assert(reg && "no in register found");
- /* in case of a joker register: just return a valid register */
- if (arch_register_type_is(reg, joker)) {
+ if(reg == &ia32_gp_regs[REG_GP_NOREG])
+ panic("trying to emit noreg");
+
+ /* in case of unknown register: just return a valid register */
+ if (reg == &ia32_gp_regs[REG_GP_UKNWN]) {
const arch_register_req_t *req;
/* ask for the requirements */
case 64:
return 'l';
case 80:
+ case 96:
return 't';
}
} else {
- assert(mode_is_int(mode) || mode_is_reference(mode) || mode_is_character(mode));
+ assert(mode_is_int(mode) || mode_is_reference(mode));
switch(get_mode_size_bits(mode)) {
case 64:
return 'q';
static
int produces_result(const ir_node *node) {
- return !(is_ia32_St(node) ||
- is_ia32_CondJmp(node) ||
- is_ia32_xCondJmp(node) ||
- is_ia32_CmpSet(node) ||
- is_ia32_xCmpSet(node) ||
- is_ia32_SwitchJmp(node));
+ return
+ !is_ia32_CmpSet(node) &&
+ !is_ia32_CmpSet8Bit(node) &&
+ !is_ia32_CmpJmp(node) &&
+ !is_ia32_CmpJmp8Bit(node) &&
+ !is_ia32_St(node) &&
+ !is_ia32_SwitchJmp(node) &&
+ !is_ia32_TestJmp(node) &&
+ !is_ia32_TestJmp8Bit(node) &&
+ !is_ia32_xCmpSet(node) &&
+ !is_ia32_xCmpJmp(node) &&
+ !is_ia32_CmpCMov(node) &&
+ !is_ia32_CmpCMov8Bit(node) &&
+ !is_ia32_TestCMov(node) &&
+ !is_ia32_TestCMov8Bit(node) &&
+ !is_ia32_CmpSet(node) &&
+ !is_ia32_TestSet(node);
}
static
be_emit_string(env, reg_name);
}
-void ia32_emit_x87_name(ia32_emit_env_t *env, const ir_node *node, int pos)
+static void ia32_emit_register(ia32_emit_env_t *env, const arch_register_t *reg)
{
- const ia32_x87_attr_t *attr = get_ia32_x87_attr_const(node);
+ const char *reg_name = arch_register_get_name(reg);
- assert(pos < 3);
be_emit_char(env, '%');
- be_emit_string(env, attr->x87[pos]->name);
+ be_emit_string(env, reg_name);
}
-void ia32_emit_immediate(ia32_emit_env_t *env, const ir_node *node)
+void ia32_emit_x87_name(ia32_emit_env_t *env, const ir_node *node, int pos)
{
- tarval *tv;
- ir_entity *ent;
- ident *id;
-
- be_emit_char(env, '$');
-
- switch(get_ia32_immop_type(node)) {
- case ia32_ImmConst:
- tv = get_ia32_Immop_tarval(node);
- be_emit_tarval(env, tv);
- return;
- case ia32_ImmSymConst:
- ent = get_ia32_Immop_symconst(node);
- mark_entity_visited(ent);
- id = get_entity_ld_ident(ent);
- be_emit_ident(env, id);
- return;
- case ia32_ImmNone:
- break;
- }
+ const ia32_x87_attr_t *attr = get_ia32_x87_attr_const(node);
- assert(0);
- be_emit_string(env, "BAD");
- return;
+ assert(pos < 3);
+ be_emit_char(env, '%');
+ be_emit_string(env, attr->x87[pos]->name);
}
static
static
void emit_ia32_Immediate(ia32_emit_env_t *env, const ir_node *node);
+void ia32_emit_8bit_source_register(ia32_emit_env_t *env, const ir_node *node,
+ int pos)
+{
+ const arch_register_t *reg;
+ const char *reg_name;
+ ir_node *in;
+
+ in = get_irn_n(node, pos);
+ if(is_ia32_Immediate(in)) {
+ emit_ia32_Immediate(env, in);
+ return;
+ }
+
+ reg = get_in_reg(env, node, pos);
+ reg_name = arch_register_get_name(reg);
+
+ be_emit_char(env, '%');
+ be_emit_char(env, reg_name[1]);
+ be_emit_char(env, 'l');
+}
+
+void ia32_emit_16bit_source_register(ia32_emit_env_t *env, const ir_node *node,
+ int pos)
+{
+ const arch_register_t *reg;
+ const char *reg_name;
+ ir_node *in;
+
+ in = get_irn_n(node, pos);
+ if(is_ia32_Immediate(in)) {
+ emit_ia32_Immediate(env, in);
+ return;
+ }
+
+ reg = get_in_reg(env, node, pos);
+ reg_name = arch_register_get_name(reg);
+
+ be_emit_char(env, '%');
+ be_emit_string(env, ®_name[1]);
+ be_emit_char(env, 'x');
+}
+
+void ia32_emit_source_register_or_immediate(ia32_emit_env_t *env,
+ const ir_node *node, int pos)
+{
+ ir_node *in = get_irn_n(node, pos);
+ if(is_ia32_Immediate(in)) {
+ emit_ia32_Immediate(env, in);
+ } else {
+ ia32_emit_source_register(env, node, pos);
+ }
+}
+
/**
* Emits registers and/or address mode of a binary operation.
