env->emit, NULL);
- } else {
- be_emit_cstring(env->emit, "b ");
- arm_emit_block_label(env, false_block);
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* false case */");
- be_emit_finish_line_gas(env->emit, NULL);
- }
+ be_emit_cstring("b ");
+ arm_emit_cfop_target(proj_false);
+ be_emit_finish_line_gas(proj_false);
}
}
}
+/**
+ * Emit a Compare with conditional branch.
+ */
+static void emit_arm_fpaCmfBra(const ir_node *irn) {
+ (void) irn;
+}
+
+/**
+ * Emit a Compare with conditional branch.
+ */
+static void emit_arm_fpaCmfeBra(const ir_node *irn) {
+ (void) irn;
+}
+
+/** Sort register in ascending order. */
+static int reg_cmp(const void *a, const void *b) {
+ const arch_register_t * const *ra = a;
+ const arch_register_t * const *rb = b;
+
+ return *ra < *rb ? -1 : (*ra != *rb);
+}
+
/**
* Create the CopyB instruction sequence.
*/
-static void emit_arm_CopyB(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_arm_CopyB(const ir_node *irn) {
unsigned int size = get_tarval_long(get_arm_value(irn));
- be_emit_cstring(env->emit, "/* MemCopy (");
- arm_emit_source_register(env, irn, 1);
- be_emit_cstring(env->emit, ")->(");
- arm_emit_source_register(env, irn, 0);
- be_emit_irprintf(env->emit, " [%d bytes], Uses ", size);
- arm_emit_source_register(env, irn, 2);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 3);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 4);
- be_emit_cstring(env->emit, ", and %r12 */");
- be_emit_finish_line_gas(env->emit, NULL);
-
- assert ( size > 0 && "CopyB needs size > 0" );
- if (size & 3)
+ const char *tgt = arch_register_get_name(get_in_reg(irn, 0));
+ const char *src = arch_register_get_name(get_in_reg(irn, 1));
+ const char *t0, *t1, *t2, *t3;
+
+ const arch_register_t *tmpregs[4];
+
+ /* collect the temporary registers and sort them, we need ascending order */
+ tmpregs[0] = get_in_reg(irn, 2);
+ tmpregs[1] = get_in_reg(irn, 3);
+ tmpregs[2] = get_in_reg(irn, 4);
+ tmpregs[3] = &arm_gp_regs[REG_R12];
+
+ /* Note: R12 is always the last register because the RA did not assign higher ones */
+ qsort((void *)tmpregs, 3, sizeof(tmpregs[0]), reg_cmp);
+
+ /* need ascending order */
+ t0 = arch_register_get_name(tmpregs[0]);
+ t1 = arch_register_get_name(tmpregs[1]);
+ t2 = arch_register_get_name(tmpregs[2]);
+ t3 = arch_register_get_name(tmpregs[3]);
+
+ be_emit_cstring("/* MemCopy (");
+ be_emit_string(src);
+ be_emit_cstring(")->(");
+ arm_emit_source_register(irn, 0);
+ be_emit_irprintf(" [%d bytes], Uses ", size);
+ be_emit_string(t0);
+ be_emit_cstring(", ");
+ be_emit_string(t1);
+ be_emit_cstring(", ");
+ be_emit_string(t2);
+ be_emit_cstring(", and ");
+ be_emit_string(t3);
+ be_emit_cstring("*/");
+ be_emit_finish_line_gas(NULL);
+
+ assert(size > 0 && "CopyB needs size > 0" );
+
+ if (size & 3) {
+ assert(!"strange hack enabled: copy more bytes than needed!");
size += 4;
+ }
+
size >>= 2;
- switch(size & 3) {
+ switch (size & 3) {
case 0:
break;
case 1:
- be_emit_cstring(env->emit, "\tldr %%r12, [");
- arm_emit_source_register(env, irn, 1);
- be_emit_cstring(env->emit, ", #0]!");
- be_emit_finish_line_gas(env->emit, NULL);
-
- be_emit_cstring(env->emit, "\tstr %%r12, [");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", #0]!");
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tldr ");
+ be_emit_string(t3);
+ be_emit_cstring(", [");
+ be_emit_string(src);
+ be_emit_cstring(", #0]");
+ be_emit_finish_line_gas(NULL);
+
+ be_emit_cstring("\tstr ");
+ be_emit_string(t3);
+ be_emit_cstring(", [");
+ be_emit_string(tgt);
+ be_emit_cstring(", #0]");
+ be_emit_finish_line_gas(irn);
break;
case 2:
- be_emit_cstring(env->emit, "\tldmia ");
- arm_emit_source_register(env, irn, 1);
- be_emit_cstring(env->emit, "!, {%r12, ");
- arm_emit_source_register(env, irn, 2);
- be_emit_char(env->emit, '}');
- be_emit_finish_line_gas(env->emit, NULL);
-
- be_emit_cstring(env->emit, "\tstmia ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, "!, {%r12, ");
- arm_emit_source_register(env, irn, 2);
- be_emit_char(env->emit, '}');
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tldmia ");
+ be_emit_string(src);
+ be_emit_cstring("!, {");
+ be_emit_string(t0);
+ be_emit_cstring(", ");
+ be_emit_string(t1);
+ be_emit_char('}');
+ be_emit_finish_line_gas(NULL);
+
+ be_emit_cstring("\tstmia ");
+ be_emit_string(tgt);
+ be_emit_cstring("!, {");
+ be_emit_string(t0);
+ be_emit_cstring(", ");
+ be_emit_string(t1);
+ be_emit_char('}');
+ be_emit_finish_line_gas(irn);
break;
case 3:
- be_emit_cstring(env->emit, "\tldmia ");
- arm_emit_source_register(env, irn, 1);
- be_emit_cstring(env->emit, "!, {%r12, ");
- arm_emit_source_register(env, irn, 2);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 3);
- be_emit_char(env->emit, '}');
- be_emit_finish_line_gas(env->emit, NULL);
-
- be_emit_cstring(env->emit, "\tstmia ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, "!, {%r12, ");
- arm_emit_source_register(env, irn, 2);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 3);
- be_emit_char(env->emit, '}');
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tldmia ");
+ be_emit_string(src);
+ be_emit_cstring("!, {");
+ be_emit_string(t0);
+ be_emit_cstring(", ");
+ be_emit_string(t1);
+ be_emit_cstring(", ");
+ be_emit_string(t2);
+ be_emit_char('}');
+ be_emit_finish_line_gas(NULL);
+
+ be_emit_cstring("\tstmia ");
+ be_emit_string(tgt);
+ be_emit_cstring("!, {");
+ be_emit_string(t0);
+ be_emit_cstring(", ");
+ be_emit_string(t1);
+ be_emit_cstring(", ");
+ be_emit_string(t2);
+ be_emit_char('}');
+ be_emit_finish_line_gas(irn);
break;
}
size >>= 2;
while (size) {
- be_emit_cstring(env->emit, "\tldmia ");
- arm_emit_source_register(env, irn, 1);
- be_emit_cstring(env->emit, "!, {%r12, ");
- arm_emit_source_register(env, irn, 2);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 3);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 4);
- be_emit_char(env->emit, '}');
- be_emit_finish_line_gas(env->emit, NULL);
-
- be_emit_cstring(env->emit, "\tstmia ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, "!, {%r12, ");
- arm_emit_source_register(env, irn, 2);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 3);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 4);
- be_emit_char(env->emit, '}');
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tldmia ");
+ be_emit_string(src);
+ be_emit_cstring("!, {");
+ be_emit_string(t0);
+ be_emit_cstring(", ");
+ be_emit_string(t1);
+ be_emit_cstring(", ");
+ be_emit_string(t2);
+ be_emit_cstring(", ");
+ be_emit_string(t3);
+ be_emit_char('}');
+ be_emit_finish_line_gas(NULL);
+
+ be_emit_cstring("\tstmia ");
+ be_emit_string(tgt);
+ be_emit_cstring("!, {");
+ be_emit_string(t0);
+ be_emit_cstring(", ");
+ be_emit_string(t1);
+ be_emit_cstring(", ");
+ be_emit_string(t2);
+ be_emit_cstring(", ");
+ be_emit_string(t3);
+ be_emit_char('}');
+ be_emit_finish_line_gas(irn);
--size;
}
}
-static void emit_arm_SwitchJmp(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_arm_SwitchJmp(const ir_node *irn) {
const ir_edge_t *edge;
ir_node *proj;
int i;
ir_node **projs;
int n_projs;
int block_nr;
- ir_node *default_block = NULL;
+ ir_node *default_proj = NULL;
block_nr = get_irn_node_nr(irn);
n_projs = get_arm_SwitchJmp_n_projs(irn);
assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
if (get_Proj_proj(proj) == get_arm_SwitchJmp_default_proj_num(irn))
- default_block = get_irn_link(proj);
+ default_proj = proj;
projs[get_Proj_proj(proj)] = proj;
}
- assert(default_block != NULL);
+ assert(default_proj != NULL && "SwitchJmp should have a Default Proj");
/*
CMP %1S, n_projs - 1
BHI default
*/
- be_emit_cstring(env->emit, "\tcmp ");
- arm_emit_source_register(env, irn, 0);
- be_emit_irprintf(env->emit, ", #%u", n_projs - 1);
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\tcmp ");
+ arm_emit_source_register(irn, 0);
+ be_emit_irprintf(", #%u", n_projs - 1);
+ be_emit_finish_line_gas(irn);
- be_emit_cstring(env->emit, "\tbhi ");
- arm_emit_block_label(env, default_block);
- be_emit_finish_line_gas(env->emit, NULL);
+ be_emit_cstring("\tbhi ");
+ arm_emit_cfop_target(default_proj);
+ be_emit_finish_line_gas(default_proj);
/*
LDR %r12, .TABLE_X_START
LDR %r15, %r12
*/
- be_emit_irprintf(env->emit, "\tldr %%r12, TABLE_%d_START", block_nr);
- be_emit_finish_line_gas(env->emit, NULL);
+ be_emit_irprintf("\tldr %%r12, TABLE_%d_START", block_nr);
+ be_emit_finish_line_gas(NULL);
- be_emit_irprintf(env->emit, "\tadd %%r12, %%r12, ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", LSL #2");
- be_emit_finish_line_gas(env->emit, NULL);
+ be_emit_irprintf("\tadd %%r12, %%r12, ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", LSL #2");
+ be_emit_finish_line_gas(NULL);
- be_emit_cstring(env->emit, "\tldr %r15, [%r12, #0]");
- be_emit_finish_line_gas(env->emit, NULL);
+ be_emit_cstring("\tldr %r15, [%r12, #0]");
+ be_emit_finish_line_gas(NULL);
- be_emit_irprintf(env->emit, "TABLE_%d_START:\n\t.word\tTABLE_%d", block_nr, block_nr);
- be_emit_finish_line_gas(env->emit, NULL);
- be_emit_irprintf(env->emit, "\t.align 2");
- be_emit_finish_line_gas(env->emit, NULL);
- be_emit_irprintf(env->emit, "TABLE_%d:", block_nr);
- be_emit_finish_line_gas(env->emit, NULL);
+ be_emit_irprintf("TABLE_%d_START:\n\t.word\tTABLE_%d", block_nr, block_nr);
+ be_emit_finish_line_gas(NULL);
+ be_emit_irprintf("\t.align 2");
+ be_emit_finish_line_gas(NULL);
+ be_emit_irprintf("TABLE_%d:", block_nr);
+ be_emit_finish_line_gas(NULL);
for (i = 0; i < n_projs; ++i) {
- ir_node *block;
proj = projs[i];
- if ( proj ) {
- block = get_irn_link(proj);
- } else {
- block = get_irn_link(projs[get_arm_SwitchJmp_default_proj_num(irn)]);
+ if (proj == NULL) {
+ proj = projs[get_arm_SwitchJmp_default_proj_num(irn)];
}
- be_emit_cstring(env->emit, "\t.word\t");
- arm_emit_block_label(env, block);
- be_emit_finish_line_gas(env->emit, NULL);
+ be_emit_cstring("\t.word\t");
+ arm_emit_cfop_target(proj);
+ be_emit_finish_line_gas(proj);
}
- be_emit_irprintf(env->emit, "\t.align 2\n");
- be_emit_finish_line_gas(env->emit, NULL);
+ be_emit_irprintf("\t.align 2\n");
+ be_emit_finish_line_gas(NULL);
xfree(projs);
}
/* emit_be */
/************************************************************************/
-static void emit_be_Call(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_be_Call(const ir_node *irn) {
ir_entity *ent = be_Call_get_entity(irn);
- be_emit_cstring(env->emit, "\tbl ");
+ be_emit_cstring("\tbl ");
if (ent) {
set_entity_backend_marked(ent, 1);
- be_emit_ident(env->emit, get_entity_ld_ident(ent));
+ be_emit_ident(get_entity_ld_ident(ent));
} else {
- arm_emit_source_register(env, irn, be_pos_Call_ptr);
+ arm_emit_source_register(irn, be_pos_Call_ptr);
}
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_finish_line_gas(irn);
}
/** Emit an IncSP node */
-static void emit_be_IncSP(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_be_IncSP(const ir_node *irn) {
