+/**
+ * This file implements the IR transformation from firm into
+ * ia32-Firm.
+ *
+ * $Id$
+ */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#include <limits.h>
+
+#include "irargs_t.h"
#include "irnode_t.h"
#include "irgraph_t.h"
#include "irmode_t.h"
+#include "iropt_t.h"
+#include "irop_t.h"
+#include "irprog_t.h"
+#include "iredges_t.h"
#include "irgmod.h"
-#include "iredges.h"
#include "irvrfy.h"
#include "ircons.h"
#include "dbginfo.h"
-#include "iropt_t.h"
#include "debug.h"
#include "../benode_t.h"
+#include "../besched.h"
+
#include "bearch_ia32_t.h"
#include "ia32_nodes_attr.h"
#include "gen_ia32_regalloc_if.h"
+#define SFP_SIGN "0x80000000"
+#define DFP_SIGN "0x8000000000000000"
+#define SFP_ABS "0x7FFFFFFF"
+#define DFP_ABS "0x7FFFFFFFFFFFFFFF"
+
+#define TP_SFP_SIGN "ia32_sfp_sign"
+#define TP_DFP_SIGN "ia32_dfp_sign"
+#define TP_SFP_ABS "ia32_sfp_abs"
+#define TP_DFP_ABS "ia32_dfp_abs"
+
+#define ENT_SFP_SIGN "IA32_SFP_SIGN"
+#define ENT_DFP_SIGN "IA32_DFP_SIGN"
+#define ENT_SFP_ABS "IA32_SFP_ABS"
+#define ENT_DFP_ABS "IA32_DFP_ABS"
+
extern ir_op *get_op_Mulh(void);
+typedef ir_node *construct_binop_func(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *base, ir_node *index, \
+ ir_node *op1, ir_node *op2, ir_node *mem, ir_mode *mode);
+
+typedef ir_node *construct_unop_func(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *base, ir_node *index, \
+ ir_node *op, ir_node *mem, ir_mode *mode);
+typedef enum {
+ ia32_SSIGN, ia32_DSIGN, ia32_SABS, ia32_DABS, ia32_known_const_max
+} ia32_known_const_t;
/****************************************************************************************************
* _ _ __ _ _
*
****************************************************************************************************/
+/**
+ * Gets the Proj with number pn from irn.
+ */
+static ir_node *get_proj_for_pn(const ir_node *irn, long pn) {
+ const ir_edge_t *edge;
+ ir_node *proj;
+ assert(get_irn_mode(irn) == mode_T && "need mode_T");
+ foreach_out_edge(irn, edge) {
+ proj = get_edge_src_irn(edge);
+
+ if (get_Proj_proj(proj) == pn)
+ return proj;
+ }
+
+ return NULL;
+}
+
+/* Generates an entity for a known FP const (used for FP Neg + Abs) */
+static ident *gen_fp_known_const(ir_mode *mode, ia32_known_const_t kct) {
+ static const struct {
+ const char *tp_name;
+ const char *ent_name;
+ const char *cnst_str;
+ } names [ia32_known_const_max] = {
+ { TP_SFP_SIGN, ENT_SFP_SIGN, SFP_SIGN }, /* ia32_SSIGN */
+ { TP_DFP_SIGN, ENT_DFP_SIGN, DFP_SIGN }, /* ia32_DSIGN */
+ { TP_SFP_ABS, ENT_SFP_ABS, SFP_ABS }, /* ia32_SABS */
+ { TP_DFP_ABS, ENT_DFP_ABS, DFP_ABS } /* ia32_DABS */
+ };
+ static struct entity *ent_cache[ia32_known_const_max];
+
+ const char *tp_name, *ent_name, *cnst_str;
+ ir_type *tp;
+ ir_node *cnst;
+ ir_graph *rem;
+ entity *ent;
+ tarval *tv;
+
+ ent_name = names[kct].ent_name;
+ if (! ent_cache[kct]) {
+ tp_name = names[kct].tp_name;
+ cnst_str = names[kct].cnst_str;
+
+ tv = new_tarval_from_str(cnst_str, strlen(cnst_str), mode);
+ tp = new_type_primitive(new_id_from_str(tp_name), mode);
+ ent = new_entity(get_glob_type(), new_id_from_str(ent_name), tp);
+
+ set_entity_ld_ident(ent, get_entity_ident(ent));
+ set_entity_visibility(ent, visibility_local);
+ set_entity_variability(ent, variability_constant);
+ set_entity_allocation(ent, allocation_static);
+
+ /* we create a new entity here: It's initialization must resist on the
+ const code irg */
+ rem = current_ir_graph;
+ current_ir_graph = get_const_code_irg();
+ cnst = new_Const(mode, tv);
+ current_ir_graph = rem;
+
+ set_atomic_ent_value(ent, cnst);
+
+ /* cache the entry */
+ ent_cache[kct] = ent;
+ }
+
+ return get_entity_ident(ent_cache[kct]);
+}
+
+#ifndef NDEBUG
+/**
+ * Prints the old node name on cg obst and returns a pointer to it.
+ */
+const char *ia32_get_old_node_name(ia32_code_gen_t *cg, ir_node *irn) {
+ ia32_isa_t *isa = (ia32_isa_t *)cg->arch_env->isa;
+
+ lc_eoprintf(firm_get_arg_env(), isa->name_obst, "%+F", irn);
+ obstack_1grow(isa->name_obst, 0);
+ isa->name_obst_size += obstack_object_size(isa->name_obst);
+ return obstack_finish(isa->name_obst);
+}
+#endif /* NDEBUG */
/* determine if one operator is an Imm */
static ir_node *get_immediate_op(ir_node *op1, ir_node *op2) {
if (op1)
- return is_ia32_Const(op1) ? op1 : (is_ia32_Const(op2) ? op2 : NULL);
- else return is_ia32_Const(op2) ? op2 : NULL;
+ return is_ia32_Cnst(op1) ? op1 : (is_ia32_Cnst(op2) ? op2 : NULL);
+ else return is_ia32_Cnst(op2) ? op2 : NULL;
}
/* determine if one operator is not an Imm */
static ir_node *get_expr_op(ir_node *op1, ir_node *op2) {
- return !is_ia32_Const(op1) ? op1 : (!is_ia32_Const(op2) ? op2 : NULL);
+ return !is_ia32_Cnst(op1) ? op1 : (!is_ia32_Cnst(op2) ? op2 : NULL);
+}
+
+
+/**
+ * Construct a standard binary operation, set AM and immediate if required.
+ *
+ * @param env The transformation environment
+ * @param op1 The first operand
+ * @param op2 The second operand
+ * @param func The node constructor function
+ * @return The constructed ia32 node.
+ */
+static ir_node *gen_binop(ia32_transform_env_t *env, ir_node *op1, ir_node *op2, construct_binop_func *func) {
+ ir_node *new_op = NULL;
+ ir_mode *mode = env->mode;
+ dbg_info *dbg = env->dbg;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *noreg_gp = ia32_new_NoReg_gp(env->cg);
+ ir_node *noreg_fp = ia32_new_NoReg_fp(env->cg);
+ ir_node *nomem = new_NoMem();
+ ir_node *expr_op, *imm_op;
+ DEBUG_ONLY(firm_dbg_module_t *mod = env->mod;)
+
+ /* Check if immediate optimization is on and */
+ /* if it's an operation with immediate. */
+ if (! env->cg->opt.immops) {
+ expr_op = op1;
+ imm_op = NULL;
+ }
+ else if (is_op_commutative(get_irn_op(env->irn))) {
+ imm_op = get_immediate_op(op1, op2);
+ expr_op = get_expr_op(op1, op2);
+ }
+ else {
+ imm_op = get_immediate_op(NULL, op2);
+ expr_op = get_expr_op(op1, op2);
+ }
+
+ assert((expr_op || imm_op) && "invalid operands");
+
+ if (!expr_op) {
+ /* We have two consts here: not yet supported */
+ imm_op = NULL;
+ }
+
+ if (mode_is_float(mode)) {
+ /* floating point operations */
+ if (imm_op) {
+ DB((mod, LEVEL_1, "FP with immediate ..."));
+ new_op = func(dbg, irg, block, noreg_gp, noreg_gp, expr_op, noreg_fp, nomem, mode_T);
+ set_ia32_Immop_attr(new_op, imm_op);
+ set_ia32_am_support(new_op, ia32_am_None);
+ }
+ else {
+ DB((mod, LEVEL_1, "FP binop ..."));
+ new_op = func(dbg, irg, block, noreg_gp, noreg_gp, op1, op2, nomem, mode_T);
+ set_ia32_am_support(new_op, ia32_am_Source);
+ }
+ }
+ else {
+ /* integer operations */
+ if (imm_op) {
+ /* This is expr + const */
+ DB((mod, LEVEL_1, "INT with immediate ..."));
+ new_op = func(dbg, irg, block, noreg_gp, noreg_gp, expr_op, noreg_gp, nomem, mode_T);
+ set_ia32_Immop_attr(new_op, imm_op);
+
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Dest);
+ }
+ else {
+ DB((mod, LEVEL_1, "INT binop ..."));
+ /* This is a normal operation */
+ new_op = func(dbg, irg, block, noreg_gp, noreg_gp, op1, op2, nomem, mode_T);
+
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Full);
+ }
+ }
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ set_ia32_res_mode(new_op, mode);
+
+ if (is_op_commutative(get_irn_op(env->irn))) {
+ set_ia32_commutative(new_op);
+ }
+
+ return new_rd_Proj(dbg, irg, block, new_op, mode, 0);
+}
+
+
+
+/**
+ * Construct a shift/rotate binary operation, sets AM and immediate if required.
+ *
+ * @param env The transformation environment
+ * @param op1 The first operand
+ * @param op2 The second operand
+ * @param func The node constructor function
+ * @return The constructed ia32 node.
+ */
+static ir_node *gen_shift_binop(ia32_transform_env_t *env, ir_node *op1, ir_node *op2, construct_binop_func *func) {
+ ir_node *new_op = NULL;
+ ir_mode *mode = env->mode;
+ dbg_info *dbg = env->dbg;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_NoMem();
+ ir_node *expr_op, *imm_op;
+ tarval *tv;
+ DEBUG_ONLY(firm_dbg_module_t *mod = env->mod;)
+
+ assert(! mode_is_float(mode) && "Shift/Rotate with float not supported");
+
+ /* Check if immediate optimization is on and */
+ /* if it's an operation with immediate. */
+ imm_op = env->cg->opt.immops ? get_immediate_op(NULL, op2) : NULL;
+ expr_op = get_expr_op(op1, op2);
+
+ assert((expr_op || imm_op) && "invalid operands");
+
+ if (!expr_op) {
+ /* We have two consts here: not yet supported */
+ imm_op = NULL;
+ }
+
+ /* Limit imm_op within range imm8 */
+ if (imm_op) {
+ tv = get_ia32_Immop_tarval(imm_op);
+
+ if (tv) {
+ tv = tarval_mod(tv, new_tarval_from_long(32, mode_Iu));
+ }
+ else {
+ imm_op = NULL;
+ }
+ }
+
+ /* integer operations */
+ if (imm_op) {
+ /* This is shift/rot with const */
+ DB((mod, LEVEL_1, "Shift/Rot with immediate ..."));
+
+ new_op = func(dbg, irg, block, noreg, noreg, expr_op, noreg, nomem, mode_T);
+ set_ia32_Immop_attr(new_op, imm_op);
+ }
+ else {
+ /* This is a normal shift/rot */
+ DB((mod, LEVEL_1, "Shift/Rot binop ..."));
+ new_op = func(dbg, irg, block, noreg, noreg, op1, op2, nomem, mode_T);
+ }
+
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Dest);
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ set_ia32_res_mode(new_op, mode);
+ set_ia32_emit_cl(new_op);
+
+ return new_rd_Proj(dbg, irg, block, new_op, mode, 0);
+}
+
+
+/**
+ * Construct a standard unary operation, set AM and immediate if required.
+ *
+ * @param env The transformation environment
+ * @param op The operand
+ * @param func The node constructor function
+ * @return The constructed ia32 node.
