fehler109
[libfirm] / ir / be / ia32 / ia32_transform.c
index 91f61b1..4e0c2ad 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -55,6 +55,7 @@
 #include "../beutil.h"
 #include "../beirg_t.h"
 #include "../betranshlp.h"
+#include "../be_t.h"
 
 #include "bearch_ia32_t.h"
 #include "ia32_nodes_attr.h"
@@ -65,6 +66,7 @@
 #include "ia32_optimize.h"
 #include "ia32_util.h"
 #include "ia32_address_mode.h"
+#include "ia32_architecture.h"
 
 #include "gen_ia32_regalloc_if.h"
 
@@ -95,7 +97,6 @@ DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
 static ia32_code_gen_t *env_cg       = NULL;
 static ir_node         *initial_fpcw = NULL;
 static heights_t       *heights      = NULL;
-static transform_config_t transform_config;
 
 extern ir_op *get_op_Mulh(void);
 
@@ -124,16 +125,6 @@ typedef ir_node *construct_binop_float_func(dbg_info *db, ir_graph *irg,
 typedef ir_node *construct_unop_func(dbg_info *db, ir_graph *irg,
         ir_node *block, ir_node *op);
 
-/****************************************************************************************************
- *                  _        _                        __                           _   _
- *                 | |      | |                      / _|                         | | (_)
- *  _ __   ___   __| | ___  | |_ _ __ __ _ _ __  ___| |_ ___  _ __ _ __ ___   __ _| |_ _  ___  _ __
- * | '_ \ / _ \ / _` |/ _ \ | __| '__/ _` | '_ \/ __|  _/ _ \| '__| '_ ` _ \ / _` | __| |/ _ \| '_ \
- * | | | | (_) | (_| |  __/ | |_| | | (_| | | | \__ \ || (_) | |  | | | | | | (_| | |_| | (_) | | | |
- * |_| |_|\___/ \__,_|\___|  \__|_|  \__,_|_| |_|___/_| \___/|_|  |_| |_| |_|\__,_|\__|_|\___/|_| |_|
- *
- ****************************************************************************************************/
-
 static ir_node *try_create_Immediate(ir_node *node,
                                      char immediate_constraint_type);
 
@@ -265,6 +256,8 @@ static ir_node *gen_Const(ir_node *node) {
        dbg_info        *dbgi  = get_irn_dbg_info(node);
        ir_mode         *mode  = get_irn_mode(node);
 
+       assert(is_Const(node));
+
        if (mode_is_float(mode)) {
                ir_node   *res   = NULL;
                ir_node   *noreg = ia32_new_NoReg_gp(env_cg);
@@ -272,7 +265,7 @@ static ir_node *gen_Const(ir_node *node) {
                ir_node   *load;
                ir_entity *floatent;
 
-               if (USE_SSE2(env_cg)) {
+               if (ia32_cg_config.use_sse2) {
                        if (is_Const_null(node)) {
                                load = new_rd_ia32_xZero(dbgi, irg, block);
                                set_ia32_ls_mode(load, mode);
@@ -359,7 +352,7 @@ static ir_node *gen_SymConst(ir_node *node) {
                ir_node *noreg = ia32_new_NoReg_gp(env_cg);
                ir_node *nomem = new_NoMem();
 
-               if (USE_SSE2(env_cg))
+               if (ia32_cg_config.use_sse2)
                        cnst = new_rd_ia32_xLoad(dbgi, irg, block, noreg, noreg, nomem, mode_E);
                else
                        cnst = new_rd_ia32_vfld(dbgi, irg, block, noreg, noreg, nomem, mode_E);
@@ -463,7 +456,14 @@ const char *ia32_get_old_node_name(ia32_code_gen_t *cg, ir_node *irn) {
 }
 #endif /* NDEBUG */
 
-int ia32_use_source_address_mode(ir_node *block, ir_node *node, ir_node *other)
+/**
+ * return true if the node is a Proj(Load) and could be used in source address
+ * mode for another node. Will return only true if the @p other node is not
+ * dependent on the memory of the Load (for binary operations use the other
+ * input here, for unary operations use NULL).
+ */
+static int ia32_use_source_address_mode(ir_node *block, ir_node *node,
+                                        ir_node *other, ir_node *other2)
 {
        ir_mode *mode = get_irn_mode(node);
        ir_node *load;
@@ -499,6 +499,9 @@ int ia32_use_source_address_mode(ir_node *block, ir_node *node, ir_node *other)
        if(other != NULL && get_nodes_block(other) == block
                        && heights_reachable_in_block(heights, other, load))
                return 0;
+       if(other2 != NULL && get_nodes_block(other2) == block
+                       && heights_reachable_in_block(heights, other2, load))
+               return 0;
 
        return 1;
 }
@@ -524,17 +527,8 @@ static void build_address_ptr(ia32_address_t *addr, ir_node *ptr, ir_node *mem)
        memset(addr, 0, sizeof(addr[0]));
        ia32_create_address_mode(addr, ptr, /*force=*/0);
 
-       if(addr->base == NULL) {
-               addr->base = noreg_gp;
-       } else {
-               addr->base = be_transform_node(addr->base);
-       }
-
-       if(addr->index == NULL) {
-               addr->index = noreg_gp;
-       } else {
-               addr->index = be_transform_node(addr->index);
-       }
+       addr->base  = addr->base  ? be_transform_node(addr->base)  : noreg_gp;
+       addr->index = addr->index ? be_transform_node(addr->index) : noreg_gp;
        addr->mem   = be_transform_node(mem);
 }
 
@@ -546,8 +540,6 @@ static void build_address(ia32_address_mode_t *am, ir_node *node)
        ir_node        *ptr;
        ir_node        *mem;
        ir_node        *new_mem;
-       ir_node        *base;
-       ir_node        *index;
 
        if(is_Const(node)) {
                ir_entity *entity  = create_float_const_entity(node);
@@ -571,23 +563,9 @@ static void build_address(ia32_address_mode_t *am, ir_node *node)
 
        /* construct load address */
        ia32_create_address_mode(addr, ptr, /*force=*/0);
-       base  = addr->base;
-       index = addr->index;
-
-       if(base == NULL) {
-               base = noreg_gp;
-       } else {
-               base = be_transform_node(base);
-       }
-
-       if(index == NULL) {
-               index = noreg_gp;
-       } else {
-               index = be_transform_node(index);
-       }
 
-       addr->base  = base;
-       addr->index = index;
+       addr->base  = addr->base  ? be_transform_node(addr->base)  : noreg_gp;
+       addr->index = addr->index ? be_transform_node(addr->index) : noreg_gp;
        addr->mem   = new_mem;
 }
 
@@ -673,8 +651,20 @@ static ir_node *create_upconv(ir_node *node, ir_node *orig_node)
 }
 #endif
 
+/**
+ * matches operands of a node into ia32 addressing/operand modes. This covers
+ * usage of source address mode, immediates, operations with non 32-bit modes,
+ * ...
+ * The resulting data is filled into the @p am struct. block is the block
+ * of the node whose arguments are matched. op1, op2 are the first and second
+ * input that are matched (op1 may be NULL). other_op is another unrelated
+ * input that is not matched! but which is needed sometimes to check if AM
+ * for op1/op2 is legal.
+ * @p flags describes the supported modes of the operation in detail.
+ */
 static void match_arguments(ia32_address_mode_t *am, ir_node *block,
-                            ir_node *op1, ir_node *op2, match_flags_t flags)
+                            ir_node *op1, ir_node *op2, ir_node *other_op,
+                            match_flags_t flags)
 {
        ia32_address_t *addr     = &am->addr;
        ir_node        *noreg_gp = ia32_new_NoReg_gp(env_cg);
@@ -697,14 +687,18 @@ static void match_arguments(ia32_address_mode_t *am, ir_node *block,
 
        assert(op2 != NULL);
        assert(!commutative || op1 != NULL);
+       assert(use_am || !(flags & match_8bit_am));
+       assert(use_am || !(flags & match_16bit_am));
 
        if(mode_bits == 8) {
                if (! (flags & match_8bit_am))
                        use_am = 0;
+               /* we don't automatically add upconvs yet */
                assert((flags & match_mode_neutral) || (flags & match_8bit));
        } else if(mode_bits == 16) {
                if(! (flags & match_16bit_am))
                        use_am = 0;
+               /* we don't automatically add upconvs yet */
                assert((flags & match_mode_neutral) || (flags & match_16bit));
        }
 
