#include "irprintf.h"
#include "iredges_t.h"
#include "ircons.h"
+#include "irflag.h"
#include "irgmod.h"
#include "irgopt.h"
#include "irbitset.h"
#include "irgopt.h"
-#include "irdump_grgen.h"
#include "pdeq.h"
#include "pset.h"
#include "debug.h"
#include "xmalloc.h"
#include "irtools.h"
#include "iroptimize.h"
+#include "instrument.h"
#include "../beabi.h"
#include "../beirg_t.h"
#include "../begnuas.h"
#include "../bestate.h"
#include "../beflags.h"
+#include "../betranshlp.h"
#include "bearch_ia32_t.h"
#include "ia32_new_nodes.h"
#include "gen_ia32_regalloc_if.h"
#include "gen_ia32_machine.h"
+#include "ia32_common_transform.h"
#include "ia32_transform.h"
#include "ia32_emitter.h"
#include "ia32_map_regs.h"
/**
- * Returns gp_noreg or fp_noreg, depending in input requirements.
+ * Returns the admissible noreg register node for input register pos of node irn.
*/
-ir_node *ia32_get_admissible_noreg(ia32_code_gen_t *cg, ir_node *irn, int pos) {
+static ir_node *ia32_get_admissible_noreg(ia32_code_gen_t *cg, ir_node *irn, int pos)
+{
const arch_register_req_t *req;
req = arch_get_register_req(cg->arch_env, irn, pos);
* If the node returns a tuple (mode_T) then the proj's
* will be asked for this information.
*/
-static const arch_register_req_t *ia32_get_irn_reg_req(const void *self,
- const ir_node *node,
+static const arch_register_req_t *ia32_get_irn_reg_req(const ir_node *node,
int pos)
{
- long node_pos = pos == -1 ? 0 : pos;
- ir_mode *mode = is_Block(node) ? NULL : get_irn_mode(node);
- (void) self;
+ ir_mode *mode = get_irn_mode(node);
+ long node_pos;
- if (is_Block(node) || mode == mode_X) {
+ if (mode == mode_X || is_Block(node)) {
return arch_no_register_req;
}
return arch_no_register_req;
}
+ node_pos = pos == -1 ? 0 : pos;
if (is_Proj(node)) {
- if(mode == mode_M)
- return arch_no_register_req;
-
- if(pos >= 0) {
+ if (mode == mode_M || pos >= 0) {
return arch_no_register_req;
}
if (is_ia32_irn(node)) {
const arch_register_req_t *req;
- if(pos >= 0)
+ if (pos >= 0)
req = get_ia32_in_req(node, pos);
else
req = get_ia32_out_req(node, node_pos);
/* unknowns should be transformed already */
assert(!is_Unknown(node));
-
return arch_no_register_req;
}
-static void ia32_set_irn_reg(const void *self, ir_node *irn,
- const arch_register_t *reg)
+static void ia32_set_irn_reg(ir_node *irn, const arch_register_t *reg)
{
- int pos = 0;
- (void) self;
+ int pos = 0;
if (get_irn_mode(irn) == mode_X) {
return;
}
}
-static const arch_register_t *ia32_get_irn_reg(const void *self,
- const ir_node *irn)
+static const arch_register_t *ia32_get_irn_reg(const ir_node *irn)
{
int pos = 0;
const arch_register_t *reg = NULL;
- (void) self;
if (is_Proj(irn)) {
return reg;
}
-static arch_irn_class_t ia32_classify(const void *self, const ir_node *irn) {
+static arch_irn_class_t ia32_classify(const ir_node *irn) {
arch_irn_class_t classification = arch_irn_class_normal;
- (void) self;
irn = skip_Proj_const(irn);
if (is_ia32_St(irn))
classification |= arch_irn_class_store;
- if (is_ia32_need_stackent(irn))
+ if (is_ia32_is_reload(irn))
classification |= arch_irn_class_reload;
+ if (is_ia32_is_spill(irn))
+ classification |= arch_irn_class_spill;
+
+ if (is_ia32_is_remat(irn))
+ classification |= arch_irn_class_remat;
+
return classification;
}
-static arch_irn_flags_t ia32_get_flags(const void *self, const ir_node *irn) {
+static arch_irn_flags_t ia32_get_flags(const ir_node *irn) {
arch_irn_flags_t flags = arch_irn_flags_none;
- (void) self;
if (is_Unknown(irn))
return arch_irn_flags_ignore;
*/
typedef struct {
be_abi_call_flags_bits_t flags; /**< The call flags. */
- const arch_isa_t *isa; /**< The ISA handle. */
const arch_env_t *aenv; /**< The architecture environment. */
ir_graph *irg; /**< The associated graph. */
} ia32_abi_env_t;
-static ir_entity *ia32_get_frame_entity(const void *self, const ir_node *irn) {
- (void) self;
+static ir_entity *ia32_get_frame_entity(const ir_node *irn) {
return is_ia32_irn(irn) ? get_ia32_frame_ent(irn) : NULL;
}
-static void ia32_set_frame_entity(const void *self, ir_node *irn, ir_entity *ent) {
- (void) self;
+static void ia32_set_frame_entity(ir_node *irn, ir_entity *ent) {
set_ia32_frame_ent(irn, ent);
}
-static void ia32_set_frame_offset(const void *self, ir_node *irn, int bias) {
- const ia32_irn_ops_t *ops = self;
+static void ia32_set_frame_offset(ir_node *irn, int bias)
+{
+ if (get_ia32_frame_ent(irn) == NULL)
+ return;
- if (get_ia32_frame_ent(irn)) {
- if (is_ia32_Pop(irn)) {
- int omit_fp = be_abi_omit_fp(ops->cg->birg->abi);
- if (omit_fp) {
- /* Pop nodes modify the stack pointer before calculating the destination
- * address, so fix this here
- */
- bias -= 4;
- }
+ if (is_ia32_Pop(irn) || is_ia32_PopMem(irn)) {
+ ia32_code_gen_t *cg = ia32_current_cg;
+ int omit_fp = be_abi_omit_fp(cg->birg->abi);
+ if (omit_fp) {
+ /* Pop nodes modify the stack pointer before calculating the
+ * destination address, so fix this here
+ */
+ bias -= 4;
}
-
- add_ia32_am_offs_int(irn, bias);
}
+ add_ia32_am_offs_int(irn, bias);
}
-static int ia32_get_sp_bias(const void *self, const ir_node *node)
+static int ia32_get_sp_bias(const ir_node *node)
{
- (void) self;
+ if (is_ia32_Call(node))
+ return -(int)get_ia32_call_attr_const(node)->pop;
if (is_ia32_Push(node))
return 4;
- if (is_ia32_Pop(node))
+ if (is_ia32_Pop(node) || is_ia32_PopMem(node))
return -4;
return 0;
{
ia32_abi_env_t *env = self;
if(env->flags.try_omit_fp)
- pset_insert_ptr(s, env->isa->bp);
+ pset_insert_ptr(s, env->aenv->bp);
}
/**
* Generate the routine prologue.