+ */
+static ir_node *gen_unop(ia32_transform_env_t *env, ir_node *op, construct_unop_func *func) {
+ ir_node *new_op = NULL;
+ ir_mode *mode = env->mode;
+ dbg_info *dbg = env->dbg;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_NoMem();
+ DEBUG_ONLY(firm_dbg_module_t *mod = env->mod;)
+
+ new_op = func(dbg, irg, block, noreg, noreg, op, nomem, mode_T);
+
+ if (mode_is_float(mode)) {
+ DB((mod, LEVEL_1, "FP unop ..."));
+ /* floating point operations don't support implicit store */
+ set_ia32_am_support(new_op, ia32_am_None);
+ }
+ else {
+ DB((mod, LEVEL_1, "INT unop ..."));
+ set_ia32_am_support(new_op, ia32_am_Dest);
+ }
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ set_ia32_res_mode(new_op, mode);
+
+ return new_rd_Proj(dbg, irg, block, new_op, mode, 0);
}
/**
* Creates an ia32 Add with immediate.
*
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Add_i node
+ * @param env The transformation environment
+ * @param expr_op The expression operator
+ * @param const_op The constant
+ * @return the created ia32 Add node
*/
static ir_node *gen_imm_Add(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- ir_node *new_op;
- tarval *tv = get_ia32_Immop_tarval(const_op);
- int normal_add = 0;
+ ir_node *new_op = NULL;
+ tarval *tv = get_ia32_Immop_tarval(const_op);
+ dbg_info *dbg = env->dbg;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_NoMem();
+ int normal_add = 1;
tarval_classification_t class_tv, class_negtv;
- firm_dbg_module_t *mod = env->mod;
- dbg_info *dbg = env->dbg;
- ir_mode *mode = env->mode;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
-
- /* const_op: tarval or SymConst? */
- if (tv) {
+ DEBUG_ONLY(firm_dbg_module_t *mod = env->mod;)
+
+ /* try to optimize to inc/dec */
+ if (env->cg->opt.incdec && tv) {
/* optimize tarvals */
class_tv = classify_tarval(tv);
class_negtv = classify_tarval(tarval_neg(tv));
if (class_tv == TV_CLASSIFY_ONE) { /* + 1 == INC */
DB((env->mod, LEVEL_2, "Add(1) to Inc ... "));
- new_op = new_rd_ia32_Inc(dbg, irg, block, expr_op, mode);
+ new_op = new_rd_ia32_Inc(dbg, irg, block, noreg, noreg, expr_op, nomem, mode_T);
+ normal_add = 0;
}
else if (class_tv == TV_CLASSIFY_ALL_ONE || class_negtv == TV_CLASSIFY_ONE) { /* + (-1) == DEC */
DB((mod, LEVEL_2, "Add(-1) to Dec ... "));
- new_op = new_rd_ia32_Dec(dbg, irg, block, expr_op, mode);
+ new_op = new_rd_ia32_Dec(dbg, irg, block, noreg, noreg, expr_op, nomem, mode_T);
+ normal_add = 0;
}
- else
- normal_add = 1;
}
- else
- normal_add = 1;
- if (normal_add)
- new_op = new_rd_ia32_Lea_i(dbg, irg, block, expr_op, mode);
+ if (normal_add) {
+ new_op = new_rd_ia32_Add(dbg, irg, block, noreg, noreg, expr_op, noreg, nomem, mode_T);
+ set_ia32_Immop_attr(new_op, const_op);
+ }
return new_op;
}
* @return the created ia32 Add node
*/
static ir_node *gen_Add(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- ir_node *shli_op;
- ir_node *expr_op;
- ir_node *new_op;
- int normal_add = 0;
- dbg_info *dbg = env->dbg;
- ir_mode *mode = env->mode;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
-
- if (mode_is_float(mode)) {
- return new_rd_ia32_fAdd(dbg, irg, block, op1, op2, mode);
- }
-
- /* try to optimize with LEA */
-
- shli_op = is_ia32_Shl_i(op1) ? op1 : (is_ia32_Shl_i(op2) ? op2 : NULL);
- expr_op = shli_op == op1 ? op2 : (shli_op == op2 ? op1 : NULL);
-
- if (shli_op) {
- tarval *tv = get_ia32_Immop_tarval(shli_op);
- tarval *offs = NULL;
- if (tv) {
- switch (get_tarval_long(tv)) {
- case 1:
- case 2:
- case 3:
- // If the other operand of the LEA is an LEA_i (that means LEA ofs(%regop1)),
- // we can skip it and transform the whole sequence into LEA ofs(%regop1, %regop2, shl_val),
- if (is_ia32_Lea_i(expr_op)) {
- offs = get_ia32_Immop_tarval(expr_op);
- expr_op = get_irn_n(expr_op, 0);
- }
+ ir_node *new_op = NULL;
+ dbg_info *dbg = env->dbg;
+ ir_mode *mode = env->mode;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_NoMem();
+ ir_node *expr_op, *imm_op;
+
+ /* Check if immediate optimization is on and */
+ /* if it's an operation with immediate. */
+ imm_op = env->cg->opt.immops ? get_immediate_op(op1, op2) : NULL;
+ expr_op = get_expr_op(op1, op2);
- new_op = new_rd_ia32_Lea(dbg, irg, block, expr_op, get_irn_n(shli_op, 0), mode);
- set_ia32_Immop_tarval(new_op, tv);
- set_ia32_am_offs(new_op, offs);
+ assert((expr_op || imm_op) && "invalid operands");
- break;
- default:
- normal_add = 1;
- break;
- }
- }
+ if (mode_is_float(mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ return gen_binop(env, op1, op2, new_rd_ia32_fAdd);
else
- normal_add = 1;
- }
- else
- normal_add = 1;
-
- if (normal_add) {
- new_op = new_rd_ia32_Lea(dbg, irg, block, op1, op2, mode);
- set_ia32_Immop_tarval(new_op, get_tarval_null(mode_Iu));
- set_ia32_am_offs(new_op, NULL);
+ return gen_binop(env, op1, op2, new_rd_ia32_vfadd);
}
+ else {
+ /* integer ADD */
+ if (!expr_op) {
+ /* No expr_op means, that we have two const - one symconst and */
+ /* one tarval or another symconst - because this case is not */
+ /* covered by constant folding */
+ /* We need to check for: */
+ /* 1) symconst + const -> becomes a LEA */
+ /* 2) symconst + symconst -> becomes a const + LEA as the elf */
+ /* linker doesn't support two symconsts */
+
+ if (get_ia32_op_type(op1) == ia32_SymConst && get_ia32_op_type(op2) == ia32_SymConst) {
+ /* this is the 2nd case */
+ new_op = new_rd_ia32_Lea(dbg, irg, block, op1, noreg, mode);
+ set_ia32_am_sc(new_op, get_ia32_id_cnst(op2));
+ set_ia32_am_flavour(new_op, ia32_am_OB);
+ }
+ else {
+ /* this is the 1st case */
+ new_op = new_rd_ia32_Lea(dbg, irg, block, noreg, noreg, mode);
- return new_op;
-}
+ if (get_ia32_op_type(op1) == ia32_SymConst) {
+ set_ia32_am_sc(new_op, get_ia32_id_cnst(op1));
+ add_ia32_am_offs(new_op, get_ia32_cnst(op2));
+ }
+ else {
+ add_ia32_am_offs(new_op, get_ia32_cnst(op1));
+ set_ia32_am_sc(new_op, get_ia32_id_cnst(op2));
+ }
+ set_ia32_am_flavour(new_op, ia32_am_O);
+ }
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Source);
+ set_ia32_op_type(new_op, ia32_AddrModeS);
+ /* Lea doesn't need a Proj */
+ return new_op;
+ }
+ else if (imm_op) {
+ /* This is expr + const */
+ new_op = gen_imm_Add(env, expr_op, imm_op);
-/**
- * Generates an ia32 Mul node.
- *
- * @param env The transformation environment
- * @param op1 The first faktor
- * @param op2 The second factor
- * @param mul_flav flavour_Mul/Mulh
- * @return The ready-to-go Mul node
- */
-ir_node *generate_Mul(ia32_transform_env_t *env, ir_node *op1, ir_node *op2, op_flavour_t mul_flav, int is_imm_op) {
- ir_node *in_keep[1], *res;
- long pn_good, pn_bad;
- dbg_info *dbg = env->dbg;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
- ir_mode *mode = env->mode;
- ir_node *mul;
-
- /* create the mul */
- if (is_imm_op) {
- mul = new_rd_ia32_Mul_i(dbg, irg, block, op1, mode_T);
- set_ia32_Immop_attr(mul, op2);
- }
- else {
- mul = new_rd_ia32_Mul(dbg, irg, block, op1, op2, mode_T);
- }
- set_ia32_flavour(mul, mul_flav);
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Dest);
+ }
+ else {
+ /* This is a normal add */
+ new_op = new_rd_ia32_Add(dbg, irg, block, noreg, noreg, op1, op2, nomem, mode_T);
- /* create the mul infrastructure */
- if (mul_flav == flavour_Mul) {
- pn_good = pn_EAX;
- pn_bad = pn_EDX;
- }
- else { /* Mulh */
- pn_good = pn_EDX;
- pn_bad = pn_EAX;
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Full);
+ }
}
- res = new_rd_Proj(dbg, irg, block, mul, mode, pn_good);
- in_keep[0] = new_rd_Proj(dbg, irg, block, mul, mode, pn_bad);
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
- be_new_Keep(&ia32_reg_classes[CLASS_ia32_general_purpose], irg, block, 1, in_keep);
+ set_ia32_res_mode(new_op, mode);
- return res;
+ return new_rd_Proj(dbg, irg, block, new_op, mode, 0);
}
-/**
- * Creates an ia32 Mul with immediate.
- *
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Mul_i node
- */
-static ir_node *gen_imm_Mul(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- /* Mul with immediate only possible with int, so we don't need to check for float */
- return generate_Mul(env, expr_op, const_op, flavour_Mul, 1);
-}
-
/**
* Creates an ia32 Mul.
*
* @param mode node mode
* @return the created ia32 Mul node
*/
-ir_node *gen_Mul(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
+static ir_node *gen_Mul(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
+ ir_node *new_op;
+
if (mode_is_float(env->mode)) {
- return new_rd_ia32_fMul(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ new_op = gen_binop(env, op1, op2, new_rd_ia32_fMul);
+ else
+ new_op = gen_binop(env, op1, op2, new_rd_ia32_vfmul);
}
else {
- return generate_Mul(env, op1, op2, flavour_Mul, 0);
+ new_op = gen_binop(env, op1, op2, new_rd_ia32_Mul);
}
-}
+ return new_op;
+}
-/**
- * Creates an ia32 Mulh with immediate.
- * Note: Mul produces a 64Bit result and Mulh returns the upper 32 bit of
- * this result while Mul returns the lower 32 bit.
- *
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Mulh_i node
- */
-static ir_node *gen_imm_Mulh(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- return generate_Mul(env, expr_op, const_op, flavour_Mulh, 1);
-}
/**
* Creates an ia32 Mulh.
* Note: Mul produces a 64Bit result and Mulh returns the upper 32 bit of
* this result while Mul returns the lower 32 bit.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
* @return the created ia32 Mulh node
*/
static ir_node *gen_Mulh(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return generate_Mul(env, op1, op2, flavour_Mulh, 0);
-}
+ ir_node *proj_EAX, *proj_EDX, *mulh;
+ ir_node *in[1];
+ assert(!mode_is_float(env->mode) && "Mulh with float not supported");
+ proj_EAX = gen_binop(env, op1, op2, new_rd_ia32_Mulh);
+ mulh = get_Proj_pred(proj_EAX);
+ proj_EDX = new_rd_Proj(env->dbg, env->irg, env->block, mulh, env->mode, pn_EDX);
+ /* to be on the save side */
+ set_Proj_proj(proj_EAX, pn_EAX);
-/**
- * Creates an ia32 And with immediate.