@@ -717,12 +711,15 @@ static void match_arguments(ia32_address_mode_t *am, ir_node *block,
                }
        }
 
-       if(! (flags & match_try_am) && use_immediate)
+       /* match immediates. firm nodes are normalized: constants are always on the
+        * op2 input */
+       new_op2 = NULL;
+       if(! (flags & match_try_am) && use_immediate) {
                new_op2 = try_create_Immediate(op2, 0);
-       else
-               new_op2 = NULL;
+       }
 
-       if(new_op2 == NULL && use_am && ia32_use_source_address_mode(block, op2, op1)) {
+       if(new_op2 == NULL
+          && use_am && ia32_use_source_address_mode(block, op2, op1, other_op)) {
                build_address(am, op2);
                new_op1     = (op1 == NULL ? NULL : be_transform_node(op1));
                if(mode_is_float(mode)) {
@@ -732,7 +729,8 @@ static void match_arguments(ia32_address_mode_t *am, ir_node *block,
                }
                am->op_type = ia32_AddrModeS;
        } else if(commutative && (new_op2 == NULL || use_am_and_immediates) &&
-                     use_am && ia32_use_source_address_mode(block, op1, op2)) {
+                     use_am
+                     && ia32_use_source_address_mode(block, op1, op2, other_op)) {
                ir_node *noreg;
                build_address(am, op1);
 
@@ -821,7 +819,7 @@ static ir_node *gen_binop(ir_node *node, ir_node *op1, ir_node *op2,
        ia32_address_mode_t  am;
        ia32_address_t      *addr = &am.addr;
 
-       match_arguments(&am, block, op1, op2, flags);
+       match_arguments(&am, block, op1, op2, NULL, flags);
 
        new_node = func(dbgi, irg, new_block, addr->base, addr->index, addr->mem,
                        am.new_op1, am.new_op2);
@@ -871,7 +869,7 @@ static ir_node *gen_binop_flags(ir_node *node, construct_binop_flags_func *func,
        ia32_address_mode_t  am;
        ia32_address_t      *addr       = &am.addr;
 
-       match_arguments(&am, src_block, op1, op2, flags);
+       match_arguments(&am, src_block, op1, op2, NULL, flags);
 
        new_node = func(dbgi, irg, block, addr->base, addr->index,
                                   addr->mem, am.new_op1, am.new_op2, new_eflags);
@@ -915,11 +913,16 @@ static ir_node *gen_binop_x87_float(ir_node *node, ir_node *op1, ir_node *op2,
        dbg_info *dbgi      = get_irn_dbg_info(node);
        ir_node  *block     = get_nodes_block(node);
        ir_node  *new_block = be_transform_node(block);
+       ir_mode  *mode      = get_irn_mode(node);
        ir_node  *new_node;
        ia32_address_mode_t  am;
        ia32_address_t      *addr = &am.addr;
 
-       match_arguments(&am, block, op1, op2, flags);
+       /* cannot use addresmode with long double on x87 */
+       if (get_mode_size_bits(mode) > 64)
+               flags &= ~match_am;
+
+       match_arguments(&am, block, op1, op2, NULL, flags);
 
        new_node = func(dbgi, irg, new_block, addr->base, addr->index, addr->mem,
                        am.new_op1, am.new_op2, get_fpcw());
@@ -948,12 +951,11 @@ static ir_node *gen_shift_binop(ir_node *node, ir_node *op1, ir_node *op2,
        ir_graph *irg       = current_ir_graph;
        ir_node  *block     = get_nodes_block(node);
        ir_node  *new_block = be_transform_node(block);
-       ir_mode  *mode      = get_irn_mode(node);
        ir_node  *new_op1;
        ir_node  *new_op2;
        ir_node  *new_node;
 
-       assert(! mode_is_float(mode));
+       assert(! mode_is_float(get_irn_mode(node)));
        assert(flags & match_immediate);
        assert((flags & ~(match_mode_neutral | match_immediate)) == 0);
 
@@ -1065,7 +1067,7 @@ static ir_node *gen_Add(ir_node *node) {
        ia32_address_mode_t  am;
 
        if (mode_is_float(mode)) {
-               if (USE_SSE2(env_cg))
+               if (ia32_cg_config.use_sse2)
                        return gen_binop(node, op1, op2, new_rd_ia32_xAdd,
                                         match_commutative | match_am);
                else
@@ -1118,7 +1120,7 @@ static ir_node *gen_Add(ir_node *node) {
        }
 
        /* test if we can use source address mode */
-       match_arguments(&am, block, op1, op2, match_commutative
+       match_arguments(&am, block, op1, op2, NULL, match_commutative
                        | match_mode_neutral | match_am | match_immediate | match_try_am);
 
        /* construct an Add with source address mode */
@@ -1152,7 +1154,7 @@ static ir_node *gen_Mul(ir_node *node) {
        ir_mode *mode = get_irn_mode(node);
 
        if (mode_is_float(mode)) {
-               if (USE_SSE2(env_cg))
+               if (ia32_cg_config.use_sse2)
                        return gen_binop(node, op1, op2, new_rd_ia32_xMul,
                                         match_commutative | match_am);
                else
@@ -1160,11 +1162,9 @@ static ir_node *gen_Mul(ir_node *node) {
                                                   match_commutative | match_am);
        }
 
-       /*
-               for the lower 32bit of the result it doesn't matter whether we use
-               signed or unsigned multiplication so we use IMul as it has fewer
-               constraints
-       */
+       /* for the lower 32bit of the result it doesn't matter whether we use
+        * signed or unsigned multiplication so we use IMul as it has fewer
+        * constraints */
        return gen_binop(node, op1, op2, new_rd_ia32_IMul,
                         match_commutative | match_am | match_mode_neutral |
                         match_immediate | match_am_and_immediates);
@@ -1186,18 +1186,15 @@ static ir_node *gen_Mulh(ir_node *node)
        ir_mode  *mode      = get_irn_mode(node);
        ir_node  *op1       = get_Mulh_left(node);
        ir_node  *op2       = get_Mulh_right(node);
-       ir_node  *proj_EDX;
+       ir_node  *proj_res_high;
        ir_node  *new_node;
-       match_flags_t        flags;
        ia32_address_mode_t  am;
        ia32_address_t      *addr = &am.addr;
 
-       flags = match_commutative | match_am;
-
        assert(!mode_is_float(mode) && "Mulh with float not supported");
        assert(get_mode_size_bits(mode) == 32);
 
-       match_arguments(&am, block, op1, op2, flags);
+       match_arguments(&am, block, op1, op2, NULL, match_commutative | match_am);
 
        if (mode_is_signed(mode)) {
                new_node = new_rd_ia32_IMul1OP(dbgi, irg, new_block, addr->base,
@@ -1219,11 +1216,11 @@ static ir_node *gen_Mulh(ir_node *node)
 
        fix_mem_proj(new_node, &am);
 
-       assert(pn_ia32_IMul1OP_EDX == pn_ia32_Mul_EDX);
-       proj_EDX = new_rd_Proj(dbgi, irg, block, new_node,
-                              mode_Iu, pn_ia32_IMul1OP_EDX);
+       assert(pn_ia32_IMul1OP_res_high == pn_ia32_Mul_res_high);
+       proj_res_high = new_rd_Proj(dbgi, irg, block, new_node,
+                              mode_Iu, pn_ia32_IMul1OP_res_high);
 