*
- * @param self The callback object.
- * @param mem A pointer to the mem node. Update this if you define new memory.
- * @param reg_map A map mapping all callee_save/ignore/parameter registers to their defining nodes.
+ * @param self The callback object.
+ * @param mem A pointer to the mem node. Update this if you define new memory.
+ * @param reg_map A map mapping all callee_save/ignore/parameter registers to their defining nodes.
+ * @param stack_bias Points to the current stack bias, can be modified if needed.
*
- * @return The register which shall be used as a stack frame base.
+ * @return The register which shall be used as a stack frame base.
*
* All nodes which define registers in @p reg_map must keep @p reg_map current.
*/
-static const arch_register_t *ia32_abi_prologue(void *self, ir_node **mem, pmap *reg_map)
+static const arch_register_t *ia32_abi_prologue(void *self, ir_node **mem, pmap *reg_map, int *stack_bias)
{
- ia32_abi_env_t *env = self;
- const ia32_isa_t *isa = (ia32_isa_t *)env->isa;
- ia32_code_gen_t *cg = isa->cg;
+ ia32_abi_env_t *env = self;
+ ia32_code_gen_t *cg = ia32_current_cg;
+ const arch_env_t *arch_env = env->aenv;
if (! env->flags.try_omit_fp) {
- ir_node *bl = get_irg_start_block(env->irg);
- ir_node *curr_sp = be_abi_reg_map_get(reg_map, env->isa->sp);
- ir_node *curr_bp = be_abi_reg_map_get(reg_map, env->isa->bp);
- ir_node *noreg = ia32_new_NoReg_gp(cg);
- ir_node *push;
+ ir_graph *irg =env->irg;
+ ir_node *bl = get_irg_start_block(irg);
+ ir_node *curr_sp = be_abi_reg_map_get(reg_map, arch_env->sp);
+ ir_node *curr_bp = be_abi_reg_map_get(reg_map, arch_env->bp);
+ ir_node *noreg = ia32_new_NoReg_gp(cg);
+ ir_node *push;
/* ALL nodes representing bp must be set to ignore. */
be_node_set_flags(get_Proj_pred(curr_bp), BE_OUT_POS(get_Proj_proj(curr_bp)), arch_irn_flags_ignore);
/* push ebp */
- push = new_rd_ia32_Push(NULL, env->irg, bl, noreg, noreg, *mem, curr_sp, curr_bp);
- curr_sp = new_r_Proj(env->irg, bl, push, get_irn_mode(curr_sp), pn_ia32_Push_stack);
- *mem = new_r_Proj(env->irg, bl, push, mode_M, pn_ia32_Push_M);
+ push = new_rd_ia32_Push(NULL, irg, bl, noreg, noreg, *mem, curr_bp, curr_sp);
+ curr_sp = new_r_Proj(irg, bl, push, get_irn_mode(curr_sp), pn_ia32_Push_stack);
+ *mem = new_r_Proj(irg, bl, push, mode_M, pn_ia32_Push_M);
/* the push must have SP out register */
- arch_set_irn_register(env->aenv, curr_sp, env->isa->sp);
+ arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
set_ia32_flags(push, arch_irn_flags_ignore);
+ /* this modifies the stack bias, because we pushed 32bit */
+ *stack_bias -= 4;
+
/* move esp to ebp */
- curr_bp = be_new_Copy(env->isa->bp->reg_class, env->irg, bl, curr_sp);
- be_set_constr_single_reg(curr_bp, BE_OUT_POS(0), env->isa->bp);
- arch_set_irn_register(env->aenv, curr_bp, env->isa->bp);
+ curr_bp = be_new_Copy(arch_env->bp->reg_class, irg, bl, curr_sp);
+ be_set_constr_single_reg(curr_bp, BE_OUT_POS(0), arch_env->bp);
+ arch_set_irn_register(arch_env, curr_bp, arch_env->bp);
be_node_set_flags(curr_bp, BE_OUT_POS(0), arch_irn_flags_ignore);
/* beware: the copy must be done before any other sp use */
- curr_sp = be_new_CopyKeep_single(env->isa->sp->reg_class, env->irg, bl, curr_sp, curr_bp, get_irn_mode(curr_sp));
- be_set_constr_single_reg(curr_sp, BE_OUT_POS(0), env->isa->sp);
- arch_set_irn_register(env->aenv, curr_sp, env->isa->sp);
+ curr_sp = be_new_CopyKeep_single(arch_env->sp->reg_class, irg, bl, curr_sp, curr_bp, get_irn_mode(curr_sp));
+ be_set_constr_single_reg(curr_sp, BE_OUT_POS(0), arch_env->sp);
+ arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
be_node_set_flags(curr_sp, BE_OUT_POS(0), arch_irn_flags_ignore);
- be_abi_reg_map_set(reg_map, env->isa->sp, curr_sp);
- be_abi_reg_map_set(reg_map, env->isa->bp, curr_bp);
+ be_abi_reg_map_set(reg_map, arch_env->sp, curr_sp);
+ be_abi_reg_map_set(reg_map, arch_env->bp, curr_bp);
- return env->isa->bp;
+ return arch_env->bp;
}
- return env->isa->sp;
+ return arch_env->sp;
}
/**
*/
static void ia32_abi_epilogue(void *self, ir_node *bl, ir_node **mem, pmap *reg_map)
{
- ia32_abi_env_t *env = self;
- ir_node *curr_sp = be_abi_reg_map_get(reg_map, env->isa->sp);
- ir_node *curr_bp = be_abi_reg_map_get(reg_map, env->isa->bp);
+ ia32_abi_env_t *env = self;
+ const arch_env_t *arch_env = env->aenv;
+ ir_node *curr_sp = be_abi_reg_map_get(reg_map, arch_env->sp);
