ir_mode: simplify interface, improve float-mode handling
[libfirm] / ir / be / ia32 / ia32_transform.c
index ca8b7ea..8319bbe 100644 (file)
 #include "array_t.h"
 #include "heights.h"
 
-#include "../benode.h"
-#include "../besched.h"
-#include "../beabi.h"
-#include "../beutil.h"
-#include "../beirg.h"
-#include "../betranshlp.h"
-#include "../be_t.h"
+#include "benode.h"
+#include "besched.h"
+#include "beabi.h"
+#include "beutil.h"
+#include "beirg.h"
+#include "betranshlp.h"
+#include "be_t.h"
 
 #include "bearch_ia32_t.h"
 #include "ia32_common_transform.h"
 /* define this to construct SSE constants instead of load them */
 #undef CONSTRUCT_SSE_CONST
 
-
-#define SFP_SIGN   "0x80000000"
-#define DFP_SIGN   "0x8000000000000000"
-#define SFP_ABS    "0x7FFFFFFF"
-#define DFP_ABS    "0x7FFFFFFFFFFFFFFF"
-#define DFP_INTMAX "9223372036854775807"
-#define ULL_BIAS   "18446744073709551616"
-
-#define ENT_SFP_SIGN "C_ia32_sfp_sign"
-#define ENT_DFP_SIGN "C_ia32_dfp_sign"
-#define ENT_SFP_ABS  "C_ia32_sfp_abs"
-#define ENT_DFP_ABS  "C_ia32_dfp_abs"
-#define ENT_ULL_BIAS "C_ia32_ull_bias"
-
 #define mode_vfp    (ia32_reg_classes[CLASS_ia32_vfp].mode)
 #define mode_xmm    (ia32_reg_classes[CLASS_ia32_xmm].mode)
 
@@ -215,21 +201,23 @@ static ir_node *get_symconst_base(void)
  */
 static ir_node *gen_Const(ir_node *node)
 {
-       ir_node  *old_block = get_nodes_block(node);
-       ir_node  *block     = be_transform_node(old_block);
-       dbg_info *dbgi      = get_irn_dbg_info(node);
-       ir_mode  *mode      = get_irn_mode(node);
+       ir_node   *old_block = get_nodes_block(node);
+       ir_node   *block     = be_transform_node(old_block);
+       dbg_info  *dbgi      = get_irn_dbg_info(node);
+       ir_mode   *mode      = get_irn_mode(node);
+       ir_tarval *tv        = get_Const_tarval(node);
 
        assert(is_Const(node));
 
        if (mode_is_float(mode)) {
-               ir_node   *res   = NULL;
-               ir_node   *load;
-               ir_node   *base;
-               ir_entity *floatent;
+               ir_graph         *irg      = get_irn_irg(node);
+               const arch_env_t *arch_env = be_get_irg_arch_env(irg);
+               ia32_isa_t       *isa      = (ia32_isa_t*) arch_env;
+               ir_node          *res      = NULL;
+               ir_node          *load;
+               ir_entity        *floatent;
 
                if (ia32_cg_config.use_sse2) {
-                       ir_tarval *tv = get_Const_tarval(node);
                        if (tarval_is_null(tv)) {
                                load = new_bd_ia32_xZero(dbgi, block);
                                set_ia32_ls_mode(load, mode);
@@ -260,6 +248,7 @@ static ir_node *gen_Const(ir_node *node)
                                set_ia32_ls_mode(load, mode);
                                res = load;
                        } else {
+                               ir_node *base;
 #ifdef CONSTRUCT_SSE_CONST
                                if (mode == mode_D) {
                                        unsigned val = get_tarval_sub_bits(tv, 0) |
@@ -285,22 +274,22 @@ static ir_node *gen_Const(ir_node *node)
                                        }
                                }
 #endif /* CONSTRUCT_SSE_CONST */
-                               floatent = ia32_create_float_const_entity(node);
+                               floatent = ia32_create_float_const_entity(isa, tv, NULL);
 
                                base     = get_symconst_base();
                                load     = new_bd_ia32_xLoad(dbgi, block, base, noreg_GP, nomem,
                                                             mode);
                                set_ia32_op_type(load, ia32_AddrModeS);
                                set_ia32_am_sc(load, floatent);
-                               arch_irn_add_flags(load, arch_irn_flags_rematerializable);
+                               arch_add_irn_flags(load, arch_irn_flags_rematerializable);
                                res = new_r_Proj(load, mode_xmm, pn_ia32_xLoad_res);
                        }
                } else {
-                       if (is_Const_null(node)) {
+                       if (tarval_is_null(tv)) {
                                load = new_bd_ia32_vfldz(dbgi, block);
                                res  = load;
                                set_ia32_ls_mode(load, mode);
-                       } else if (is_Const_one(node)) {
+                       } else if (tarval_is_one(tv)) {
                                load = new_bd_ia32_vfld1(dbgi, block);
                                res  = load;
                                set_ia32_ls_mode(load, mode);
@@ -308,7 +297,7 @@ static ir_node *gen_Const(ir_node *node)
                                ir_mode *ls_mode;
                                ir_node *base;
 
-                               floatent = ia32_create_float_const_entity(node);
+                               floatent = ia32_create_float_const_entity(isa, tv, NULL);
                                /* create_float_const_ent is smart and sometimes creates
                                   smaller entities */
                                ls_mode  = get_type_mode(get_entity_type(floatent));
@@ -317,7 +306,7 @@ static ir_node *gen_Const(ir_node *node)
                                                            ls_mode);
                                set_ia32_op_type(load, ia32_AddrModeS);
                                set_ia32_am_sc(load, floatent);
-                               arch_irn_add_flags(load, arch_irn_flags_rematerializable);
+                               arch_add_irn_flags(load, arch_irn_flags_rematerializable);
                                res = new_r_Proj(load, mode_vfp, pn_ia32_vfld_res);
                        }
                }
@@ -327,9 +316,8 @@ end:
                SET_IA32_ORIG_NODE(load, node);
                return res;
        } else { /* non-float mode */
-               ir_node   *cnst;
-               ir_tarval *tv = get_Const_tarval(node);
-               long       val;
+               ir_node *cnst;
+               long     val;
 
                tv = tarval_convert_to(tv, mode_Iu);
 
@@ -359,9 +347,9 @@ static ir_node *gen_SymConst(ir_node *node)
 
        if (mode_is_float(mode)) {
                if (ia32_cg_config.use_sse2)
-                       cnst = new_bd_ia32_xLoad(dbgi, block, noreg_GP, noreg_GP, nomem, mode_E);
+                       cnst = new_bd_ia32_xLoad(dbgi, block, noreg_GP, noreg_GP, nomem, mode_D);
                else
-                       cnst = new_bd_ia32_vfld(dbgi, block, noreg_GP, noreg_GP, nomem, mode_E);
+                       cnst = new_bd_ia32_vfld(dbgi, block, noreg_GP, noreg_GP, nomem, ia32_mode_E);
                set_ia32_am_sc(cnst, get_SymConst_entity(node));
                set_ia32_use_frame(cnst);
        } else {
@@ -386,64 +374,18 @@ static ir_node *gen_SymConst(ir_node *node)
        return cnst;
 }
 