*/
void ia32_emit_binop(ia32_emit_env_t *env, const ir_node *node) {
- const ir_node *right_op;
+ const ir_node *right_op = get_irn_n(node, 3);
switch(get_ia32_op_type(node)) {
case ia32_Normal:
- right_op = get_irn_n(node, 3);
if(is_ia32_Immediate(right_op)) {
emit_ia32_Immediate(env, right_op);
be_emit_cstring(env, ", ");
ia32_emit_source_register(env, node, 2);
break;
- } else if (is_ia32_ImmConst(node) || is_ia32_ImmSymConst(node)) {
- ia32_emit_immediate(env, node);
- be_emit_cstring(env, ", ");
- ia32_emit_source_register(env, node, 2);
} else {
const arch_register_t *in1 = get_in_reg(env, node, 2);
const arch_register_t *in2 = get_in_reg(env, node, 3);
const arch_register_t *in;
const char *in_name;
- in = out ? (REGS_ARE_EQUAL(out, in2) ? in1 : in2) : in2;
+ in = out ? ((out == in2) ? in1 : in2) : in2;
out = out ? out : in1;
in_name = arch_register_get_name(in);
- if (is_ia32_emit_cl(node)) {
- assert(REGS_ARE_EQUAL(&ia32_gp_regs[REG_ECX], in) && "shift operation needs ecx");
- in_name = "cl";
- }
-
be_emit_char(env, '%');
be_emit_string(env, in_name);
be_emit_cstring(env, ", %");
}
break;
case ia32_AddrModeS:
- ia32_emit_am(env, node);
- be_emit_cstring(env, ", ");
- if (is_ia32_ImmConst(node) || is_ia32_ImmSymConst(node)) {
- assert(!produces_result(node) && "Source AM with Const must not produce result");
- ia32_emit_immediate(env, node);
- } else if (produces_result(node)) {
- ia32_emit_dest_register(env, node, 0);
- } else {
- ia32_emit_source_register(env, node, 2);
- }
- break;
- case ia32_AddrModeD:
- right_op = get_irn_n(node, 3);
if(is_ia32_Immediate(right_op)) {
+ assert(!produces_result(node) &&
+ "Source AM with Const must not produce result");
+
emit_ia32_Immediate(env, right_op);
be_emit_cstring(env, ", ");
ia32_emit_am(env, node);
- break;
- } else if (is_ia32_ImmConst(node) || is_ia32_ImmSymConst(node)) {
- ia32_emit_immediate(env, node);
- be_emit_cstring(env, ", ");
+ } else if (produces_result(node)) {
ia32_emit_am(env, node);
- } else {
- const arch_register_t *in1 = get_in_reg(env, node,
- get_irn_arity(node) == 5 ? 3 : 2);
- ir_mode *mode = get_ia32_ls_mode(node);
- const char *in_name;
-
- in_name = ia32_get_reg_name_for_mode(env, mode, in1);
-
- if (is_ia32_emit_cl(node)) {
- assert(REGS_ARE_EQUAL(&ia32_gp_regs[REG_ECX], in1) && "shift operation needs ecx");
- in_name = "cl";
- }
-
- be_emit_char(env, '%');
- be_emit_string(env, in_name);
be_emit_cstring(env, ", ");
+ ia32_emit_dest_register(env, node, 0);
+ } else {
ia32_emit_am(env, node);
+ be_emit_cstring(env, ", ");
+ ia32_emit_source_register(env, node, 2);
}
break;
+ case ia32_AddrModeD:
+ panic("DestMode can't be output by %%binop anymore");
+ break;
default:
assert(0 && "unsupported op type");
}
void ia32_emit_x87_binop(ia32_emit_env_t *env, const ir_node *node) {
switch(get_ia32_op_type(node)) {
case ia32_Normal:
- if (is_ia32_ImmConst(node) || is_ia32_ImmSymConst(node)) {
- // should not happen...