+ ir_node *curr_bp = be_abi_reg_map_get(reg_map, arch_env->bp);
+ ir_graph *irg = env->irg;
if (env->flags.try_omit_fp) {
/* simply remove the stack frame here */
- curr_sp = be_new_IncSP(env->isa->sp, env->irg, bl, curr_sp, BE_STACK_FRAME_SIZE_SHRINK);
- add_irn_dep(curr_sp, *mem);
+ curr_sp = be_new_IncSP(arch_env->sp, irg, bl, curr_sp, BE_STACK_FRAME_SIZE_SHRINK, 0);
} else {
- const ia32_isa_t *isa = (ia32_isa_t *)env->isa;
- ia32_code_gen_t *cg = isa->cg;
- ir_mode *mode_bp = env->isa->bp->reg_class->mode;
- ir_graph *irg = current_ir_graph;
+ ir_mode *mode_bp = arch_env->bp->reg_class->mode;
if (ia32_cg_config.use_leave) {
ir_node *leave;
/* leave */
- leave = new_rd_ia32_Leave(NULL, irg, bl, curr_sp, curr_bp);
+ leave = new_rd_ia32_Leave(NULL, irg, bl, curr_bp);
set_ia32_flags(leave, arch_irn_flags_ignore);
curr_bp = new_r_Proj(irg, bl, leave, mode_bp, pn_ia32_Leave_frame);
curr_sp = new_r_Proj(irg, bl, leave, get_irn_mode(curr_sp), pn_ia32_Leave_stack);
} else {
- ir_node *noreg = ia32_new_NoReg_gp(cg);
ir_node *pop;
/* the old SP is not needed anymore (kill the proj) */
assert(is_Proj(curr_sp));
- be_kill_node(curr_sp);
+ kill_node(curr_sp);
/* copy ebp to esp */
curr_sp = be_new_Copy(&ia32_reg_classes[CLASS_ia32_gp], irg, bl, curr_bp);
- arch_set_irn_register(env->aenv, curr_sp, env->isa->sp);
+ arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
be_node_set_flags(curr_sp, BE_OUT_POS(0), arch_irn_flags_ignore);
/* pop ebp */
- pop = new_rd_ia32_Pop(NULL, env->irg, bl, noreg, noreg, *mem, curr_sp);
+ pop = new_rd_ia32_Pop(NULL, env->irg, bl, *mem, curr_sp);
set_ia32_flags(pop, arch_irn_flags_ignore);
curr_bp = new_r_Proj(irg, bl, pop, mode_bp, pn_ia32_Pop_res);
curr_sp = new_r_Proj(irg, bl, pop, get_irn_mode(curr_sp), pn_ia32_Pop_stack);
*mem = new_r_Proj(irg, bl, pop, mode_M, pn_ia32_Pop_M);
}
- arch_set_irn_register(env->aenv, curr_sp, env->isa->sp);
- arch_set_irn_register(env->aenv, curr_bp, env->isa->bp);
+ arch_set_irn_register(arch_env, curr_sp, arch_env->sp);
+ arch_set_irn_register(arch_env, curr_bp, arch_env->bp);
}
- be_abi_reg_map_set(reg_map, env->isa->sp, curr_sp);
- be_abi_reg_map_set(reg_map, env->isa->bp, curr_bp);
+ be_abi_reg_map_set(reg_map, arch_env->sp, curr_sp);
+ be_abi_reg_map_set(reg_map, arch_env->bp, curr_bp);
}
/**
*/
static void *ia32_abi_init(const be_abi_call_t *call, const arch_env_t *aenv, ir_graph *irg)
{
- ia32_abi_env_t *env = xmalloc(sizeof(env[0]));
- be_abi_call_flags_t fl = be_abi_call_get_flags(call);
+ ia32_abi_env_t *env = XMALLOC(ia32_abi_env_t);
+ be_abi_call_flags_t fl = be_abi_call_get_flags(call);
env->flags = fl.bits;
env->irg = irg;
env->aenv = aenv;
- env->isa = aenv->isa;
return env;
}
*
* @return The estimated cycle count for this operation
*/
-static int ia32_get_op_estimated_cost(const void *self, const ir_node *irn)
+static int ia32_get_op_estimated_cost(const ir_node *irn)
{
int cost;
ia32_op_type_t op_tp;
- (void) self;
if (is_Proj(irn))
return 0;
(we assume they are in cache), other memory operations cost 20
cycles.
*/
- if(is_ia32_use_frame(irn) ||
- (is_ia32_NoReg_GP(get_irn_n(irn, 0)) &&
- is_ia32_NoReg_GP(get_irn_n(irn, 1)))) {
+ if (is_ia32_use_frame(irn) || (
+ is_ia32_NoReg_GP(get_irn_n(irn, n_ia32_base)) &&
+ is_ia32_NoReg_GP(get_irn_n(irn, n_ia32_index))
+ )) {
cost += 5;
} else {
cost += 20;
* @param obstack The obstack to use for allocation of the returned nodes array
* @return The inverse operation or NULL if operation invertible
*/
-static arch_inverse_t *ia32_get_inverse(const void *self, const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obst) {
+static arch_inverse_t *ia32_get_inverse(const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obst) {
ir_graph *irg;
ir_mode *mode;
ir_mode *irn_mode;
ir_node *block, *noreg, *nomem;
dbg_info *dbg;
- (void) self;
/* we cannot invert non-ia32 irns */
if (! is_ia32_irn(irn))
*/
static int ia32_is_spillmode_compatible(const ir_mode *mode, const ir_mode *spillmode)
{
- if(mode_is_float(mode)) {
- return mode == spillmode;
- } else {
- return 1;
- }
+ return !mode_is_float(mode) || mode == spillmode;
}
/**
- * Check if irn can load it's operand at position i from memory (source addressmode).
- * @param self Pointer to irn ops itself
+ * Check if irn can load its operand at position i from memory (source addressmode).