-/**
- * Create a float type for the given mode and cache it.
- *
- * @param mode   the mode for the float type (might be integer mode for SSE2 types)
- * @param align  alignment
- */
-static ir_type *ia32_create_float_type(ir_mode *mode, unsigned align)
+static ir_type *make_array_type(ir_type *tp)
 {
-       ir_type *tp;
-
-       assert(align <= 16);
-
-       if (mode == mode_Iu) {
-               static ir_type *int_Iu[16] = {NULL, };
-
-               if (int_Iu[align] == NULL) {
-                       int_Iu[align] = tp = new_type_primitive(mode);
-                       /* set the specified alignment */
-                       set_type_alignment_bytes(tp, align);
-               }
-               return int_Iu[align];
-       } else if (mode == mode_Lu) {
-               static ir_type *int_Lu[16] = {NULL, };
-
-               if (int_Lu[align] == NULL) {
-                       int_Lu[align] = tp = new_type_primitive(mode);
-                       /* set the specified alignment */
-                       set_type_alignment_bytes(tp, align);
-               }
-               return int_Lu[align];
-       } else if (mode == mode_F) {
-               static ir_type *float_F[16] = {NULL, };
-
-               if (float_F[align] == NULL) {
-                       float_F[align] = tp = new_type_primitive(mode);
-                       /* set the specified alignment */
-                       set_type_alignment_bytes(tp, align);
-               }
-               return float_F[align];
-       } else if (mode == mode_D) {
-               static ir_type *float_D[16] = {NULL, };
-
-               if (float_D[align] == NULL) {
-                       float_D[align] = tp = new_type_primitive(mode);
-                       /* set the specified alignment */
-                       set_type_alignment_bytes(tp, align);
-               }
-               return float_D[align];
-       } else {
-               static ir_type *float_E[16] = {NULL, };
-
-               if (float_E[align] == NULL) {
-                       float_E[align] = tp = new_type_primitive(mode);
-                       /* set the specified alignment */
-                       set_type_alignment_bytes(tp, align);
-               }
-               return float_E[align];
-       }
+       unsigned alignment = get_type_alignment_bytes(tp);
+       unsigned size      = get_type_size_bytes(tp);
+       ir_type *res = new_type_array(1, tp);
+       set_type_alignment_bytes(res, alignment);
+       set_array_bounds_int(res, 0, 0, 2);
+       if (alignment > size)
+               size = alignment;
+       set_type_size_bytes(res, 2 * size);
+       set_type_state(res, layout_fixed);
+       return res;
 }
 
 /**
@@ -454,33 +396,27 @@ static ir_type *ia32_create_float_type(ir_mode *mode, unsigned align)
 static ir_type *ia32_create_float_array(ir_type *tp)
 {
        ir_mode  *mode = get_type_mode(tp);
-       unsigned align = get_type_alignment_bytes(tp);
        ir_type  *arr;
 
-       assert(align <= 16);
-
        if (mode == mode_F) {
-               static ir_type *float_F[16] = {NULL, };
+               static ir_type *float_F;
 
-               if (float_F[align] != NULL)
-                       return float_F[align];
-               arr = float_F[align] = new_type_array(1, tp);
+               arr = float_F;
+               if (arr == NULL)
+                       arr = float_F = make_array_type(tp);
        } else if (mode == mode_D) {
-               static ir_type *float_D[16] = {NULL, };
+               static ir_type *float_D;
 
-               if (float_D[align] != NULL)
-                       return float_D[align];
-               arr = float_D[align] = new_type_array(1, tp);
+               arr = float_D;
+               if (arr == NULL)
+                       arr = float_D = make_array_type(tp);
        } else {
-               static ir_type *float_E[16] = {NULL, };
+               static ir_type *float_E;
 
-               if (float_E[align] != NULL)
-                       return float_E[align];
-               arr = float_E[align] = new_type_array(1, tp);
+               arr = float_E;
+               if (arr == NULL)
+                       arr = float_E = make_array_type(tp);
        }
-       set_type_alignment_bytes(arr, align);
-       set_type_size_bytes(arr, 2 * get_type_size_bytes(tp));
-       set_type_state(arr, layout_fixed);
        return arr;
 }
 
@@ -488,58 +424,56 @@ static ir_type *ia32_create_float_array(ir_type *tp)
 ir_entity *ia32_gen_fp_known_const(ia32_known_const_t kct)
 {
        static const struct {
-               const char *ent_name;
+               const char *name;
                const char *cnst_str;
-               char mode;
-               unsigned char align;
+               char        mode;
        } names [ia32_known_const_max] = {
-               { ENT_SFP_SIGN, SFP_SIGN,   0, 16 }, /* ia32_SSIGN */
-               { ENT_DFP_SIGN, DFP_SIGN,   1, 16 }, /* ia32_DSIGN */
-               { ENT_SFP_ABS,  SFP_ABS,    0, 16 }, /* ia32_SABS */
-               { ENT_DFP_ABS,  DFP_ABS,    1, 16 }, /* ia32_DABS */
-               { ENT_ULL_BIAS, ULL_BIAS,   2, 4 }   /* ia32_ULLBIAS */
+               { "C_sfp_sign", "0x80000000",          0 },
+               { "C_dfp_sign", "0x8000000000000000",  1 },
+               { "C_sfp_abs",  "0x7FFFFFFF",          0 },
+               { "C_dfp_abs",  "0x7FFFFFFFFFFFFFFF",  1 },
+               { "C_ull_bias", "0x10000000000000000", 2 }
        };
        static ir_entity *ent_cache[ia32_known_const_max];
 
-       const char *ent_name, *cnst_str;
-       ir_type    *tp;
-       ir_entity  *ent;
-       ir_tarval  *tv;
-       ir_mode    *mode;
-
-       ent_name = names[kct].ent_name;
-       if (! ent_cache[kct]) {
-               cnst_str = names[kct].cnst_str;
+       ir_entity *ent = ent_cache[kct];
 
+       if (ent == NULL) {
+               ir_graph         *irg      = current_ir_graph;
+               const arch_env_t *arch_env = be_get_irg_arch_env(irg);
+               ia32_isa_t       *isa      = (ia32_isa_t*) arch_env;
+               const char       *cnst_str = names[kct].cnst_str;
+               ident            *name     = new_id_from_str(names[kct].name);
+               ir_mode          *mode;
+               ir_tarval        *tv;
                switch (names[kct].mode) {
                case 0:  mode = mode_Iu; break;
                case 1:  mode = mode_Lu; break;
-               default: mode = mode_F;  break;
+               case 2:  mode = mode_F;  break;
+               default: panic("internal compiler error (ia32_gen_fp_known_const)");
                }
-               tv  = new_tarval_from_str(cnst_str, strlen(cnst_str), mode);
-               tp  = ia32_create_float_type(mode, names[kct].align);
+               tv = new_tarval_from_str(cnst_str, strlen(cnst_str), mode);
 
-               if (kct == ia32_ULLBIAS)
-                       tp = ia32_create_float_array(tp);
-               ent = new_entity(get_glob_type(), new_id_from_str(ent_name), tp);
+               if (kct == ia32_ULLBIAS) {
+                       ir_type          *type  = ia32_get_prim_type(mode_F);
+                       ir_type          *atype = ia32_create_float_array(type);
+                       ir_initializer_t *initializer;
 
-               set_entity_ld_ident(ent, get_entity_ident(ent));
-               add_entity_linkage(ent, IR_LINKAGE_CONSTANT);
-               set_entity_visibility(ent, ir_visibility_private);
+                       ent = new_entity(get_glob_type(), name, atype);
 
-               if (kct == ia32_ULLBIAS) {
-                       ir_initializer_t *initializer = create_initializer_compound(2);
+                       set_entity_ld_ident(ent, name);
+                       set_entity_visibility(ent, ir_visibility_private);
+                       add_entity_linkage(ent, IR_LINKAGE_CONSTANT);
 
+                       initializer = create_initializer_compound(2);
                        set_initializer_compound_value(initializer, 0,
                                create_initializer_tarval(get_mode_null(mode)));
                        set_initializer_compound_value(initializer, 1,
                                create_initializer_tarval(tv));
-
                        set_entity_initializer(ent, initializer);
                } else {
-                       set_entity_initializer(ent, create_initializer_tarval(tv));
+                       ent = ia32_create_float_const_entity(isa, tv, name);
                }
-
                /* cache the entry */
                ent_cache[kct] = ent;
        }
@@ -639,7 +573,11 @@ static void build_address(ia32_address_mode_t *am, ir_node *node,
 