int offs = be_get_IncSP_offset(irn);
if (offs != 0) {
- be_emit_cstring(env->emit, "\tadd ");
- arm_emit_dest_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", #");
- arm_emit_offset(env, irn);
+ be_emit_cstring("\tadd ");
+ arm_emit_dest_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", #");
+ arm_emit_offset(irn);
} else {
- be_emit_cstring(env->emit, "\t/* omitted IncSP(");
- arm_emit_offset(env, irn);
- be_emit_cstring(env->emit,") */");
+ be_emit_cstring("\t/* omitted IncSP(");
+ arm_emit_offset(irn);
+ be_emit_cstring(") */");
}
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_finish_line_gas(irn);
}
-static void emit_be_Copy(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_be_Copy(const ir_node *irn) {
ir_mode *mode = get_irn_mode(irn);
- if (get_in_reg(env->arch_env, irn, 0) == get_out_reg(env->arch_env, irn, 0)) {
- be_emit_cstring(env->emit, "\t/* omitted Copy: ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, " -> ");
- arm_emit_dest_register(env, irn, 0);
- be_emit_finish_line_gas(env->emit, irn);
+ if (get_in_reg(irn, 0) == get_out_reg(irn, 0)) {
+ be_emit_cstring("\t/* omitted Copy: ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(" -> ");
+ arm_emit_dest_register(irn, 0);
+ be_emit_finish_line_gas(irn);
return;
}
if (mode_is_float(mode)) {
- if (USE_FPA(env->cg->isa)) {
- be_emit_cstring(env->emit, "\tmvf");
- arm_emit_mode(env, irn);
- be_emit_char(env->emit, ' ');
- arm_emit_dest_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 0);
- be_emit_finish_line_gas(env->emit, irn);
+ if (USE_FPA(isa)) {
+ be_emit_cstring("\tmvf");
+ arm_emit_mode(irn);
+ be_emit_char(' ');
+ arm_emit_dest_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 0);
+ be_emit_finish_line_gas(irn);
} else {
assert(0 && "move not supported for this mode");
panic("emit_be_Copy: move not supported for this mode");
}
- } else if (mode_is_numP(mode)) {
- be_emit_cstring(env->emit, "\tmov ");
- arm_emit_dest_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 0);
- be_emit_finish_line_gas(env->emit, irn);
+ } else if (mode_is_data(mode)) {
+ be_emit_cstring("\tmov ");
+ arm_emit_dest_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 0);
+ be_emit_finish_line_gas(irn);
} else {
assert(0 && "move not supported for this mode");
panic("emit_be_Copy: move not supported for this mode");
/**
* Emit code for a Spill.
*/
-static void emit_be_Spill(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_be_Spill(const ir_node *irn) {
ir_mode *mode = get_irn_mode(be_get_Spill_val(irn));
if (mode_is_float(mode)) {
- if (USE_FPA(env->cg->isa)) {
- be_emit_cstring(env->emit, "\tstf");
- arm_emit_fpa_postfix(env, mode);
- be_emit_char(env->emit, ' ');
+ if (USE_FPA(cg->isa)) {
+ be_emit_cstring("\tstf");
+ arm_emit_fpa_postfix(mode);
+ be_emit_char(' ');
} else {
assert(0 && "spill not supported for this mode");
panic("emit_be_Spill: spill not supported for this mode");
}
} else if (mode_is_dataM(mode)) {
- be_emit_cstring(env->emit, "\tstr ");
+ be_emit_cstring("\tstr ");
} else {
assert(0 && "spill not supported for this mode");
panic("emit_be_Spill: spill not supported for this mode");
}
- arm_emit_source_register(env, irn, 1);
- be_emit_cstring(env->emit, ", [");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", #");
- arm_emit_offset(env, irn);
- be_emit_char(env->emit, ']');
- be_emit_finish_line_gas(env->emit, irn);
+ arm_emit_source_register(irn, 1);
+ be_emit_cstring(", [");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", #");
+ arm_emit_offset(irn);
+ be_emit_char(']');
+ be_emit_finish_line_gas(irn);
}
/**
* Emit code for a Reload.