* @param irn The irn to be checked
* @param i The operands position
* @return Non-Zero if operand can be loaded
*/
-static int ia32_possible_memory_operand(const void *self, const ir_node *irn, unsigned int i) {
- ir_node *op = get_irn_n(irn, i);
- const ir_mode *mode = get_irn_mode(op);
+static int ia32_possible_memory_operand(const ir_node *irn, unsigned int i)
+{
+ ir_node *op = get_irn_n(irn, i);
+ const ir_mode *mode = get_irn_mode(op);
const ir_mode *spillmode = get_spill_mode(op);
- (void) self;
- if (! is_ia32_irn(irn) || /* must be an ia32 irn */
- get_ia32_am_arity(irn) != ia32_am_binary || /* must be a binary operation TODO is this necessary? */
- get_ia32_op_type(irn) != ia32_Normal || /* must not already be a addressmode irn */
- ! (get_ia32_am_support(irn) & ia32_am_Source) || /* must be capable of source addressmode */
- ! ia32_is_spillmode_compatible(mode, spillmode) ||
- (i != n_ia32_binary_left && i != n_ia32_binary_right) || /* a "real" operand position must be requested */
- is_ia32_use_frame(irn)) /* must not already use frame */
+ if (!is_ia32_irn(irn) || /* must be an ia32 irn */
+ get_ia32_op_type(irn) != ia32_Normal || /* must not already be a addressmode irn */
+ !ia32_is_spillmode_compatible(mode, spillmode) ||
+ is_ia32_use_frame(irn)) /* must not already use frame */
return 0;
- if (i == n_ia32_binary_left) {
- const arch_register_req_t *req;
- if(!is_ia32_commutative(irn))
- return 0;
- /* we can't swap left/right for limited registers
- * (As this (currently) breaks constraint handling copies)
- */
- req = get_ia32_in_req(irn, n_ia32_binary_left);
- if(req->type & arch_register_req_type_limited) {
+ switch (get_ia32_am_support(irn)) {
+ case ia32_am_none:
return 0;
- }
- }
- return 1;
-}
+ case ia32_am_unary:
+ return i == n_ia32_unary_op;
-static void ia32_perform_memory_operand(const void *self, ir_node *irn,
- ir_node *spill, unsigned int i)
-{
- const ia32_irn_ops_t *ops = self;
- ia32_code_gen_t *cg = ops->cg;
+ case ia32_am_binary:
+ switch (i) {
+ case n_ia32_binary_left: {
+ const arch_register_req_t *req;
+ if (!is_ia32_commutative(irn))
+ return 0;
+
+ /* we can't swap left/right for limited registers
+ * (As this (currently) breaks constraint handling copies)
+ */
+ req = get_ia32_in_req(irn, n_ia32_binary_left);
+ if (req->type & arch_register_req_type_limited)
+ return 0;
+
+ return 1;
+ }
- assert(ia32_possible_memory_operand(self, irn, i) && "Cannot perform memory operand change");
+ case n_ia32_binary_right:
+ return 1;
- if (i == n_ia32_binary_left) {
- ia32_swap_left_right(irn);
+ default:
+ return 0;
+ }
+
+ default:
+ panic("Unknown AM type");
}
+}
+
+static void ia32_perform_memory_operand(ir_node *irn, ir_node *spill,
+ unsigned int i)
+{
+ ir_mode *load_mode;
+ ir_mode *dest_op_mode;
+
+ assert(ia32_possible_memory_operand(irn, i) && "Cannot perform memory operand change");
set_ia32_op_type(irn, ia32_AddrModeS);
- set_ia32_ls_mode(irn, get_irn_mode(get_irn_n(irn, i)));
+
+ load_mode = get_irn_mode(get_irn_n(irn, i));
+ dest_op_mode = get_ia32_ls_mode(irn);
+ if (get_mode_size_bits(load_mode) <= get_mode_size_bits(dest_op_mode)) {
+ set_ia32_ls_mode(irn, load_mode);
+ }
set_ia32_use_frame(irn);
set_ia32_need_stackent(irn);
- set_irn_n(irn, n_ia32_base, get_irg_frame(get_irn_irg(irn)));
- set_irn_n(irn, n_ia32_binary_right, ia32_get_admissible_noreg(cg, irn, n_ia32_binary_right));
- set_irn_n(irn, n_ia32_mem, spill);
-
- /* immediates are only allowed on the right side */
- if (i == n_ia32_binary_left && is_ia32_Immediate(get_irn_n(irn, n_ia32_binary_left))) {
+ if (i == n_ia32_binary_left &&
+ get_ia32_am_support(irn) == ia32_am_binary &&
+ /* immediates are only allowed on the right side */
+ !is_ia32_Immediate(get_irn_n(irn, n_ia32_binary_right))) {
ia32_swap_left_right(irn);
+ i = n_ia32_binary_right;
}
+
+ assert(is_NoMem(get_irn_n(irn, n_ia32_mem)));
+
+ set_irn_n(irn, n_ia32_base, get_irg_frame(get_irn_irg(irn)));
+ set_irn_n(irn, n_ia32_mem, spill);
+ set_irn_n(irn, i, ia32_get_admissible_noreg(ia32_current_cg, irn, i));
+ set_ia32_is_reload(irn);
}
static const be_abi_callbacks_t ia32_abi_callbacks = {
/* fill register allocator interface */
-static const arch_irn_ops_if_t ia32_irn_ops_if = {
+static const arch_irn_ops_t ia32_irn_ops = {
ia32_get_irn_reg_req,
ia32_set_irn_reg,
ia32_get_irn_reg,
ia32_perform_memory_operand,
};
-static ia32_irn_ops_t ia32_irn_ops = {
- &ia32_irn_ops_if,
- NULL
-};
-
-
-
/**************************************************
* _ _ __
* | | (_)/ _|
* |___/
**************************************************/
+static ir_entity *mcount = NULL;
+
+#define ID(s) new_id_from_chars(s, sizeof(s) - 1)
+
static void ia32_before_abi(void *self) {
lower_mode_b_config_t lower_mode_b_config = {
mode_Iu, /* lowered mode */
- mode_Bu, /* prefered mode for set */
+ mode_Bu, /* preferred mode for set */
0, /* don't lower direct compares */
};
ia32_code_gen_t *cg = self;
ir_lower_mode_b(cg->irg, &lower_mode_b_config);
if (cg->dump)
be_dump(cg->irg, "-lower_modeb", dump_ir_block_graph_sched);
+ if (cg->gprof) {
+ if (mcount == NULL) {
+ ir_type *tp = new_type_method(ID("FKT.mcount"), 0, 0);
+ mcount = new_entity(get_glob_type(), ID("mcount"), tp);
+ /* FIXME: enter the right ld_ident here */
+ set_entity_ld_ident(mcount, get_entity_ident(mcount));
+ set_entity_visibility(mcount, visibility_external_allocated);
+ }
+ instrument_initcall(cg->irg, mcount);
+ }
}
+transformer_t be_transformer = TRANSFORMER_DEFAULT;
+
/**
* Transforms the standard firm graph into
* an ia32 firm graph
static void ia32_prepare_graph(void *self) {
ia32_code_gen_t *cg = self;
- /* do local optimisations */
+ /* do local optimizations */
optimize_graph_df(cg->irg);
/* TODO: we often have dead code reachable through out-edges here. So for
if (cg->dump)
be_dump(cg->irg, "-pre_transform", dump_ir_block_graph_sched);
-#ifdef FIRM_GRGEN_BE
- /* used for examination purposes only
- * if(cg->dump)
- dump_irg_grgen(cg->irg, "-pre_transform");