-       return proj_EDX;
+       return proj_res_high;
 }
 
 
@@ -1310,7 +1307,7 @@ static ir_node *gen_Sub(ir_node *node) {
        ir_mode  *mode = get_irn_mode(node);
 
        if (mode_is_float(mode)) {
-               if (USE_SSE2(env_cg))
+               if (ia32_cg_config.use_sse2)
                        return gen_binop(node, op1, op2, new_rd_ia32_xSub, match_am);
                else
                        return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfsub,
@@ -1343,41 +1340,39 @@ static ir_node *create_Div(ir_node *node)
        ir_node  *new_node;
        ir_mode  *mode;
        ir_node  *sign_extension;
-       int       has_exc;
        ia32_address_mode_t  am;
        ia32_address_t      *addr = &am.addr;
 
        /* the upper bits have random contents for smaller modes */
-       has_exc = 0;
        switch (get_irn_opcode(node)) {
        case iro_Div:
                op1     = get_Div_left(node);
                op2     = get_Div_right(node);
                mem     = get_Div_mem(node);
                mode    = get_Div_resmode(node);
-               has_exc = be_get_Proj_for_pn(node, pn_Div_X_except) != NULL;
                break;
        case iro_Mod:
                op1     = get_Mod_left(node);
                op2     = get_Mod_right(node);
                mem     = get_Mod_mem(node);
                mode    = get_Mod_resmode(node);
-               has_exc = be_get_Proj_for_pn(node, pn_Mod_X_except) != NULL;
                break;
        case iro_DivMod:
                op1     = get_DivMod_left(node);
                op2     = get_DivMod_right(node);
                mem     = get_DivMod_mem(node);
                mode    = get_DivMod_resmode(node);
-               has_exc = be_get_Proj_for_pn(node, pn_DivMod_X_except) != NULL;
                break;
        default:
                panic("invalid divmod node %+F", node);
        }
 
-       match_arguments(&am, block, op1, op2, match_am);
+       match_arguments(&am, block, op1, op2, NULL, match_am);
 
-       if(!is_NoMem(mem)) {
+       /* Beware: We don't need a Sync, if the memory predecessor of the Div node
+          is the memory of the consumed address. We can have only the second op as address
+          in Div nodes, so check only op2. */
+       if(!is_NoMem(mem) && skip_Proj(mem) != skip_Proj(op2)) {
                new_mem = be_transform_node(mem);
                if(!is_NoMem(addr->mem)) {
                        ir_node *in[2];
@@ -1407,7 +1402,6 @@ static ir_node *create_Div(ir_node *node)
                                           sign_extension, am.new_op2);
        }
 
-       set_ia32_exc_label(new_node, has_exc);
        set_irn_pinned(new_node, get_irn_pinned(node));
 
        set_am_attributes(new_node, &am);
@@ -1443,7 +1437,7 @@ static ir_node *gen_Quot(ir_node *node)
        ir_node  *op1     = get_Quot_left(node);
        ir_node  *op2     = get_Quot_right(node);
 
-       if (USE_SSE2(env_cg)) {
+       if (ia32_cg_config.use_sse2) {
                return gen_binop(node, op1, op2, new_rd_ia32_xDiv, match_am);
        } else {
                return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfdiv, match_am);
@@ -1629,7 +1623,7 @@ static ir_node *gen_Minus(ir_node *node)
 
        if (mode_is_float(mode)) {
                ir_node *new_op = be_transform_node(op);
-               if (USE_SSE2(env_cg)) {
+               if (ia32_cg_config.use_sse2) {
                        /* TODO: non-optimal... if we have many xXors, then we should
                         * rather create a load for the const and use that instead of
                         * several AM nodes... */
@@ -1681,22 +1675,25 @@ static ir_node *gen_Not(ir_node *node) {
  */
 static ir_node *gen_Abs(ir_node *node)
 {
-       ir_node   *block    = be_transform_node(get_nodes_block(node));
-       ir_node   *op       = get_Abs_op(node);
-       ir_node   *new_op   = be_transform_node(op);
-       ir_graph  *irg      = current_ir_graph;
-       dbg_info  *dbgi     = get_irn_dbg_info(node);
-       ir_mode   *mode     = get_irn_mode(node);
-       ir_node   *noreg_gp = ia32_new_NoReg_gp(env_cg);
-       ir_node   *noreg_fp = ia32_new_NoReg_fp(env_cg);
-       ir_node   *nomem    = new_NoMem();
+       ir_node   *block     = get_nodes_block(node);
+       ir_node   *new_block = be_transform_node(block);
+       ir_node   *op        = get_Abs_op(node);
+       ir_graph  *irg       = current_ir_graph;
+       dbg_info  *dbgi      = get_irn_dbg_info(node);
+       ir_mode   *mode      = get_irn_mode(node);
+       ir_node   *noreg_gp  = ia32_new_NoReg_gp(env_cg);
+       ir_node   *nomem     = new_NoMem();
+       ir_node   *new_op;
        ir_node   *new_node;
        int        size;
        ir_entity *ent;
 
        if (mode_is_float(mode)) {
-               if (USE_SSE2(env_cg)) {
-                       new_node = new_rd_ia32_xAnd(dbgi,irg, block, noreg_gp, noreg_gp,
+               new_op = be_transform_node(op);
+
+               if (ia32_cg_config.use_sse2) {
+                       ir_node *noreg_fp = ia32_new_NoReg_xmm(env_cg);
+                       new_node = new_rd_ia32_xAnd(dbgi,irg, new_block, noreg_gp, noreg_gp,
                                                    nomem, new_op, noreg_fp);
 
                        size = get_mode_size_bits(mode);
@@ -1709,26 +1706,31 @@ static ir_node *gen_Abs(ir_node *node)
                        set_ia32_op_type(new_node, ia32_AddrModeS);
                        set_ia32_ls_mode(new_node, mode);
                } else {
-                       new_node = new_rd_ia32_vfabs(dbgi, irg, block, new_op);
+                       new_node = new_rd_ia32_vfabs(dbgi, irg, new_block, new_op);
                        SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
                }
        } else {
-               ir_node *xor;
-               ir_node *pval           = new_rd_ia32_ProduceVal(dbgi, irg, block);
-               ir_node *sign_extension = new_rd_ia32_Cltd(dbgi, irg, block, new_op,
-                                                          pval);
+               ir_node *xor, *pval, *sign_extension;
+
+               if (get_mode_size_bits(mode) == 32) {
+                       new_op = be_transform_node(op);
+               } else {
+                       new_op = create_I2I_Conv(mode, mode_Is, dbgi, block, op, node);
+               }
 
-               assert(get_mode_size_bits(mode) == 32);
+               pval           = new_rd_ia32_ProduceVal(dbgi, irg, new_block);
+               sign_extension = new_rd_ia32_Cltd(dbgi, irg, new_block,
+                                                          new_op, pval);
 
                add_irn_dep(pval, get_irg_frame(irg));
                SET_IA32_ORIG_NODE(sign_extension,ia32_get_old_node_name(env_cg, node));
 
-               xor = new_rd_ia32_Xor(dbgi, irg, block, noreg_gp, noreg_gp, nomem,
-                                     new_op, sign_extension);
+               xor = new_rd_ia32_Xor(dbgi, irg, new_block, noreg_gp, noreg_gp,
+                                     nomem, new_op, sign_extension);
                SET_IA32_ORIG_NODE(xor, ia32_get_old_node_name(env_cg, node));
 
-               new_node = new_rd_ia32_Sub(dbgi, irg, block, noreg_gp, noreg_gp, nomem,
-                                          xor, sign_extension);
+               new_node = new_rd_ia32_Sub(dbgi, irg, new_block, noreg_gp, noreg_gp,
+                                          nomem, xor, sign_extension);
                SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
        }
 
@@ -1807,7 +1809,7 @@ static ir_node *gen_Load(ir_node *node) {
        }
 
        if (mode_is_float(mode)) {
-               if (USE_SSE2(env_cg)) {
+               if (ia32_cg_config.use_sse2) {
                        new_node = new_rd_ia32_xLoad(dbgi, irg, block, base, index, new_mem,
                                                     mode);
                        res_mode = mode_xmm;
@@ -1834,6 +1836,10 @@ static ir_node *gen_Load(ir_node *node) {
        set_ia32_ls_mode(new_node, mode);
        set_address(new_node, &addr);
 