- *
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 And_i node
- */
-static ir_node *gen_imm_And(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- return new_rd_ia32_And_i(env->dbg, env->irg, env->block, expr_op, env->mode);
+ if (is_ia32_ImmConst(mulh) || is_ia32_ImmSymConst(mulh)) {
+ /* Mulh with const cannot have AM */
+ set_ia32_am_support(mulh, ia32_am_None);
+ }
+ else {
+ /* Mulh cannot have AM for destination */
+ set_ia32_am_support(mulh, ia32_am_Source);
+ }
+
+ in[0] = proj_EAX;
+
+ /* keep EAX */
+ be_new_Keep(&ia32_reg_classes[CLASS_ia32_gp], env->irg, env->block, 1, in);
+
+ return proj_EDX;
}
+
+
/**
* Creates an ia32 And.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 And node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 And node
*/
static ir_node *gen_And(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_And(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ assert (! mode_is_float(env->mode));
+ return gen_binop(env, op1, op2, new_rd_ia32_And);
}
-/**
- * Creates an ia32 Or with immediate.
- *
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Or_i node
- */
-static ir_node *gen_imm_Or(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- return new_rd_ia32_Or_i(env->dbg, env->irg, env->block, expr_op, env->mode);
-}
-
/**
* Creates an ia32 Or.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 Or node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 Or node
*/
static ir_node *gen_Or(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_Or(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ assert (! mode_is_float(env->mode));
+ return gen_binop(env, op1, op2, new_rd_ia32_Or);
}
-/**
- * Creates an ia32 Eor with immediate.
- *
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Eor_i node
- */
-static ir_node *gen_imm_Eor(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- return new_rd_ia32_Eor_i(env->dbg, env->irg, env->block, expr_op, env->mode);
-}
-
/**
* Creates an ia32 Eor.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 Eor node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 Eor node
*/
static ir_node *gen_Eor(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_Eor(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ assert(! mode_is_float(env->mode));
+ return gen_binop(env, op1, op2, new_rd_ia32_Eor);
}
/**
* Creates an ia32 Max.
*
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Max node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return the created ia32 Max node
*/
static ir_node *gen_Max(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_Max(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ ir_node *new_op;
+
+ if (mode_is_float(env->mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ new_op = gen_binop(env, op1, op2, new_rd_ia32_fMax);
+ else {
+ assert(0);
+ }
+ }
+ else {
+ new_op = new_rd_ia32_Max(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ set_ia32_am_support(new_op, ia32_am_None);
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+ }
+
+ return new_op;
}
/**
* Creates an ia32 Min.
*
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Min node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return the created ia32 Min node
*/
static ir_node *gen_Min(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_Min(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ ir_node *new_op;
+
+ if (mode_is_float(env->mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ new_op = gen_binop(env, op1, op2, new_rd_ia32_fMin);
+ else {
+ assert(0);
+ }
+ }
+ else {
+ new_op = new_rd_ia32_Min(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ set_ia32_am_support(new_op, ia32_am_None);
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+ }
+
+ return new_op;
}
/**
* Creates an ia32 Sub with immediate.
*
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Sub_i node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 Sub node
*/
static ir_node *gen_imm_Sub(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- ir_node *new_op;
- tarval *tv = get_ia32_Immop_tarval(const_op);
- int normal_sub = 0;
+ ir_node *new_op = NULL;
+ tarval *tv = get_ia32_Immop_tarval(const_op);
+ dbg_info *dbg = env->dbg;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_NoMem();
+ int normal_sub = 1;
tarval_classification_t class_tv, class_negtv;
- firm_dbg_module_t *mod = env->mod;
- dbg_info *dbg = env->dbg;
- ir_mode *mode = env->mode;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
-
- /* const_op: tarval or SymConst? */
- if (tv) {
+ DEBUG_ONLY(firm_dbg_module_t *mod = env->mod;)
+
+ /* try to optimize to inc/dec */
+ if (env->cg->opt.incdec && tv) {
/* optimize tarvals */
class_tv = classify_tarval(tv);
class_negtv = classify_tarval(tarval_neg(tv));
if (class_tv == TV_CLASSIFY_ONE) { /* - 1 == DEC */
DB((mod, LEVEL_2, "Sub(1) to Dec ... "));
- new_op = new_rd_ia32_Dec(dbg, irg, block, expr_op, mode);
+ new_op = new_rd_ia32_Dec(dbg, irg, block, noreg, noreg, expr_op, nomem, mode_T);
+ normal_sub = 0;
}
else if (class_negtv == TV_CLASSIFY_ONE) { /* - (-1) == Sub */
DB((mod, LEVEL_2, "Sub(-1) to Inc ... "));
- new_op = new_rd_ia32_Inc(dbg, irg, block, expr_op, mode);
+ new_op = new_rd_ia32_Inc(dbg, irg, block, noreg, noreg, expr_op, nomem, mode_T);
+ normal_sub = 0;
}
- else
- normal_sub = 1;
}
- else
- normal_sub = 1;
- if (normal_sub)
- new_op = new_rd_ia32_Sub_i(dbg, irg, block, expr_op, mode);
+ if (normal_sub) {
+ new_op = new_rd_ia32_Sub(dbg, irg, block, noreg, noreg, expr_op, noreg, nomem, mode_T);
+ set_ia32_Immop_attr(new_op, const_op);
+ }
return new_op;
}
/**
* Creates an ia32 Sub.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 Sub node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 Sub node
*/
static ir_node *gen_Sub(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- if (mode_is_float(env->mode)) {
- return new_rd_ia32_fSub(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ ir_node *new_op = NULL;
+ dbg_info *dbg = env->dbg;
+ ir_mode *mode = env->mode;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_NoMem();
+ ir_node *expr_op, *imm_op;
+
+ /* Check if immediate optimization is on and */
+ /* if it's an operation with immediate. */
+ imm_op = env->cg->opt.immops ? get_immediate_op(NULL, op2) : NULL;
+ expr_op = get_expr_op(op1, op2);
+
+ assert((expr_op || imm_op) && "invalid operands");
+
+ if (mode_is_float(mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ return gen_binop(env, op1, op2, new_rd_ia32_fSub);
+ else
+ return gen_binop(env, op1, op2, new_rd_ia32_vfsub);
+ }
+ else {
+ /* integer SUB */
+ if (!expr_op) {
+ /* No expr_op means, that we have two const - one symconst and */
+ /* one tarval or another symconst - because this case is not */
+ /* covered by constant folding */
+ /* We need to check for: */
+ /* 1) symconst + const -> becomes a LEA */
+ /* 2) symconst + symconst -> becomes a const + LEA as the elf */
+ /* linker doesn't support two symconsts */
+
+ if (get_ia32_op_type(op1) == ia32_SymConst && get_ia32_op_type(op2) == ia32_SymConst) {
+ /* this is the 2nd case */
+ new_op = new_rd_ia32_Lea(dbg, irg, block, op1, noreg, mode);
+ set_ia32_am_sc(new_op, get_ia32_id_cnst(op2));
+ set_ia32_am_sc_sign(new_op);
+ set_ia32_am_flavour(new_op, ia32_am_OB);
+ }
+ else {
+ /* this is the 1st case */
+ new_op = new_rd_ia32_Lea(dbg, irg, block, noreg, noreg, mode);
+
+ if (get_ia32_op_type(op1) == ia32_SymConst) {
+ set_ia32_am_sc(new_op, get_ia32_id_cnst(op1));
+ sub_ia32_am_offs(new_op, get_ia32_cnst(op2));
+ }
+ else {
+ add_ia32_am_offs(new_op, get_ia32_cnst(op1));
+ set_ia32_am_sc(new_op, get_ia32_id_cnst(op2));
+ set_ia32_am_sc_sign(new_op);
+ }
+ set_ia32_am_flavour(new_op, ia32_am_O);
+ }
+
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Source);
+ set_ia32_op_type(new_op, ia32_AddrModeS);
+
+ /* Lea doesn't need a Proj */
+ return new_op;
+ }
+ else if (imm_op) {
+ /* This is expr - const */
+ new_op = gen_imm_Sub(env, expr_op, imm_op);
+
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Dest);
+ }
+ else {
+ /* This is a normal sub */
+ new_op = new_rd_ia32_Sub(dbg, irg, block, noreg, noreg, op1, op2, nomem, mode_T);
+
+ /* set AM support */
+ set_ia32_am_support(new_op, ia32_am_Full);
+ }
}
- return new_rd_ia32_Sub(env->dbg, env->irg, env->block, op1, op2, env->mode);
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ set_ia32_res_mode(new_op, mode);
+
+ return new_rd_Proj(dbg, irg, block, new_op, mode, 0);
}
* @param dm_flav flavour_Div/Mod/DivMod
* @return The created ia32 DivMod node
*/
-static ir_node *generate_DivMod(ia32_transform_env_t *env, ir_node *dividend, ir_node *divisor, op_flavour_t dm_flav) {
+static ir_node *generate_DivMod(ia32_transform_env_t *env, ir_node *dividend, ir_node *divisor, ia32_op_flavour_t dm_flav) {
ir_node *res, *proj;
ir_node *edx_node, *cltd;
ir_node *in_keep[1];
ir_node *block = env->block;
ir_mode *mode = env->mode;
ir_node *irn = env->irn;
- ir_node *mem = get_DivMod_mem(irn);
+ ir_node *mem;
+
+ switch (dm_flav) {
+ case flavour_Div:
+ mem = get_Div_mem(irn);
+ mode = get_irn_mode(get_proj_for_pn(irn, pn_Div_res));
+ break;
+ case flavour_Mod:
+ mem = get_Mod_mem(irn);
+ mode = get_irn_mode(get_proj_for_pn(irn, pn_Mod_res));
+ break;
+ case flavour_DivMod:
+ mem = get_DivMod_mem(irn);
+ mode = get_irn_mode(get_proj_for_pn(irn, pn_DivMod_res_div));
+ break;
+ default:
+ assert(0);
+ }
if (mode_is_signed(mode)) {
/* in signed mode, we need to sign extend the dividend */
- cltd = new_rd_ia32_Cltd(dbg, irg, block, dividend, mode_T);
+ cltd = new_rd_ia32_Cdq(dbg, irg, block, dividend, mode_T);
dividend = new_rd_Proj(dbg, irg, block, cltd, mode_Is, pn_EAX);
edx_node = new_rd_Proj(dbg, irg, block, cltd, mode_Is, pn_EDX);
}
else {
edx_node = new_rd_ia32_Const(dbg, irg, block, mode_Iu);
- set_ia32_Const_type(edx_node, asmop_Const);
+ set_ia32_Const_type(edx_node, ia32_Const);
set_ia32_Immop_tarval(edx_node, get_tarval_null(mode_Iu));
}
- res = new_rd_ia32_DivMod(dbg, irg, block, dividend, divisor, edx_node, mem, mode);
+ res = new_rd_ia32_DivMod(dbg, irg, block, dividend, divisor, edx_node, mem, mode_T);
set_ia32_flavour(res, dm_flav);
set_ia32_n_res(res, 2);
in_keep[0] = new_rd_Proj(dbg, irg, block, res, mode_Is, pn_DivMod_res_div);
}
- be_new_Keep(&ia32_reg_classes[CLASS_ia32_general_purpose], irg, block, 1, in_keep);
+ be_new_Keep(&ia32_reg_classes[CLASS_ia32_gp], irg, block, 1, in_keep);
}
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+
+ set_ia32_res_mode(res, mode_Is);
+
return res;
}
/**
* Creates an ia32 floating Div.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 fDiv node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 fDiv node
*/
static ir_node *gen_Quot(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_fDiv(env->dbg, env->irg, env->block, op1, op2, env->mode);
-}
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *new_op;
+ ir_node *nomem = new_rd_NoMem(env->irg);
+ if (USE_SSE2(env->cg)) {
+ if (is_ia32_fConst(op2)) {
+ new_op = new_rd_ia32_fDiv(env->dbg, env->irg, env->block, noreg, noreg, op1, noreg, nomem, mode_T);
+ set_ia32_am_support(new_op, ia32_am_None);
+ set_ia32_Immop_attr(new_op, op2);
+ }
+ else {
+ new_op = new_rd_ia32_fDiv(env->dbg, env->irg, env->block, noreg, noreg, op1, op2, nomem, mode_T);
+ set_ia32_am_support(new_op, ia32_am_Source);
+ }
+ }
+ else {
+ new_op = new_rd_ia32_vfdiv(env->dbg, env->irg, env->block, noreg, noreg, op1, op2, nomem, mode_T);
+ set_ia32_am_support(new_op, ia32_am_Source);
+ }
+ set_ia32_res_mode(new_op, get_irn_mode(get_proj_for_pn(env->irn, pn_Quot_res)));
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
-/**
- * Creates an ia32 Shl with immediate.