- */
+ switch (be_transformer) {
+ case TRANSFORMER_DEFAULT:
+ /* transform remaining nodes into assembler instructions */
+ ia32_transform_graph(cg);
+ break;
- /* transform nodes into assembler instructions by PBQP magic */
- ia32_transform_graph_by_pbqp(cg);
+#ifdef FIRM_GRGEN_BE
+ case TRANSFORMER_PBQP:
+ case TRANSFORMER_RAND:
+ /* transform nodes into assembler instructions by PBQP magic */
+ ia32_transform_graph_by_pbqp(cg);
+ break;
#endif
- if (cg->dump)
- be_dump(cg->irg, "-after_pbqp_transform", dump_ir_block_graph_sched);
-
- /* transform remaining nodes into assembler instructions */
- ia32_transform_graph(cg);
+ default: panic("invalid transformer");
+ }
- /* do local optimisations (mainly CSE) */
+ /* do local optimizations (mainly CSE) */
optimize_graph_df(cg->irg);
if (cg->dump)
(void) self;
}
-static void turn_back_am(ir_node *node)
+ir_node *turn_back_am(ir_node *node)
{
ir_graph *irg = current_ir_graph;
dbg_info *dbgi = get_irn_dbg_info(node);
ir_node *base = get_irn_n(node, n_ia32_base);
ir_node *index = get_irn_n(node, n_ia32_index);
ir_node *mem = get_irn_n(node, n_ia32_mem);
- ir_node *noreg = ia32_new_NoReg_gp(ia32_current_cg);
- ir_node *load;
- ir_node *load_res;
- ir_node *mem_proj;
- const ir_edge_t *edge;
+ ir_node *noreg;
- load = new_rd_ia32_Load(dbgi, irg, block, base, index, mem);
- load_res = new_rd_Proj(dbgi, irg, block, load, mode_Iu, pn_ia32_Load_res);
+ ir_node *load = new_rd_ia32_Load(dbgi, irg, block, base, index, mem);
+ ir_node *load_res = new_rd_Proj(dbgi, irg, block, load, mode_Iu, pn_ia32_Load_res);
ia32_copy_am_attrs(load, node);
+ if (is_ia32_is_reload(node))
+ set_ia32_is_reload(load);
set_irn_n(node, n_ia32_mem, new_NoMem());
- switch (get_ia32_am_arity(node)) {
+ switch (get_ia32_am_support(node)) {
case ia32_am_unary:
set_irn_n(node, n_ia32_unary_op, load_res);
break;
case ia32_am_binary:
- if (is_ia32_Immediate(get_irn_n(node, n_ia32_Cmp_right))) {
- assert(is_ia32_Cmp(node) || is_ia32_Cmp8Bit(node) ||
- is_ia32_Test(node) || is_ia32_Test8Bit(node));
+ if (is_ia32_Immediate(get_irn_n(node, n_ia32_binary_right))) {
set_irn_n(node, n_ia32_binary_left, load_res);
} else {
set_irn_n(node, n_ia32_binary_right, load_res);
}
break;
- case ia32_am_ternary:
- set_irn_n(node, n_ia32_binary_right, load_res);
- break;
-
- default: break;
+ default:
+ panic("Unknown AM type");
}
- set_irn_n(node, n_ia32_base, noreg);
+ noreg = ia32_new_NoReg_gp(ia32_current_cg);
+ set_irn_n(node, n_ia32_base, noreg);
set_irn_n(node, n_ia32_index, noreg);
set_ia32_am_offs_int(node, 0);
set_ia32_am_sc(node, NULL);
/* rewire mem-proj */
if (get_irn_mode(node) == mode_T) {
- mem_proj = NULL;
+ const ir_edge_t *edge;
foreach_out_edge(node, edge) {
ir_node *out = get_edge_src_irn(edge);
- if(get_Proj_proj(out) == pn_ia32_mem) {
- mem_proj = out;
+ if (get_irn_mode(out) == mode_M) {
+ set_Proj_pred(out, load);
+ set_Proj_proj(out, pn_ia32_Load_M);
break;
}
}
-
- if(mem_proj != NULL) {
- set_Proj_pred(mem_proj, load);
- set_Proj_proj(mem_proj, pn_ia32_Load_M);
- }
}
set_ia32_op_type(node, ia32_Normal);
if (sched_is_scheduled(node))
sched_add_before(node, load);
+
+ return load_res;
}
static ir_node *flags_remat(ir_node *node, ir_node *after)
{
/* we should turn back source address mode when rematerializing nodes */
- ia32_op_type_t type = get_ia32_op_type(node);
+ ia32_op_type_t type;
ir_node *block;
ir_node *copy;
block = get_nodes_block(after);
}
+ type = get_ia32_op_type(node);
switch (type) {
- case ia32_AddrModeS: turn_back_am(node); break;
+ case ia32_AddrModeS:
+ turn_back_am(node);
+ break;
case ia32_AddrModeD:
/* TODO implement this later... */
/**
* Called before the register allocator.
- * Calculate a block schedule here. We need it for the x87
- * simulator and the emitter.
*/
static void ia32_before_ra(void *self) {
ia32_code_gen_t *cg = self;
new_op = new_rd_ia32_vfld(dbg, irg, block, ptr, noreg, mem, spillmode);
}
else if (get_mode_size_bits(spillmode) == 128) {
- // Reload 128 bit sse registers
+ /* Reload 128 bit SSE registers */
new_op = new_rd_ia32_xxLoad(dbg, irg, block, ptr, noreg, mem);
}
else
set_ia32_ls_mode(new_op, spillmode);
set_ia32_frame_ent(new_op, ent);
set_ia32_use_frame(new_op);
+ set_ia32_is_reload(new_op);
DBG_OPT_RELOAD2LD(node, new_op);
else
store = new_rd_ia32_vfst(dbg, irg, block, ptr, noreg, nomem, val, mode);
} else if (get_mode_size_bits(mode) == 128) {
- // Spill 128 bit SSE registers
+ /* Spill 128 bit SSE registers */
store = new_rd_ia32_xxStore(dbg, irg, block, ptr, noreg, nomem, val);
} else if (get_mode_size_bits(mode) == 8) {
store = new_rd_ia32_Store8Bit(dbg, irg, block, ptr, noreg, nomem, val);
set_ia32_ls_mode(store, mode);
set_ia32_frame_ent(store, ent);
set_ia32_use_frame(store);
+ set_ia32_is_spill(store);
SET_IA32_ORIG_NODE(store, ia32_get_old_node_name(cg, node));
DBG_OPT_SPILL2ST(node, store);
ir_node *noreg = ia32_new_NoReg_gp(cg);
ir_node *frame = get_irg_frame(irg);
- ir_node *push = new_rd_ia32_Push(dbg, irg, block, frame, noreg, mem, sp, noreg);
+ ir_node *push = new_rd_ia32_Push(dbg, irg, block, frame, noreg, mem, noreg, sp);
set_ia32_frame_ent(push, ent);
set_ia32_use_frame(push);
set_ia32_op_type(push, ia32_AddrModeS);
set_ia32_ls_mode(push, mode_Is);
+ set_ia32_is_spill(push);
sched_add_before(schedpoint, push);
return push;
ir_node *noreg = ia32_new_NoReg_gp(cg);
ir_node *frame = get_irg_frame(irg);
- ir_node *pop = new_rd_ia32_Pop(dbg, irg, block, frame, noreg, new_NoMem(), sp);
+ ir_node *pop = new_rd_ia32_PopMem(dbg, irg, block, frame, noreg, new_NoMem(), sp);
set_ia32_frame_ent(pop, ent);
set_ia32_use_frame(pop);
set_ia32_op_type(pop, ia32_AddrModeD);
set_ia32_ls_mode(pop, mode_Is);
+ set_ia32_is_reload(pop);
sched_add_before(schedpoint, pop);
}
/**
- * Transform memperm, currently we do this the ugly way and produce
+ * Transform MemPerm, currently we do this the ugly way and produce
* push/pop into/from memory cascades. This is possible without using
* any registers.