+       if(get_irn_pinned(node) == op_pin_state_floats) {
+               add_ia32_flags(new_node, arch_irn_flags_rematerializable);
+       }
+
        /* make sure we are scheduled behind the initial IncSP/Barrier
         * to avoid spills being placed before it
         */
@@ -1841,8 +1847,6 @@ static ir_node *gen_Load(ir_node *node) {
                add_irn_dep(new_node, get_irg_frame(irg));
        }
 
-       set_ia32_exc_label(new_node,
-                          be_get_Proj_for_pn(node, pn_Load_X_except) != NULL);
        SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
 
        return new_node;
@@ -2017,7 +2021,7 @@ static ir_node *try_create_dest_am(ir_node *node) {
        ir_node  *mem  = get_Store_mem(node);
        ir_node  *ptr  = get_Store_ptr(node);
        ir_mode  *mode = get_irn_mode(val);
-       int       bits = get_mode_size_bits(mode);
+       unsigned  bits = get_mode_size_bits(mode);
        ir_node  *op1;
        ir_node  *op2;
        ir_node  *new_node;
@@ -2225,7 +2229,7 @@ static ir_node *gen_Store(ir_node *node)
                        val = get_Conv_op(val);
                }
                new_val = be_transform_node(val);
-               if (USE_SSE2(env_cg)) {
+               if (ia32_cg_config.use_sse2) {
                        new_node = new_rd_ia32_xStore(dbgi, irg, new_block, addr.base,
                                                      addr.index, addr.mem, new_val);
                } else {
@@ -2262,8 +2266,6 @@ static ir_node *gen_Store(ir_node *node)
        set_ia32_op_type(new_node, ia32_AddrModeD);
        set_ia32_ls_mode(new_node, mode);
 
-       set_ia32_exc_label(new_node,
-                          be_get_Proj_for_pn(node, pn_Store_X_except) != NULL);
        set_address(new_node, &addr);
        SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
 
@@ -2272,12 +2274,14 @@ static ir_node *gen_Store(ir_node *node)
 
 static ir_node *create_Switch(ir_node *node)
 {
-       ir_graph *irg       = current_ir_graph;
-       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);
+       ir_graph *irg        = current_ir_graph;
+       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);
        int       switch_min = INT_MAX;
+       int       switch_max = INT_MIN;
+       long      default_pn = get_Cond_defaultProj(node);
        ir_node  *new_node;
        const ir_edge_t *edge;
 
@@ -2286,9 +2290,18 @@ static ir_node *create_Switch(ir_node *node)
        /* determine the smallest switch case value */
        foreach_out_edge(node, edge) {
                ir_node *proj = get_edge_src_irn(edge);
-               int      pn   = get_Proj_proj(proj);
+               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) (switch_max - switch_min) > 256000) {
+               panic("Size of switch %+F bigger than 256000", node);
        }
 
        if (switch_min != 0) {
@@ -2302,8 +2315,7 @@ static ir_node *create_Switch(ir_node *node)
                SET_IA32_ORIG_NODE(new_sel, ia32_get_old_node_name(env_cg, node));
        }
 
-       new_node = new_rd_ia32_SwitchJmp(dbgi, irg, block, new_sel,
-                                        get_Cond_defaultProj(node));
+       new_node = new_rd_ia32_SwitchJmp(dbgi, irg, block, new_sel, default_pn);
        SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
 
        return new_node;
@@ -2401,14 +2413,14 @@ static ir_node *create_Fucom(ir_node *node)
        ir_node  *new_right;
        ir_node  *new_node;
 
-       if(transform_config.use_fucomi) {
+       if(ia32_cg_config.use_fucomi) {
                new_right = be_transform_node(right);
                new_node  = new_rd_ia32_vFucomi(dbgi, irg, new_block, new_left,
                                                new_right, 0);
                set_ia32_commutative(new_node);
                SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
        } else {
-               if(transform_config.use_ftst && is_Const_null(right)) {
+               if(ia32_cg_config.use_ftst && is_Const_0(right)) {
                        new_node = new_rd_ia32_vFtstFnstsw(dbgi, irg, new_block, new_left,
                                                           0);
                } else {
@@ -2440,7 +2452,8 @@ static ir_node *create_Ucomi(ir_node *node)
        ia32_address_mode_t  am;
        ia32_address_t      *addr = &am.addr;
 
-       match_arguments(&am, src_block, left, right, match_commutative | match_am);
+       match_arguments(&am, src_block, left, right, NULL,
+                       match_commutative | match_am);
 
        new_node = new_rd_ia32_Ucomi(dbgi, irg, new_block, addr->base, addr->index,
                                     addr->mem, am.new_op1, am.new_op2,
@@ -2488,7 +2501,7 @@ static ir_node *gen_Cmp(ir_node *node)
        int                  cmp_unsigned;
 
        if(mode_is_float(cmp_mode)) {
-               if (USE_SSE2(env_cg)) {
+               if (ia32_cg_config.use_sse2) {
                        return create_Ucomi(node);
                } else {
                        return create_Fucom(node);
@@ -2509,7 +2522,8 @@ static ir_node *gen_Cmp(ir_node *node)
                        ir_node *and_right = get_And_right(left);
                        ir_mode *mode      = get_irn_mode(and_left);
 
-                       match_arguments(&am, block, and_left, and_right, match_commutative |
+                       match_arguments(&am, block, and_left, and_right, NULL,
+                                       match_commutative |
                                        match_am | match_8bit_am | match_16bit_am |
                                        match_am_and_immediates | match_immediate |
                                        match_8bit | match_16bit);
@@ -2524,8 +2538,9 @@ static ir_node *gen_Cmp(ir_node *node)
                                                            am.new_op2, am.ins_permuted, cmp_unsigned);
                        }
                } else {
-                       match_arguments(&am, block, NULL, left, match_am | match_8bit_am |
-                                       match_16bit_am | match_8bit | match_16bit);
+                       match_arguments(&am, block, NULL, left, NULL,
+                                       match_am | match_8bit_am | match_16bit_am |
+                                       match_8bit | match_16bit);
                        if (am.op_type == ia32_AddrModeS) {
                                /* Cmp(AM, 0) */
                                ir_node *imm_zero = try_create_Immediate(right, 0);
@@ -2556,8 +2571,9 @@ static ir_node *gen_Cmp(ir_node *node)
                }
        } else {
                /* Cmp(left, right) */
-               match_arguments(&am, block, left, right, match_commutative | match_am |
-                               match_8bit_am | match_16bit_am | match_am_and_immediates |
+               match_arguments(&am, block, left, right, NULL,
+                               match_commutative | match_am | match_8bit_am |
+                               match_16bit_am | match_am_and_immediates |
                                match_immediate | match_8bit | match_16bit);
                if (get_mode_size_bits(cmp_mode) == 8) {
                        new_node = new_rd_ia32_Cmp8Bit(dbgi, irg, new_block, addr->base,
@@ -2581,7 +2597,8 @@ static ir_node *gen_Cmp(ir_node *node)
        return new_node;
 }
 
-static ir_node *create_CMov(ir_node *node, ir_node *new_flags, pn_Cmp pnc)
+static ir_node *create_CMov(ir_node *node, ir_node *flags, ir_node *new_flags,
+                            pn_Cmp pnc)
 {
        ir_graph            *irg           = current_ir_graph;
        dbg_info            *dbgi          = get_irn_dbg_info(node);
@@ -2594,7 +2611,7 @@ static ir_node *create_CMov(ir_node *node, ir_node *new_flags, pn_Cmp pnc)
        ia32_address_mode_t  am;
        ia32_address_t      *addr;
 
-       assert(transform_config.use_cmov);
+       assert(ia32_cg_config.use_cmov);
        assert(mode_needs_gp_reg(get_irn_mode(val_true)));
 
        addr = &am.addr;
@@ -2602,7 +2619,7 @@ static ir_node *create_CMov(ir_node *node, ir_node *new_flags, pn_Cmp pnc)
        match_flags = match_commutative | match_am | match_16bit_am |
                      match_mode_neutral;
 