        /* floating point immediates */
        if (is_Const(node)) {
-               ir_entity *entity  = ia32_create_float_const_entity(node);
+               ir_graph         *irg      = get_irn_irg(node);
+               const arch_env_t *arch_env = be_get_irg_arch_env(irg);
+               ia32_isa_t       *isa      = (ia32_isa_t*) arch_env;
+               ir_tarval        *tv       = get_Const_tarval(node);
+               ir_entity *entity  = ia32_create_float_const_entity(isa, tv, NULL);
                addr->base         = get_symconst_base();
                addr->index        = noreg_GP;
                addr->mem          = nomem;
@@ -881,7 +819,6 @@ static void match_arguments(ia32_address_mode_t *am, ir_node *block,
                }
                am->op_type = ia32_AddrModeS;
        } else {
-               ir_mode *mode;
                am->op_type = ia32_Normal;
 
                if (flags & match_try_am) {
@@ -1112,15 +1049,19 @@ static ir_node *gen_shift_binop(ir_node *node, ir_node *op1, ir_node *op2,
 {
        dbg_info *dbgi;
        ir_node  *block, *new_block, *new_op1, *new_op2, *new_node;
+       ir_mode  *mode = get_irn_mode(node);
 
-       assert(! mode_is_float(get_irn_mode(node)));
+       assert(! mode_is_float(mode));
        assert(flags & match_immediate);
        assert((flags & ~(match_mode_neutral | match_immediate)) == 0);
 
+       if (get_mode_modulo_shift(mode) != 32)
+               panic("modulo shift!=32 not supported by ia32 backend");
+
        if (flags & match_mode_neutral) {
                op1     = ia32_skip_downconv(op1);
                new_op1 = be_transform_node(op1);
-       } else if (get_mode_size_bits(get_irn_mode(node)) != 32) {
+       } else if (get_mode_size_bits(mode) != 32) {
                new_op1 = create_upconv(op1, node);
        } else {
                new_op1 = be_transform_node(op1);
@@ -1190,7 +1131,9 @@ static ir_node *gen_unop(ir_node *node, ir_node *op, construct_unop_func *func,
 static ir_node *create_lea_from_address(dbg_info *dbgi, ir_node *block,
                                         ia32_address_t *addr)
 {
-       ir_node *base, *index, *res;
+       ir_node *base;
+       ir_node *idx;
+       ir_node *res;
 
        base = addr->base;
        if (base == NULL) {
@@ -1199,11 +1142,11 @@ static ir_node *create_lea_from_address(dbg_info *dbgi, ir_node *block,
                base = be_transform_node(base);
        }
 
-       index = addr->index;
-       if (index == NULL) {
-               index = noreg_GP;
+       idx = addr->index;
+       if (idx == NULL) {
+               idx = noreg_GP;
        } else {
-               index = be_transform_node(index);
+               idx = be_transform_node(idx);
        }
 
        /* segment overrides are ineffective for Leas :-( so we have to patch
@@ -1218,7 +1161,7 @@ static ir_node *create_lea_from_address(dbg_info *dbgi, ir_node *block,
                addr->tls_segment = false;
        }
 
-       res = new_bd_ia32_Lea(dbgi, block, base, index);
+       res = new_bd_ia32_Lea(dbgi, block, base, idx);
        set_address(res, addr);
 
        return res;
@@ -1234,6 +1177,118 @@ static int am_has_immediates(const ia32_address_t *addr)
                || addr->frame_entity || addr->use_frame;
 }
 
+typedef ir_node* (*new_shiftd_func)(dbg_info *dbgi, ir_node *block,
+                                    ir_node *high, ir_node *low,
+                                    ir_node *count);
+
+/**
+ * Transforms a l_ShlD/l_ShrD into a ShlD/ShrD. Those nodes have 3 data inputs:
+ * op1 - target to be shifted
+ * op2 - contains bits to be shifted into target
+ * op3 - shift count
+ * Only op3 can be an immediate.
+ */
+static ir_node *gen_64bit_shifts(dbg_info *dbgi, ir_node *block,
+                                 ir_node *high, ir_node *low, ir_node *count,
+                                 new_shiftd_func func)
+{
+       ir_node  *new_block = be_transform_node(block);
+       ir_node  *new_high  = be_transform_node(high);
+       ir_node  *new_low   = be_transform_node(low);
+       ir_node  *new_count;
+       ir_node  *new_node;
+
+       /* the shift amount can be any mode that is bigger than 5 bits, since all
+        * other bits are ignored anyway */
+       while (is_Conv(count)              &&
+              get_irn_n_edges(count) == 1 &&
+              mode_is_int(get_irn_mode(count))) {
+               assert(get_mode_size_bits(get_irn_mode(count)) >= 5);
+               count = get_Conv_op(count);
+       }
+       new_count = create_immediate_or_transform(count, 0);
+
+       new_node = func(dbgi, new_block, new_high, new_low, new_count);
+       return new_node;
+}
+
+/**
+ * test wether 2 values result in 'x' and '32-x' when interpreted as a shift
+ * value.
+ */
+static bool is_complementary_shifts(ir_node *value1, ir_node *value2)
+{
+       if (is_Const(value1) && is_Const(value2)) {
+               ir_tarval *tv1 = get_Const_tarval(value1);
+               ir_tarval *tv2 = get_Const_tarval(value2);
+               if (tarval_is_long(tv1) && tarval_is_long(tv2)) {
+                       long v1 = get_tarval_long(tv1);
+                       long v2 = get_tarval_long(tv2);
+                       return v1 <= v2 && v2 == 32-v1;
+               }
+       }
+       return false;
+}
+
+static ir_node *match_64bit_shift(ir_node *node)
+{
+       ir_node *op1 = get_binop_left(node);
+       ir_node *op2 = get_binop_right(node);
+       assert(is_Or(node) || is_Add(node));
+
+       if (is_Shr(op1)) {
+               ir_node *tmp = op1;
+               op1 = op2;
+               op2 = tmp;
+       }
+
+       /* match ShlD operation */
+       if (is_Shl(op1) && is_Shr(op2)) {
+               ir_node *shl_right = get_Shl_right(op1);
+               ir_node *shl_left  = get_Shl_left(op1);
+               ir_node *shr_right = get_Shr_right(op2);
+               ir_node *shr_left  = get_Shr_left(op2);
+               /* constant ShlD operation */
+               if (is_complementary_shifts(shl_right, shr_right)) {
+                       dbg_info *dbgi  = get_irn_dbg_info(node);
+                       ir_node  *block = get_nodes_block(node);
+                       return gen_64bit_shifts(dbgi, block, shl_left, shr_left, shl_right,
+                                               new_bd_ia32_ShlD);
+               }
+               /* constant ShrD operation */
+               if (is_complementary_shifts(shr_right, shl_right)) {
+                       dbg_info *dbgi  = get_irn_dbg_info(node);
+                       ir_node  *block = get_nodes_block(node);
+                       return gen_64bit_shifts(dbgi, block, shr_left, shl_left, shr_right,
+                                               new_bd_ia32_ShrD);
+               }
+               /* lower_dw produces the following for ShlD:
+                * Or(Shr(Shr(high,1),Not(c)),Shl(low,c)) */
+               if (is_Shr(shr_left) && is_Not(shr_right)
+                       && is_Const_1(get_Shr_right(shr_left))
+                   && get_Not_op(shr_right) == shl_right) {
+                       dbg_info *dbgi  = get_irn_dbg_info(node);
+                       ir_node  *block = get_nodes_block(node);
+                       ir_node  *val_h = get_Shr_left(shr_left);
+                       return gen_64bit_shifts(dbgi, block, shl_left, val_h, shl_right,
+                                               new_bd_ia32_ShlD);
+               }
+               /* lower_dw produces the following for ShrD:
+                * Or(Shl(Shl(high,1),Not(c)), Shr(low,c)) */
+               if (is_Shl(shl_left) && is_Not(shl_right)
+                   && is_Const_1(get_Shl_right(shl_left))
+                   && get_Not_op(shl_right) == shr_right) {
+                       dbg_info *dbgi  = get_irn_dbg_info(node);
+                       ir_node  *block = get_nodes_block(node);
+                       ir_node  *val_h = get_Shl_left(shl_left);
+                   return gen_64bit_shifts(dbgi, block, shr_left, val_h, shr_right,
+                                           new_bd_ia32_ShrD);
+               }
+       }
+
+       return NULL;
+}
+
 /**
  * Creates an ia32 Add.
  *
@@ -1249,6 +1304,10 @@ static ir_node *gen_Add(ir_node *node)
        ia32_address_t       addr;
        ia32_address_mode_t  am;
 