*/
transform_to_Load(cg, node);
} else if (be_is_Spill(node)) {
transform_to_Store(cg, node);
- } else if(be_is_MemPerm(node)) {
+ } else if (be_is_MemPerm(node)) {
transform_MemPerm(cg, node);
}
}
if (is_ia32_need_stackent(node) || is_ia32_Load(node)) {
const ir_mode *mode = get_ia32_ls_mode(node);
const ia32_attr_t *attr = get_ia32_attr_const(node);
- int align = get_mode_size_bytes(mode);
+ int align;
+
+ if (is_ia32_is_reload(node)) {
+ mode = get_spill_mode_mode(mode);
+ }
if(attr->data.need_64bit_stackent) {
mode = mode_Ls;
if(attr->data.need_32bit_stackent) {
mode = mode_Is;
}
+ align = get_mode_size_bytes(mode);
be_node_needs_frame_entity(env, node, mode, align);
} else if (is_ia32_vfild(node) || is_ia32_xLoad(node)
|| is_ia32_vfld(node)) {
is_ia32_xStoreSimple(node) ||
is_ia32_vfst(node) ||
is_ia32_vfist(node) ||
+ is_ia32_vfisttp(node) ||
is_ia32_FnstCW(node));
#endif
}
free(cg);
}
+/**
+ * Returns the node representing the PIC base.
+ */
static ir_node *ia32_get_pic_base(void *self) {
ir_node *block;
ia32_code_gen_t *cg = self;
ir_node *get_eip = cg->get_eip;
- if(get_eip != NULL)
+ if (get_eip != NULL)
return get_eip;
-
block = get_irg_start_block(cg->irg);
get_eip = new_rd_ia32_GetEIP(NULL, cg->irg, block);
cg->get_eip = get_eip;
- add_irn_dep(get_eip, get_irg_frame(cg->irg));
-
+ be_dep_on_frame(get_eip);
return get_eip;
}
static const arch_code_generator_if_t ia32_code_gen_if = {
ia32_cg_init,
- ia32_get_pic_base,
+ ia32_get_pic_base, /* return node used as base in pic code addresses */
ia32_before_abi, /* before abi introduce hook */
ia32_prepare_graph,
NULL, /* spill */
* Initializes a IA32 code generator.
*/
static void *ia32_cg_init(be_irg_t *birg) {
- ia32_isa_t *isa = (ia32_isa_t *)birg->main_env->arch_env->isa;
- ia32_code_gen_t *cg = xcalloc(1, sizeof(*cg));
+ ia32_isa_t *isa = (ia32_isa_t *)birg->main_env->arch_env;
+ ia32_code_gen_t *cg = XMALLOCZ(ia32_code_gen_t);
cg->impl = &ia32_code_gen_if;
cg->irg = birg->irg;
cg->reg_set = new_set(ia32_cmp_irn_reg_assoc, 1024);
- cg->arch_env = birg->main_env->arch_env;
cg->isa = isa;
+ cg->arch_env = birg->main_env->arch_env;
cg->birg = birg;
cg->blk_sched = NULL;
cg->dump = (birg->main_env->options->dump_flags & DUMP_BE) ? 1 : 0;
+ cg->gprof = (birg->main_env->options->gprof) ? 1 : 0;
+
+ if (cg->gprof) {
+ /* Linux gprof implementation needs base pointer */
+ birg->main_env->options->omit_fp = 0;
+ }
/* enter it */
isa->cg = cg;
cur_reg_set = cg->reg_set;
- ia32_irn_ops.cg = cg;
-
assert(ia32_current_cg == NULL);
ia32_current_cg = cg;
&ia32_gp_regs[REG_ESP], /* stack pointer register */
&ia32_gp_regs[REG_EBP], /* base pointer register */
-1, /* stack direction */
+ 2, /* power of two stack alignment, 2^2 == 4 */
NULL, /* main environment */
7, /* costs for a spill instruction */
5, /* costs for a reload instruction */
#endif
};
+static void init_asm_constraints(void)
+{
+ be_init_default_asm_constraint_flags();
+
+ asm_constraint_flags['a'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['b'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['c'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['d'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['D'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['S'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['Q'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['q'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['A'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['l'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['R'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['r'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['p'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['f'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['t'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['u'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['Y'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['X'] = ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER;
+ asm_constraint_flags['n'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+ asm_constraint_flags['g'] = ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE;
+
+ /* no support for autodecrement/autoincrement */
+ asm_constraint_flags['<'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['>'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ /* no float consts */
+ asm_constraint_flags['E'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['F'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ /* makes no sense on x86 */
+ asm_constraint_flags['s'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ /* no support for sse consts yet */
+ asm_constraint_flags['C'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ /* no support for x87 consts yet */
+ asm_constraint_flags['G'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ /* no support for mmx registers yet */
+ asm_constraint_flags['y'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ /* not available in 32bit mode */
+ asm_constraint_flags['Z'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+ asm_constraint_flags['e'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+
+ /* no code yet to determine register class needed... */
+ asm_constraint_flags['X'] = ASM_CONSTRAINT_FLAG_NO_SUPPORT;
+}
+
/**
* Initializes the backend ISA.