- assert(0);
- } else {
+ {
const ia32_x87_attr_t *x87_attr = get_ia32_x87_attr_const(node);
const arch_register_t *in1 = x87_attr->x87[0];
const arch_register_t *in2 = x87_attr->x87[1];
const arch_register_t *out = x87_attr->x87[2];
const arch_register_t *in;
- in = out ? (REGS_ARE_EQUAL(out, in2) ? in1 : in2) : in2;
+ in = out ? ((out == in2) ? in1 : in2) : in2;
out = out ? out : in1;
be_emit_char(env, '%');
op = get_irn_n(node, pos);
if (is_ia32_Immediate(op)) {
emit_ia32_Immediate(env, op);
- } else if (is_ia32_ImmConst(node) || is_ia32_ImmSymConst(node)) {
- ia32_emit_immediate(env, node);
} else {
ia32_emit_source_register(env, node, pos);
}
if (ent != NULL) {
ident *id;
- mark_entity_visited(ent);
+ set_entity_backend_marked(ent, 1);
id = get_entity_ld_ident(ent);
if (is_ia32_am_sc_sign(node))
be_emit_char(env, '-');
}
be_emit_char(env, ')');
}
+
+ /* special case if nothing is set */
+ if(ent == NULL && offs == 0 && !has_base && !has_index) {
+ be_emit_char(env, '0');
+ }
}
/*************************************************
{ "ge", pn_Cmp_Ge }, /* >= */
{ "ne", pn_Cmp_Lg }, /* != */
{ NULL, pn_Cmp_Leg}, /* Floating point: ordered */
- { NULL, pn_Cmp_Uo }, /* Floating point: unordered */
- { "e", pn_Cmp_Ue }, /* Floating point: unordered or == */
- { "b", pn_Cmp_Ul }, /* Floating point: unordered or < */
- { "be", pn_Cmp_Ule }, /* Floating point: unordered or <= */
- { "a", pn_Cmp_Ug }, /* Floating point: unordered or > */
- { "ae", pn_Cmp_Uge }, /* Floating point: unordered or >= */
- { "ne", pn_Cmp_Ne }, /* Floating point: unordered or != */
- { NULL, pn_Cmp_True }, /* always true */
};
/*
static
const char *get_cmp_suffix(pn_Cmp cmp_code)
{
- assert( (cmp2condition_s[cmp_code & 15].num) == (cmp_code & 15));
+ assert( (cmp2condition_s[cmp_code & 7].num) == (cmp_code & 7));
assert( (cmp2condition_u[cmp_code & 7].num) == (cmp_code & 7));
if((cmp_code & ia32_pn_Cmp_Unsigned)) {
return cmp2condition_u[cmp_code & 7].name;
} else {
- return cmp2condition_s[cmp_code & 15].name;
+ return cmp2condition_s[cmp_code & 7].name;
}
}
return get_irn_link(irn);
}
+/**
+ * Emits a block label for the given block.
+ */
static
void ia32_emit_block_name(ia32_emit_env_t *env, const ir_node *block)
{
- be_emit_cstring(env, BLOCK_PREFIX);
- be_emit_irprintf(env->emit, "%d", get_irn_node_nr(block));
+ if (has_Block_label(block)) {
+ be_emit_string(env, be_gas_label_prefix());
+ be_emit_irprintf(env->emit, "%u", (unsigned)get_Block_label(block));
+ } else {
+ be_emit_cstring(env, BLOCK_PREFIX);
+ be_emit_irprintf(env->emit, "%d", get_irn_node_nr(block));
+ }
}
/**
- * Returns the target label for a control flow node.
+ * Emits the target label for a control flow node.