- *
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Shl_i node
- */
-static ir_node *gen_imm_Shl(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- return new_rd_ia32_Shl_i(env->dbg, env->irg, env->block, expr_op, env->mode);
+ return new_op;
}
+
+
/**
* Creates an ia32 Shl.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 Shl node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 Shl node
*/
static ir_node *gen_Shl(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_Shl(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ return gen_shift_binop(env, op1, op2, new_rd_ia32_Shl);
}
-/**
- * Creates an ia32 Shr with immediate.
- *
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Shr_i node
- */
-static ir_node *gen_imm_Shr(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- return new_rd_ia32_Shr_i(env->dbg, env->irg, env->block, expr_op, env->mode);
-}
-
/**
* Creates an ia32 Shr.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 Shr node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 Shr node
*/
static ir_node *gen_Shr(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_Shr(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ return gen_shift_binop(env, op1, op2, new_rd_ia32_Shr);
}
-/**
- * Creates an ia32 Shrs with immediate.
- *
- * @param dbg firm dbg
- * @param block the block the new node should belong to
- * @param expr_op operator
- * @param mode node mode
- * @return the created ia23 Shrs_i node
- */
-static ir_node *gen_imm_Shrs(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- return new_rd_ia32_Shrs_i(env->dbg, env->irg, env->block, expr_op, env->mode);
-}
-
/**
* Creates an ia32 Shrs.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 Shrs node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 Shrs node
*/
static ir_node *gen_Shrs(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_Shrs(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ return gen_shift_binop(env, op1, op2, new_rd_ia32_Shrs);
}
/**
* Creates an ia32 RotL.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 RotL node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 RotL node
*/
static ir_node *gen_RotL(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_RotL(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ return gen_shift_binop(env, op1, op2, new_rd_ia32_RotL);
}
* NOTE: There is no RotR with immediate because this would always be a RotL
* "imm-mode_size_bits" which can be pre-calculated.
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 RotR node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 RotR node
*/
static ir_node *gen_RotR(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
- return new_rd_ia32_RotR(env->dbg, env->irg, env->block, op1, op2, env->mode);
+ return gen_shift_binop(env, op1, op2, new_rd_ia32_RotR);
}
-/**
- * Transforms a Rot with immediate into an ia32 RotL with immediate
- * as the Firm Rot is a RotL (see NOTE on RotR with immediate above).
- *
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 RotL node
- */
-static ir_node *gen_imm_Rot(ia32_transform_env_t *env, ir_node *expr_op, ir_node *const_op) {
- return new_rd_ia32_RotL_i(env->dbg, env->irg, env->block, expr_op, env->mode);
-}
-
/**
* Creates an ia32 RotR or RotL (depending on the found pattern).
*
- * @param dbg firm node dbg
- * @param block the block the new node should belong to
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @return the created ia32 RotL or RotR node
+ * @param env The transformation environment
+ * @param op1 The first operator
+ * @param op2 The second operator
+ * @return The created ia32 RotL or RotR node
*/
static ir_node *gen_Rot(ia32_transform_env_t *env, ir_node *op1, ir_node *op2) {
ir_node *rotate = NULL;
operand "-e+mode_size_bits" (it's an already modified "mode_size_bits-e",
that means we can create a RotR instead of an Add and a RotL */
- if (is_ia32_Add_i(op2)) {
- ir_node *minus = get_irn_n(op2, 0); // is there an op_Minus?
+ if (is_Proj(op2)) {
+ ir_node *pred = get_Proj_pred(op2);
+
+ if (is_ia32_Add(pred)) {
+ ir_node *pred_pred = get_irn_n(pred, 2);
+ tarval *tv = get_ia32_Immop_tarval(pred);
+ long bits = get_mode_size_bits(env->mode);
- if (is_ia32_Minus(minus)) {
- tarval *tv = get_ia32_Immop_tarval(op2);
- long bits = get_mode_size_bits(env->mode);
+ if (is_Proj(pred_pred)) {
+ pred_pred = get_Proj_pred(pred_pred);
+ }
- if (tarval_is_long(tv) && get_tarval_long(tv) == bits) {
+ if (is_ia32_Minus(pred_pred) &&
+ tarval_is_long(tv) &&
+ get_tarval_long(tv) == bits)
+ {
DB((env->mod, LEVEL_1, "RotL into RotR ... "));
- rotate = gen_RotR(env, op1, get_irn_n(minus, 0));
+ rotate = gen_RotR(env, op1, get_irn_n(pred_pred, 2));
}
+
}
}
- if (!rotate)
+ if (!rotate) {
rotate = gen_RotL(env, op1, op2);
+ }
return rotate;
}
/**
- * Transforms commutative operations (op_Add, op_And, op_Or, op_Eor)
- * and non-commutative operations with com == 0 (op_Sub, op_Shl, op_Shr, op_Shrs, op_Rot)
+ * Transforms a Minus node.
*
- * @param mod the debug module
- * @param block the block node belongs to
- * @param node the node to transform
- * @param op1 first operator
- * @param op2 second operator
- * @param mode node mode
- * @param com flag if op is commutative
- * @return the created assembler node
+ * @param env The transformation environment
+ * @param op The operator
+ * @return The created ia32 Minus node
*/
-static ir_node *gen_arith_Op(ia32_transform_env_t *env, ir_node *op1, ir_node *op2, int com) {
- firm_dbg_module_t *mod = env->mod;
- ir_node *node = env->irn;
- ir_node *imm_op = NULL;
- ir_node *expr_op = NULL;
- ir_node *asm_node = NULL;
- opcode opc = get_irn_opcode(node);
- ir_op *op = get_irn_op(node);
-
-#undef GENOP
-#undef GENOPI
-#undef GENOPI_SETATTR
-#define GENOP(a) case iro_##a: asm_node = gen_##a(env, op1, op2); break
-#define GENOPI(a) case iro_##a: asm_node = gen_imm_##a(env, expr_op, imm_op); break
-#define GENOPI_SETATTR(a) case iro_##a: asm_node = gen_imm_##a(env, expr_op, imm_op); set_ia32_Immop_attr(asm_node, imm_op); break
-
- if (com)
- imm_op = get_immediate_op(op1, op2);
- else
- imm_op = get_immediate_op(NULL, op2);
+static ir_node *gen_Minus(ia32_transform_env_t *env, ir_node *op) {
+ ident *name;
+ ir_node *new_op;
+ ir_node *noreg_gp = ia32_new_NoReg_gp(env->cg);
+ ir_node *noreg_fp = ia32_new_NoReg_fp(env->cg);
+ ir_node *nomem = new_rd_NoMem(env->irg);
+ int size;
- expr_op = get_expr_op(op1, op2);
+ if (mode_is_float(env->mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg)) {
+ new_op = new_rd_ia32_fEor(env->dbg, env->irg, env->block, noreg_gp, noreg_gp, op, noreg_fp, nomem, mode_T);
- /* TODO: Op(Const, Const) support */
- if (is_ia32_Const(op1) && is_ia32_Const(op2)) {
- DB((mod, LEVEL_2, "%+F(Const, Const) -> binop ... ", get_irn_opname(node)));
- imm_op = NULL;
- }
+ size = get_mode_size_bits(env->mode);
+ name = gen_fp_known_const(env->mode, size == 32 ? ia32_SSIGN : ia32_DSIGN);
- /* There are arithmetic operations which can't take an immediate */
- switch(opc) {
- case iro_Div:
- case iro_Mod:
- case iro_DivMod:
- DB((mod, LEVEL_2, "Div/Mod/DivMod imm -> binop ... "));
- imm_op = NULL;
- break;
- default:
- if (op == get_op_Min() || op == get_op_Max()) {
- DB((mod, LEVEL_2, "MIN/MAX imm -> binop ... "));
- imm_op = NULL;
- }
- break;
- }
-
- DB((mod, LEVEL_1, "(%+F -- %+F) ... ", op1, op2));
+ set_ia32_sc(new_op, name);
- if (!mode_is_float(env->mode) && imm_op) {
- DB((mod, LEVEL_1, "immop ... "));
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
- switch(opc) {
- GENOPI_SETATTR(Add);
- GENOPI(Mul);
- GENOPI_SETATTR(And);
- GENOPI_SETATTR(Or);
- GENOPI_SETATTR(Eor);
+ set_ia32_res_mode(new_op, env->mode);
+ set_ia32_immop_type(new_op, ia32_ImmSymConst);
- GENOPI_SETATTR(Sub);
- GENOPI_SETATTR(Shl);
- GENOPI_SETATTR(Shr);
- GENOPI_SETATTR(Shrs);
- GENOPI_SETATTR(Rot);
- default:
- if (op == get_op_Mulh()) {
- asm_node = gen_imm_Mulh(env, expr_op, imm_op);
- }
- else {
- assert("binop_i: THIS SHOULD NOT HAPPEN");
- }
+ new_op = new_rd_Proj(env->dbg, env->irg, env->block, new_op, env->mode, 0);
}
- }
- else {
- DB((mod, LEVEL_1, "binop ... "));
-
- switch(opc) {
- GENOP(Add);
- GENOP(Mul);
- GENOP(And);
- GENOP(Or);
- GENOP(Eor);
-
- GENOP(Quot);
-
- GENOP(Div);
- GENOP(Mod);
- GENOP(DivMod);
-
- GENOP(Sub);
- GENOP(Shl);
- GENOP(Shr);
- GENOP(Shrs);
- GENOP(Rot);
- default:
- if (op == get_op_Max()) {
- asm_node = gen_Max(env, op1, op2);
- }
- else if (op == get_op_Min()) {
- asm_node = gen_Min(env, op1, op2);
- }
- else if (op == get_op_Mulh()) {
- asm_node = gen_Mulh(env, op1, op2);
- }
- else {
- assert("binop: THIS SHOULD NOT HAPPEN");
- }
+ else {
+ new_op = new_rd_ia32_vfchs(env->dbg, env->irg, env->block, op, env->mode);
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
}
}
-
- return asm_node;
-}
-#undef GENOP
-#undef GENOPI
-#undef GENOPI_SETATTR
-
-
-
-/**
- * Transforms a Minus node.
- *
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Minus node
- * @param op operator
- * @param mode node mode
- * @return the created ia32 Minus node
- */
-static ir_node *gen_Minus(ia32_transform_env_t *env, ir_node *op) {
- if (is_ia32_Minus(op) || is_ia32_fMinus(op)) {
- DB((env->mod, LEVEL_1, "--(e) to e ..."));
- return get_irn_n(op, 0);
- }
else {
- if (mode_is_float(env->mode)) {
- return new_rd_ia32_fMinus(env->dbg, env->irg, env->block, op, env->mode);
- }
- return new_rd_ia32_Minus(env->dbg, env->irg, env->block, op, env->mode);
+ new_op = gen_unop(env, op, new_rd_ia32_Minus);
}
-}
-
-
-/**
- * Transforms a Conv node.
- *
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Conv node
- * @param op operator
- * @param mode node mode
- * @return the created ia32 Conv node
- */
-static ir_node *gen_Conv(ia32_transform_env_t *env, ir_node *op) {
- return new_rd_ia32_Conv(env->dbg, env->irg, env->block, op, env->mode);
+ return new_op;
}
/**
* Transforms a Not node.
*
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Not node
- * @param op operator
- * @param mode node mode
- * @return the created ia32 Not node
+ * @param env The transformation environment
+ * @param op The operator
+ * @return The created ia32 Not node
*/
static ir_node *gen_Not(ia32_transform_env_t *env, ir_node *op) {
- return new_rd_ia32_Not(env->dbg, env->irg, env->block, op, env->mode);
+ assert (! mode_is_float(env->mode));
+ return gen_unop(env, op, new_rd_ia32_Not);
}
/**
* Transforms an Abs node.