*/
-static void *ia32_init(FILE *file_handle) {
+static arch_env_t *ia32_init(FILE *file_handle) {
static int inited = 0;
ia32_isa_t *isa;
+ int i, n;
if (inited)
return NULL;
set_tarval_output_modes();
- isa = xmalloc(sizeof(*isa));
+ isa = XMALLOC(ia32_isa_t);
memcpy(isa, &ia32_isa_template, sizeof(*isa));
if(mode_fpcw == NULL) {
}
ia32_register_init();
- ia32_create_opcodes();
+ ia32_create_opcodes(&ia32_irn_ops);
be_emit_init(file_handle);
isa->regs_16bit = pmap_create();
ia32_build_8bit_reg_map_high(isa->regs_8bit_high);
#ifndef NDEBUG
- isa->name_obst = xmalloc(sizeof(*isa->name_obst));
+ isa->name_obst = XMALLOC(struct obstack);
obstack_init(isa->name_obst);
#endif /* NDEBUG */
intrinsic_env.isa = isa;
ia32_handle_intrinsics();
+ /* emit asm includes */
+ n = get_irp_n_asms();
+ for (i = 0; i < n; ++i) {
+ be_emit_cstring("#APP\n");
+ be_emit_ident(get_irp_asm(i));
+ be_emit_cstring("\n#NO_APP\n");
+ }
+
/* needed for the debug support */
be_gas_emit_switch_section(GAS_SECTION_TEXT);
be_emit_cstring(".Ltext0:\n");
*/
inc_master_type_visited();
- return isa;
+ return &isa->arch_env;
}
ia32_isa_t *isa = self;
/* emit now all global declarations */
- be_gas_emit_decls(isa->arch_isa.main_env, 1);
+ be_gas_emit_decls(isa->arch_env.main_env, 1);
pmap_destroy(isa->regs_16bit);
pmap_destroy(isa->regs_8bit);
ir_mode *mode;
unsigned cc;
int n, i, regnum;
+ int pop_amount = 0;
be_abi_call_flags_t call_flags = be_abi_call_get_flags(abi);
+
(void) self;
/* set abi flags for calls */
call_flags.bits.store_args_sequential = 0;
/* call_flags.bits.try_omit_fp not changed: can handle both settings */
call_flags.bits.fp_free = 0; /* the frame pointer is fixed in IA32 */
- call_flags.bits.call_has_imm = 1; /* IA32 calls can have immediate address */
+ call_flags.bits.call_has_imm = 0; /* No call immediates, we handle this by ourselves */
/* set parameter passing style */
be_abi_call_set_flags(abi, call_flags, &ia32_abi_callbacks);
cc = cc_cdecl_set;
} else {
cc = get_method_calling_convention(method_type);
- if (get_method_additional_properties(method_type) & mtp_property_private
- && (ia32_cg_config.optimize_cc)) {
+ if (get_method_additional_properties(method_type) & mtp_property_private &&
+ ia32_cg_config.optimize_cc) {
/* set the calling conventions to register parameter */
cc = (cc & ~cc_bits) | cc_reg_param;
}
/* we have to pop the shadow parameter ourself for compound calls */
if( (get_method_calling_convention(method_type) & cc_compound_ret)
&& !(cc & cc_reg_param)) {
- be_abi_call_set_pop(abi, get_mode_size_bytes(mode_P_data));
+ pop_amount += get_mode_size_bytes(mode_P_data);
}
n = get_method_n_params(method_type);
/* Micro optimisation: if the mode is shorter than 4 bytes, load 4 bytes.
* movl has a shorter opcode than mov[sz][bw]l */
ir_mode *load_mode = mode;
- if (mode != NULL && get_mode_size_bytes(mode) < 4) load_mode = mode_Iu;
+
+ if (mode != NULL) {
+ unsigned size = get_mode_size_bytes(mode);
+
+ if (cc & cc_callee_clear_stk) {
+ pop_amount += (size + 3U) & ~3U;
+ }
+
+ if (size < 4) load_mode = mode_Iu;
+ }
+
be_abi_call_param_stack(abi, i, load_mode, 4, 0, 0);
}
}
+ be_abi_call_set_pop(abi, pop_amount);
+
/* set return registers */
n = get_method_n_ress(method_type);
}
}
-
-static const void *ia32_get_irn_ops(const arch_irn_handler_t *self,
- const ir_node *irn)
-{
- (void) self;
- (void) irn;
- return &ia32_irn_ops;
-}
-
-const arch_irn_handler_t ia32_irn_handler = {
- ia32_get_irn_ops
-};
-
-const arch_irn_handler_t *ia32_get_irn_handler(const void *self)
-{
- (void) self;
- return &ia32_irn_handler;
-}
-
int ia32_to_appear_in_schedule(void *block_env, const ir_node *irn)
{
(void) block_env;
* Returns the estimated execution time of an ia32 irn.
*/
static sched_timestep_t ia32_sched_exectime(void *env, const ir_node *irn) {
- const arch_env_t *arch_env = env;
- return is_ia32_irn(irn) ? ia32_get_op_estimated_cost(arch_get_irn_ops(arch_env, irn), irn) : 1;
+ (void) env;
+ return is_ia32_irn(irn) ? ia32_get_op_estimated_cost(irn) : 1;
}
list_sched_selector_t ia32_sched_selector;
if (is_ia32_irn(irn)) {
ret = get_ia32_exec_units(irn);
- }
- else if (is_be_node(irn)) {
- if (be_is_Call(irn) || be_is_Return(irn)) {
+ } else if (is_be_node(irn)) {
+ if (be_is_Return(irn)) {
ret = _units_callret;
- }
- else if (be_is_Barrier(irn)) {
+ } else if (be_is_Barrier(irn)) {
ret = _units_dummy;
- }
- else {
- ret = _units_other;
+ } else {
+ ret = _units_other;
}
}
else {
return NULL;
}
+static void ia32_mark_remat(const void *self, ir_node *node) {
+ (void) self;
+ if (is_ia32_irn(node)) {
+ set_ia32_is_remat(node);
+ }
+}
+
/**
* Allows or disallows the creation of Psi nodes for the given Phi nodes.