*/
static
void ia32_emit_cfop_target(ia32_emit_env_t * env, const ir_node *node) {
pnc = get_negated_pnc(pnc, mode);
}
- /* in case of unordered compare, check for parity */
- if (pnc & pn_Cmp_Uo) {
- be_emit_cstring(env, "\tjp ");
+ if (mode_is_float(mode)) {
+ /* Some floating point comparisons require a test of the parity flag, which
+ * indicates that the result is unordered */
+ switch (pnc & ~ia32_pn_Cmp_Unsigned) {
+ case pn_Cmp_Uo:
+ be_emit_cstring(env, "\tjp ");
+ ia32_emit_cfop_target(env, proj_true);
+ be_emit_finish_line_gas(env, proj_true);
+ break;
+
+ case pn_Cmp_Leg:
+ be_emit_cstring(env, "\tjnp ");
+ ia32_emit_cfop_target(env, proj_true);
+ be_emit_finish_line_gas(env, proj_true);
+ break;
+
+ case pn_Cmp_Eq:
+ case pn_Cmp_Lt:
+ case pn_Cmp_Le:
+ be_emit_cstring(env, "\tjp ");
+ ia32_emit_cfop_target(env, proj_false);
+ be_emit_finish_line_gas(env, proj_false);
+ goto float_jcc;
+
+ case pn_Cmp_Ug:
+ case pn_Cmp_Uge:
+ case pn_Cmp_Ne:
+ be_emit_cstring(env, "\tjp ");
+ ia32_emit_cfop_target(env, proj_true);
+ be_emit_finish_line_gas(env, proj_true);
+ goto float_jcc;
+
+ default:
+ float_jcc:
+ /* The bits set by floating point compares correspond to unsigned
+ * comparisons */
+ pnc |= ia32_pn_Cmp_Unsigned;
+ goto emit_jcc;
+ }
+ } else {
+emit_jcc:
+ be_emit_cstring(env, "\tj");
+ ia32_emit_cmp_suffix(env, pnc);
+ be_emit_char(env, ' ');
ia32_emit_cfop_target(env, proj_true);
be_emit_finish_line_gas(env, proj_true);
}
- be_emit_cstring(env, "\tj");
- ia32_emit_cmp_suffix(env, pnc);
- be_emit_char(env, ' ');
- ia32_emit_cfop_target(env, proj_true);
- be_emit_finish_line_gas(env, proj_true);
-
/* the second Proj might be a fallthrough */
if (get_cfop_target_block(proj_false) != next_block) {
be_emit_cstring(env, "\tjmp ");
*/
static
void CondJmp_emitter(ia32_emit_env_t *env, const ir_node *node) {
- be_emit_cstring(env, "\tcmp ");
+ be_emit_cstring(env, "\tcmp");
+ ia32_emit_mode_suffix(env, node);
+ be_emit_char(env, ' ');
ia32_emit_binop(env, node);
be_emit_finish_line_gas(env, node);
* Emits code for conditional jump with two variables.
*/
static
-void emit_ia32_CondJmp(ia32_emit_env_t *env, const ir_node *node) {
+void emit_ia32_CmpJmp(ia32_emit_env_t *env, const ir_node *node) {
CondJmp_emitter(env, node);
}
*/
static
void TestJmp_emitter(ia32_emit_env_t *env, const ir_node *node) {
- if(is_ia32_ImmSymConst(node) || is_ia32_ImmConst(node)) {
- be_emit_cstring(env, "\ttest ");
- ia32_emit_immediate(env, node);
- be_emit_cstring(env, ", ");
- ia32_emit_source_register(env, node, 0);
- be_emit_finish_line_gas(env, node);
- } else {
- be_emit_cstring(env, "\ttest ");
- ia32_emit_source_register(env, node, 1);
- be_emit_cstring(env, ", ");
- ia32_emit_source_register(env, node, 0);
- be_emit_finish_line_gas(env, node);
- }
+ be_emit_cstring(env, "\ttest");
+ ia32_emit_mode_suffix(env, node);
+ be_emit_char(env, ' ');
+
+ ia32_emit_binop(env, node);
+ be_emit_finish_line_gas(env, node);
+
finish_CondJmp(env, node, mode_Iu, get_ia32_pncode(node));
}
TestJmp_emitter(env, node);
}
-static
-void emit_ia32_CJmp(ia32_emit_env_t *env, const ir_node *node) {
- be_emit_cstring(env, "/* omitted redundant test */");
- be_emit_finish_line_gas(env, node);
-
- finish_CondJmp(env, node, mode_Is, get_ia32_pncode(node));
-}
-
-static
-void emit_ia32_CJmpAM(ia32_emit_env_t *env, const ir_node *node) {
- be_emit_cstring(env, "/* omitted redundant test/cmp */");
- be_emit_finish_line_gas(env, node);
-
- finish_CondJmp(env, node, mode_Is, get_ia32_pncode(node));
-}
-
/**
* Emits code for conditional SSE floating point jump with two variables.