+       new_node = match_64bit_shift(node);
+       if (new_node != NULL)
+               return new_node;
+
        if (mode_is_float(mode)) {
                if (ia32_cg_config.use_sse2)
                        return gen_binop(node, op1, op2, new_bd_ia32_xAdd,
@@ -1419,117 +1478,6 @@ static ir_node *gen_And(ir_node *node)
                        match_commutative | match_mode_neutral | match_am | match_immediate);
 }
 
-/**
- * test wether 2 values result in 'x' and '32-x' when interpreted as a shift
- * value.
- */
-static bool is_complementary_shifts(ir_node *value1, ir_node *value2)
-{
-       if (is_Const(value1) && is_Const(value2)) {
-               ir_tarval *tv1 = get_Const_tarval(value1);
-               ir_tarval *tv2 = get_Const_tarval(value2);
-               if (tarval_is_long(tv1) && tarval_is_long(tv2)) {
-                       long v1 = get_tarval_long(tv1);
-                       long v2 = get_tarval_long(tv2);
-                       return v1 <= v2 && v2 == 32-v1;
-               }
-       }
-       return false;
-}
-
-typedef ir_node* (*new_shiftd_func)(dbg_info *dbgi, ir_node *block,
-                                    ir_node *high, ir_node *low,
-                                    ir_node *count);
-
-/**
- * Transforms a l_ShlD/l_ShrD into a ShlD/ShrD. Those nodes have 3 data inputs:
- * op1 - target to be shifted
- * op2 - contains bits to be shifted into target
- * op3 - shift count
- * Only op3 can be an immediate.
- */
-static ir_node *gen_64bit_shifts(dbg_info *dbgi, ir_node *block,
-                                 ir_node *high, ir_node *low, ir_node *count,
-                                 new_shiftd_func func)
-{
-       ir_node  *new_block = be_transform_node(block);
-       ir_node  *new_high  = be_transform_node(high);
-       ir_node  *new_low   = be_transform_node(low);
-       ir_node  *new_count;
-       ir_node  *new_node;
-
-       /* the shift amount can be any mode that is bigger than 5 bits, since all
-        * other bits are ignored anyway */
-       while (is_Conv(count)              &&
-              get_irn_n_edges(count) == 1 &&
-              mode_is_int(get_irn_mode(count))) {
-               assert(get_mode_size_bits(get_irn_mode(count)) >= 5);
-               count = get_Conv_op(count);
-       }
-       new_count = create_immediate_or_transform(count, 0);
-
-       new_node = func(dbgi, new_block, new_high, new_low, new_count);
-       return new_node;
-}
-
-static ir_node *match_64bit_shift(ir_node *node)
-{
-       ir_node *op1 = get_Or_left(node);
-       ir_node *op2 = get_Or_right(node);
-
-       if (is_Shr(op1)) {
-               ir_node *tmp = op1;
-               op1 = op2;
-               op2 = tmp;
-       }
-
-       /* match ShlD operation */
-       if (is_Shl(op1) && is_Shr(op2)) {
-               ir_node *shl_right = get_Shl_right(op1);
-               ir_node *shl_left  = get_Shl_left(op1);
-               ir_node *shr_right = get_Shr_right(op2);
-               ir_node *shr_left  = get_Shr_left(op2);
-               /* constant ShlD operation */
-               if (is_complementary_shifts(shl_right, shr_right)) {
-                       dbg_info *dbgi  = get_irn_dbg_info(node);
-                       ir_node  *block = get_nodes_block(node);
-                       return gen_64bit_shifts(dbgi, block, shl_left, shr_left, shl_right,
-                                               new_bd_ia32_ShlD);
-               }
-               /* constant ShrD operation */
-               if (is_complementary_shifts(shr_right, shl_right)) {
-                       dbg_info *dbgi  = get_irn_dbg_info(node);
-                       ir_node  *block = get_nodes_block(node);
-                       return gen_64bit_shifts(dbgi, block, shr_left, shl_left, shr_right,
-                                               new_bd_ia32_ShrD);
-               }
-               /* lower_dw produces the following for ShlD:
-                * Or(Shr(Shr(high,1),Not(c)),Shl(low,c)) */
-               if (is_Shr(shr_left) && is_Not(shr_right)
-                       && is_Const_1(get_Shr_right(shr_left))
-                   && get_Not_op(shr_right) == shl_right) {
-                       dbg_info *dbgi  = get_irn_dbg_info(node);
-                       ir_node  *block = get_nodes_block(node);
-                       ir_node  *val_h = get_Shr_left(shr_left);
-                       return gen_64bit_shifts(dbgi, block, shl_left, val_h, shl_right,
-                                               new_bd_ia32_ShlD);
-               }
-               /* lower_dw produces the following for ShrD:
-                * Or(Shl(Shl(high,1),Not(c)), Shr(low,c)) */
-               if (is_Shl(shl_left) && is_Not(shl_right)
-                   && is_Const_1(get_Shl_right(shl_left))
-                   && get_Not_op(shl_right) == shr_right) {
-                       dbg_info *dbgi  = get_irn_dbg_info(node);
-                       ir_node  *block = get_nodes_block(node);
-                       ir_node  *val_h = get_Shl_left(shl_left);
-                   return gen_64bit_shifts(dbgi, block, shr_left, val_h, shr_right,
-                                           new_bd_ia32_ShrD);
-               }
-       }
-
-       return NULL;
-}
-
 /**
  * Creates an ia32 Or.
  *
@@ -1962,43 +1910,41 @@ static ir_node *gen_Not(ir_node *node)
        return gen_unop(node, op, new_bd_ia32_Not, match_mode_neutral);
 }
 
-static ir_node *create_abs(dbg_info *dbgi, ir_node *block, ir_node *op,
-                           bool negate, ir_node *node)
+static ir_node *create_float_abs(dbg_info *dbgi, ir_node *block, ir_node *op,
+                                 bool negate, ir_node *node)
 {
        ir_node   *new_block = be_transform_node(block);
        ir_mode   *mode      = get_irn_mode(op);
-       ir_node   *new_op;
+       ir_node   *new_op    = be_transform_node(op);
        ir_node   *new_node;
        int        size;
        ir_entity *ent;
 
-       if (mode_is_float(mode)) {
-               new_op = be_transform_node(op);
+       assert(mode_is_float(mode));
 
-               if (ia32_cg_config.use_sse2) {
-                       ir_node *noreg_fp = ia32_new_NoReg_xmm(current_ir_graph);
-                       new_node = new_bd_ia32_xAnd(dbgi, new_block, get_symconst_base(),
-                                                   noreg_GP, nomem, new_op, noreg_fp);
+       if (ia32_cg_config.use_sse2) {
+               ir_node *noreg_fp = ia32_new_NoReg_xmm(current_ir_graph);
+               new_node = new_bd_ia32_xAnd(dbgi, new_block, get_symconst_base(),
+                                                                       noreg_GP, nomem, new_op, noreg_fp);
 