-       match_arguments(&am, block, val_false, val_true, match_flags);
+       match_arguments(&am, block, val_false, val_true, flags, match_flags);
 
        new_node = new_rd_ia32_CMov(dbgi, irg, new_block, addr->base, addr->index,
                                    addr->mem, am.new_op1, am.new_op2, new_flags,
@@ -2669,7 +2686,7 @@ static ir_node *gen_Psi(ir_node *node)
        } else if(is_Const_0(psi_true) && is_Const_1(psi_default)) {
                new_node = create_set_32bit(dbgi, new_block, flags, pnc, node, 1);
        } else {
-               new_node = create_CMov(node, flags, pnc);
+               new_node = create_CMov(node, cond, flags, pnc);
        }
        return new_node;
 }
@@ -2791,7 +2808,8 @@ static ir_node *gen_x87_gp_to_fp(ir_node *node, ir_mode *src_mode) {
        if (src_mode == mode_Is) {
                ia32_address_mode_t am;
 
-               match_arguments(&am, src_block, NULL, op, match_am | match_try_am);
+               match_arguments(&am, src_block, NULL, op, NULL,
+                               match_am | match_try_am);
                if (am.op_type == ia32_AddrModeS) {
                        ia32_address_t *addr = &am.addr;
 
@@ -2893,6 +2911,7 @@ static ir_node *create_I2I_Conv(ir_mode *src_mode, ir_mode *tgt_mode,
        ia32_address_mode_t  am;
        ia32_address_t      *addr = &am.addr;
 
+       (void) node;
        if (src_bits < tgt_bits) {
                smaller_mode = src_mode;
                smaller_bits = src_bits;
@@ -2908,8 +2927,9 @@ static ir_node *create_I2I_Conv(ir_mode *src_mode, ir_mode *tgt_mode,
        }
 #endif
 
-       match_arguments(&am, block, NULL, op,
-                       match_8bit | match_16bit | match_8bit_am | match_16bit_am);
+       match_arguments(&am, block, NULL, op, NULL,
+                       match_8bit | match_16bit |
+                       match_am | match_8bit_am | match_16bit_am);
        if (smaller_bits == 8) {
                new_node = new_rd_ia32_Conv_I2I8Bit(dbgi, irg, new_block, addr->base,
                                                    addr->index, addr->mem, am.new_op2,
@@ -2956,7 +2976,7 @@ static ir_node *gen_Conv(ir_node *node) {
 
        if (src_mode == tgt_mode) {
                if (get_Conv_strict(node)) {
-                       if (USE_SSE2(env_cg)) {
+                       if (ia32_cg_config.use_sse2) {
                                /* when we are in SSE mode, we can kill all strict no-op conversion */
                                return be_transform_node(op);
                        }
@@ -2979,7 +2999,7 @@ static ir_node *gen_Conv(ir_node *node) {
                        }
 
                        /* ... to float */
-                       if (USE_SSE2(env_cg)) {
+                       if (ia32_cg_config.use_sse2) {
                                DB((dbg, LEVEL_1, "create Conv(float, float) ..."));
                                res = new_rd_ia32_Conv_FP2FP(dbgi, irg, new_block, noreg, noreg,
                                                             nomem, new_op);
@@ -2996,7 +3016,7 @@ static ir_node *gen_Conv(ir_node *node) {
                } else {
                        /* ... to int */
                        DB((dbg, LEVEL_1, "create Conv(float, int) ..."));
-                       if (USE_SSE2(env_cg)) {
+                       if (ia32_cg_config.use_sse2) {
                                res = new_rd_ia32_Conv_FP2I(dbgi, irg, new_block, noreg, noreg,
                                                            nomem, new_op);
                                set_ia32_ls_mode(res, src_mode);
@@ -3009,7 +3029,7 @@ static ir_node *gen_Conv(ir_node *node) {
                if (mode_is_float(tgt_mode)) {
                        /* ... to float */
                        DB((dbg, LEVEL_1, "create Conv(int, float) ..."));
-                       if (USE_SSE2(env_cg)) {
+                       if (ia32_cg_config.use_sse2) {
                                new_op = be_transform_node(op);
                                res = new_rd_ia32_Conv_I2FP(dbgi, irg, new_block, noreg, noreg,
                                                            nomem, new_op);
@@ -3187,8 +3207,8 @@ static const arch_register_req_t no_register_req = {
        arch_register_req_type_none,
        NULL,                         /* regclass */
        NULL,                         /* limit bitset */
-       { -1, -1 },                   /* same pos */
-       -1                            /* different pos */
+       0,                            /* same pos */
+                                   /* different pos */
 };
 
 /**
@@ -3214,7 +3234,7 @@ static void parse_asm_constraint(int pos, constraint_t *constraint, const char *
        ir_graph                    *irg = current_ir_graph;
        struct obstack              *obst = get_irg_obstack(irg);
        arch_register_req_t         *req;
-       unsigned                    *limited_ptr;
+       unsigned                    *limited_ptr = NULL;
        int                          p;
        int                          same_as = -1;
 
@@ -3224,7 +3244,7 @@ static void parse_asm_constraint(int pos, constraint_t *constraint, const char *
                /* a memory constraint: no need to do anything in backend about it
                 * (the dependencies are already respected by the memory edge of
                 * the node) */
-               constraint->req    = &no_register_req;
+               constraint->req = &no_register_req;
                return;
        }
 
@@ -3406,9 +3426,8 @@ static void parse_asm_constraint(int pos, constraint_t *constraint, const char *
                req->cls             = other_constr->cls;
                req->type            = arch_register_req_type_should_be_same;
                req->limited         = NULL;
-               req->other_same[0]   = pos;
-               req->other_same[1]   = -1;
-               req->other_different = -1;
+               req->other_same      = 1U << pos;
+               req->other_different = 0;
 
                /* switch constraints. This is because in firm we have same_as
                 * constraints on the output constraints while in the gcc asm syntax
@@ -3454,13 +3473,53 @@ static void parse_asm_constraint(int pos, constraint_t *constraint, const char *
 }
 
 static void parse_clobber(ir_node *node, int pos, constraint_t *constraint,
-                          const char *c)
+                          const char *clobber)
 {
-       (void) node;
+       ir_graph                    *irg  = get_irn_irg(node);
+       struct obstack              *obst = get_irg_obstack(irg);
+       const arch_register_t       *reg  = NULL;
+       int                          c;
+       size_t                       r;
+       arch_register_req_t         *req;
+       const arch_register_class_t *cls;
+       unsigned                    *limited;
+
        (void) pos;
-       (void) constraint;
-       (void) c;
-       panic("Clobbers not supported yet");
+
+       /* TODO: construct a hashmap instead of doing linear search for clobber
+        * register */
+       for(c = 0; c < N_CLASSES; ++c) {
+               cls = & ia32_reg_classes[c];
+               for(r = 0; r < cls->n_regs; ++r) {
+                       const arch_register_t *temp_reg = arch_register_for_index(cls, r);
+                       if(strcmp(temp_reg->name, clobber) == 0
+                                       || (c == CLASS_ia32_gp && strcmp(temp_reg->name+1, clobber) == 0)) {
+                               reg = temp_reg;
+                               break;
+                       }
+               }
+               if(reg != NULL)
+                       break;
+       }
+       if(reg == NULL) {
+               panic("Register '%s' mentioned in asm clobber is unknown\n", clobber);
+               return;
+       }
+
+       assert(reg->index < 32);
+
+       limited  = obstack_alloc(obst, sizeof(limited[0]));
+       *limited = 1 << reg->index;
+
+       req          = obstack_alloc(obst, sizeof(req[0]));
+       memset(req, 0, sizeof(req[0]));
+       req->type    = arch_register_req_type_limited;
+       req->cls     = cls;
+       req->limited = limited;
+
+       constraint->req                = req;
+       constraint->immediate_possible = 0;
+       constraint->immediate_type     = 0;
 }
 
 static int is_memory_op(const ir_asm_constraint *constraint)
@@ -3509,6 +3568,9 @@ static ir_node *gen_ASM(ir_node *node)
        n_out_constraints = get_ASM_n_output_constraints(node);
        n_clobbers        = get_ASM_n_clobbers(node);
        out_arity         = n_out_constraints + n_clobbers;
+       /* hack to keep space for mem proj */
+       if(n_clobbers > 0)
+               out_arity += 1;
 
        in_constraints  = get_ASM_input_constraints(node);
        out_constraints = get_ASM_output_constraints(node);
@@ -3531,14 +3593,19 @@ static ir_node *gen_ASM(ir_node *node)
 