*/
-static void emit_be_Reload(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_be_Reload(const ir_node *irn) {
ir_mode *mode = get_irn_mode(irn);
if (mode_is_float(mode)) {
- if (USE_FPA(env->cg->isa)) {
- be_emit_cstring(env->emit, "\tldf");
- arm_emit_fpa_postfix(env, mode);
- be_emit_char(env->emit, ' ');
+ if (USE_FPA(cg->isa)) {
+ be_emit_cstring("\tldf");
+ arm_emit_fpa_postfix(mode);
+ be_emit_char(' ');
} else {
assert(0 && "reload not supported for this mode");
panic("emit_be_Reload: reload not supported for this mode");
}
} else if (mode_is_dataM(mode)) {
- be_emit_cstring(env->emit, "\tldr ");
+ be_emit_cstring("\tldr ");
} else {
assert(0 && "reload not supported for this mode");
panic("emit_be_Reload: reload not supported for this mode");
}
- arm_emit_dest_register(env, irn, 0);
- be_emit_cstring(env->emit, ", [");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", #");
- arm_emit_offset(env, irn);
- be_emit_char(env->emit, ']');
- be_emit_finish_line_gas(env->emit, irn);
+ arm_emit_dest_register(irn, 0);
+ be_emit_cstring(", [");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", #");
+ arm_emit_offset(irn);
+ be_emit_char(']');
+ be_emit_finish_line_gas(irn);
}
-static void emit_be_Perm(arm_emit_env_t *env, const ir_node *irn) {
- be_emit_cstring(env->emit, "\teor ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 1);
- be_emit_finish_line_gas(env->emit, NULL);
-
- be_emit_cstring(env->emit, "\teor ");
- arm_emit_source_register(env, irn, 1);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 1);
- be_emit_finish_line_gas(env->emit, NULL);
-
- be_emit_cstring(env->emit, "\teor ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", ");
- arm_emit_source_register(env, irn, 1);
- be_emit_finish_line_gas(env->emit, irn);
-}
-
-static void emit_be_StackParam(arm_emit_env_t *env, const ir_node *irn) {
- ir_mode *mode = get_irn_mode(irn);
-
- if (mode_is_float(mode)) {
- if (USE_FPA(env->cg->isa)) {
- be_emit_cstring(env->emit,"\tldf");
- arm_emit_fpa_postfix(env, mode);
- be_emit_char(env->emit, ' ');
- } else {
- assert(0 && "stackparam not supported for this mode");
- panic("emit_be_StackParam: stackparam not supported for this mode");
- }
- } else {
- be_emit_cstring(env->emit,"\tldr ");
- }
- arm_emit_dest_register(env, irn, 0);
- be_emit_cstring(env->emit, ", [");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit,", #");
- arm_emit_offset(env, irn);
- be_emit_finish_line_gas(env->emit, irn);
+static void emit_be_Perm(const ir_node *irn) {
+ be_emit_cstring("\teor ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 1);
+ be_emit_finish_line_gas(NULL);
+
+ be_emit_cstring("\teor ");
+ arm_emit_source_register(irn, 1);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 1);
+ be_emit_finish_line_gas(NULL);
+
+ be_emit_cstring("\teor ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", ");
+ arm_emit_source_register(irn, 1);
+ be_emit_finish_line_gas(irn);
}
/************************************************************************/
/* emit */
/************************************************************************/
-static void emit_Jmp(arm_emit_env_t *env, const ir_node *irn) {
- const ir_edge_t *edge = get_irn_out_edge_first(irn);
- ir_node *target_block = get_edge_src_irn(edge);
- ir_node *block = get_nodes_block(irn);
-
- if (target_block == sched_next_block(block)) {
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* fallthrough ");
- arm_emit_block_label(env, target_block);
- be_emit_cstring(env->emit, " */");
- be_emit_finish_line_gas(env->emit, NULL);
+static void emit_Jmp(const ir_node *node) {