*
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Abs node
- * @param op operator
- * @param mode node mode
- * @return the created ia32 Abs node
+ * @param env The transformation environment
+ * @param op The operator
+ * @return The created ia32 Abs node
*/
static ir_node *gen_Abs(ia32_transform_env_t *env, ir_node *op) {
ir_node *res, *p_eax, *p_edx;
- dbg_info *dbg = env->dbg;
- ir_mode *mode = env->mode;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
+ dbg_info *dbg = env->dbg;
+ ir_mode *mode = env->mode;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *noreg_gp = ia32_new_NoReg_gp(env->cg);
+ ir_node *noreg_fp = ia32_new_NoReg_fp(env->cg);
+ ir_node *nomem = new_NoMem();
+ int size;
+ ident *name;
+
+ if (mode_is_float(mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg)) {
+ res = new_rd_ia32_fAnd(dbg,irg, block, noreg_gp, noreg_gp, op, noreg_fp, nomem, mode_T);
+
+ size = get_mode_size_bits(mode);
+ name = gen_fp_known_const(mode, size == 32 ? ia32_SABS : ia32_DABS);
+
+ set_ia32_sc(res, name);
- res = new_rd_ia32_Cltd(dbg, irg, block, op, mode_T);
- p_eax = new_rd_Proj(dbg, irg, block, res, mode, pn_EAX);
- p_edx = new_rd_Proj(dbg, irg, block, res, mode, pn_EDX);
- res = new_rd_ia32_Eor(dbg, irg, block, p_eax, p_edx, mode);
- res = new_rd_ia32_Sub(dbg, irg, block, res, p_edx, mode);
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+
+ set_ia32_res_mode(res, mode);
+ set_ia32_immop_type(res, ia32_ImmSymConst);
+
+ res = new_rd_Proj(dbg, irg, block, res, mode, 0);
+ }
+ else {
+ res = new_rd_ia32_vfabs(dbg, irg, block, op, mode);
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+ }
+ }
+ else {
+ res = new_rd_ia32_Cdq(dbg, irg, block, op, mode_T);
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+ set_ia32_res_mode(res, mode);
+
+ p_eax = new_rd_Proj(dbg, irg, block, res, mode, pn_EAX);
+ p_edx = new_rd_Proj(dbg, irg, block, res, mode, pn_EDX);
+
+ res = new_rd_ia32_Eor(dbg, irg, block, noreg_gp, noreg_gp, p_eax, p_edx, nomem, mode_T);
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+ set_ia32_res_mode(res, mode);
+
+ res = new_rd_Proj(dbg, irg, block, res, mode, 0);
+
+ res = new_rd_ia32_Sub(dbg, irg, block, noreg_gp, noreg_gp, res, p_edx, nomem, mode_T);
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+ set_ia32_res_mode(res, mode);
+
+ res = new_rd_Proj(dbg, irg, block, res, mode, 0);
+ }
return res;
}
* @return the created ia32 Load node
*/
static ir_node *gen_Load(ia32_transform_env_t *env) {
- ir_node *node = env->irn;
+ ir_node *node = env->irn;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *ptr = get_Load_ptr(node);
+ ir_node *lptr = ptr;
+ ir_mode *mode = get_Load_mode(node);
+ int is_imm = 0;
+ ir_node *new_op;
+ ia32_am_flavour_t am_flav = ia32_B;
- if (mode_is_float(env->mode)) {
- return new_rd_ia32_fLoad(env->dbg, env->irg, env->block, get_Load_ptr(node), get_Load_mem(node), env->mode);
+ /* address might be a constant (symconst or absolute address) */
+ if (is_ia32_Const(ptr)) {
+ lptr = noreg;
+ is_imm = 1;
}
- return new_rd_ia32_Load(env->dbg, env->irg, env->block, get_Load_ptr(node), get_Load_mem(node), env->mode);
-}
-
+ if (mode_is_float(mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ new_op = new_rd_ia32_fLoad(env->dbg, env->irg, env->block, lptr, noreg, get_Load_mem(node), env->mode);
+ else
+ new_op = new_rd_ia32_vfld(env->dbg, env->irg, env->block, lptr, noreg, get_Load_mem(node), env->mode);
+ }
+ else {
+ new_op = new_rd_ia32_Load(env->dbg, env->irg, env->block, lptr, noreg, get_Load_mem(node), env->mode);
+ }
-/**
- * Transforms a Store.
- *
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Store node
- * @param mode node mode
- * @return the created ia32 Store node
- */
-ir_node *gen_Store(ia32_transform_env_t *env) {
- ir_node *node = env->irn;
+ /* base is an constant address */
+ if (is_imm) {
+ if (get_ia32_immop_type(ptr) == ia32_ImmSymConst) {
+ set_ia32_am_sc(new_op, get_ia32_id_cnst(ptr));
+ }
+ else {
+ add_ia32_am_offs(new_op, get_ia32_cnst(ptr));
+ }
- if (mode_is_float(env->mode)) {
- return new_rd_ia32_fStore(env->dbg, env->irg, env->block, get_Store_ptr(node), get_Store_value(node), get_Store_mem(node), env->mode);
+ am_flav = ia32_O;
}
- return new_rd_ia32_Store(env->dbg, env->irg, env->block, get_Store_ptr(node), get_Store_value(node), get_Store_mem(node), env->mode);
+
+ set_ia32_am_support(new_op, ia32_am_Source);
+ set_ia32_op_type(new_op, ia32_AddrModeS);
+ set_ia32_am_flavour(new_op, am_flav);
+ set_ia32_ls_mode(new_op, mode);
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ return new_op;
}
/**
- * Transforms a Call and its arguments corresponding to the calling convention.
+ * Transforms a Store.
*
* @param mod the debug module
* @param block the block the new node should belong to
- * @param node the ir Call node
- * @param dummy mode doesn't matter
- * @return the created ia32 Call node
+ * @param node the ir Store node
+ * @param mode node mode
+ * @return the created ia32 Store node
*/
-static ir_node *gen_Call(ia32_transform_env_t *env) {
- const ia32_register_req_t **in_req;
- ir_node **in;
- ir_node *new_call, *sync;
- int i, j, n_new_call_in, ignore = 0;
- asmop_attr *attr;
- dbg_info *dbg = env->dbg;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
- ir_node *call = env->irn;
- ir_node **stack_param = NULL;
- ir_node **param = get_Call_param_arr(call);
- ir_node *call_Mem = get_Call_mem(call);
- unsigned cc = get_method_calling_convention(get_Call_type(call));
- int n = get_Call_n_params(call);
- int stack_idx = 0;
- int biggest_n = -1;
-
- if (cc & cc_reg_param)
- biggest_n = ia32_get_n_regparam_class(n, param, &ignore, &ignore);
-
- /* remember: biggest_n = x means we can pass (x + 1) parameters in register */
-
- /* do we need to pass arguments on stack? */
- if (biggest_n + 1 < n)
- stack_param = calloc(n - biggest_n - 1, sizeof(ir_node *));
-
- /* we need at least one in, either for the stack params or the call_Mem */
- n_new_call_in = biggest_n + 2;
-
- /* the call has one IN for all stack parameter and one IN for each reg param */
- in = calloc(n_new_call_in, sizeof(ir_node *));
- in_req = calloc(n_new_call_in, sizeof(arch_register_req_t *));
-
- /* loop over all parameters and set the register requirements */
- for (i = 0; i <= biggest_n && (cc & cc_reg_param); i++) {
- in_req[i] = ia32_get_RegParam_req(n, param, i, cc);
- }
- stack_idx = i;
-
- /* create remaining stack parameters */
- if (cc & cc_last_on_top) {
- for (i = stack_idx; i < n; i++) {
- /* pass it on stack */
- if (mode_is_float(get_irn_mode(param[i]))) {
- stack_param[i - stack_idx] = new_rd_ia32_fStackArg(get_irn_dbg_info(param[i]), irg,
- block, call_Mem, param[i], mode_M);
- }
- else {
- stack_param[i - stack_idx] = new_rd_ia32_StackArg(get_irn_dbg_info(param[i]), irg,
- block, call_Mem, param[i], mode_M);
+static ir_node *gen_Store(ia32_transform_env_t *env) {
+ ir_node *node = env->irn;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *val = get_Store_value(node);
+ ir_node *ptr = get_Store_ptr(node);
+ ir_node *sptr = ptr;
+ ir_node *mem = get_Store_mem(node);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *sval = val;
+ int is_imm = 0;
+ ir_node *new_op;
+ ia32_am_flavour_t am_flav = ia32_B;
+ ia32_immop_type_t immop = ia32_ImmNone;
+
+ if (! mode_is_float(mode)) {
+ /* in case of storing a const (but not a symconst) -> make it an attribute */
+ if (is_ia32_Cnst(val)) {
+ switch (get_ia32_op_type(val)) {
+ case ia32_Const:
+ immop = ia32_ImmConst;
+ break;
+ case ia32_SymConst:
+ immop = ia32_ImmSymConst;
+ break;
+ default:
+ assert(0 && "unsupported Const type");
}
+ sval = noreg;
}
}
- else {
- for (i = n - 1, j = 0; i >= stack_idx; i--, j++) {
- /* pass it on stack */
- if (mode_is_float(get_irn_mode(param[i]))) {
- stack_param[j] = new_rd_ia32_fStackArg(get_irn_dbg_info(param[i]), irg,
- block, call_Mem, param[i], mode_M);
- }
- else {
- stack_param[j] = new_rd_ia32_StackArg(get_irn_dbg_info(param[i]), irg,
- block, call_Mem, param[i], mode_M);
- }
- }
+
+ /* address might be a constant (symconst or absolute address) */
+ if (is_ia32_Const(ptr)) {
+ sptr = noreg;
+ is_imm = 0;
}
- if (stack_param) {
- sync = new_r_Sync(irg, block, n - biggest_n - 1, stack_param);
- in[n_new_call_in - 1] = sync;
+ if (mode_is_float(mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ new_op = new_rd_ia32_fStore(env->dbg, env->irg, env->block, sptr, noreg, sval, mem, mode_T);
+ else
+ new_op = new_rd_ia32_vfst(env->dbg, env->irg, env->block, sptr, noreg, sval, mem, mode_T);
+ }
+ else if (get_mode_size_bits(mode) == 8) {
+ new_op = new_rd_ia32_Store8Bit(env->dbg, env->irg, env->block, sptr, noreg, sval, mem, mode_T);
}
else {
- in[n_new_call_in - 1] = call_Mem;
+ new_op = new_rd_ia32_Store(env->dbg, env->irg, env->block, ptr, noreg, sval, mem, mode_T);
+ }
+
+ /* stored const is an attribute (saves a register) */
+ if (! mode_is_float(mode) && is_ia32_Cnst(val)) {
+ set_ia32_Immop_attr(new_op, val);
}
- /* create the new node */
- new_call = new_rd_ia32_Call(dbg, irg, block, n_new_call_in, in);
- set_ia32_Immop_attr(new_call, get_Call_ptr(call));
- set_ia32_n_res(new_call, 1);
+ /* base is an constant address */
+ if (is_imm) {
+ if (get_ia32_immop_type(ptr) == ia32_ImmSymConst) {
+ set_ia32_am_sc(new_op, get_ia32_id_cnst(ptr));
+ }
+ else {
+ add_ia32_am_offs(new_op, get_ia32_cnst(ptr));
+ }
+
+ am_flav = ia32_O;
+ }
- /* set register requirements for in and out */
- attr = get_ia32_attr(new_call);
- attr->in_req = in_req;
- attr->out_req = calloc(2, sizeof(ia32_register_req_t *));
- attr->out_req[0] = &ia32_default_req_ia32_general_purpose_eax;
- attr->out_req[1] = &ia32_default_req_ia32_general_purpose_edx;
- attr->slots = calloc(2, sizeof(arch_register_t *));
+ set_ia32_am_support(new_op, ia32_am_Dest);
+ set_ia32_op_type(new_op, ia32_AddrModeD);
+ set_ia32_am_flavour(new_op, am_flav);
+ set_ia32_ls_mode(new_op, get_irn_mode(val));
+ set_ia32_immop_type(new_op, immop);
- /* stack parameter has no OUT register */
- attr->in_req[n_new_call_in - 1] = &ia32_default_req_none;
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
- return new_call;
+ return new_op;
}
/**
- * Transforms a Cond -> Proj[b] -> Cmp into a CondJmp or CondJmp_i
+ * Transforms a Cond -> Proj[b] -> Cmp into a CondJmp, CondJmp_i or TestJmp
*
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Cond node
- * @param mode mode of the Cond
+ * @param env The transformation environment
* @return The transformed node.
