#include "irtools.h"
#include "iroptimize.h"
#include "instrument.h"
+#include "iropt_t.h"
#include "../beabi.h"
#include "../beirg.h"
{
#define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
if (! between_type) {
- ir_type *old_bp_type = new_type_primitive(IDENT("bp"), mode_Iu);
- ir_type *ret_addr_type = new_type_primitive(IDENT("return_addr"), mode_Iu);
+ ir_type *old_bp_type = new_type_primitive(mode_Iu);
+ ir_type *ret_addr_type = new_type_primitive(mode_Iu);
between_type = new_type_struct(IDENT("ia32_between_type"));
old_bp_ent = new_entity(between_type, IDENT("old_bp"), old_bp_type);
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);
+ ir_type *tp = new_type_method(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);
+ set_entity_visibility(mcount, ir_visibility_external);
}
instrument_initcall(cg->irg, mcount);
}
be_emit_cstring(".Ltext0:\n");
be_emit_write_line();
- /* we mark referenced global entities, so we can only emit those which
- * are actually referenced. (Note: you mustn't use the type visited flag
- * elsewhere in the backend)
- */
- inc_master_type_visited();
-
return &isa->arch_env;
}
ia32_isa_t *isa = self;
/* emit now all global declarations */
- be_gas_emit_decls(isa->arch_env.main_env, 1);
+ be_gas_emit_decls(isa->arch_env.main_env);
pmap_destroy(isa->regs_16bit);
pmap_destroy(isa->regs_8bit);
}
/**
- * Check for Abs or -Abs.
+ * Check if Mux(sel, t, f) would represent an Abs (or -Abs).
*/
-static int psi_is_Abs_or_Nabs(ir_node *cmp, ir_node *sel, ir_node *t, ir_node *f)
+static bool mux_is_abs(ir_node *sel, ir_node *mux_true, ir_node *mux_false)
{
- ir_node *l, *r;
+ ir_node *cmp_left;
+ ir_node *cmp_right;
+ ir_node *cmp;
pn_Cmp pnc;
- if (cmp == NULL)
- return 0;
+ if (!is_Proj(sel))
+ return false;
+ cmp = get_Proj_pred(sel);
+ if (!is_Cmp(cmp))
+ return false;
/* must be <, <=, >=, > */
pnc = get_Proj_proj(sel);
- if (pnc != pn_Cmp_Ge && pnc != pn_Cmp_Gt &&
- pnc != pn_Cmp_Le && pnc != pn_Cmp_Lt)
- return 0;
+ switch (pnc) {
+ case pn_Cmp_Ge:
+ case pn_Cmp_Gt:
+ case pn_Cmp_Le:
+ case pn_Cmp_Lt:
+ case pn_Cmp_Uge:
+ case pn_Cmp_Ug:
+ case pn_Cmp_Ul:
+ case pn_Cmp_Ule:
+ break;
+ default:
+ return false;
+ }
- l = get_Cmp_left(cmp);
- r = get_Cmp_right(cmp);
+ if (!is_negated_value(mux_true, mux_false))
+ return false;
/* must be x cmp 0 */
- if ((l != t && l != f) || !is_Const(r) || !is_Const_null(r))
+ cmp_right = get_Cmp_right(cmp);
+ if (!is_Const(cmp_right) || !is_Const_null(cmp_right))
return 0;
- if ((!is_Minus(t) || get_Minus_op(t) != f) &&
- (!is_Minus(f) || get_Minus_op(f) != t))
- return 0;
- return 1;
+ cmp_left = get_Cmp_left(cmp);
+ if (cmp_left != mux_true && cmp_left != mux_false)