+ ir_node *block, *next_block;
+
+ /* for now, the code works for scheduled and non-schedules blocks */
+ block = get_nodes_block(node);
+
+ /* we have a block schedule */
+ next_block = sched_next_block(block);
+ if (get_cfop_target_block(node) != next_block) {
+ be_emit_cstring("\tb ");
+ arm_emit_cfop_target(node);
} else {
- be_emit_cstring(env->emit, "\tb ");
- arm_emit_block_label(env, target_block);
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\t/* fallthrough to ");
+ arm_emit_cfop_target(node);
+ be_emit_cstring(" */");
}
+ be_emit_finish_line_gas(node);
}
-static void emit_arm_fpaDbl2GP(arm_emit_env_t *env, const ir_node *irn) {
- be_emit_cstring(env->emit, "\tstfd ");
- arm_emit_source_register(env, irn, 0);
- be_emit_cstring(env->emit, ", [sp, #-8]!");
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* Push fp to stack */");
- be_emit_finish_line_gas(env->emit, NULL);
-
- be_emit_cstring(env->emit, "\tldmfd sp!, {");
- arm_emit_dest_register(env, irn, 1);
- be_emit_cstring(env->emit, ", ");
- arm_emit_dest_register(env, irn, 0);
- be_emit_char(env->emit, '}');
- be_emit_pad_comment(env->emit);
- be_emit_cstring(env->emit, "/* Pop destination */");
- be_emit_finish_line_gas(env->emit, irn);
+static void emit_arm_fpaDbl2GP(const ir_node *irn) {
+ be_emit_cstring("\tstfd ");
+ arm_emit_source_register(irn, 0);
+ be_emit_cstring(", [sp, #-8]!");
+ be_emit_pad_comment();
+ be_emit_cstring("/* Push fp to stack */");
+ be_emit_finish_line_gas(NULL);
+
+ be_emit_cstring("\tldmfd sp!, {");
+ arm_emit_dest_register(irn, 1);
+ be_emit_cstring(", ");
+ arm_emit_dest_register(irn, 0);
+ be_emit_char('}');
+ be_emit_pad_comment();
+ be_emit_cstring("/* Pop destination */");
+ be_emit_finish_line_gas(irn);
}
-static void emit_arm_LdTls(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_arm_LdTls(const ir_node *irn) {
+ (void) irn;
panic("TLS not supported for this target\n");
/* Er... our gcc does not support it... Install a newer toolchain. */
}
*
***********************************************************************************/
-static void emit_silence(arm_emit_env_t *env, const ir_node *irn) {
+static void emit_silence(const ir_node *irn) {
+ (void) irn;
/* Do nothing. */
}
/**
* The type of a emitter function.
*/
-typedef void (emit_func)(arm_emit_env_t *env, const ir_node *irn);
+typedef void (emit_func)(const ir_node *irn);
/**
* Set a node emitter. Make it a bit more type safe.
arm_register_spec_emitters();
/* other emitter functions */
- ARM_EMIT(CondJmp);
+ ARM_EMIT(CmpBra);
+ ARM_EMIT(fpaCmfBra);
+ ARM_EMIT(fpaCmfeBra);
ARM_EMIT(CopyB);
// ARM_EMIT(CopyB_i);
// ARM_EMIT(Const);
BE_EMIT(Spill);
BE_EMIT(Reload);
BE_EMIT(Perm);
- BE_EMIT(StackParam);
/* firm emitter */
EMIT(Jmp);
#undef SILENCE
}
+static const char *last_name = NULL;
+static unsigned last_line = -1;
+static unsigned num = -1;
+
+/**
+ * Emit the debug support for node node.
+ */
+static void arm_emit_dbg(const ir_node *irn) {
+ dbg_info *db = get_irn_dbg_info(irn);
+ unsigned lineno;
+ const char *fname = ir_retrieve_dbg_info(db, &lineno);
+
+ if (! cg->birg->main_env->options->stabs_debug_support)
+ return;
+
+ if (fname) {
+ if (last_name != fname) {
+ last_line = -1;
+ be_dbg_include_begin(cg->birg->main_env->db_handle, fname);
+ last_name = fname;
+ }
+ if (last_line != lineno) {
+ char name[64];
+
+ snprintf(name, sizeof(name), ".LM%u", ++num);
+ last_line = lineno;
+ be_dbg_line(cg->birg->main_env->db_handle, lineno, name);
+ be_emit_string(name);
+ be_emit_cstring(":\n");
+ be_emit_write_line();
+ }
+ }
+}
+
/**
* Emits code for a node.