*/
static ir_node *gen_Cond(ia32_transform_env_t *env) {
- dbg_info *dbg = env->dbg;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
- ir_node *node = env->irn;
- ir_node *sel = get_Cond_selector(node);
- ir_mode *sel_mode = get_irn_mode(sel);
- ir_node *res = NULL;
- ir_node *pred = NULL;
- ir_node *cmp_a, *cmp_b, *cnst, *expr;
+ dbg_info *dbg = env->dbg;
+ ir_graph *irg = env->irg;
+ ir_node *block = env->block;
+ ir_node *node = env->irn;
+ ir_node *sel = get_Cond_selector(node);
+ ir_mode *sel_mode = get_irn_mode(sel);
+ ir_node *res = NULL;
+ ir_node *pred = NULL;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *cmp_a, *cmp_b, *cnst, *expr;
if (is_Proj(sel) && sel_mode == mode_b) {
+ ir_node *nomem = new_NoMem();
+
pred = get_Proj_pred(sel);
/* get both compare operators */
cmp_b = get_Cmp_right(pred);
/* check if we can use a CondJmp with immediate */
- cnst = get_immediate_op(cmp_a, cmp_b);
+ cnst = env->cg->opt.immops ? get_immediate_op(cmp_a, cmp_b) : NULL;
expr = get_expr_op(cmp_a, cmp_b);
if (cnst && expr) {
- res = new_rd_ia32_CondJmp_i(dbg, irg, block, expr, mode_T);
+ pn_Cmp pnc = get_Proj_proj(sel);
+
+ if ((pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) && mode_is_int(get_irn_mode(expr))) {
+ if (classify_tarval(get_ia32_Immop_tarval(cnst)) == TV_CLASSIFY_NULL) {
+ /* a Cmp A =/!= 0 */
+ ir_node *op1 = expr;
+ ir_node *op2 = expr;
+ ir_node *and = skip_Proj(expr);
+ const char *cnst = NULL;
+
+ /* check, if expr is an only once used And operation */
+ if (get_irn_n_edges(expr) == 1 && is_ia32_And(and)) {
+ op1 = get_irn_n(and, 2);
+ op2 = get_irn_n(and, 3);
+
+ cnst = (is_ia32_ImmConst(and) || is_ia32_ImmSymConst(and)) ? get_ia32_cnst(and) : NULL;
+ }
+ res = new_rd_ia32_TestJmp(dbg, irg, block, op1, op2, mode_T);
+ set_ia32_pncode(res, get_Proj_proj(sel));
+ set_ia32_res_mode(res, get_irn_mode(op1));
+
+ if (cnst) {
+ copy_ia32_Immop_attr(res, and);
+ }
+
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+ return res;
+ }
+ }
+
+ if (mode_is_float(get_irn_mode(expr))) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ res = new_rd_ia32_fCondJmp(dbg, irg, block, noreg, noreg, expr, noreg, nomem, mode_T);
+ else {
+ assert(0);
+ }
+ }
+ else {
+ res = new_rd_ia32_CondJmp(dbg, irg, block, noreg, noreg, expr, noreg, nomem, mode_T);
+ }
set_ia32_Immop_attr(res, cnst);
+ set_ia32_res_mode(res, get_irn_mode(expr));
}
else {
- res = new_rd_ia32_CondJmp(dbg, irg, block, cmp_a, cmp_b, mode_T);
+ if (mode_is_float(get_irn_mode(cmp_a))) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ res = new_rd_ia32_fCondJmp(dbg, irg, block, noreg, noreg, cmp_a, cmp_b, nomem, mode_T);
+ else {
+ assert(0);
+ }
+ }
+ else {
+ res = new_rd_ia32_CondJmp(dbg, irg, block, noreg, noreg, cmp_a, cmp_b, nomem, mode_T);
+ }
+ set_ia32_res_mode(res, get_irn_mode(cmp_a));
}
set_ia32_pncode(res, get_Proj_proj(sel));
+ set_ia32_am_support(res, ia32_am_Source);
}
else {
- res = new_rd_ia32_SwitchJmp(dbg, irg, block, sel, mode_T);
+ /* determine the smallest switch case value */
+ int switch_min = INT_MAX;
+ const ir_edge_t *edge;
+ char buf[64];
+
+ foreach_out_edge(node, edge) {
+ int pn = get_Proj_proj(get_edge_src_irn(edge));
+ switch_min = pn < switch_min ? pn : switch_min;
+ }
+
+ if (switch_min) {
+ /* if smallest switch case is not 0 we need an additional sub */
+ snprintf(buf, sizeof(buf), "%d", switch_min);
+ res = new_rd_ia32_Lea(dbg, irg, block, sel, noreg, mode_Is);
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+ sub_ia32_am_offs(res, buf);
+ set_ia32_am_flavour(res, ia32_am_OB);
+ set_ia32_am_support(res, ia32_am_Source);
+ set_ia32_op_type(res, ia32_AddrModeS);
+ }
+
+ res = new_rd_ia32_SwitchJmp(dbg, irg, block, switch_min ? res : sel, mode_T);
set_ia32_pncode(res, get_Cond_defaultProj(node));
+ set_ia32_res_mode(res, get_irn_mode(sel));
}
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
return res;
}
/**
- * Transform the argument projs from a start node corresponding to the
- * calling convention.
- * It transforms "Proj Arg x -> ProjT -> Start <- ProjM" into
- * "RegParam x -> ProjT -> Start" OR
- * "StackParam x -> ProjM -> Start"
- * whether parameter is passed in register or on stack.
+ * Transforms a CopyB node.
*
- * @param mod the debug module
- * @param block the block the nodes should belong to
- * @param proj the ProjT node which points to Start
- * @param start the Start node
- * @return Should be always NULL
+ * @param env The transformation environment
+ * @return The transformed node.
*/
-static ir_node *gen_Proj_Start(ia32_transform_env_t *env, ir_node *proj, ir_node *start) {
- const ia32_register_req_t *temp_req;
- const ir_edge_t *edge;
- ir_node *succ, *irn;
- ir_node **projargs;
- ir_mode *mode;
- int n, i;
- unsigned cc;
- ir_node *proj_M = get_irg_initial_mem(current_ir_graph);
- entity *irg_ent = get_irg_entity(current_ir_graph);
- ir_type *tp = get_entity_type(irg_ent);
- int cur_pn = 0;
- ir_graph *irg = env->irg;
- ir_node *block = env->block;
-
- assert(is_Method_type(tp) && "irg type is not a method");
-
- switch(get_Proj_proj(proj)) {
- case pn_Start_T_args:
- /* We cannot use get_method_n_params here as the function might
- be variadic or one argument is not used. */
- n = get_irn_n_edges(proj);
-
- /* Allocate memory for all non variadic parameters in advance to be on the save side */
- env->cg->reg_param_req = calloc(get_method_n_params(tp), sizeof(ia32_register_req_t *));
-
- /* we are done here when there are no parameters */
- if (n < 1)
- break;
+static ir_node *gen_CopyB(ia32_transform_env_t *env) {
+ ir_node *res = NULL;
+ dbg_info *dbg = env->dbg;
+ ir_graph *irg = env->irg;
+ ir_mode *mode = env->mode;
+ ir_node *block = env->block;
+ ir_node *node = env->irn;
+ ir_node *src = get_CopyB_src(node);
+ ir_node *dst = get_CopyB_dst(node);
+ ir_node *mem = get_CopyB_mem(node);
+ int size = get_type_size_bytes(get_CopyB_type(node));
+ int rem;
+
+ /* If we have to copy more than 16 bytes, we use REP MOVSx and */
+ /* then we need the size explicitly in ECX. */
+ if (size >= 16 * 4) {
+ rem = size & 0x3; /* size % 4 */
+ size >>= 2;
+
+ res = new_rd_ia32_Const(dbg, irg, block, mode_Is);
+ set_ia32_op_type(res, ia32_Const);
+ set_ia32_Immop_tarval(res, new_tarval_from_long(size, mode_Is));
+
+ res = new_rd_ia32_CopyB(dbg, irg, block, dst, src, res, mem, mode);
+ set_ia32_Immop_tarval(res, new_tarval_from_long(rem, mode_Is));
+ }
+ else {
+ res = new_rd_ia32_CopyB_i(dbg, irg, block, dst, src, mem, mode);
+ set_ia32_Immop_tarval(res, new_tarval_from_long(size, mode_Is));
+ set_ia32_immop_type(res, ia32_ImmConst);
+ }
- /* temporary remember all proj arg x */
- projargs = calloc(n, sizeof(ir_node *));
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env->cg, env->irn));
+
+ return res;
+}
+
+
+
+/**
+ * Transforms a Mux node into CMov.
+ *
+ * @param env The transformation environment
+ * @return The transformed node.
+ */
+static ir_node *gen_Mux(ia32_transform_env_t *env) {
+ ir_node *node = env->irn;
+ ir_node *new_op = new_rd_ia32_CMov(env->dbg, env->irg, env->block, \
+ get_Mux_sel(node), get_Mux_false(node), get_Mux_true(node), env->mode);
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ return new_op;
+}
- i = 0;
- foreach_out_edge((const ir_node *)proj, edge) {
- succ = get_edge_src_irn(edge);
- assert(is_Proj(succ) && "non-Proj from a Proj_T (pn_Start_T_args).");
- projargs[i++] = succ;
- }
- cc = get_method_calling_convention(tp);
+/**
+ * Following conversion rules apply:
+ *
+ * INT -> INT
+ * ============
+ * 1) n bit -> m bit n > m (downscale)
+ * a) target is signed: movsx
+ * b) target is unsigned: and with lower bits sets
+ * 2) n bit -> m bit n == m (sign change)
+ * always ignored
+ * 3) n bit -> m bit n < m (upscale)
+ * a) source is signed: movsx
+ * b) source is unsigned: and with lower bits sets
+ *
+ * INT -> FLOAT
+ * ==============
+ * SSE(1/2) convert to float or double (cvtsi2ss/sd)
+ *
+ * FLOAT -> INT
+ * ==============
+ * SSE(1/2) convert from float or double to 32bit int (cvtss/sd2si)
+ * if target mode < 32bit: additional INT -> INT conversion (see above)
+ *
+ * FLOAT -> FLOAT
+ * ================
+ * SSE(1/2) convert from float or double to double or float (cvtss/sd2sd/ss)
+ * x87 is mode_E internally, conversions happen only at load and store
+ * in non-strict semantic
+ */
- /* loop over all parameters and check whether its a int or float */
- for (i = 0; i < n; i++) {
- mode = get_irn_mode(projargs[i]);
- cur_pn = get_Proj_proj(projargs[i]);
+//static ir_node *gen_int_downscale_conv(ia32_transform_env_t *env, ir_node *op,
+// ir_mode *src_mode, ir_mode *tgt_mode)
+//{
+// int n = get_mode_size_bits(src_mode);
+// int m = get_mode_size_bits(tgt_mode);
+// dbg_info *dbg = env->dbg;
+// ir_graph *irg = env->irg;
+// ir_node *block = env->block;
+// ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+// ir_node *nomem = new_rd_NoMem(irg);
+// ir_node *new_op, *proj;
+// assert(n > m && "downscale expected");
+// if (mode_is_signed(src_mode) && mode_is_signed(tgt_mode)) {
+// /* ASHL Sn, n - m */
+// new_op = new_rd_ia32_Shl(dbg, irg, block, noreg, noreg, op, noreg, nomem, mode_T);
+// proj = new_rd_Proj(dbg, irg, block, new_op, src_mode, 0);
+// set_ia32_Immop_tarval(new_op, new_tarval_from_long(n - m, mode_Is));
+// set_ia32_am_support(new_op, ia32_am_Source);
+// SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+// /* ASHR Sn, n - m */
+// new_op = new_rd_ia32_Shrs(dbg, irg, block, noreg, noreg, proj, noreg, nomem, mode_T);
+// set_ia32_Immop_tarval(new_op, new_tarval_from_long(n - m, mode_Is));
+// }
+// else {
+// new_op = new_rd_ia32_And(dbg, irg, block, noreg, noreg, op, noreg, nomem, mode_T);
+// set_ia32_Immop_tarval(new_op, new_tarval_from_long((1 << m) - 1, mode_Is));
+// }
+// return new_op;
+//}
- if (cc & cc_reg_param) {
- temp_req = ia32_get_RegParam_req(n, projargs, cur_pn, cc);
+/**
+ * Transforms a Conv node.