*/
static
-void emit_ia32_xCondJmp(ia32_emit_env_t *env, const ir_node *node) {
+void emit_ia32_xCmpJmp(ia32_emit_env_t *env, const ir_node *node) {
be_emit_cstring(env, "\tucomi");
ia32_emit_xmm_mode_suffix(env, node);
be_emit_char(env, ' ');
* Emits code for conditional x87 floating point jump with two variables.
*/
static
-void emit_ia32_x87CondJmp(ia32_emit_env_t *env, const ir_node *node) {
+void emit_ia32_x87CmpJmp(ia32_emit_env_t *env, const ir_node *node) {
const ia32_x87_attr_t *x87_attr = get_ia32_x87_attr_const(node);
const char *reg = x87_attr->x87[1]->name;
long pnc = get_ia32_pncode(node);
finish_CondJmp(env, node, mode_E, pnc);
}
-static
-void emit_register_or_immediate(ia32_emit_env_t *env, const ir_node *node,
- int pos)
-{
- ir_node *op = get_irn_n(node, pos);
- if(is_ia32_Immediate(op)) {
- emit_ia32_Immediate(env, op);
- } else {
- ia32_emit_source_register(env, node, pos);
- }
-}
-
-static
-int is_ia32_Immediate_0(const ir_node *node)
-{
- const ia32_immediate_attr_t *attr = get_ia32_immediate_attr_const(node);
- tarval *tv = attr->offset;
-
- if(tv == NULL || attr->symconst != NULL)
- return 0;
-
- return classify_tarval(tv) == CNST_NULL;
-}
-
static
void CMov_emitter(ia32_emit_env_t *env, const ir_node *node)
{
- long pnc = get_ia32_pncode(node);
const arch_register_t *in1, *in2, *out;
+ long pnc = get_ia32_pncode(node);
out = arch_get_irn_register(env->arch_env, node);
- in1 = arch_get_irn_register(env->arch_env, get_irn_n(node, 2));
- in2 = arch_get_irn_register(env->arch_env, get_irn_n(node, 3));
/* we have to emit the cmp first, because the destination register */
/* could be one of the compare registers */
- if (is_ia32_CmpCMov(node)) {
- long pncr = pnc & ~ia32_pn_Cmp_Unsigned;
- ir_node *cmp_right = get_irn_n(node, 1);
-
- if( (pncr == pn_Cmp_Eq || pncr == pn_Cmp_Lg)
- && is_ia32_Immediate(cmp_right)
- && is_ia32_Immediate_0(cmp_right)) {
- be_emit_cstring(env, "\ttest ");
- ia32_emit_source_register(env, node, 0);
- be_emit_cstring(env, ", ");
- ia32_emit_source_register(env, node, 0);
- } else {
- be_emit_cstring(env, "\tcmp ");
- emit_register_or_immediate(env, node, 1);
- be_emit_cstring(env, ", ");
- ia32_emit_source_register(env, node, 0);
- }
- } else if (is_ia32_xCmpCMov(node)) {
+ if (is_ia32_xCmpCMov(node)) {
be_emit_cstring(env, "\tucomis");
ia32_emit_mode_suffix_mode(env, get_irn_mode(node));
be_emit_char(env, ' ');
ia32_emit_source_register(env, node, 1);
be_emit_cstring(env, ", ");
ia32_emit_source_register(env, node, 0);
+
+ in1 = arch_get_irn_register(env->arch_env, get_irn_n(node, 2));
+ in2 = arch_get_irn_register(env->arch_env, get_irn_n(node, 3));
} else {
- assert(0 && "unsupported CMov");
+ if (is_ia32_CmpCMov(node) || is_ia32_CmpCMov8Bit(node)) {
+ be_emit_cstring(env, "\tcmp ");
+ } else {
+ assert(is_ia32_TestCMov(node) || is_ia32_TestCMov8Bit(node));
+ be_emit_cstring(env, "\ttest ");
+ }
+ ia32_emit_binop(env, node);
+
+ in1 = arch_get_irn_register(env->arch_env, get_irn_n(node, 5));
+ in2 = arch_get_irn_register(env->arch_env, get_irn_n(node, 6));
}
be_emit_finish_line_gas(env, node);
- if (REGS_ARE_EQUAL(out, in2)) {
+ if (out == in2) {
/* best case: default in == out -> do nothing */