-                       size = get_mode_size_bits(mode);
-                       ent  = ia32_gen_fp_known_const(size == 32 ? ia32_SABS : ia32_DABS);
+               size = get_mode_size_bits(mode);
+               ent  = ia32_gen_fp_known_const(size == 32 ? ia32_SABS : ia32_DABS);
 
-                       set_ia32_am_sc(new_node, ent);
+               set_ia32_am_sc(new_node, ent);
 
-                       SET_IA32_ORIG_NODE(new_node, node);
+               SET_IA32_ORIG_NODE(new_node, node);
 
-                       set_ia32_op_type(new_node, ia32_AddrModeS);
-                       set_ia32_ls_mode(new_node, mode);
+               set_ia32_op_type(new_node, ia32_AddrModeS);
+               set_ia32_ls_mode(new_node, mode);
 
-                       /* TODO, implement -Abs case */
-                       assert(!negate);
-               } else {
-                       new_node = new_bd_ia32_vfabs(dbgi, new_block, new_op);
+               /* TODO, implement -Abs case */
+               assert(!negate);
+       } else {
+               new_node = new_bd_ia32_vfabs(dbgi, new_block, new_op);
+               SET_IA32_ORIG_NODE(new_node, node);
+               if (negate) {
+                       new_node = new_bd_ia32_vfchs(dbgi, new_block, new_node);
                        SET_IA32_ORIG_NODE(new_node, node);
-                       if (negate) {
-                               new_node = new_bd_ia32_vfchs(dbgi, new_block, new_node);
-                               SET_IA32_ORIG_NODE(new_node, node);
-                       }
                }
        }
 
@@ -2095,17 +2041,6 @@ static ia32_condition_code_t relation_to_condition_code(ir_relation relation,
        }
 }
 
-static ir_node *get_flags_mode_b(ir_node *node, ia32_condition_code_t *cc_out)
-{
-       /* a mode_b value, we have to compare it against 0 */
-       dbg_info *dbgi      = get_irn_dbg_info(node);
-       ir_node  *new_block = be_transform_node(get_nodes_block(node));
-       ir_node  *new_op    = be_transform_node(node);
-       ir_node  *flags     = new_bd_ia32_Test(dbgi, new_block, noreg_GP, noreg_GP, nomem, new_op, new_op, false);
-       *cc_out  = ia32_cc_not_equal;
-       return flags;
-}
-
 static ir_node *get_flags_node_cmp(ir_node *cmp, ia32_condition_code_t *cc_out)
 {
        /* must have a Cmp as input */
@@ -2167,10 +2102,8 @@ static ir_node *get_flags_node_cmp(ir_node *cmp, ia32_condition_code_t *cc_out)
  */
 static ir_node *get_flags_node(ir_node *node, ia32_condition_code_t *cc_out)
 {
-       if (is_Cmp(node))
-               return get_flags_node_cmp(node, cc_out);
-       assert(get_irn_mode(node) == mode_b);
-       return get_flags_mode_b(node, cc_out);
+       assert(is_Cmp(node));
+       return get_flags_node_cmp(node, cc_out);
 }
 
 /**
@@ -2189,15 +2122,15 @@ static ir_node *gen_Load(ir_node *node)
        ir_mode  *mode      = get_Load_mode(node);
        int       throws_exception = ir_throws_exception(node);
        ir_node  *base;
-       ir_node  *index;
+       ir_node  *idx;
        ir_node  *new_node;
        ia32_address_t addr;
 
        /* construct load address */
        memset(&addr, 0, sizeof(addr));
        ia32_create_address_mode(&addr, ptr, ia32_create_am_normal);
-       base  = addr.base;
-       index = addr.index;
+       base = addr.base;
+       idx  = addr.index;
 
        if (base == NULL) {
                base = noreg_GP;
@@ -2205,18 +2138,18 @@ static ir_node *gen_Load(ir_node *node)
                base = be_transform_node(base);
        }
 
-       if (index == NULL) {
-               index = noreg_GP;
+       if (idx == NULL) {
+               idx = noreg_GP;
        } else {
-               index = be_transform_node(index);
+               idx = be_transform_node(idx);
        }
 
        if (mode_is_float(mode)) {
                if (ia32_cg_config.use_sse2) {
-                       new_node = new_bd_ia32_xLoad(dbgi, block, base, index, new_mem,
+                       new_node = new_bd_ia32_xLoad(dbgi, block, base, idx, new_mem,
                                                     mode);
                } else {
-                       new_node = new_bd_ia32_vfld(dbgi, block, base, index, new_mem,
+                       new_node = new_bd_ia32_vfld(dbgi, block, base, idx, new_mem,
                                                    mode);
                }
        } else {
@@ -2224,10 +2157,10 @@ static ir_node *gen_Load(ir_node *node)
 
                /* create a conv node with address mode for smaller modes */
                if (get_mode_size_bits(mode) < 32) {
-                       new_node = new_bd_ia32_Conv_I2I(dbgi, block, base, index,
+                       new_node = new_bd_ia32_Conv_I2I(dbgi, block, base, idx,
                                                        new_mem, noreg_GP, mode);
                } else {
-                       new_node = new_bd_ia32_Load(dbgi, block, base, index, new_mem);
+                       new_node = new_bd_ia32_Load(dbgi, block, base, idx, new_mem);
                }
        }
        ir_set_throws_exception(new_node, throws_exception);
@@ -2241,7 +2174,7 @@ static ir_node *gen_Load(ir_node *node)
                assert((int)pn_ia32_xLoad_res == (int)pn_ia32_vfld_res
                                && (int)pn_ia32_vfld_res == (int)pn_ia32_Load_res
                                && (int)pn_ia32_Load_res == (int)pn_ia32_res);
-               arch_irn_add_flags(new_node, arch_irn_flags_rematerializable);
+               arch_add_irn_flags(new_node, arch_irn_flags_rematerializable);
        }
 
        SET_IA32_ORIG_NODE(new_node, node);
@@ -2627,36 +2560,46 @@ static ir_node *gen_float_const_Store(ir_node *node, ir_node *cns)
        ir_node        *ins[4];
        ia32_address_t  addr;
 
-       assert(size % 4 ==  0);
-       assert(size     <= 16);
-
        build_address_ptr(&addr, ptr, mem);
 
        do {
-               unsigned val =
-                        get_tarval_sub_bits(tv, ofs)            |
-                       (get_tarval_sub_bits(tv, ofs + 1) <<  8) |
-                       (get_tarval_sub_bits(tv, ofs + 2) << 16) |
-                       (get_tarval_sub_bits(tv, ofs + 3) << 24);
+               unsigned val;
+               unsigned delta;
+               ir_mode *mode;
+               if (size >= 4) {
+                       val= get_tarval_sub_bits(tv, ofs)            |
+                           (get_tarval_sub_bits(tv, ofs + 1) <<  8) |
+                           (get_tarval_sub_bits(tv, ofs + 2) << 16) |
+                           (get_tarval_sub_bits(tv, ofs + 3) << 24);
+                       delta = 4;
+                       mode  = mode_Iu;
+               } else if (size >= 2) {
+                       val= get_tarval_sub_bits(tv, ofs)            |
+                           (get_tarval_sub_bits(tv, ofs + 1) <<  8);
+                       delta = 2;
+                       mode  = mode_Hu;
+               } else {
+                       panic("invalid size of Store float to mem (%+F)", node);
+               }
                ir_node *imm = ia32_create_Immediate(NULL, 0, val);
 
                ir_node *new_node = new_bd_ia32_Store(dbgi, new_block, addr.base,
                        addr.index, addr.mem, imm);
-               ir_node *mem      = new_r_Proj(new_node, mode_M, pn_ia32_Store_M);
+               ir_node *new_mem  = new_r_Proj(new_node, mode_M, pn_ia32_Store_M);
 
                ir_set_throws_exception(new_node, throws_exception);
                set_irn_pinned(new_node, get_irn_pinned(node));
                set_ia32_op_type(new_node, ia32_AddrModeD);
-               set_ia32_ls_mode(new_node, mode_Iu);
+               set_ia32_ls_mode(new_node, mode);
                set_address(new_node, &addr);
                SET_IA32_ORIG_NODE(new_node, node);
 
                assert(i < 4);
-               ins[i++] = mem;
+               ins[i++] = new_mem;
 