+ return false;
+
+ return true;
}
/**
- * Check for Abs only
+ * Check if Mux(sel, mux_true, mux_false) would represent a Max or Min operation
*/
-static int psi_is_Abs(ir_node *cmp, ir_node *sel, ir_node *t, ir_node *f)
+static bool mux_is_float_min_max(ir_node *sel, ir_node *mux_true,
+ ir_node *mux_false)
{
- ir_node *l, *r;
+ ir_node *cmp_l;
+ ir_node *cmp_r;
+ ir_node *cmp;
pn_Cmp pnc;
- if (cmp == NULL)
- return 0;
-
- /* must be <, <=, >=, > */
+ if (!is_Proj(sel))
+ return false;
+ cmp = get_Proj_pred(sel);
+ if (!is_Cmp(cmp))
+ return false;
+
+ cmp_l = get_Cmp_left(cmp);
+ cmp_r = get_Cmp_right(cmp);
+ if (!mode_is_float(get_irn_mode(cmp_l)))
+ return false;
+
+ /* check for min/max. They're defined as (C-Semantik):
+ * min(a, b) = a < b ? a : b
+ * or min(a, b) = a <= b ? a : b
+ * max(a, b) = a > b ? a : b
+ * or max(a, b) = a >= b ? a : b
+ * (Note we only handle float min/max here)
+ */
pnc = get_Proj_proj(sel);
- if (pnc != pn_Cmp_Ge && pnc != pn_Cmp_Gt &&
- pnc != pn_Cmp_Le && pnc != pn_Cmp_Lt)
- return 0;
+ switch (pnc) {
+ case pn_Cmp_Ge:
+ case pn_Cmp_Gt:
+ /* this is a max */
+ if (cmp_l == mux_true && cmp_r == mux_false)
+ return true;
+ break;
+ case pn_Cmp_Le:
+ case pn_Cmp_Lt:
+ /* this is a min */
+ if (cmp_l == mux_true && cmp_r == mux_false)
+ return true;
+ break;
+ case pn_Cmp_Uge:
+ case pn_Cmp_Ug:
+ /* this is a min */
+ if (cmp_l == mux_false && cmp_r == mux_true)
+ return true;
+ break;
+ case pn_Cmp_Ule:
+ case pn_Cmp_Ul:
+ /* this is a max */
+ if (cmp_l == mux_false && cmp_r == mux_true)
+ return true;
+ break;
- l = get_Cmp_left(cmp);
- r = get_Cmp_right(cmp);
+ default:
+ break;
+ }
- /* must be x cmp 0 */
- if ((l != t && l != f) || !is_Const(r) || !is_Const_null(r))
- return 0;
+ return false;
+}
- if ((!is_Minus(t) || get_Minus_op(t) != f) &&
- (!is_Minus(f) || get_Minus_op(f) != t))
- return 0;
+static bool mux_is_set(ir_node *sel, ir_node *mux_true, ir_node *mux_false)
+{
+ ir_mode *mode = get_irn_mode(mux_true);
+ (void) sel;
- if (pnc & pn_Cmp_Gt) {
- /* x >= 0 ? -x : x is NABS */
- if (is_Minus(t))
- return 0;
- } else {
- /* x < 0 ? x : -x is NABS */
- if (is_Minus(f))
- return 0;
+ if (!mode_is_int(mode) && !mode_is_reference(mode)
+ && mode != mode_b)
+ return false;
+
+ if (is_Const(mux_true) && is_Const(mux_false)) {
+ /* we can create a set plus up two 3 instructions for any combination of constants */
+ return true;
}
- return 1;
+
+ return false;
}
+static bool mux_is_float_const_const(ir_node *sel, ir_node *mux_true,
+ ir_node *mux_false)
+{
+ (void) sel;
-/**
- * Allows or disallows the creation of Mux nodes for the given Phi nodes.
- *
- * @param sel A selector of a Cond.