                        if(constraint->pos > reg_map_size)
                                reg_map_size = constraint->pos;
-               } else {
+
+                       out_reg_reqs[i] = parsed_constraint.req;
+               } else if(i < out_arity - 1) {
                        ident *glob_id = clobbers [i - n_out_constraints];
+                       assert(glob_id != NULL);
                        c = get_id_str(glob_id);
                        parse_clobber(node, i, &parsed_constraint, c);
-               }
 
-               out_reg_reqs[i] = parsed_constraint.req;
+                       out_reg_reqs[i+1] = parsed_constraint.req;
+               }
        }
+       if(n_clobbers > 1)
+               out_reg_reqs[n_out_constraints] = &no_register_req;
 
        /* construct input constraints */
        in_reg_reqs = obstack_alloc(obst, arity * sizeof(in_reg_reqs[0]));
@@ -3613,16 +3680,6 @@ static ir_node *gen_ASM(ir_node *node)
        return new_node;
 }
 
-/********************************************
- *  _                          _
- * | |                        | |
- * | |__   ___ _ __   ___   __| | ___  ___
- * | '_ \ / _ \ '_ \ / _ \ / _` |/ _ \/ __|
- * | |_) |  __/ | | | (_) | (_| |  __/\__ \
- * |_.__/ \___|_| |_|\___/ \__,_|\___||___/
- *
- ********************************************/
-
 /**
  * Transforms a FrameAddr into an ia32 Add.
  */
@@ -3664,7 +3721,7 @@ static ir_node *gen_be_Return(ir_node *node) {
        int       pn_ret_val, pn_ret_mem, arity, i;
 
        assert(ret_val != NULL);
-       if (be_Return_get_n_rets(node) < 1 || ! USE_SSE2(env_cg)) {
+       if (be_Return_get_n_rets(node) < 1 || ! ia32_cg_config.use_sse2) {
                return be_duplicate_node(node);
        }
 
@@ -3777,7 +3834,7 @@ static ir_node *gen_Unknown(ir_node *node) {
        ir_mode *mode = get_irn_mode(node);
 
        if (mode_is_float(mode)) {
-               if (USE_SSE2(env_cg)) {
+               if (ia32_cg_config.use_sse2) {
                        return ia32_new_Unknown_xmm(env_cg);
                } else {
                        /* Unknown nodes are buggy in x87 sim, use zero for now... */
@@ -3810,7 +3867,7 @@ static ir_node *gen_Phi(ir_node *node) {
                /* all integer operations are on 32bit registers now */
                mode = mode_Iu;
        } else if(mode_is_float(mode)) {
-               if (USE_SSE2(env_cg)) {
+               if (ia32_cg_config.use_sse2) {
                        mode = mode_xmm;
                } else {
                        mode = mode_vfp;
@@ -3846,7 +3903,7 @@ static ir_node *gen_IJmp(ir_node *node)
 
        assert(get_irn_mode(op) == mode_P);
 
-       match_arguments(&am, block, NULL, op,
+       match_arguments(&am, block, NULL, op, NULL,
                        match_am | match_8bit_am | match_16bit_am |
                        match_immediate | match_8bit | match_16bit);
 
@@ -3860,19 +3917,6 @@ static ir_node *gen_IJmp(ir_node *node)
        return new_node;
 }
 
-
-/**********************************************************************
- *  _                                _                   _
- * | |                              | |                 | |
- * | | _____      _____ _ __ ___  __| |  _ __   ___   __| | ___  ___
- * | |/ _ \ \ /\ / / _ \ '__/ _ \/ _` | | '_ \ / _ \ / _` |/ _ \/ __|
- * | | (_) \ V  V /  __/ | |  __/ (_| | | | | | (_) | (_| |  __/\__ \
- * |_|\___/ \_/\_/ \___|_|  \___|\__,_| |_| |_|\___/ \__,_|\___||___/
- *
- **********************************************************************/
-
-/* These nodes are created in intrinsic lowering (64bit -> 32bit) */
-
 typedef ir_node *construct_load_func(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *base, ir_node *index, \
                                      ir_node *mem);
 
@@ -3950,8 +3994,8 @@ static ir_node *gen_lowered_Store(ir_node *node, construct_store_func func)
 
 static ir_node *gen_ia32_l_ShlDep(ir_node *node)
 {
-       ir_node *left  = get_irn_n(node, n_ia32_l_ShlDep_left);
-       ir_node *right = get_irn_n(node, n_ia32_l_ShlDep_right);
+       ir_node *left  = get_irn_n(node, n_ia32_l_ShlDep_val);
+       ir_node *right = get_irn_n(node, n_ia32_l_ShlDep_count);
 
        return gen_shift_binop(node, left, right, new_rd_ia32_Shl,
                               match_immediate | match_mode_neutral);
@@ -3959,16 +4003,16 @@ static ir_node *gen_ia32_l_ShlDep(ir_node *node)
 
 static ir_node *gen_ia32_l_ShrDep(ir_node *node)
 {
-       ir_node *left  = get_irn_n(node, n_ia32_l_ShrDep_left);
-       ir_node *right = get_irn_n(node, n_ia32_l_ShrDep_right);
+       ir_node *left  = get_irn_n(node, n_ia32_l_ShrDep_val);
+       ir_node *right = get_irn_n(node, n_ia32_l_ShrDep_count);
        return gen_shift_binop(node, left, right, new_rd_ia32_Shr,
                               match_immediate);
 }
 
 static ir_node *gen_ia32_l_SarDep(ir_node *node)
 {
-       ir_node *left  = get_irn_n(node, n_ia32_l_SarDep_left);
-       ir_node *right = get_irn_n(node, n_ia32_l_SarDep_right);
+       ir_node *left  = get_irn_n(node, n_ia32_l_SarDep_val);
+       ir_node *right = get_irn_n(node, n_ia32_l_SarDep_count);
        return gen_shift_binop(node, left, right, new_rd_ia32_Sar,
                               match_immediate);
 }
@@ -4153,131 +4197,78 @@ static ir_node *gen_lowered_64bit_shifts(ir_node *node, ir_node *high,
 
 static ir_node *gen_ia32_l_ShlD(ir_node *node)
 {
-       ir_node *high  = get_irn_n(node, n_ia32_l_ShlD_high);
-       ir_node *low   = get_irn_n(node, n_ia32_l_ShlD_low);
+       ir_node *high  = get_irn_n(node, n_ia32_l_ShlD_val_high);
+       ir_node *low   = get_irn_n(node, n_ia32_l_ShlD_val_low);
        ir_node *count = get_irn_n(node, n_ia32_l_ShlD_count);
        return gen_lowered_64bit_shifts(node, high, low, count);
 }
 
 static ir_node *gen_ia32_l_ShrD(ir_node *node)
 {
-       ir_node *high  = get_irn_n(node, n_ia32_l_ShrD_high);
-       ir_node *low   = get_irn_n(node, n_ia32_l_ShrD_low);
+       ir_node *high  = get_irn_n(node, n_ia32_l_ShrD_val_high);
+       ir_node *low   = get_irn_n(node, n_ia32_l_ShrD_val_low);
        ir_node *count = get_irn_n(node, n_ia32_l_ShrD_count);
        return gen_lowered_64bit_shifts(node, high, low, count);
 }
 