*/
-static void arm_emit_node(arm_emit_env_t *env, const ir_node *irn) {
+static void arm_emit_node(const ir_node *irn) {
ir_op *op = get_irn_op(irn);
if (op->ops.generic) {
emit_func *emit = (emit_func *)op->ops.generic;
- (*emit)(env, irn);
+ arm_emit_dbg(irn);
+ (*emit)(irn);
} else {
- be_emit_cstring(env->emit, "\t/* TODO */");
- be_emit_finish_line_gas(env->emit, irn);
+ be_emit_cstring("\t/* TODO */");
+ be_emit_finish_line_gas(irn);
}
}
+/**
+ * emit the block label if needed.
+ */
+static void arm_emit_block_header(ir_node *block, ir_node *prev)
+{
+ int n_cfgpreds;
+ int need_label;
+ int i, arity;
+ ir_exec_freq *exec_freq = cg->birg->exec_freq;
+
+ need_label = 0;
+ n_cfgpreds = get_Block_n_cfgpreds(block);
+ if (n_cfgpreds == 1) {
+ ir_node *pred = get_Block_cfgpred(block, 0);
+ ir_node *pred_block = get_nodes_block(pred);
+
+ /* we don't need labels for fallthrough blocks, however switch-jmps
+ * are no fallthroughs */
+ if (pred_block == prev &&
+ !(is_Proj(pred) && is_arm_SwitchJmp(get_Proj_pred(pred)))) {
+ need_label = 0;
+ } else {
+ need_label = 1;
+ }
+ } else {
+ need_label = 1;
+ }
+
+ if (need_label) {
+ arm_emit_block_name(block);
+ be_emit_char(':');
+
+ be_emit_pad_comment();
+ be_emit_cstring(" /* preds:");
+
+ /* emit list of pred blocks in comment */
+ arity = get_irn_arity(block);
+ for (i = 0; i < arity; ++i) {
+ ir_node *predblock = get_Block_cfgpred_block(block, i);
+ be_emit_irprintf(" %d", get_irn_node_nr(predblock));
+ }
+ } else {
+ be_emit_cstring("\t/* ");
+ arm_emit_block_name(block);
+ be_emit_cstring(": ");
+ }
+ if (exec_freq != NULL) {
+ be_emit_irprintf(" freq: %f",
+ get_block_execfreq(exec_freq, block));
+ }
+ be_emit_cstring(" */\n");
+ be_emit_write_line();
+}
+
/**
* Walks over the nodes in a block connected by scheduling edges
* and emits code for each node.
*/
-void arm_gen_block(ir_node *block, void *ctx) {
- arm_emit_env_t *env = ctx;
+static void arm_gen_block(ir_node *block, ir_node *prev_block) {
ir_node *irn;
- arm_emit_block_label(env, block);
- be_emit_cstring(env->emit, ":\n");
- be_emit_write_line(env->emit);
-
+ arm_emit_block_header(block, prev_block);
+ arm_emit_dbg(block);
sched_foreach(block, irn) {
- arm_emit_node(env, irn);
+ arm_emit_node(irn);
}
}
-
/**
* Emits code for function start.
*/
-void arm_func_prolog(arm_emit_env_t *env, ir_graph *irg) {
- be_emit_env_t *eenv = env->emit;
+void arm_func_prolog(ir_graph *irg) {
ir_entity *ent = get_irg_entity(irg);
const char *irg_name = get_entity_ld_name(ent);
- be_emit_write_line(eenv);
- be_gas_emit_switch_section(eenv, GAS_SECTION_TEXT);
- be_emit_cstring(eenv, "\t.align 2\n");
+ be_emit_write_line();
+ be_gas_emit_switch_section(GAS_SECTION_TEXT);
+ be_emit_cstring("\t.align 2\n");
if (get_entity_visibility(ent) == visibility_external_visible)
- be_emit_irprintf(eenv, "\t.global %s\n", irg_name);
- be_emit_irprintf(eenv, "%s:\n", irg_name);
+ be_emit_irprintf("\t.global %s\n", irg_name);
+ be_emit_irprintf("%s:\n", irg_name);
}
/**
* Emits code for function end
*/
void arm_emit_end(FILE *F, ir_graph *irg) {
+ (void) irg;
fprintf(F, "\t.ident \"firmcc\"\n");
}
/**
+ * Block-walker:
* Sets labels for control flow nodes (jump target)
- * TODO: Jump optimization
*/
-void arm_gen_labels(ir_node *block, void *env) {
+static void arm_gen_labels(ir_node *block, void *env) {
ir_node *pred;
int n = get_Block_n_cfgpreds(block);
+ (void)env;
for (n--; n >= 0; n--) {
pred = get_Block_cfgpred(block, n);
* Compare two entries of the symbol or tarval set.