- } else if (REGS_ARE_EQUAL(out, in1)) {
- ir_node *n = (ir_node*) node;
- /* true in == out -> need complement compare and exchange true and default in */
- ir_node *t = get_irn_n(n, 2);
- set_irn_n(n, 2, get_irn_n(n, 3));
- set_irn_n(n, 3, t);
-
+ } else if(in2 == &ia32_gp_regs[REG_GP_UKNWN]) {
+ /* also nothign to do for unknown regs */
+ } else if (out == in1) {
+ const arch_register_t *t;
+ /* true in == out -> need complement compare and exchange true and
+ * default in */
+ t = in1;
+ in1 = in2;
+ in2 = t;
pnc = get_negated_pnc(pnc, get_irn_mode(node));
} else {
- /* out is different from in: need copy default -> out */
+ /* out is different from both ins: need copy default -> out */
be_emit_cstring(env, "\tmovl ");
- ia32_emit_source_register(env, node, n_ia32_CmpCMov_val_false);
+ ia32_emit_register(env, in2);
be_emit_cstring(env, ", ");
- ia32_emit_dest_register(env, node, 0);
+ ia32_emit_register(env, out);
be_emit_finish_line_gas(env, node);
}
be_emit_cstring(env, "\tcmov");
- ia32_emit_cmp_suffix(env, pnc);
+ ia32_emit_cmp_suffix(env, pnc );
be_emit_cstring(env, "l ");
- ia32_emit_source_register(env, node, n_ia32_CmpCMov_val_true);
+ ia32_emit_register(env, in1);
be_emit_cstring(env, ", ");
- ia32_emit_dest_register(env, node, 0);
+ ia32_emit_register(env, out);
+
be_emit_finish_line_gas(env, node);
}
CMov_emitter(env, node);
}
+static
+void emit_ia32_TestCMov(ia32_emit_env_t *env, const ir_node *node)
+{
+ CMov_emitter(env, node);
+}
+
static
void emit_ia32_xCmpCMov(ia32_emit_env_t *env, const ir_node *node)
{
out = arch_get_irn_register(env->arch_env, node);
reg8bit = ia32_get_mapped_reg_name(env->isa->regs_8bit, out);
- if (is_ia32_CmpSet(node)) {
- long pncr = pnc & ~ia32_pn_Cmp_Unsigned;
- ir_node *cmp_right = get_irn_n(node, n_ia32_CmpSet_cmp_right);
-
- if( (pncr == pn_Cmp_Eq || pncr == pn_Cmp_Lg)
- && is_ia32_Immediate(cmp_right)
- && is_ia32_Immediate_0(cmp_right)) {
- be_emit_cstring(env, "\ttest ");
- ia32_emit_source_register(env, node, n_ia32_CmpSet_cmp_left);
- be_emit_cstring(env, ", ");
- ia32_emit_source_register(env, node, n_ia32_CmpSet_cmp_left);
- } else {
- be_emit_cstring(env, "\tcmp ");
- ia32_emit_binop(env, node);
- }
- } else if (is_ia32_xCmpSet(node)) {
+ if(is_ia32_xCmpSet(node)) {
be_emit_cstring(env, "\tucomis");
ia32_emit_mode_suffix_mode(env, get_irn_mode(get_irn_n(node, 2)));
be_emit_char(env, ' ');
ia32_emit_binop(env, node);
} else {
- assert(0 && "unsupported Set");
+ if (is_ia32_CmpSet(node) || is_ia32_CmpSet8Bit(node)) {
+ be_emit_cstring(env, "\tcmp");
+ } else {
+ assert(is_ia32_TestSet(node) || is_ia32_TestSet8Bit(node));
+ be_emit_cstring(env, "\ttest");
+ }
+ ia32_emit_mode_suffix(env, node);
+ be_emit_char(env, ' ');
+ ia32_emit_binop(env, node);
}
be_emit_finish_line_gas(env, node);
- /* use mov to clear target because it doesn't affect the eflags */
- be_emit_cstring(env, "\tmovl $0, %");
- be_emit_string(env, arch_register_get_name(out));
- be_emit_finish_line_gas(env, node);
-
be_emit_cstring(env, "\tset");
ia32_emit_cmp_suffix(env, pnc);
be_emit_cstring(env, " %");
Set_emitter(env, node);
}
+static
+void emit_ia32_TestSet(ia32_emit_env_t *env, const ir_node *node) {
+ Set_emitter(env, node);