-/**
- * In case SSE Unit is used, the node is transformed into a vfst + xLoad.
- */
-static ir_node *gen_ia32_l_X87toSSE(ir_node *node) {
-       ir_node         *block   = be_transform_node(get_nodes_block(node));
-       ir_node         *val     = get_irn_n(node, 1);
-       ir_node         *new_val = be_transform_node(val);
-       ia32_code_gen_t *cg      = env_cg;
-       ir_node         *res     = NULL;
-       ir_graph        *irg     = current_ir_graph;
-       dbg_info        *dbgi;
-       ir_node         *noreg, *new_ptr, *new_mem;
-       ir_node         *ptr, *mem;
-
-       if (USE_SSE2(cg)) {
-               return new_val;
-       }
+static ir_node *gen_ia32_l_LLtoFloat(ir_node *node) {
+       ir_node  *src_block    = get_nodes_block(node);
+       ir_node  *block        = be_transform_node(src_block);
+       ir_graph *irg          = current_ir_graph;
+       dbg_info *dbgi         = get_irn_dbg_info(node);
+       ir_node  *frame        = get_irg_frame(irg);
+       ir_node  *noreg        = ia32_new_NoReg_gp(env_cg);
+       ir_node  *nomem        = new_NoMem();
+       ir_node  *val_low      = get_irn_n(node, n_ia32_l_LLtoFloat_val_low);
+       ir_node  *val_high     = get_irn_n(node, n_ia32_l_LLtoFloat_val_high);
+       ir_node  *new_val_low  = be_transform_node(val_low);
+       ir_node  *new_val_high = be_transform_node(val_high);
+       ir_node  *in[2];
+       ir_node  *sync;
+       ir_node  *fild;
+       ir_node  *store_low;
+       ir_node  *store_high;
 
-       mem     = get_irn_n(node, 2);
-       new_mem = be_transform_node(mem);
-       ptr     = get_irn_n(node, 0);
-       new_ptr = be_transform_node(ptr);
-       noreg   = ia32_new_NoReg_gp(cg);
-       dbgi    = get_irn_dbg_info(node);
-
-       /* Store x87 -> MEM */
-       res = new_rd_ia32_vfst(dbgi, irg, block, new_ptr, noreg, new_mem, new_val,
-                              get_ia32_ls_mode(node));
-       set_ia32_frame_ent(res, get_ia32_frame_ent(node));
-       set_ia32_use_frame(res);
-       set_ia32_ls_mode(res, get_ia32_ls_mode(node));
-       set_ia32_op_type(res, ia32_AddrModeD);
-
-       /* Load MEM -> SSE */
-       res = new_rd_ia32_xLoad(dbgi, irg, block, new_ptr, noreg, res,
-                               get_ia32_ls_mode(node));
-       set_ia32_frame_ent(res, get_ia32_frame_ent(node));
-       set_ia32_use_frame(res);
-       set_ia32_op_type(res, ia32_AddrModeS);
-       res = new_rd_Proj(dbgi, irg, block, res, mode_xmm, pn_ia32_xLoad_res);
+       if(!mode_is_signed(get_irn_mode(val_high))) {
+               panic("unsigned long long -> float not supported yet (%+F)", node);
+       }
 
-       return res;
-}
+       /* do a store */
+       store_low = new_rd_ia32_Store(dbgi, irg, block, frame, noreg, nomem,
+                                     new_val_low);
+       store_high = new_rd_ia32_Store(dbgi, irg, block, frame, noreg, nomem,
+                                      new_val_high);
+       SET_IA32_ORIG_NODE(store_low, ia32_get_old_node_name(env_cg, node));
+       SET_IA32_ORIG_NODE(store_high, ia32_get_old_node_name(env_cg, node));
+
+       set_ia32_use_frame(store_low);
+       set_ia32_use_frame(store_high);
+       set_ia32_op_type(store_low, ia32_AddrModeD);
+       set_ia32_op_type(store_high, ia32_AddrModeD);
+       set_ia32_ls_mode(store_low, mode_Iu);
+       set_ia32_ls_mode(store_high, mode_Is);
+       add_ia32_am_offs_int(store_high, 4);
+
+       in[0] = store_low;
+       in[1] = store_high;
+       sync  = new_rd_Sync(dbgi, irg, block, 2, in);
 
-/**
- * In case SSE Unit is used, the node is transformed into a xStore + vfld.
- */
-static ir_node *gen_ia32_l_SSEtoX87(ir_node *node) {
-       ir_node         *block   = be_transform_node(get_nodes_block(node));
-       ir_node         *val     = get_irn_n(node, 1);
-       ir_node         *new_val = be_transform_node(val);
-       ia32_code_gen_t *cg      = env_cg;
-       ir_graph        *irg     = current_ir_graph;
-       ir_node         *res     = NULL;
-       ir_entity       *fent    = get_ia32_frame_ent(node);
-       ir_mode         *lsmode  = get_ia32_ls_mode(node);
-       int             offs     = 0;
-       ir_node         *noreg, *new_ptr, *new_mem;
-       ir_node         *ptr, *mem;
-       dbg_info        *dbgi;
-
-       if (! USE_SSE2(cg)) {
-               /* SSE unit is not used -> skip this node. */
-               return new_val;
-       }
+       /* do a fild */
+       fild = new_rd_ia32_vfild(dbgi, irg, block, frame, noreg, sync);
 
-       ptr     = get_irn_n(node, 0);
-       new_ptr = be_transform_node(ptr);
-       mem     = get_irn_n(node, 2);
-       new_mem = be_transform_node(mem);
-       noreg   = ia32_new_NoReg_gp(cg);
-       dbgi    = get_irn_dbg_info(node);
-
-       /* Store SSE -> MEM */
-       if (is_ia32_xLoad(skip_Proj(new_val))) {
-               ir_node *ld = skip_Proj(new_val);
-
-               /* we can vfld the value directly into the fpu */
-               fent = get_ia32_frame_ent(ld);
-               ptr  = get_irn_n(ld, 0);
-               offs = get_ia32_am_offs_int(ld);
-       } else {
-               res = new_rd_ia32_xStore(dbgi, irg, block, new_ptr, noreg, new_mem,
-                                        new_val);
-               set_ia32_frame_ent(res, fent);
-               set_ia32_use_frame(res);
-               set_ia32_ls_mode(res, lsmode);
-               set_ia32_op_type(res, ia32_AddrModeD);
-               mem = res;
-       }
+       set_ia32_use_frame(fild);
+       set_ia32_op_type(fild, ia32_AddrModeS);
+       set_ia32_ls_mode(fild, mode_Ls);
 
-       /* Load MEM -> x87 */
-       res = new_rd_ia32_vfld(dbgi, irg, block, new_ptr, noreg, new_mem, lsmode);
-       set_ia32_frame_ent(res, fent);
-       set_ia32_use_frame(res);
-       add_ia32_am_offs_int(res, offs);
-       set_ia32_op_type(res, ia32_AddrModeS);
-       res = new_rd_Proj(dbgi, irg, block, res, mode_vfp, pn_ia32_vfld_res);
+       SET_IA32_ORIG_NODE(fild, ia32_get_old_node_name(env_cg, node));
 
-       return res;
+       return new_r_Proj(irg, block, fild, mode_vfp, pn_ia32_vfild_res);
 }
 
-/*********************************************************
- *                  _             _      _
- *                 (_)           | |    (_)
- *  _ __ ___   __ _ _ _ __     __| |_ __ ___   _____ _ __
- * | '_ ` _ \ / _` | | '_ \   / _` | '__| \ \ / / _ \ '__|
- * | | | | | | (_| | | | | | | (_| | |  | |\ V /  __/ |
- * |_| |_| |_|\__,_|_|_| |_|  \__,_|_|  |_| \_/ \___|_|
- *
- *********************************************************/
+static ir_node *gen_ia32_l_FloattoLL(ir_node *node) {
+       (void) node;
+       panic("LLtoFloat NIY");
+}
 