* @return 1 if allowed, 0 otherwise
static int ia32_is_psi_allowed(ir_node *sel, ir_node *phi_list, int i, int j)
{
ir_node *phi;
-
- (void)sel;
- (void)i;
- (void)j;
-
- if(!ia32_cg_config.use_cmov) {
- /* TODO: we could still handle abs(x)... */
- return 0;
- }
+ ir_node *cmp = NULL;
/* we can't handle psis with 64bit compares yet */
- if(is_Proj(sel)) {
- ir_node *pred = get_Proj_pred(sel);
- if(is_Cmp(pred)) {
- ir_node *left = get_Cmp_left(pred);
+ if (is_Proj(sel)) {
+ cmp = get_Proj_pred(sel);
+ if (is_Cmp(cmp)) {
+ ir_node *left = get_Cmp_left(cmp);
ir_mode *cmp_mode = get_irn_mode(left);
- if(!mode_is_float(cmp_mode) && get_mode_size_bits(cmp_mode) > 32)
+ if (!mode_is_float(cmp_mode) && get_mode_size_bits(cmp_mode) > 32)
return 0;
+ } else {
+ cmp = NULL;
}
}
- /* check the Phi nodes */
- for (phi = phi_list; phi; phi = get_irn_link(phi)) {
- ir_mode *mode = get_irn_mode(phi);
+ if (ia32_cg_config.use_cmov) {
+ if (ia32_cg_config.use_sse2 && cmp != NULL) {
+ pn_Cmp pn = get_Proj_proj(sel);
+ ir_node *cl = get_Cmp_left(cmp);
+ ir_node *cr = get_Cmp_right(cmp);
+
+ /* check the Phi nodes: no 64bit and no floating point cmov */
+ for (phi = phi_list; phi; phi = get_Phi_next(phi)) {
+ ir_mode *mode = get_irn_mode(phi);
+
+ if (mode_is_float(mode)) {
+ /* check for Min, Max */
+ ir_node *t = get_Phi_pred(phi, i);
+ ir_node *f = get_Phi_pred(phi, j);
+ int res = 0;
+
+ /* SSE2 supports Min & Max */
+ if (pn == pn_Cmp_Lt || pn == pn_Cmp_Le || pn == pn_Cmp_Ge || pn == pn_Cmp_Gt) {
+ if (cl == t && cr == f) {
+ /* Psi(a <=/>= b, a, b) => MIN, MAX */
+ res = 1;
+ } else if (cl == f && cr == t) {
+ /* Psi(a <=/>= b, b, a) => MAX, MIN */
+ res = 1;
+ }
+ }
+ if (! res)
+ return 0;
+
+ } else if (get_mode_size_bits(mode) > 32)
+ return 0;
+ }
+ } else {
+ /* check the Phi nodes: no 64bit and no floating point cmov */
+ for (phi = phi_list; phi; phi = get_Phi_next(phi)) {
+ ir_mode *mode = get_irn_mode(phi);
- if (mode_is_float(mode) || get_mode_size_bits(mode) > 32)
+ if (mode_is_float(mode) || get_mode_size_bits(mode) > 32)
+ return 0;
+ }
+ }
+
+ return 1;
+ } else {
+ ir_node *cl, *cr;
+ pn_Cmp pn;
+
+ /* No cmov, only some special cases */
+ if (cmp == NULL)
return 0;
+
+ /* Now some supported cases here */
+ pn = get_Proj_proj(sel);
+ cl = get_Cmp_left(cmp);
+ cr = get_Cmp_right(cmp);
+
+ for (phi = phi_list; phi; phi = get_Phi_next(phi)) {
+ ir_mode *mode = get_irn_mode(phi);
+ int res = 0;
+ ir_node *t, *f;
+
+ t = get_Phi_pred(phi, i);
+ f = get_Phi_pred(phi, j);
+
+ /* no floating point and no 64bit yet */
+ if (mode_is_float(mode) || get_mode_size_bits(mode) > 32)
+ return 0;
+
+ if (is_Const(t) && is_Const(f)) {
+ if ((is_Const_null(t) && is_Const_one(f)) || (is_Const_one(t) && is_Const_null(f))) {
+ /* always support Psi(x, C1, C2) */
+ res = 1;
+ }
+ } else if (pn == pn_Cmp_Lt || pn == pn_Cmp_Le || pn == pn_Cmp_Ge || pn == pn_Cmp_Gt) {
+ if (0) {
+#if 0
+ } else if (cl == t && cr == f) {
+ /* Psi(a <=/>= b, a, b) => Min, Max */
+ res = 1;
+ } else if (cl == f && cr == t) {
+ /* Psi(a <=/>= b, b, a) => Max, Min */
+ res = 1;
+#endif
+ } else if ((pn & pn_Cmp_Gt) && !mode_is_signed(mode) &&
+ is_Const(f) && is_Const_null(f) && is_Sub(t) &&
+ get_Sub_left(t) == cl && get_Sub_right(t) == cr) {
+ /* Psi(a >=u b, a - b, 0) unsigned Doz */
+ res = 1;
+ } else if ((pn & pn_Cmp_Lt) && !mode_is_signed(mode) &&
+ is_Const(t) && is_Const_null(t) && is_Sub(f) &&
+ get_Sub_left(f) == cl && get_Sub_right(f) == cr) {
+ /* Psi(a <=u b, 0, a - b) unsigned Doz */
+ res = 1;
+ } else if (is_Const(cr) && is_Const_null(cr)) {
+ if (cl == t && is_Minus(f) && get_Minus_op(f) == cl) {
+ /* Psi(a <=/>= 0 ? a : -a) Nabs/Abs */
+ res = 1;
+ } else if (cl == f && is_Minus(t) && get_Minus_op(t) == cl) {
+ /* Psi(a <=/>= 0 ? -a : a) Abs/Nabs */
+ res = 1;
+ }
+ }
+ }
+ if (! res)
+ return 0;
+ }
+ /* all checks passed */
+ return 1;
}
+ return 0;
+}
- return 1;
+static asm_constraint_flags_t ia32_parse_asm_constraint(const void *self, const char **c)
+{
+ (void) self;
+ (void) c;
+
+ /* we already added all our simple flags to the flags modifier list in
+ * init, so this flag we don't know. */
+ return ASM_CONSTRAINT_FLAG_INVALID;
+}
+
+static int ia32_is_valid_clobber(const void *self, const char *clobber)
+{
+ (void) self;
+
+ return ia32_get_clobber_register(clobber) != NULL;
}
/**
static backend_params p = {
1, /* need dword lowering */
1, /* support inline assembly */
+ 0, /* no immediate floating point mode. */
NULL, /* no additional opcodes */
NULL, /* will be set later */
ia32_create_intrinsic_fkt,
&intrinsic_env, /* context for ia32_create_intrinsic_fkt */
NULL, /* will be set below */
+ NULL /* will be set below */
};
ia32_setup_cg_config();
+ /* doesn't really belong here, but this is the earliest place the backend
+ * is called... */
+ init_asm_constraints();
+
p.dep_param = &ad;
p.if_conv_info = &ifconv;
return &p;
(int*) &be_gas_flavour, gas_items
};
+static const lc_opt_enum_int_items_t transformer_items[] = {
+ { "default", TRANSFORMER_DEFAULT },
+#ifdef FIRM_GRGEN_BE
+ { "pbqp", TRANSFORMER_PBQP },
+ { "random", TRANSFORMER_RAND },
+#endif
+ { NULL, 0 }
+};
+
+static lc_opt_enum_int_var_t transformer_var = {
+ (int*)&be_transformer, transformer_items
+};
+
static const lc_opt_table_entry_t ia32_options[] = {
LC_OPT_ENT_ENUM_INT("gasmode", "set the GAS compatibility mode", &gas_var),
+ LC_OPT_ENT_ENUM_INT("transformer", "the transformer used for code selection", &transformer_var),
+ LC_OPT_ENT_INT("stackalign", "set power of two stack alignment for calls",
+ &ia32_isa_template.arch_env.stack_alignment),
LC_OPT_LAST
};
ia32_get_reg_class,
ia32_get_reg_class_for_mode,
ia32_get_call_abi,
- ia32_get_irn_handler,
ia32_get_code_generator_if,
ia32_get_list_sched_selector,
ia32_get_ilp_sched_selector,
ia32_get_allowed_execution_units,
ia32_get_machine,
ia32_get_irg_list,
+ ia32_mark_remat,
+ ia32_parse_asm_constraint,
+ ia32_is_valid_clobber
};
void ia32_init_emitter(void);
projects / libfirm / blobdiff