+}
+
static
void emit_ia32_xCmpSet(ia32_emit_env_t *env, const ir_node *node) {
Set_emitter(env, node);
{
const ia32_immediate_attr_t *attr = get_ia32_immediate_attr_const(node);
- assert(attr->symconst != NULL || attr->offset != NULL);
+ be_emit_char(env, '$');
if(attr->symconst != NULL) {
ident *id = get_entity_ld_ident(attr->symconst);
be_emit_char(env, '-');
be_emit_ident(env, id);
}
- if(attr->offset != NULL) {
+ if(attr->symconst == NULL || attr->offset != 0) {
if(attr->symconst != NULL)
be_emit_char(env, '+');
- else
- be_emit_char(env, '$');
- be_emit_tarval(env, attr->offset);
+ be_emit_irprintf(env->emit, "0x%X", attr->offset);
}
}
*/
static
void emit_ia32_CopyB(ia32_emit_env_t *env, const ir_node *node) {
- tarval *tv = get_ia32_Immop_tarval(node);
- int rem = get_tarval_long(tv);
+ int rem = get_ia32_pncode(node);
emit_CopyB_prolog(env, rem);
*/
static
void emit_ia32_CopyB_i(ia32_emit_env_t *env, const ir_node *node) {
- tarval *tv = get_ia32_Immop_tarval(node);
- int size = get_tarval_long(tv);
+ int size = get_ia32_pncode(node);
emit_CopyB_prolog(env, size & 0x3);
in_reg = get_in_reg(env, node, 2);
out_reg = get_out_reg(env, node, 0);
- if (REGS_ARE_EQUAL(in_reg, &ia32_gp_regs[REG_EAX]) &&
- REGS_ARE_EQUAL(out_reg, in_reg) &&
+ if (in_reg == &ia32_gp_regs[REG_EAX] &&
+ out_reg == &ia32_gp_regs[REG_EAX] &&
signed_mode &&
smaller_bits == 16)
{
be_emit_cstring(env, "\tmov");
be_emit_string(env, sign_suffix);
ia32_emit_mode_suffix_mode(env, smaller_mode);
- be_emit_cstring(env, "l %");
+ be_emit_cstring(env, "l ");
ia32_emit_am(env, node);
be_emit_cstring(env, ", ");
ia32_emit_dest_register(env, node, 0);
be_emit_cstring(env, "\tcall ");
if (ent) {
- mark_entity_visited(ent);
+ set_entity_backend_marked(ent, 1);
be_emit_string(env, get_entity_ld_name(ent));
} else {
be_emit_char(env, '*');
static
void Copy_emitter(ia32_emit_env_t *env, const ir_node *node, const ir_node *op)
{
- const arch_env_t *aenv = env->arch_env;
+ const arch_env_t *arch_env = env->arch_env;
+ const arch_register_t *in = arch_get_irn_register(arch_env, op);
+ const arch_register_t *out = arch_get_irn_register(arch_env, node);
ir_mode *mode;
- if (REGS_ARE_EQUAL(arch_get_irn_register(aenv, node), arch_get_irn_register(aenv, op)) ||
- arch_register_type_is(arch_get_irn_register(aenv, op), virtual))
+ if(in == out) {
+ return;
+ }
+ if(is_unknown_reg(in))
+ return;
+ /* copies of vf nodes aren't real... */
+ if(arch_register_get_class(in) == &ia32_reg_classes[CLASS_ia32_vfp])
return;
mode = get_irn_mode(node);
if (mode == mode_E) {
be_emit_cstring(env, "\tmovsd ");
- ia32_emit_source_register(env, node, 0);
+ ia32_emit_register(env, in);
be_emit_cstring(env, ", ");
- ia32_emit_dest_register(env, node, 0);
+ ia32_emit_register(env, out);
} else {
be_emit_cstring(env, "\tmovl ");
- ia32_emit_source_register(env, node, 0);
+ ia32_emit_register(env, in);
be_emit_cstring(env, ", ");
- ia32_emit_dest_register(env, node, 0);
+ ia32_emit_register(env, out);
}
be_emit_finish_line_gas(env, node);
}
*/
static
void emit_ia32_Const(ia32_emit_env_t *env, const ir_node *node) {
- ia32_immop_type_t imm_tp = get_ia32_immop_type(node);
+ const ia32_immediate_attr_t *attr = get_ia32_immediate_attr_const(node);