-               size        -= 4;
-               ofs         += 4;
-               addr.offset += 4;
+               size -= delta;
+               ofs  += delta;
+               addr.offset += delta;
        } while (size != 0);
 
        if (i > 1) {
@@ -2676,7 +2619,7 @@ static ir_node *gen_vfist(dbg_info *dbgi, ir_node *block, ir_node *base,
                /* Note: fisttp ALWAYS pop the tos. We have to ensure here that the value is copied
                if other users exists */
                ir_node *vfisttp = new_bd_ia32_vfisttp(dbgi, block, base, index, mem, val);
-               ir_node *value   = new_r_Proj(vfisttp, mode_E, pn_ia32_vfisttp_res);
+               ir_node *value   = new_r_Proj(vfisttp, ia32_mode_E, pn_ia32_vfisttp_res);
                be_new_Keep(block, 1, &value);
 
                return vfisttp;
@@ -2794,8 +2737,8 @@ static ir_node *gen_general_Store(ir_node *node)
  */
 static ir_node *gen_Store(ir_node *node)
 {
-       ir_node  *val  = get_Store_value(node);
-       ir_mode  *mode = get_irn_mode(val);
+       ir_node *val  = get_Store_value(node);
+       ir_mode *mode = get_irn_mode(val);
 
        if (mode_is_float(mode) && is_Const(val)) {
                /* We can transform every floating const store
@@ -2815,46 +2758,31 @@ static ir_node *gen_Store(ir_node *node)
  */
 static ir_node *create_Switch(ir_node *node)
 {
-       dbg_info *dbgi       = get_irn_dbg_info(node);
-       ir_node  *block      = be_transform_node(get_nodes_block(node));
-       ir_node  *sel        = get_Cond_selector(node);
-       ir_node  *new_sel    = be_transform_node(sel);
-       long      switch_min = LONG_MAX;
-       long      switch_max = LONG_MIN;
-       long      default_pn = get_Cond_default_proj(node);
-       ir_node  *new_node;
-       const ir_edge_t *edge;
+       dbg_info  *dbgi       = get_irn_dbg_info(node);
+       ir_node   *block      = be_transform_node(get_nodes_block(node));
+       ir_node   *sel        = get_Cond_selector(node);
+       ir_node   *new_sel    = be_transform_node(sel);
+       long       default_pn = get_Cond_default_proj(node);
+       ir_node   *new_node;
+       ir_entity *entity;
 
        assert(get_mode_size_bits(get_irn_mode(sel)) == 32);
 
-       /* determine the smallest switch case value */
-       foreach_out_edge(node, edge) {
-               ir_node *proj = get_edge_src_irn(edge);
-               long     pn   = get_Proj_proj(proj);
-               if (pn == default_pn)
-                       continue;
-
-               if (pn < switch_min)
-                       switch_min = pn;
-               if (pn > switch_max)
-                       switch_max = pn;
-       }
-
-       if ((unsigned long) (switch_max - switch_min) > 128000) {
-               panic("Size of switch %+F bigger than 128000", node);
-       }
+       entity = new_entity(NULL, id_unique("TBL%u"), get_unknown_type());
+       set_entity_visibility(entity, ir_visibility_private);
+       add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
 
-       if (switch_min != 0) {
-               /* if smallest switch case is not 0 we need an additional sub */
-               new_sel = new_bd_ia32_Lea(dbgi, block, new_sel, noreg_GP);
-               add_ia32_am_offs_int(new_sel, -switch_min);
-               set_ia32_op_type(new_sel, ia32_AddrModeS);
-
-               SET_IA32_ORIG_NODE(new_sel, node);
-       }
-
-       new_node = new_bd_ia32_SwitchJmp(dbgi, block, new_sel, default_pn);
+       /* TODO: we could perform some more matching here to also use the base
+        * register of the address mode */
+       new_node
+               = new_bd_ia32_SwitchJmp(dbgi, block, noreg_GP, new_sel, default_pn);
+       set_ia32_am_scale(new_node, 2);
+       set_ia32_am_sc(new_node, entity);
+       set_ia32_op_type(new_node, ia32_AddrModeS);
+       set_ia32_ls_mode(new_node, mode_Iu);
        SET_IA32_ORIG_NODE(new_node, node);
+       // FIXME This seems wrong. GCC uses PIC for switch on OS X.
+       get_ia32_attr(new_node)->data.am_sc_no_pic_adjust = true;
 
        return new_node;
 }
@@ -3033,7 +2961,8 @@ static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode)
                                return shifted == 0 || shifted == -1;
                        } else {
                                unsigned long shifted = (unsigned long)attr->offset;
-                               shifted >>= get_mode_size_bits(mode);
+                               shifted >>= get_mode_size_bits(mode)-1;
+                               shifted >>= 1;
                                return shifted == 0;
                        }
                }
@@ -3267,7 +3196,7 @@ static ir_entity *ia32_create_const_array(ir_node *c0, ir_node *c1, ir_mode **ne
 
        }
 
-       tp = ia32_create_float_type(mode, 4);
+       tp = ia32_get_prim_type(mode);
        tp = ia32_create_float_array(tp);
 
        ent = new_entity(get_glob_type(), id_unique("C%u"), tp);
@@ -3421,11 +3350,11 @@ static void find_const_transform(ia32_condition_code_t cc,
                                ++step;
                                res->steps[step].transform = SETCC_TR_NEG;
                        } else {
-                               int v = get_tarval_lowest_bit(t);
-                               assert(v >= 0);
+                               int val = get_tarval_lowest_bit(t);
+                               assert(val >= 0);
 
                                res->steps[step].transform = SETCC_TR_SHL;
-                               res->steps[step].scale     = v;
+                               res->steps[step].scale     = val;
                        }
                }
                ++step;
@@ -3457,14 +3386,14 @@ static ir_node *gen_Mux(ir_node *node)
 
        assert(get_irn_mode(sel) == mode_b);
 
-       is_abs = ir_mux_is_abs(sel, mux_true, mux_false);
+       is_abs = ir_mux_is_abs(sel, mux_false, mux_true);
        if (is_abs != 0) {
                if (ia32_mode_needs_gp_reg(mode)) {
                        ir_fprintf(stderr, "Optimisation warning: Integer abs %+F not transformed\n",
                                   node);
                } else {
-                       ir_node *op = ir_get_abs_op(sel, mux_true, mux_false);
-                       return create_abs(dbgi, block, op, is_abs < 0, node);
+                       ir_node *op = ir_get_abs_op(sel, mux_false, mux_true);
+                       return create_float_abs(dbgi, block, op, is_abs < 0, node);
                }
        }
 
@@ -3517,31 +3446,15 @@ static ir_node *gen_Mux(ir_node *node)
 
                        am.addr.symconst_ent = ia32_create_const_array(mux_false, mux_true, &new_mode);
 