+ *
+ * @param env The transformation environment
+ * @param op The operator
+ * @return The created ia32 Conv node
+ */
+static ir_node *gen_Conv(ia32_transform_env_t *env, ir_node *op) {
+ dbg_info *dbg = env->dbg;
+ ir_graph *irg = env->irg;
+ ir_mode *src_mode = get_irn_mode(op);
+ ir_mode *tgt_mode = env->mode;
+ int src_bits = get_mode_size_bits(src_mode);
+ int tgt_bits = get_mode_size_bits(tgt_mode);
+ ir_node *block = env->block;
+ ir_node *new_op = NULL;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_rd_NoMem(irg);
+ ir_node *proj;
+ DEBUG_ONLY(firm_dbg_module_t *mod = env->mod;)
+
+ if (src_mode == tgt_mode) {
+ /* this can happen when changing mode_P to mode_Is */
+ DB((mod, LEVEL_1, "killed Conv(mode, mode) ..."));
+ edges_reroute(env->irn, op, irg);
+ }
+ else if (mode_is_float(src_mode)) {
+ /* we convert from float ... */
+ if (mode_is_float(tgt_mode)) {
+ /* ... to float */
+ if (USE_SSE2(env->cg)) {
+ DB((mod, LEVEL_1, "create Conv(float, float) ..."));
+ new_op = new_rd_ia32_Conv_FP2FP(dbg, irg, block, noreg, noreg, op, nomem, mode_T);
+ }
+ else {
+ DB((mod, LEVEL_1, "killed Conv(float, float) ..."));
+ edges_reroute(env->irn, op, irg);
+ }
+ }
+ else {
+ /* ... to int */
+ DB((mod, LEVEL_1, "create Conv(float, int) ..."));
+ new_op = new_rd_ia32_Conv_FP2I(dbg, irg, block, noreg, noreg, op, nomem, mode_T);
+ /* if target mode is not int: add an additional downscale convert */
+ if (tgt_bits < 32) {
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+ set_ia32_am_support(new_op, ia32_am_Source);
+ set_ia32_tgt_mode(new_op, tgt_mode);
+ set_ia32_src_mode(new_op, src_mode);
+
+ proj = new_rd_Proj(dbg, irg, block, new_op, mode_Is, 0);
+
+ if (tgt_bits == 8 || src_bits == 8) {
+ new_op = new_rd_ia32_Conv_I2I8Bit(dbg, irg, block, noreg, noreg, proj, nomem, mode_T);
}
else {
- temp_req = NULL;
+ new_op = new_rd_ia32_Conv_I2I(dbg, irg, block, noreg, noreg, proj, nomem, mode_T);
}
-
- if (temp_req) {
- /* passed in register */
- env->cg->reg_param_req[cur_pn] = temp_req;
+ }
+ }
+ }
+ else {
+ /* we convert from int ... */
+ if (mode_is_float(tgt_mode)) {
+ /* ... to float */
+ DB((mod, LEVEL_1, "create Conv(int, float) ..."));
+ new_op = new_rd_ia32_Conv_I2FP(dbg, irg, block, noreg, noreg, op, nomem, mode_T);
+ }
+ else {
+ /* ... to int */
+ if (get_mode_size_bits(src_mode) == tgt_bits) {
+ DB((mod, LEVEL_1, "omitting equal size Conv(%+F, %+F) ...", src_mode, tgt_mode));
+ edges_reroute(env->irn, op, irg);
+ }
+ else {
+ DB((mod, LEVEL_1, "create Conv(int, int) ...", src_mode, tgt_mode));
+ if (tgt_bits == 8 || src_bits == 8) {
+ new_op = new_rd_ia32_Conv_I2I8Bit(dbg, irg, block, noreg, noreg, op, nomem, mode_T);
}
else {
- /* passed on stack */
- if (mode_is_float(mode))
- irn = new_rd_ia32_fStackParam(get_irn_dbg_info(projargs[i]), irg, block, proj_M, mode);
- else
- irn = new_rd_ia32_StackParam(get_irn_dbg_info(projargs[i]), irg, block, proj_M, mode);
-
- set_ia32_pncode(irn, cur_pn);
-
- /* kill the old "Proj Arg" and replace with the new stack param */
- exchange(projargs[i], irn);
+ new_op = new_rd_ia32_Conv_I2I(dbg, irg, block, noreg, noreg, op, nomem, mode_T);
}
}
+ }
+ }
- free(projargs);
+ if (new_op) {
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+ set_ia32_tgt_mode(new_op, tgt_mode);
+ set_ia32_src_mode(new_op, src_mode);
- break;
- case pn_Start_P_frame_base:
- case pn_Start_X_initial_exec:
- case pn_Start_M:
- case pn_Start_P_globals:
- case pn_Start_P_value_arg_base:
- break;
- default:
- assert(0 && "unsupported Proj(Start)");
+ set_ia32_am_support(new_op, ia32_am_Source);
+
+ new_op = new_rd_Proj(dbg, irg, block, new_op, tgt_mode, 0);
}
- return NULL;
+ return new_op;
}
-/**
- * Transform some Proj's (Proj_Proj, Proj_Start, Proj_Cmp, Proj_Cond, Proj_Call).
- * All others are ignored.
+
+
+/********************************************
+ * _ _
+ * | | | |
+ * | |__ ___ _ __ ___ __| | ___ ___
+ * | '_ \ / _ \ '_ \ / _ \ / _` |/ _ \/ __|
+ * | |_) | __/ | | | (_) | (_| | __/\__ \
+ * |_.__/ \___|_| |_|\___/ \__,_|\___||___/
*
- * @param mod the debug module
- * @param block the block the new node should belong to
- * @param node the ir Proj node
- * @param mode mode of the Proj
- * @return The transformed node.
+ ********************************************/
+
+static ir_node *gen_StackParam(ia32_transform_env_t *env) {
+ ir_node *new_op = NULL;
+ ir_node *node = env->irn;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *mem = new_rd_NoMem(env->irg);
+ ir_node *ptr = get_irn_n(node, 0);
+ entity *ent = be_get_frame_entity(node);
+ ir_mode *mode = env->mode;
+
+// /* If the StackParam has only one user -> */
+// /* put it in the Block where the user resides */
+// if (get_irn_n_edges(node) == 1) {
+// env->block = get_nodes_block(get_edge_src_irn(get_irn_out_edge_first(node)));
+// }
+
+ if (mode_is_float(mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ new_op = new_rd_ia32_fLoad(env->dbg, env->irg, env->block, ptr, noreg, mem, mode_T);
+ else
+ new_op = new_rd_ia32_vfld(env->dbg, env->irg, env->block, ptr, noreg, mem, mode_T);
+ }
+ else {
+ new_op = new_rd_ia32_Load(env->dbg, env->irg, env->block, ptr, noreg, mem, mode_T);
+ }
+
+ set_ia32_frame_ent(new_op, ent);
+ set_ia32_use_frame(new_op);
+
+ set_ia32_am_support(new_op, ia32_am_Source);
+ set_ia32_op_type(new_op, ia32_AddrModeS);
+ set_ia32_am_flavour(new_op, ia32_B);
+ set_ia32_ls_mode(new_op, mode);
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ return new_rd_Proj(env->dbg, env->irg, env->block, new_op, mode, 0);
+}
+
+/**
+ * Transforms a FrameAddr into an ia32 Add.
*/
-static ir_node *gen_Proj(ia32_transform_env_t *env) {
- ir_node *new_node = NULL;
- ir_node *pred = get_Proj_pred(env->irn);
+static ir_node *gen_FrameAddr(ia32_transform_env_t *env) {
+ ir_node *new_op = NULL;
+ ir_node *node = env->irn;
+ ir_node *op = get_irn_n(node, 0);
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_rd_NoMem(env->irg);
+
+ new_op = new_rd_ia32_Add(env->dbg, env->irg, env->block, noreg, noreg, op, noreg, nomem, mode_T);
+ set_ia32_frame_ent(new_op, be_get_frame_entity(node));
+ set_ia32_am_support(new_op, ia32_am_Full);
+ set_ia32_use_frame(new_op);
+ set_ia32_immop_type(new_op, ia32_ImmConst);
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ return new_rd_Proj(env->dbg, env->irg, env->block, new_op, env->mode, 0);
+}
+
+/**
+ * Transforms a FrameLoad into an ia32 Load.
+ */
+static ir_node *gen_FrameLoad(ia32_transform_env_t *env) {
+ ir_node *new_op = NULL;
+ ir_node *node = env->irn;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *mem = get_irn_n(node, 0);
+ ir_node *ptr = get_irn_n(node, 1);
+ entity *ent = be_get_frame_entity(node);
+ ir_mode *mode = get_type_mode(get_entity_type(ent));
+
+ if (mode_is_float(mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ new_op = new_rd_ia32_fLoad(env->dbg, env->irg, env->block, ptr, noreg, mem, mode_T);
+ else
+ new_op = new_rd_ia32_vfld(env->dbg, env->irg, env->block, ptr, noreg, mem, mode_T);
+ }
+ else
+ new_op = new_rd_ia32_Load(env->dbg, env->irg, env->block, ptr, noreg, mem, mode_T);
+
+ set_ia32_frame_ent(new_op, ent);
+ set_ia32_use_frame(new_op);
+
+ set_ia32_am_support(new_op, ia32_am_Source);
+ set_ia32_op_type(new_op, ia32_AddrModeS);
+ set_ia32_am_flavour(new_op, ia32_B);
+ set_ia32_ls_mode(new_op, mode);
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ return new_op;
+}
+
- if (env->mode == mode_M)
- return NULL;
+/**
+ * Transforms a FrameStore into an ia32 Store.
+ */
+static ir_node *gen_FrameStore(ia32_transform_env_t *env) {
+ ir_node *new_op = NULL;
+ ir_node *node = env->irn;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *mem = get_irn_n(node, 0);
+ ir_node *ptr = get_irn_n(node, 1);
+ ir_node *val = get_irn_n(node, 2);
+ entity *ent = be_get_frame_entity(node);
+ ir_mode *mode = get_irn_mode(val);
- if (get_irn_op(pred) == op_Start) {
- new_node = gen_Proj_Start(env, env->irn, pred);
+ if (mode_is_float(mode)) {
+ FP_USED(env->cg);
+ if (USE_SSE2(env->cg))
+ new_op = new_rd_ia32_fStore(env->dbg, env->irg, env->block, ptr, noreg, val, mem, mode_T);
+ else
+ new_op = new_rd_ia32_vfst(env->dbg, env->irg, env->block, ptr, noreg, val, mem, mode_T);
}
+ else if (get_mode_size_bits(mode) == 8) {
+ new_op = new_rd_ia32_Store8Bit(env->dbg, env->irg, env->block, ptr, noreg, val, mem, mode_T);
+ }
+ else {
+ new_op = new_rd_ia32_Store(env->dbg, env->irg, env->block, ptr, noreg, val, mem, mode_T);
+ }
+
+ set_ia32_frame_ent(new_op, ent);
+ set_ia32_use_frame(new_op);
- return new_node;
+ set_ia32_am_support(new_op, ia32_am_Dest);
+ set_ia32_op_type(new_op, ia32_AddrModeD);
+ set_ia32_am_flavour(new_op, ia32_B);
+ set_ia32_ls_mode(new_op, mode);
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ return new_op;
}
*
*********************************************************/
+/**
+ * Transforms a Sub or fSub into Neg--Add iff OUT_REG == SRC2_REG.