- if (imm_tp == ia32_ImmSymConst) {
- be_emit_cstring(env, "\tmovl ");
- ia32_emit_immediate(env, node);
+ /* a zero? */
+ if(attr->symconst == NULL && attr->offset == 0) {
+ if (env->isa->opt_arch == arch_pentium_4) {
+ /* P4 prefers sub r, r, others xor r, r */
+ be_emit_cstring(env, "\tsubl ");
+ } else {
+ be_emit_cstring(env, "\txorl ");
+ }
+ ia32_emit_dest_register(env, node, 0);
be_emit_cstring(env, ", ");
ia32_emit_dest_register(env, node, 0);
} else {
- tarval *tv = get_ia32_Immop_tarval(node);
- assert(get_irn_mode(node) == mode_Iu);
- /* beware: in some rare cases mode is mode_b which has no tarval_null() */
- if (tarval_is_null(tv)) {
- if (env->isa->opt_arch == arch_pentium_4) {
- /* P4 prefers sub r, r, others xor r, r */
- be_emit_cstring(env, "\tsubl ");
- } else {
- be_emit_cstring(env, "\txorl ");
- }
- ia32_emit_dest_register(env, node, 0);
- be_emit_cstring(env, ", ");
- ia32_emit_dest_register(env, node, 0);
- } else {
- be_emit_cstring(env, "\tmovl ");
- ia32_emit_immediate(env, node);
- be_emit_cstring(env, ", ");
- ia32_emit_dest_register(env, node, 0);
- }
+ be_emit_cstring(env, "\tmovl ");
+ emit_ia32_Immediate(env, node);
+ be_emit_cstring(env, ", ");
+ ia32_emit_dest_register(env, node, 0);
}
+
be_emit_finish_line_gas(env, node);
}
/* other ia32 emitter functions */
IA32_EMIT(Asm);
- IA32_EMIT(CondJmp);
+ IA32_EMIT(CmpJmp);
+ IA32_EMIT2(CmpJmp8Bit, CmpJmp);
IA32_EMIT(TestJmp);
- IA32_EMIT(CJmp);
- IA32_EMIT(CJmpAM);
+ IA32_EMIT2(TestJmp8Bit, TestJmp);
IA32_EMIT(CmpCMov);
+ IA32_EMIT2(CmpCMov8Bit, CmpCMov);
+ IA32_EMIT(TestCMov);
+ IA32_EMIT2(TestCMov8Bit, TestCMov);
IA32_EMIT(CmpSet);
+ IA32_EMIT2(CmpSet8Bit, CmpSet);
+ IA32_EMIT(TestSet);
+ IA32_EMIT2(TestSet8Bit, TestSet);
IA32_EMIT(SwitchJmp);
IA32_EMIT(CopyB);
IA32_EMIT(CopyB_i);
IA32_EMIT(xCmp);
IA32_EMIT(xCmpSet);
IA32_EMIT(xCmpCMov);
- IA32_EMIT(xCondJmp);
- IA32_EMIT2(fcomJmp, x87CondJmp);
- IA32_EMIT2(fcompJmp, x87CondJmp);
- IA32_EMIT2(fcomppJmp, x87CondJmp);
- IA32_EMIT2(fcomrJmp, x87CondJmp);
- IA32_EMIT2(fcomrpJmp, x87CondJmp);
- IA32_EMIT2(fcomrppJmp, x87CondJmp);
+ IA32_EMIT(xCmpJmp);
+ IA32_EMIT2(fcomJmp, x87CmpJmp);
+ IA32_EMIT2(fcompJmp, x87CmpJmp);
+ IA32_EMIT2(fcomppJmp, x87CmpJmp);
+ IA32_EMIT2(fcomrJmp, x87CmpJmp);
+ IA32_EMIT2(fcomrpJmp, x87CmpJmp);
+ IA32_EMIT2(fcomrppJmp, x87CmpJmp);
/* benode emitter */
BE_EMIT(Call);
(*func) (env, node);
} else {
emit_Nothing(env, node);
- ir_fprintf(stderr, "Warning: No emit handler for node %+F (%+G)\n", node, node);
+ ir_fprintf(stderr, "Error: No emit handler for node %+F (%+G, graph %+F)\n", node, node, current_ir_graph);
+ abort();
}
}
int i, arity;
ir_exec_freq *exec_freq = env->cg->birg->exec_freq;
- need_label = 1;
n_cfgpreds = get_Block_n_cfgpreds(block);
- if (n_cfgpreds == 0) {
- need_label = 0;
- } else 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 fallthoughs */
- if(pred_block == prev &&
- !(is_Proj(pred) && is_ia32_SwitchJmp(get_Proj_pred(pred)))) {
- need_label = 0;
- } else {
- need_label = 1;
- }
- } else {
- need_label = 1;
- }
+ need_label = (n_cfgpreds != 0);
if (should_align_block(env, block, prev)) {
assert(need_label);
projects / libfirm / blobdiff