 /**
  * the BAD transformer.
@@ -4371,15 +4362,22 @@ static ir_node *gen_Proj_Load(ir_node *node) {
        /* renumber the proj */
        new_pred = be_transform_node(pred);
        if (is_ia32_Load(new_pred)) {
-               if (proj == pn_Load_res) {
-                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu,
-                                          pn_ia32_Load_res);
-               } else if (proj == pn_Load_M) {
-                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_M,
-                                          pn_ia32_Load_M);
+               switch (proj) {
+               case pn_Load_res:
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Load_res);
+               case pn_Load_M:
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Load_M);
+               case pn_Load_X_regular:
+                       return new_rd_Jmp(dbgi, irg, block);
+               case pn_Load_X_except:
+                       /* This Load might raise an exception. Mark it. */
+                       set_ia32_exc_label(new_pred, 1);
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_Load_X_exc);
+               default:
+                       break;
                }
-       } else if(is_ia32_Conv_I2I(new_pred)
-                       || is_ia32_Conv_I2I8Bit(new_pred)) {
+       } else if (is_ia32_Conv_I2I(new_pred) ||
+                  is_ia32_Conv_I2I8Bit(new_pred)) {
                set_irn_mode(new_pred, mode_T);
                if (proj == pn_Load_res) {
                        return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_res);
@@ -4387,20 +4385,34 @@ static ir_node *gen_Proj_Load(ir_node *node) {
                        return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_mem);
                }
        } else if (is_ia32_xLoad(new_pred)) {
-               if (proj == pn_Load_res) {
-                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_xmm,
-                                          pn_ia32_xLoad_res);
-               } else if (proj == pn_Load_M) {
-                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_M,
-                                          pn_ia32_xLoad_M);
+               switch (proj) {
+               case pn_Load_res:
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_xmm, pn_ia32_xLoad_res);
+               case pn_Load_M:
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_xLoad_M);
+               case pn_Load_X_regular:
+                       return new_rd_Jmp(dbgi, irg, block);
+               case pn_Load_X_except:
+                       /* This Load might raise an exception. Mark it. */
+                       set_ia32_exc_label(new_pred, 1);
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_xLoad_X_exc);
+               default:
+                       break;
                }
        } else if (is_ia32_vfld(new_pred)) {
-               if (proj == pn_Load_res) {
-                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_vfp,
-                                          pn_ia32_vfld_res);
-               } else if (proj == pn_Load_M) {
-                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_M,
-                                          pn_ia32_vfld_M);
+               switch (proj) {
+               case pn_Load_res:
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_vfp, pn_ia32_vfld_res);
+               case pn_Load_M:
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_vfld_M);
+               case pn_Load_X_regular:
+                       return new_rd_Jmp(dbgi, irg, block);
+               case pn_Load_X_except:
+                       /* This Load might raise an exception. Mark it. */
+                       set_ia32_exc_label(new_pred, 1);
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_xLoad_X_exc);
+               default:
+                       break;
                }
        } else {
                /* can happen for ProJMs when source address mode happened for the
@@ -4409,7 +4421,7 @@ static ir_node *gen_Proj_Load(ir_node *node) {
                /* however it should not be the result proj, as that would mean the
                   load had multiple users and should not have been used for
                   SourceAM */
-               if(proj != pn_Load_M) {
+               if (proj != pn_Load_M) {
                        panic("internal error: transformed node not a Load");
                }
                return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, 1);
@@ -4440,6 +4452,11 @@ static ir_node *gen_Proj_DivMod(ir_node *node) {
                        return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Div_M);
                case pn_Div_res:
                        return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_div_res);
+               case pn_Div_X_regular:
+                       return new_rd_Jmp(dbgi, irg, block);
+               case pn_Div_X_except:
+                       set_ia32_exc_label(new_pred, 1);
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_Div_X_exc);
                default:
                        break;
                }
@@ -4450,6 +4467,9 @@ static ir_node *gen_Proj_DivMod(ir_node *node) {
                        return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Div_M);
                case pn_Mod_res:
                        return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_mod_res);
+               case pn_Mod_X_except:
+                       set_ia32_exc_label(new_pred, 1);
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_Div_X_exc);
                default:
                        break;
                }
@@ -4462,6 +4482,11 @@ static ir_node *gen_Proj_DivMod(ir_node *node) {
                        return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_div_res);
                case pn_DivMod_res_mod:
                        return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_mod_res);
+               case pn_DivMod_X_regular:
+                       return new_rd_Jmp(dbgi, irg, block);
+               case pn_DivMod_X_except:
+                       set_ia32_exc_label(new_pred, 1);
+                       return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_Div_X_exc);
                default:
                        break;
                }
@@ -4605,9 +4630,8 @@ static ir_node *gen_Proj_be_Call(ir_node *node) {
                                           pn_ia32_xLoad_M);
                }
        }
-       if (USE_SSE2(env_cg) && proj >= pn_be_Call_first_res
-                       && proj < (pn_be_Call_first_res + n_res) && mode_is_float(mode)
-                       && USE_SSE2(env_cg)) {
+       if (ia32_cg_config.use_sse2 && proj >= pn_be_Call_first_res
+                       && proj < (pn_be_Call_first_res + n_res) && mode_is_float(mode)) {
                ir_node *fstp;
                ir_node *frame = get_irg_frame(irg);
                ir_node *noreg = ia32_new_NoReg_gp(env_cg);
@@ -4654,24 +4678,9 @@ static ir_node *gen_Proj_be_Call(ir_node *node) {
  */
 static ir_node *gen_Proj_Cmp(ir_node *node)
 {
-       (void) node;
-       panic("not all mode_b nodes are lowered");
-
-#if 0
-       /* normally Cmps are processed when looking at Cond nodes, but this case
-        * can happen in complicated Psi conditions */
-       dbg_info *dbgi      = get_irn_dbg_info(node);
-       ir_node  *block     = get_nodes_block(node);
-       ir_node  *new_block = be_transform_node(block);
-       ir_node  *cmp       = get_Proj_pred(node);
-       ir_node  *new_cmp   = be_transform_node(cmp);
-       long      pnc       = get_Proj_proj(node);
-       ir_node  *res;
-
-       res = create_set_32bit(dbgi, new_block, new_cmp, pnc, node, 0);
-
-       return res;
-#endif
+       /* this probably means not all mode_b nodes were lowered... */
+       panic("trying to directly transform Proj_Cmp %+F (mode_b not lowered?)",
+             node);
 }
 
 /**
@@ -4805,8 +4814,8 @@ static void register_transformers(void)
        GEN(ia32_l_Load);
        GEN(ia32_l_vfist);
        GEN(ia32_l_Store);
-       GEN(ia32_l_X87toSSE);
-       GEN(ia32_l_SSEtoX87);
+       GEN(ia32_l_LLtoFloat);
+       GEN(ia32_l_FloattoLL);
 
        GEN(Const);
        GEN(SymConst);
@@ -4941,23 +4950,14 @@ void ia32_add_missing_keeps(ia32_code_gen_t *cg)
 void ia32_transform_graph(ia32_code_gen_t *cg) {
        int cse_last;
        ir_graph *irg = cg->irg;
-       int opt_arch = cg->isa->opt_arch;
-       int arch     = cg->isa->arch;
-
-       /* TODO: look at cpu and fill transform config in with that... */
-       transform_config.use_incdec = 1;
-       transform_config.use_sse2   = 0;
-       transform_config.use_ffreep = ARCH_ATHLON(opt_arch);
-       transform_config.use_ftst   = 0;
-       transform_config.use_femms  = ARCH_ATHLON(opt_arch) && ARCH_MMX(arch) && ARCH_AMD(arch);
-       transform_config.use_fucomi = 1;
-       transform_config.use_cmov   = IS_P6_ARCH(arch);
 
        register_transformers();
        env_cg       = cg;
        initial_fpcw = NULL;
 
+BE_TIMER_PUSH(t_heights);
        heights      = heights_new(irg);
+BE_TIMER_POP(t_heights);
        ia32_calculate_non_address_mode_nodes(cg->birg);
 
        /* the transform phase is not safe for CSE (yet) because several nodes get