-                       switch (get_mode_size_bytes(new_mode)) {
-                       case 4:
+                       if (new_mode == mode_F) {
                                scale = 2;
-                               break;
-                       case 8:
+                       } else if (new_mode == mode_D) {
                                scale = 3;
-                               break;
-                       case 10:
-                               /* use 2 * 5 */
-                               scale = 1;
-                               new_node = new_bd_ia32_Lea(dbgi, new_block, new_node, new_node);
-                               set_ia32_am_scale(new_node, 2);
-                               break;
-                       case 12:
-                               /* use 4 * 3 */
-                               scale = 2;
-                               new_node = new_bd_ia32_Lea(dbgi, new_block, new_node, new_node);
-                               set_ia32_am_scale(new_node, 1);
-                               break;
-                       case 16:
+                       } else if (new_mode == ia32_mode_E) {
                                /* arg, shift 16 NOT supported */
                                scale = 3;
                                new_node = new_bd_ia32_Lea(dbgi, new_block, new_node, new_node);
-                               break;
-                       default:
+                       } else {
                                panic("Unsupported constant size");
                        }
 
@@ -3666,7 +3579,6 @@ static ir_node *gen_Mux(ir_node *node)
        }
 }
 
-
 /**
  * Create a conversion from x87 state register to general purpose.
  */
@@ -3743,7 +3655,7 @@ static ir_node *gen_x87_strict_conv(ir_mode *tgt_mode, ir_node *node)
        set_ia32_op_type(load, ia32_AddrModeS);
        SET_IA32_ORIG_NODE(load, node);
 
-       new_node = new_r_Proj(load, mode_E, pn_ia32_vfld_res);
+       new_node = new_r_Proj(load, ia32_mode_E, pn_ia32_vfld_res);
        return new_node;
 }
 
@@ -3941,7 +3853,7 @@ static ir_node *gen_Conv(ir_node *node)
                        }
                } else {
                        /* this should be optimized already, but who knows... */
-                       DEBUG_ONLY(ir_fprintf(stderr, "Debug warning: conv %+F is pointless\n", node));
+                       DEBUG_ONLY(ir_fprintf(stderr, "Debug warning: conv %+F is pointless\n", node);)
                        DB((dbg, LEVEL_1, "killed Conv(mode, mode) ..."));
                        return be_transform_node(op);
                }
@@ -3997,7 +3909,7 @@ static ir_node *gen_Conv(ir_node *node)
                                set_ia32_ls_mode(res, tgt_mode);
                        } else {
                                unsigned int_mantissa   = get_mode_size_bits(src_mode) - (mode_is_signed(src_mode) ? 1 : 0);
-                               unsigned float_mantissa = tarval_ieee754_get_mantissa_size(tgt_mode);
+                               unsigned float_mantissa = get_mode_mantissa_size(tgt_mode);
                                res = gen_x87_gp_to_fp(node, src_mode);
 
                                /* we need a strict-Conv, if the int mode has more bits than the
@@ -4153,8 +4065,8 @@ static ir_node *gen_be_AddSP(ir_node *node)
        ir_node *new_node = gen_binop(node, sp, sz, new_bd_ia32_SubSP,
                                      match_am | match_immediate);
        assert(is_ia32_SubSP(new_node));
-       arch_irn_set_register(new_node, pn_ia32_SubSP_stack,
-                             &ia32_registers[REG_ESP]);
+       arch_set_irn_register_out(new_node, pn_ia32_SubSP_stack,
+                                 &ia32_registers[REG_ESP]);
        return new_node;
 }
 
@@ -4169,8 +4081,8 @@ static ir_node *gen_be_SubSP(ir_node *node)
        ir_node *new_node = gen_binop(node, sp, sz, new_bd_ia32_AddSP,
                                      match_am | match_immediate);
        assert(is_ia32_AddSP(new_node));
-       arch_irn_set_register(new_node, pn_ia32_AddSP_stack,
-                             &ia32_registers[REG_ESP]);
+       arch_set_irn_register_out(new_node, pn_ia32_AddSP_stack,
+                                 &ia32_registers[REG_ESP]);
        return new_node;
 }
 
@@ -4211,7 +4123,7 @@ static ir_node *gen_Phi(ir_node *node)
        copy_node_attr(irg, node, phi);
        be_duplicate_deps(node, phi);
 
-       arch_set_out_register_req(phi, 0, req);
+       arch_set_irn_register_req_out(phi, 0, req);
 
        be_enqueue_preds(node);
 
@@ -4853,7 +4765,8 @@ static ir_node *gen_be_Call(ir_node *node)
        i    = get_irn_arity(node) - 1;
        fpcw = be_transform_node(get_irn_n(node, i--));
        for (; i >= n_be_Call_first_arg; --i) {
-               arch_register_req_t const *const req = arch_get_register_req(node, i);
+               arch_register_req_t const *const req
+                       = arch_get_irn_register_req_in(node, i);
                ir_node *const reg_parm = be_transform_node(get_irn_n(node, i));
 
                assert(req->type == arch_register_req_type_limited);
@@ -4949,7 +4862,7 @@ static ir_node *gen_return_address(ir_node *node)
                assert((int)pn_ia32_xLoad_res == (int)pn_ia32_vfld_res
                                && (int)pn_ia32_vfld_res == (int)pn_ia32_Load_res
                                && (int)pn_ia32_Load_res == (int)pn_ia32_res);
-               arch_irn_add_flags(load, arch_irn_flags_rematerializable);
+               arch_add_irn_flags(load, arch_irn_flags_rematerializable);
        }
 
        SET_IA32_ORIG_NODE(load, node);
@@ -5000,7 +4913,7 @@ static ir_node *gen_frame_address(ir_node *node)
                assert((int)pn_ia32_xLoad_res == (int)pn_ia32_vfld_res
                                && (int)pn_ia32_vfld_res == (int)pn_ia32_Load_res
                                && (int)pn_ia32_Load_res == (int)pn_ia32_res);
-               arch_irn_add_flags(load, arch_irn_flags_rematerializable);
+               arch_add_irn_flags(load, arch_irn_flags_rematerializable);
        }
 
        SET_IA32_ORIG_NODE(load, node);
@@ -5013,7 +4926,7 @@ static ir_node *gen_frame_address(ir_node *node)
 static ir_node *gen_prefetch(ir_node *node)
 {
        dbg_info       *dbgi;
-       ir_node        *ptr, *block, *mem, *base, *index;
+       ir_node        *ptr, *block, *mem, *base, *idx;
        ir_node        *param,  *new_node;
        long           rw, locality;
        ir_tarval      *tv;
@@ -5032,8 +4945,8 @@ static ir_node *gen_prefetch(ir_node *node)
        memset(&addr, 0, sizeof(addr));
        ptr = get_Builtin_param(node, 0);
        ia32_create_address_mode(&addr, ptr, ia32_create_am_normal);
-       base  = addr.base;
-       index = addr.index;
+       base = addr.base;
+       idx  = addr.index;
 
        if (base == NULL) {
                base = noreg_GP;
@@ -5041,10 +4954,10 @@ static ir_node *gen_prefetch(ir_node *node)
                base = be_transform_node(base);
        }
 