- * @param phi_list List of Phi nodes about to be converted (linked via get_Phi_next() field)
- * @param i First data predecessor involved in if conversion
- * @param j Second data predecessor involved in if conversion
- *
- * @return 1 if allowed, 0 otherwise
- */
-static int ia32_is_mux_allowed(ir_node *sel, ir_node *phi_list, int i, int j)
+ if (!mode_is_float(get_irn_mode(mux_true)))
+ return false;
+
+ return is_Const(mux_true) && is_Const(mux_false);
+}
+
+static bool mux_is_doz(ir_node *sel, ir_node *mux_true, ir_node *mux_false)
{
- ir_node *phi;
ir_node *cmp;
- pn_Cmp pn;
- ir_node *cl, *cr;
-
- /* we can't handle Muxs with 64bit compares yet */
- 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) {
- /* 64bit Abs IS supported */
- for (phi = phi_list; phi; phi = get_Phi_next(phi)) {
- ir_node *t = get_Phi_pred(phi, i);
- ir_node *f = get_Phi_pred(phi, j);
-
- if (! psi_is_Abs(cmp, sel, t, f))
- return 0;
- }
- return 1;
- }
- } else {
- /* we do not support nodes without Cmp yet */
- return 0;
- }
- } else {
- /* we do not support nodes without Cmp yet */
- return 0;
+ ir_node *cmp_left;
+ ir_node *cmp_right;
+ ir_mode *mode;
+ long pn;
+
+ if (!is_Proj(sel))
+ return false;
+
+ cmp = get_Proj_pred(sel);
+ if (!is_Cmp(cmp))
+ return false;
+
+ mode = get_irn_mode(mux_true);
+ if (mode_is_signed(mode) || mode_is_float(mode))
+ return false;
+
+ pn = get_Proj_proj(sel);
+ cmp_left = get_Cmp_left(cmp);
+ cmp_right = get_Cmp_right(cmp);
+ if ((pn & pn_Cmp_Gt) &&
+ is_Const(mux_false) && is_Const_null(mux_false) && is_Sub(mux_true) &&
+ get_Sub_left(mux_true) == cmp_left &&
+ get_Sub_right(mux_true) == cmp_right) {
+ /* Mux(a >=u b, a - b, 0) unsigned Doz */
+ return true;
+ }
+ if ((pn & pn_Cmp_Lt) &&
+ is_Const(mux_true) && is_Const_null(mux_true) && is_Sub(mux_false) &&
+ get_Sub_left(mux_false) == cmp_left &&
+ get_Sub_right(mux_false) == cmp_right) {
+ /* Mux(a <=u b, 0, a - b) unsigned Doz */
+ return true;
}
- pn = get_Proj_proj(sel);
- cl = get_Cmp_left(cmp);
- cr = get_Cmp_right(cmp);
-
- if (ia32_cg_config.use_cmov) {
- if (ia32_cg_config.use_sse2) {
- /* 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);
-
- /* 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) {
- /* Mux(a <=/>= b, a, b) => MIN, MAX */
- continue;
- } else if (cl == f && cr == t) {
- /* Mux(a <=/>= b, b, a) => MAX, MIN */
- continue;
- }
- }
- return 0;
- } else if (get_mode_size_bits(mode) > 32) {
- /* no 64bit cmov */
- 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)) {
- ir_node *t = get_Phi_pred(phi, i);
- ir_node *f = get_Phi_pred(phi, j);
-
- /* always support Mux(!float, C1, C2) */
- if (is_Const(t) && is_Const(f) && !mode_is_float(get_irn_mode(cl))) {
- switch (be_transformer) {
- case TRANSFORMER_DEFAULT:
- /* always support Mux(!float, C1, C2) */
- continue;
-#ifdef FIRM_GRGEN_BE
- case TRANSFORMER_PBQP:
- case TRANSFORMER_RAND:
- /* no support for Mux(*, C1, C2) */
- return 0;
-#endif
- default:
- panic("invalid transformer");
- }
- }
- /* only abs or nabs supported */
- if (! psi_is_Abs_or_Nabs(cmp, sel, t, f))
- return 0;
- } else if (get_mode_size_bits(mode) > 32)
- return 0;
- }
- }
+ return false;
+}
- return 1;
- } else { /* No Cmov, only some special cases */
-
- /* Now some supported cases here */
- for (phi = phi_list; phi; phi = get_Phi_next(phi)) {
- ir_mode *mode = get_irn_mode(phi);
- ir_node *t, *f;
-
- t = get_Phi_pred(phi, i);
- f = get_Phi_pred(phi, j);
-
- if (mode_is_float(mode)) {
- /* always support Mux(!float, C1, C2) */
- if (is_Const(t) && is_Const(f) &&