*/
static int cmp_sym_or_tv(const void *elt, const void *key, size_t size) {
- const sym_or_tv *p1 = elt;
- const sym_or_tv *p2 = key;
+ const sym_or_tv_t *p1 = elt;
+ const sym_or_tv_t *p2 = key;
+ (void) size;
/* as an identifier NEVER can point to a tarval, it's enough
to compare it this way */
/**
* Main driver. Emits the code for one routine.
*/
-void arm_gen_routine(const arm_code_gen_t *cg, ir_graph *irg)
-{
- arm_emit_env_t emit_env;
+void arm_gen_routine(const arm_code_gen_t *arm_cg, ir_graph *irg) {
ir_node **blk_sched;
int i, n;
+ ir_node *last_block = NULL;
- emit_env.emit = &cg->isa->emit;
- emit_env.arch_env = cg->arch_env;
- emit_env.cg = cg;
- emit_env.sym_or_tv = new_set(cmp_sym_or_tv, 8);
- FIRM_DBG_REGISTER(emit_env.mod, "firm.be.arm.emit");
+ cg = arm_cg;
+ arch_env = cg->arch_env;
+ sym_or_tv = new_set(cmp_sym_or_tv, 8);
- /* set the global arch_env (needed by print hooks) */
- arch_env = cg->arch_env;
arm_register_emitters();
/* create the block schedule. For now, we don't need it earlier. */
blk_sched = be_create_block_schedule(cg->irg, cg->birg->exec_freq);
- arm_func_prolog(&emit_env, irg);
- irg_block_walk_graph(irg, arm_gen_labels, NULL, &emit_env);
+ arm_func_prolog(irg);
+ irg_block_walk_graph(irg, arm_gen_labels, NULL, NULL);
n = ARR_LEN(blk_sched);
for (i = 0; i < n;) {
/* set here the link. the emitter expects to find the next block here */
set_irn_link(block, next_bl);
- arm_gen_block(block, &emit_env);
+ arm_gen_block(block, last_block);
+ last_block = block;
}
/* emit SymConst values */
- if (set_count(emit_env.sym_or_tv) > 0) {
- sym_or_tv *entry;
+ if (set_count(sym_or_tv) > 0) {
+ sym_or_tv_t *entry;
- be_emit_cstring(emit_env.emit, "\t.align 2\n");
+ be_emit_cstring("\t.align 2\n");
- foreach_set(emit_env.sym_or_tv, entry) {
- be_emit_irprintf(emit_env.emit, ".L%u:\n", entry->label);
+ foreach_set(sym_or_tv, entry) {
+ be_emit_irprintf(".L%u:\n", entry->label);
if (entry->is_ident) {
- be_emit_cstring(emit_env.emit, "\t.word\t");
- be_emit_ident(emit_env.emit, entry->u.id);
- be_emit_char(emit_env.emit, '\n');
- be_emit_write_line(emit_env.emit);
+ be_emit_cstring("\t.word\t");
+ be_emit_ident(entry->u.id);
+ be_emit_char('\n');
+ be_emit_write_line();
} else {
tarval *tv = entry->u.tv;
int i, size = get_mode_size_bytes(get_tarval_mode(tv));
unsigned v;
- /* beware: ARM fpa uses bigendian format */
+ /* beware: ARM fpa uses big endian format */
for (i = ((size + 3) & ~3) - 4; i >= 0; i -= 4) {
/* get 32 bits */
v = get_tarval_sub_bits(tv, i+3);
v = (v << 8) | get_tarval_sub_bits(tv, i+2);
v = (v << 8) | get_tarval_sub_bits(tv, i+1);
v = (v << 8) | get_tarval_sub_bits(tv, i+0);
- be_emit_irprintf(emit_env.emit, "\t.word\t%u\n", v);
- be_emit_write_line(emit_env.emit);
+ be_emit_irprintf("\t.word\t%u\n", v);
+ be_emit_write_line();
}
}
}
- be_emit_char(emit_env.emit, '\n');
- be_emit_write_line(emit_env.emit);
+ be_emit_char('\n');
+ be_emit_write_line();
}
- del_set(emit_env.sym_or_tv);
+ del_set(sym_or_tv);
+}
+
+void arm_init_emitter(void)
+{
+ FIRM_DBG_REGISTER(dbg, "firm.be.arm.emit");
}
projects / libfirm / blobdiff