+ * THIS FUNCTIONS MUST BE CALLED AFTER REGISTER ALLOCATION.
+ */
+void ia32_transform_sub_to_neg_add(ir_node *irn, ia32_code_gen_t *cg) {
+ ia32_transform_env_t tenv;
+ ir_node *in1, *in2, *noreg, *nomem, *res;
+ const arch_register_t *in1_reg, *in2_reg, *out_reg, **slots;
+
+ /* Return if AM node or not a Sub or fSub */
+ if (get_ia32_op_type(irn) != ia32_Normal || !(is_ia32_Sub(irn) || is_ia32_fSub(irn)))
+ return;
+
+ noreg = ia32_new_NoReg_gp(cg);
+ nomem = new_rd_NoMem(cg->irg);
+ in1 = get_irn_n(irn, 2);
+ in2 = get_irn_n(irn, 3);
+ in1_reg = arch_get_irn_register(cg->arch_env, in1);
+ in2_reg = arch_get_irn_register(cg->arch_env, in2);
+ out_reg = get_ia32_out_reg(irn, 0);
+
+ tenv.block = get_nodes_block(irn);
+ tenv.dbg = get_irn_dbg_info(irn);
+ tenv.irg = cg->irg;
+ tenv.irn = irn;
+ DEBUG_ONLY(tenv.mod = cg->mod;)
+ tenv.mode = get_ia32_res_mode(irn);
+ tenv.cg = cg;
+
+ /* in case of sub and OUT == SRC2 we can transform the sequence into neg src2 -- add */
+ if (REGS_ARE_EQUAL(out_reg, in2_reg)) {
+ /* generate the neg src2 */
+ res = gen_Minus(&tenv, in2);
+ arch_set_irn_register(cg->arch_env, res, in2_reg);
+
+ /* add to schedule */
+ sched_add_before(irn, res);
+
+ /* generate the add */
+ if (mode_is_float(tenv.mode)) {
+ res = new_rd_ia32_fAdd(tenv.dbg, tenv.irg, tenv.block, noreg, noreg, res, in1, nomem, mode_T);
+ set_ia32_am_support(res, ia32_am_Source);
+ }
+ else {
+ res = new_rd_ia32_Add(tenv.dbg, tenv.irg, tenv.block, noreg, noreg, res, in1, nomem, mode_T);
+ set_ia32_am_support(res, ia32_am_Full);
+ }
+
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(tenv.cg, irn));
+ /* copy register */
+ slots = get_ia32_slots(res);
+ slots[0] = in2_reg;
+
+ /* add to schedule */
+ sched_add_before(irn, res);
+
+ /* remove the old sub */
+ sched_remove(irn);
+
+ /* exchange the add and the sub */
+ exchange(irn, res);
+ }
+}
+
+/**
+ * Transforms a LEA into an Add if possible
+ * THIS FUNCTIONS MUST BE CALLED AFTER REGISTER ALLOCATION.
+ */
+void ia32_transform_lea_to_add(ir_node *irn, ia32_code_gen_t *cg) {
+ ia32_am_flavour_t am_flav;
+ int imm = 0;
+ ir_node *res = NULL;
+ ir_node *nomem, *noreg, *base, *index, *op1, *op2;
+ char *offs;
+ ia32_transform_env_t tenv;
+ const arch_register_t *out_reg, *base_reg, *index_reg;
+
+ /* must be a LEA */
+ if (! is_ia32_Lea(irn))
+ return;
+
+ am_flav = get_ia32_am_flavour(irn);
+
+ /* only some LEAs can be transformed to an Add */
+ if (am_flav != ia32_am_B && am_flav != ia32_am_OB && am_flav != ia32_am_OI && am_flav != ia32_am_BI)
+ return;
+
+ noreg = ia32_new_NoReg_gp(cg);
+ nomem = new_rd_NoMem(cg->irg);
+ op1 = noreg;
+ op2 = noreg;
+ base = get_irn_n(irn, 0);
+ index = get_irn_n(irn,1);
+
+ offs = get_ia32_am_offs(irn);
+
+ /* offset has a explicit sign -> we need to skip + */
+ if (offs && offs[0] == '+')
+ offs++;
+
+ out_reg = arch_get_irn_register(cg->arch_env, irn);
+ base_reg = arch_get_irn_register(cg->arch_env, base);
+ index_reg = arch_get_irn_register(cg->arch_env, index);
+
+ tenv.block = get_nodes_block(irn);
+ tenv.dbg = get_irn_dbg_info(irn);
+ tenv.irg = cg->irg;
+ tenv.irn = irn;
+ DEBUG_ONLY(tenv.mod = cg->mod;)
+ tenv.mode = get_irn_mode(irn);
+ tenv.cg = cg;
+
+ switch(get_ia32_am_flavour(irn)) {
+ case ia32_am_B:
+ /* out register must be same as base register */
+ if (! REGS_ARE_EQUAL(out_reg, base_reg))
+ return;
+
+ op1 = base;
+ break;
+ case ia32_am_OB:
+ /* out register must be same as base register */
+ if (! REGS_ARE_EQUAL(out_reg, base_reg))
+ return;
+
+ op1 = base;
+ imm = 1;
+ break;
+ case ia32_am_OI:
+ /* out register must be same as index register */
+ if (! REGS_ARE_EQUAL(out_reg, index_reg))
+ return;
+
+ op1 = index;
+ imm = 1;
+ break;
+ case ia32_am_BI:
+ /* out register must be same as one in register */
+ if (REGS_ARE_EQUAL(out_reg, base_reg)) {
+ op1 = base;
+ op2 = index;
+ }
+ else if (REGS_ARE_EQUAL(out_reg, index_reg)) {
+ op1 = index;
+ op2 = base;
+ }
+ else {
+ /* in registers a different from out -> no Add possible */
+ return;
+ }
+ default:
+ break;
+ }
+
+ res = new_rd_ia32_Add(tenv.dbg, tenv.irg, tenv.block, noreg, noreg, op1, op2, nomem, mode_T);
+ arch_set_irn_register(cg->arch_env, res, out_reg);
+ set_ia32_op_type(res, ia32_Normal);
+
+ if (imm) {
+ set_ia32_cnst(res, offs);
+ set_ia32_immop_type(res, ia32_ImmConst);
+ }
+
+ SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(cg, irn));
+
+ /* add Add to schedule */
+ sched_add_before(irn, res);
+
+ res = new_rd_Proj(tenv.dbg, tenv.irg, tenv.block, res, tenv.mode, 0);
+
+ /* add result Proj to schedule */
+ sched_add_before(irn, res);
+ /* remove the old LEA */
+ sched_remove(irn);
+
+ /* exchange the Add and the LEA */
+ exchange(irn, res);
+}
/**
* Transforms the given firm node (and maybe some other related nodes)
*/
void ia32_transform_node(ir_node *node, void *env) {
ia32_code_gen_t *cgenv = (ia32_code_gen_t *)env;
- opcode code = get_irn_opcode(node);
+ opcode code;
ir_node *asm_node = NULL;
ia32_transform_env_t tenv;
if (is_Block(node))
return;
- tenv.arch_env = cgenv->arch_env;
tenv.block = get_nodes_block(node);
tenv.dbg = get_irn_dbg_info(node);
tenv.irg = current_ir_graph;
tenv.irn = node;
- tenv.mod = cgenv->mod;
+ DEBUG_ONLY(tenv.mod = cgenv->mod;)
tenv.mode = get_irn_mode(node);
tenv.cg = cgenv;
-#define UNOP(a) case iro_##a: asm_node = gen_##a(&tenv, get_##a##_op(node)); break
-#define BINOP(a) case iro_##a: asm_node = gen_##a(&tenv, get_##a##_left(node), get_##a##_right(node)); break
-#define BINOP_COM(a) case iro_##a: asm_node = gen_arith_Op(&tenv, get_##a##_left(node), get_##a##_right(node), 1); break
-#define BINOP_NCOM(a) case iro_##a: asm_node = gen_arith_Op(&tenv, get_##a##_left(node), get_##a##_right(node), 0); break
-#define GEN(a) case iro_##a: asm_node = gen_##a(&tenv); break
-#define IGN(a) case iro_##a: break
-#define BAD(a) case iro_##a: goto bad
+#define UNOP(a) case iro_##a: asm_node = gen_##a(&tenv, get_##a##_op(node)); break
+#define BINOP(a) case iro_##a: asm_node = gen_##a(&tenv, get_##a##_left(node), get_##a##_right(node)); break
+#define GEN(a) case iro_##a: asm_node = gen_##a(&tenv); break
+#define IGN(a) case iro_##a: break
+#define BAD(a) case iro_##a: goto bad
+#define OTHER_BIN(a) \
+ if (get_irn_op(node) == get_op_##a()) { \
+ asm_node = gen_##a(&tenv, get_irn_n(node, 0), get_irn_n(node, 1)); \
+ break; \
+ }
+#define BE_GEN(a) \
+ if (be_is_##a(node)) { \
+ asm_node = gen_##a(&tenv); \
+ break; \
+ }
DBG((tenv.mod, LEVEL_1, "check %+F ... ", node));
+ code = get_irn_opcode(node);
switch (code) {
- BINOP_COM(Add);
- BINOP_COM(Mul);
- BINOP_COM(And);
- BINOP_COM(Or);
- BINOP_COM(Eor);
-
- BINOP_NCOM(Sub);
- BINOP_NCOM(Shl);
- BINOP_NCOM(Shr);
- BINOP_NCOM(Shrs);
- BINOP_NCOM(Quot);
- BINOP_NCOM(Div);
- BINOP_NCOM(Mod);
- BINOP_NCOM(DivMod);
+ BINOP(Add);
+ BINOP(Sub);
+ BINOP(Mul);
+ BINOP(And);
+ BINOP(Or);
+ BINOP(Eor);
+
+ BINOP(Shl);
+ BINOP(Shr);
+ BINOP(Shrs);
+ BINOP(Rot);
+
+ BINOP(Quot);
+
+ BINOP(Div);
+ BINOP(Mod);
+ BINOP(DivMod);
UNOP(Minus);
UNOP(Conv);
GEN(Load);
GEN(Store);
- GEN(Call);
GEN(Cond);
- GEN(Proj);
+ GEN(CopyB);
+ GEN(Mux);
+
+ IGN(Call);
+ IGN(Alloc);
+ IGN(Proj);
IGN(Block);
IGN(Start);
IGN(End);
IGN(Break);
IGN(Cmp);
IGN(Unknown);
+
/* constant transformation happens earlier */
IGN(Const);
IGN(SymConst);
+ IGN(Sync);
- BAD(Alloc);
BAD(Raise);
BAD(Sel);
BAD(InstOf);
BAD(Cast);
BAD(Free);
- BAD(Sync);
BAD(Tuple);
BAD(Id);
BAD(Bad);
BAD(CallBegin);
BAD(EndReg);
BAD(EndExcept);
- BAD(Mux);
- BAD(CopyB);
default:
- if (get_irn_op(node) == get_op_Max() ||
- get_irn_op(node) == get_op_Min() ||
- get_irn_op(node) == get_op_Mulh())
- {
- asm_node = gen_arith_Op(&tenv, get_irn_n(node, 0), get_irn_n(node, 1), 1);
- }
+ OTHER_BIN(Max);
+ OTHER_BIN(Min);
+ OTHER_BIN(Mulh);
+
+ BE_GEN(FrameAddr);
+ BE_GEN(FrameLoad);
+ BE_GEN(FrameStore);
+ BE_GEN(StackParam);
break;
bad:
fprintf(stderr, "Not implemented: %s\n", get_irn_opname(node));
assert(0);
}
+ /* exchange nodes if a new one was generated */
if (asm_node) {
exchange(node, asm_node);
DB((tenv.mod, LEVEL_1, "created node %+F[%p]\n", asm_node, asm_node));
else {
DB((tenv.mod, LEVEL_1, "ignored\n"));
}
+
+#undef UNOP
+#undef BINOP
+#undef GEN
+#undef IGN
+#undef BAD
+#undef OTHER_BIN
+#undef BE_GEN
}
projects / libfirm / blobdiff