- !mode_is_float(get_irn_mode(cl))) {
- switch (be_transformer) {
- case TRANSFORMER_DEFAULT:
- /* always support Mux(!float, C1, C2) */
- continue;
+static int ia32_is_mux_allowed(ir_node *sel, ir_node *mux_false,
+ ir_node *mux_true)
+{
+ ir_mode *mode;
+
+ /* we can handle Abs for all modes and compares */
+ if (mux_is_abs(sel, mux_true, mux_false))
+ return true;
+ /* we can handle Set for all modes and compares */
+ if (mux_is_set(sel, mux_true, mux_false))
+ return true;
+ /* SSE has own min/max operations */
+ if (ia32_cg_config.use_sse2
+ && mux_is_float_min_max(sel, mux_true, mux_false))
+ return true;
+ /* we can handle Mux(?, Const[f], Const[f]) */
+ if (mux_is_float_const_const(sel, mux_true, mux_false)) {
#ifdef FIRM_GRGEN_BE
- case TRANSFORMER_PBQP:
- case TRANSFORMER_RAND:
- /* no support for Mux(*, C1, C2) */
- return 0;
+ /* well, some code selectors can't handle it */
+ if (be_transformer != TRANSFORMER_PBQP
+ || be_transformer != TRANSFORMER_RAND)
+ return true;
+#else
+ return true;
#endif
- default:
- panic("invalid transformer");
- }
- }
- /* only abs or nabs supported */
- if (! psi_is_Abs_or_Nabs(cmp, sel, t, f))
- return 0;
- } else if (get_mode_size_bits(mode) > 32) {
- /* no 64bit yet */
- 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 Mux(x, C1, C2) */
- continue;
- }
- } else if (pn == pn_Cmp_Lt || pn == pn_Cmp_Le || pn == pn_Cmp_Ge || pn == pn_Cmp_Gt) {
-#if 0
- if (cl == t && cr == f) {
- /* Mux(a <=/>= b, a, b) => Min, Max */
- continue;
- }
- if (cl == f && cr == t) {
- /* Mux(a <=/>= b, b, a) => Max, Min */
- continue;
- }
-#endif
- 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) {
- /* Mux(a >=u b, a - b, 0) unsigned Doz */
- continue;
- }
- 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) {
- /* Mux(a <=u b, 0, a - b) unsigned Doz */
- continue;
- }
- if (is_Const(cr) && is_Const_null(cr)) {
- if (cl == t && is_Minus(f) && get_Minus_op(f) == cl) {
- /* Mux(a <=/>= 0 ? a : -a) Nabs/Abs */
- continue;
- } else if (cl == f && is_Minus(t) && get_Minus_op(t) == cl) {
- /* Mux(a <=/>= 0 ? -a : a) Abs/Nabs */
- continue;
- }
- }
- }
- return 0;
+ /* no support for 64bit inputs to cmov */
+ mode = get_irn_mode(mux_true);
+ if (get_mode_size_bits(mode) > 32)
+ return false;
+ /* we can't handle MuxF yet */
+ if (mode_is_float(mode))
+ return false;
+
+ if (mux_is_doz(sel, mux_true, mux_false))
+ return true;
+
+ /* Check Cmp before the node */
+ if (is_Proj(sel)) {
+ ir_node *cmp = get_Proj_pred(sel);
+ if (is_Cmp(cmp)) {
+ ir_mode *cmp_mode = get_irn_mode(get_Cmp_left(cmp));
+
+ /* we can't handle 64bit compares */
+ if (get_mode_size_bits(cmp_mode) > 32)
+ return false;
+
+ /* we can't handle float compares */
+ if (mode_is_float(cmp_mode))
+ return false;
}
- /* all checks passed */
- return 1;
}
- return 0;
+
+ /* did we disable cmov generation? */
+ if (!ia32_cg_config.use_cmov)
+ return false;
+
+ /* we can use a cmov */
+ return true;
}
static asm_constraint_flags_t ia32_parse_asm_constraint(const char **c)
}
static const lc_opt_enum_int_items_t gas_items[] = {
- { "elf", GAS_FLAVOUR_ELF },
- { "mingw", GAS_FLAVOUR_MINGW },
- { "yasm", GAS_FLAVOUR_YASM },
- { "macho", GAS_FLAVOUR_MACH_O },
- { NULL, 0 }
+ { "elf", OBJECT_FILE_FORMAT_ELF },
+ { "mingw", OBJECT_FILE_FORMAT_COFF },
+ { "macho", OBJECT_FILE_FORMAT_MACH_O },
+ { NULL, 0 }
};
static lc_opt_enum_int_var_t gas_var = {
- (int*) &be_gas_flavour, gas_items
+ (int*) &be_gas_object_file_format, gas_items
};
#ifdef FIRM_GRGEN_BE
projects / libfirm / blobdiff