-       if (index == NULL) {
-               index = noreg_GP;
+       if (idx == NULL) {
+               idx = noreg_GP;
        } else {
-               index = be_transform_node(index);
+               idx = be_transform_node(idx);
        }
 
        dbgi     = get_irn_dbg_info(node);
@@ -5053,7 +4966,7 @@ static ir_node *gen_prefetch(ir_node *node)
 
        if (rw == 1 && ia32_cg_config.use_3dnow_prefetch) {
                /* we have 3DNow!, this was already checked above */
-               new_node = new_bd_ia32_PrefetchW(dbgi, block, base, index, mem);
+               new_node = new_bd_ia32_PrefetchW(dbgi, block, base, idx, mem);
        } else if (ia32_cg_config.use_sse_prefetch) {
                /* note: rw == 1 is IGNORED in that case */
                param    = get_Builtin_param(node, 2);
@@ -5063,22 +4976,22 @@ static ir_node *gen_prefetch(ir_node *node)
                /* SSE style prefetch */
                switch (locality) {
                case 0:
-                       new_node = new_bd_ia32_PrefetchNTA(dbgi, block, base, index, mem);
+                       new_node = new_bd_ia32_PrefetchNTA(dbgi, block, base, idx, mem);
                        break;
                case 1:
-                       new_node = new_bd_ia32_Prefetch2(dbgi, block, base, index, mem);
+                       new_node = new_bd_ia32_Prefetch2(dbgi, block, base, idx, mem);
                        break;
                case 2:
-                       new_node = new_bd_ia32_Prefetch1(dbgi, block, base, index, mem);
+                       new_node = new_bd_ia32_Prefetch1(dbgi, block, base, idx, mem);
                        break;
                default:
-                       new_node = new_bd_ia32_Prefetch0(dbgi, block, base, index, mem);
+                       new_node = new_bd_ia32_Prefetch0(dbgi, block, base, idx, mem);
                        break;
                }
        } else {
                assert(ia32_cg_config.use_3dnow_prefetch);
                /* 3DNow! style prefetch */
-               new_node = new_bd_ia32_Prefetch(dbgi, block, base, index, mem);
+               new_node = new_bd_ia32_Prefetch(dbgi, block, base, idx, mem);
        }
 
        set_irn_pinned(new_node, get_irn_pinned(node));
@@ -5203,6 +5116,8 @@ static ir_node *gen_parity(ir_node *node)
        ir_node *xor2 = new_bd_ia32_XorHighLow(dbgi, new_block, xor);
        ir_node *flags;
 
+       set_ia32_commutative(xor);
+
        set_irn_mode(xor2, mode_T);
        flags = new_r_Proj(xor2, mode_Iu, pn_ia32_XorHighLow_flags);
 
@@ -5585,7 +5500,7 @@ static ir_node *gen_Proj_Builtin(ir_node *proj)
 static ir_node *gen_be_IncSP(ir_node *node)
 {
        ir_node *res = be_duplicate_node(node);
-       arch_irn_add_flags(res, arch_irn_flags_modify_flags);
+       arch_add_irn_flags(res, arch_irn_flags_modify_flags);
 
        return res;
 }
@@ -5607,7 +5522,7 @@ static ir_node *gen_Proj_be_Call(ir_node *node)
        }
        /* transform call modes */
        if (mode_is_data(mode)) {
-               const arch_register_class_t *cls = arch_get_irn_reg_class_out(node);
+               const arch_register_class_t *cls = arch_get_irn_reg_class(node);
                mode = cls->mode;
        }
 
@@ -5621,8 +5536,8 @@ static ir_node *gen_Proj_be_Call(ir_node *node)
        } else if (proj == pn_be_Call_X_regular) {
                proj = pn_ia32_Call_X_regular;
        } else {
-               arch_register_req_t const *const req    = arch_get_register_req_out(node);
-               int                        const n_outs = arch_irn_get_n_outs(new_call);
+               arch_register_req_t const *const req    = arch_get_irn_register_req(node);
+               int                        const n_outs = arch_get_irn_n_outs(new_call);
                int                              i;
 
                assert(proj      >= pn_be_Call_first_res);
@@ -5630,7 +5545,7 @@ static ir_node *gen_Proj_be_Call(ir_node *node)
 
                for (i = 0; i < n_outs; ++i) {
                        arch_register_req_t const *const new_req
-                               = arch_get_out_register_req(new_call, i);
+                               = arch_get_irn_register_req_out(new_call, i);
 
                        if (!(new_req->type & arch_register_req_type_limited) ||
                            new_req->cls      != req->cls                     ||
@@ -5677,11 +5592,11 @@ static ir_node *gen_Proj_ASM(ir_node *node)
        long     pos      = get_Proj_proj(node);
 
        if (mode == mode_M) {
-               pos = arch_irn_get_n_outs(new_pred)-1;
+               pos = arch_get_irn_n_outs(new_pred)-1;
        } else if (mode_is_int(mode) || mode_is_reference(mode)) {
                mode = mode_Iu;
        } else if (mode_is_float(mode)) {
-               mode = mode_E;
+               mode = ia32_mode_E;
        } else {
                panic("unexpected proj mode at ASM");
        }
@@ -5856,14 +5771,14 @@ static void postprocess_fp_call_results(void)
                        ir_type *res_tp = get_method_res_type(mtp, j);
                        ir_node *res, *new_res;
                        const ir_edge_t *edge, *next;
-                       ir_mode *mode;
+                       ir_mode *res_mode;
 
                        if (! is_atomic_type(res_tp)) {
                                /* no floating point return */
                                continue;
                        }
-                       mode = get_type_mode(res_tp);
-                       if (! mode_is_float(mode)) {
+                       res_mode = get_type_mode(res_tp);
+                       if (! mode_is_float(res_mode)) {
                                /* no floating point return */
                                continue;
                        }
@@ -5884,12 +5799,12 @@ static void postprocess_fp_call_results(void)
                                        dbg_info *db    = get_irn_dbg_info(succ);
                                        ir_node  *block = get_nodes_block(succ);
                                        ir_node  *base  = get_irn_n(succ, n_ia32_xStore_base);
-                                       ir_node  *index = get_irn_n(succ, n_ia32_xStore_index);
+                                       ir_node  *idx   = get_irn_n(succ, n_ia32_xStore_index);
                                        ir_node  *mem   = get_irn_n(succ, n_ia32_xStore_mem);
                                        ir_node  *value = get_irn_n(succ, n_ia32_xStore_val);
                                        ir_mode  *mode  = get_ia32_ls_mode(succ);
 
-                                       ir_node  *st = new_bd_ia32_vfst(db, block, base, index, mem, value, mode);
+                                       ir_node  *st = new_bd_ia32_vfst(db, block, base, idx, mem, value, mode);
                                        //ir_node  *mem = new_r_Proj(st, mode_M, pn_ia32_vfst_M);
                                        set_ia32_am_offs_int(st, get_ia32_am_offs_int(succ));
                                        if (is_ia32_use_frame(succ))
@@ -5903,7 +5818,11 @@ static void postprocess_fp_call_results(void)
                                        assert((long)pn_ia32_xStore_X_except == (long)pn_ia32_vfst_X_except);
 
                                        exchange(succ, st);
-                               } else if (new_res == NULL) {
+
+                                       continue;
+                               }
+
+                               if (new_res == NULL) {
                                        dbg_info *db       = get_irn_dbg_info(call);
                                        ir_node  *block    = get_nodes_block(call);
                                        ir_node  *frame    = get_irg_frame(current_ir_graph);
@@ -5914,7 +5833,7 @@ static void postprocess_fp_call_results(void)
 
                                        /* store st(0) on stack */
                                        vfst = new_bd_ia32_vfst(db, block, frame, noreg_GP, call_mem,
-                                                               res, mode);
+                                                               res, res_mode);
                                        set_ia32_op_type(vfst, ia32_AddrModeD);
                                        set_ia32_use_frame(vfst);
 
@@ -5922,11 +5841,11 @@ static void postprocess_fp_call_results(void)
 
                                        /* load into SSE register */
                                        xld = new_bd_ia32_xLoad(db, block, frame, noreg_GP, vfst_mem,
-                                                               mode);
+                                                               res_mode);
                                        set_ia32_op_type(xld, ia32_AddrModeS);
                                        set_ia32_use_frame(xld);
 
-                                       new_res = new_r_Proj(xld, mode, pn_ia32_xLoad_res);
+                                       new_res = new_r_Proj(xld, res_mode, pn_ia32_xLoad_res);
                                        new_mem = new_r_Proj(xld, mode_M, pn_ia32_xLoad_M);
 
                                        if (old_mem != NULL) {