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Diffstat (limited to 'ortho/gcc/ortho-lang.c')
| -rw-r--r-- | ortho/gcc/ortho-lang.c | 2052 |
1 files changed, 2052 insertions, 0 deletions
diff --git a/ortho/gcc/ortho-lang.c b/ortho/gcc/ortho-lang.c new file mode 100644 index 000000000..609ec737e --- /dev/null +++ b/ortho/gcc/ortho-lang.c @@ -0,0 +1,2052 @@ +#include <stddef.h> +#include <math.h> +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tm.h" +#include "tree.h" +#include "tm_p.h" +#include "defaults.h" +#include "ggc.h" +#include "diagnostic.h" +#include "langhooks.h" +#include "langhooks-def.h" +#include "toplev.h" +#include "opts.h" +#include "options.h" +#include "real.h" +#include "tree-gimple.h" +#include "function.h" +#include "cgraph.h" + +const int tree_identifier_size = sizeof (struct tree_identifier); + +struct binding_level GTY(()) +{ + /* The BIND_EXPR node for this binding. */ + tree bind; + + /* The BLOCK node for this binding. */ + tree block; + + /* If true, stack must be saved (alloca is used). */ + int save_stack; + + /* Parent binding level. */ + struct binding_level *prev; + + /* Decls in this binding. */ + tree first_decl; + tree last_decl; + + /* Blocks in this binding. */ + tree first_block; + tree last_block; +}; + +/* The current binding level. */ +static GTY(()) struct binding_level *cur_binding_level = NULL; + +/* Chain of unused binding levels. */ +static GTY(()) struct binding_level *old_binding_levels = NULL; + +static tree cur_stmts = NULL_TREE; + +static void +push_binding (void) +{ + struct binding_level *res; + + if (old_binding_levels == NULL) + res = (struct binding_level *) ggc_alloc (sizeof (struct binding_level)); + else + { + res = old_binding_levels; + old_binding_levels = res->prev; + } + + /* Init. */ + res->first_decl = NULL_TREE; + res->last_decl = NULL_TREE; + + res->first_block = NULL_TREE; + res->last_block = NULL_TREE; + + res->bind = make_node (BIND_EXPR); + res->block = make_node (BLOCK); + BIND_EXPR_BLOCK (res->bind) = res->block; + TREE_SIDE_EFFECTS (res->bind) = 1; + TREE_TYPE (res->bind) = void_type_node; + TREE_USED (res->block) = 1; + + if (cur_binding_level != NULL) + { + /* Append the block created. */ + if (cur_binding_level->first_block == NULL) + cur_binding_level->first_block = res->block; + else + TREE_CHAIN (cur_binding_level->last_block) = res->block; + cur_binding_level->last_block = res->block; + + BLOCK_SUPERCONTEXT (res->block) = cur_binding_level->block; + } + + res->prev = cur_binding_level; + cur_binding_level = res; +} + +static void +push_decl (tree decl) +{ + DECL_CONTEXT (decl) = current_function_decl; + + if (cur_binding_level->first_decl == NULL) + cur_binding_level->first_decl = decl; + else + TREE_CHAIN (cur_binding_level->last_decl) = decl; + cur_binding_level->last_decl = decl; +} + +static tree +pop_binding (void) +{ + tree res; + struct binding_level *cur; + + cur = cur_binding_level; + res = cur->bind; + + if (cur->save_stack) + { + tree tmp_var; + tree save; + tree save_call; + tree restore; + tree t; + + /* Create an artificial var to save the stack pointer. */ + tmp_var = build_decl (VAR_DECL, NULL, ptr_type_node); + DECL_ARTIFICIAL (tmp_var) = 1; + DECL_IGNORED_P (tmp_var) = 1; + TREE_USED (tmp_var) = 1; + push_decl (tmp_var); + + /* Create the save stmt. */ + save_call = build_function_call_expr + (implicit_built_in_decls[BUILT_IN_STACK_SAVE], NULL_TREE); + save = build (MODIFY_EXPR, ptr_type_node, tmp_var, save_call); + + /* Create the restore stmt. */ + restore = build_function_call_expr + (implicit_built_in_decls[BUILT_IN_STACK_RESTORE], + tree_cons (NULL_TREE, tmp_var, NULL_TREE)); + + /* Build a try-finally block. + The statement list is the block of current statements. */ + t = build (TRY_FINALLY_EXPR, void_type_node, cur_stmts, NULL_TREE); + TREE_SIDE_EFFECTS (t) = 1; + + /* The finally block is the restore stmt. */ + append_to_statement_list (restore, &TREE_OPERAND (t, 1)); + + /* The body of the BIND_BLOCK is the save stmt, followed by the + try block. */ + BIND_EXPR_BODY (res) = NULL_TREE; + append_to_statement_list (save, &BIND_EXPR_BODY (res)); + append_to_statement_list (t, &BIND_EXPR_BODY (res)); + } + else + { + /* The body of the BIND_BLOCK is the statement block. */ + BIND_EXPR_BODY (res) = cur_stmts; + } + BIND_EXPR_VARS (res) = cur->first_decl; + + BLOCK_SUBBLOCKS (cur->block) = cur->first_block; + BLOCK_VARS (cur->block) = cur->first_decl; + + cur_binding_level = cur->prev; + cur->prev = old_binding_levels; + old_binding_levels = cur; + + return res; +} + +static void +append_stmt (tree stmt) +{ + if (!EXPR_HAS_LOCATION (stmt)) + SET_EXPR_LOCATION (stmt, input_location); + TREE_SIDE_EFFECTS (stmt) = 1; + append_to_statement_list (stmt, &cur_stmts); +} + +static void +push_stmts (tree stmts) +{ + TREE_CHAIN (stmts) = cur_stmts; + cur_stmts = stmts; +} + +static void +pop_stmts (void) +{ + tree prev; + + prev = cur_stmts; + cur_stmts = TREE_CHAIN (prev); + TREE_CHAIN (prev) = NULL_TREE; +} + +static GTY(()) tree top; + +static GTY(()) tree stack_alloc_function_ptr; +extern void ortho_fe_init (void); + +static int +global_bindings_p (void) +{ + return cur_binding_level->prev == NULL; +} + +static void +insert_block (tree b) +{ + abort (); +} + +static tree +pushdecl (tree t) +{ + abort (); +} + +static tree +builtin_function (const char *name, + tree type, + int function_code, + enum built_in_class class, + const char *library_name, + tree attrs ATTRIBUTE_UNUSED); + +REAL_VALUE_TYPE fp_const_p5; /* 0.5 */ +REAL_VALUE_TYPE fp_const_m_p5; /* -0.5 */ +REAL_VALUE_TYPE fp_const_zero; /* 0.0 */ + +static bool +ortho_init (void) +{ + tree n; + + input_location.line = 0; + + /* Create a global binding. */ + push_binding (); + + build_common_tree_nodes (0, 0); + n = build_decl (TYPE_DECL, get_identifier ("int"), integer_type_node); + push_decl (n); + n = build_decl (TYPE_DECL, get_identifier ("char"), char_type_node); + push_decl (n); + size_type_node = unsigned_type_node; + set_sizetype (unsigned_type_node); + build_common_tree_nodes_2 (0); + + /* Create alloca builtin. */ + { + tree args_type = tree_cons (NULL_TREE, size_type_node, void_list_node); + tree func_type = build_function_type (ptr_type_node, args_type); + + implicit_built_in_decls[BUILT_IN_ALLOCA] = builtin_function + ("__builtin_alloca", func_type, + BUILT_IN_ALLOCA, BUILT_IN_NORMAL, NULL, NULL_TREE); + + stack_alloc_function_ptr = build1 + (ADDR_EXPR, + build_pointer_type (func_type), + implicit_built_in_decls[BUILT_IN_ALLOCA]); + } + + { + tree ptr_ftype = build_function_type (ptr_type_node, NULL_TREE); + + implicit_built_in_decls[BUILT_IN_STACK_SAVE] = builtin_function + ("__builtin_stack_save", ptr_ftype, + BUILT_IN_STACK_SAVE, BUILT_IN_NORMAL, NULL, NULL_TREE); + } + + { + tree ftype_ptr; + + ftype_ptr = build_function_type + (void_type_node, + tree_cons (NULL_TREE, ptr_type_node, NULL_TREE)); + + implicit_built_in_decls[BUILT_IN_STACK_RESTORE] = builtin_function + ("__builtin_stack_restore", ftype_ptr, + BUILT_IN_STACK_RESTORE, BUILT_IN_NORMAL, NULL, NULL_TREE); + } + + { + REAL_VALUE_TYPE v; + + REAL_VALUE_FROM_INT (v, 1, 0, DFmode); + real_ldexp (&fp_const_p5, &v, -1); + + REAL_VALUE_FROM_INT (v, -1, -1, DFmode); + real_ldexp (&fp_const_m_p5, &v, -1); + + REAL_VALUE_FROM_INT (fp_const_zero, 0, 0, DFmode); + } + + ortho_fe_init (); + + return true; +} + +static void +ortho_finish (void) +{ +} + +static unsigned int +ortho_init_options (unsigned int argc, const char **argv) +{ + return CL_vhdl; +} + +static bool +ortho_post_options (const char **pfilename) +{ + if (*pfilename == NULL || strcmp (*pfilename, "-") == 0) + *pfilename = "*stdin*"; + + /* Run the back-end. */ + return false; +} + +extern int lang_handle_option (const char *opt, const char *arg); + +static int +ortho_handle_option (size_t code, const char *arg, int value) +{ + const char *opt; + + opt = cl_options[code].opt_text; + + switch (code) + { + case OPT__elab: + case OPT_l: + case OPT_c: + case OPT__anaelab: + /* Only a few options have a real arguments. */ + return lang_handle_option (opt, arg); + default: + /* The other options must have a joint argument. */ + if (arg != NULL) + { + size_t len1; + size_t len2; + char *nopt; + + len1 = strlen (opt); + len2 = strlen (arg); + nopt = alloca (len1 + len2 + 1); + memcpy (nopt, opt, len1); + memcpy (nopt + len1, arg, len2); + nopt[len1 + len2] = 0; + opt = nopt; + } + return lang_handle_option (opt, NULL); + } +} + +#if 0 +void +linemap_init (void *s) +{ +} +#endif + +extern int lang_parse_file (const char *filename); + +static void +ortho_parse_file (int debug) +{ + const char *filename; + + if (num_in_fnames == 0) + filename = NULL; + else + filename = in_fnames[0]; + + if (!lang_parse_file (filename)) + errorcount++; + else + { + cgraph_finalize_compilation_unit (); + cgraph_optimize (); + } +} + +static void +ortho_expand_function (tree fndecl) +{ + if (DECL_CONTEXT (fndecl) != NULL_TREE) + { + push_function_context (); + tree_rest_of_compilation (fndecl); + pop_function_context (); + } + else + tree_rest_of_compilation (fndecl); +} + +/* Called by the back-end or by the front-end when the address of EXP + must be taken. + This function should found the base object (if any), and mark it as + addressable (via TREE_ADDRESSABLE). It may emit a warning if this + object cannot be addressable (front-end restriction). + Returns TRUE in case of success, FALSE in case of failure. + Note that the status is never checked by the back-end. */ +static bool +ortho_mark_addressable (tree exp) +{ + tree n; + + n = exp; + + while (1) + switch (TREE_CODE (n)) + { + case VAR_DECL: + case CONST_DECL: + case PARM_DECL: + case RESULT_DECL: + TREE_ADDRESSABLE (n) = 1; + return true; + + case COMPONENT_REF: + case ARRAY_REF: + n = TREE_OPERAND (n, 0); + break; + + case FUNCTION_DECL: + case CONSTRUCTOR: + TREE_ADDRESSABLE (n) = 1; + return true; + + case INDIRECT_REF: + return true; + + default: + abort (); + } +} + +static tree +ortho_truthvalue_conversion (tree expr) +{ + tree expr_type; + tree t; + tree f; + + expr_type = TREE_TYPE (expr); + if (TREE_CODE (expr_type) != BOOLEAN_TYPE) + { + t = integer_one_node; + f = integer_zero_node; + } + else + { + f = TYPE_MIN_VALUE (expr_type); + t = TYPE_MAX_VALUE (expr_type); + } + + + switch (TREE_CODE (expr)) + { + case EQ_EXPR: + case NE_EXPR: + case LE_EXPR: + case GE_EXPR: + case LT_EXPR: + case GT_EXPR: + case TRUTH_ANDIF_EXPR: + case TRUTH_ORIF_EXPR: + case TRUTH_AND_EXPR: + case TRUTH_OR_EXPR: + case ERROR_MARK: + return expr; + + case INTEGER_CST: + /* Not 0 is true. */ + return integer_zerop (expr) ? f : t; + + case REAL_CST: + return real_zerop (expr) ? f : t; + + default: + abort (); + } +} + +/* Return a definition for a builtin function named NAME and whose data type + is TYPE. TYPE should be a function type with argument types. + FUNCTION_CODE tells later passes how to compile calls to this function. + See tree.h for its possible values. + + If LIBRARY_NAME is nonzero, use that for DECL_ASSEMBLER_NAME, + the name to be called if we can't opencode the function. If + ATTRS is nonzero, use that for the function's attribute list. */ +static tree +builtin_function (const char *name, + tree type, + int function_code, + enum built_in_class class, + const char *library_name, + tree attrs ATTRIBUTE_UNUSED) +{ + tree decl = build_decl (FUNCTION_DECL, get_identifier (name), type); + DECL_EXTERNAL (decl) = 1; + TREE_PUBLIC (decl) = 1; + if (library_name) + SET_DECL_ASSEMBLER_NAME (decl, get_identifier (library_name)); + make_decl_rtl (decl); + DECL_BUILT_IN_CLASS (decl) = class; + DECL_FUNCTION_CODE (decl) = function_code; + return decl; +} + +/* This variable keeps a table for types for each precision so that we only + allocate each of them once. Signed and unsigned types are kept separate. + */ +static GTY(()) tree signed_and_unsigned_types[MAX_BITS_PER_WORD + 1][2]; + +/* Return an integer type with the number of bits of precision given by + PRECISION. UNSIGNEDP is nonzero if the type is unsigned; otherwise + it is a signed type. */ +static tree +type_for_size (unsigned int precision, int unsignedp) +{ + tree t; + + if (precision <= MAX_BITS_PER_WORD + && signed_and_unsigned_types[precision][unsignedp] != NULL_TREE) + return signed_and_unsigned_types[precision][unsignedp]; + + if (unsignedp) + t = make_unsigned_type (precision); + else + t = make_signed_type (precision); + + if (precision <= MAX_BITS_PER_WORD) + signed_and_unsigned_types[precision][unsignedp] = t; + + return t; +} + +/* Return a data type that has machine mode MODE. UNSIGNEDP selects + an unsigned type; otherwise a signed type is returned. */ +static tree +type_for_mode (enum machine_mode mode, int unsignedp) +{ + return type_for_size (GET_MODE_BITSIZE (mode), unsignedp); +} + +/* Return the unsigned version of a TYPE_NODE, a scalar type. */ +static tree +unsigned_type (tree type) +{ + return type_for_size (TYPE_PRECISION (type), 1); +} + +/* Return the signed version of a TYPE_NODE, a scalar type. */ +static tree +signed_type (tree type) +{ + return type_for_size (TYPE_PRECISION (type), 0); +} + +/* Return a type the same as TYPE except unsigned or signed according to + UNSIGNEDP. */ +static tree +signed_or_unsigned_type (int unsignedp, tree type) +{ + if (!INTEGRAL_TYPE_P (type) + || TYPE_UNSIGNED (type) == unsignedp) + return type; + else + return type_for_size (TYPE_PRECISION (type), unsignedp); +} + +#undef LANG_HOOKS_NAME +#define LANG_HOOKS_NAME "vhdl" +#undef LANG_HOOKS_IDENTIFIER_SIZE +#define LANG_HOOKS_IDENTIFIER_SIZE sizeof (struct tree_identifier) +#undef LANG_HOOKS_INIT +#define LANG_HOOKS_INIT ortho_init +#undef LANG_HOOKS_FINISH +#define LANG_HOOKS_FINISH ortho_finish +#undef LANG_HOOKS_INIT_OPTIONS +#define LANG_HOOKS_INIT_OPTIONS ortho_init_options +#undef LANG_HOOKS_HANDLE_OPTION +#define LANG_HOOKS_HANDLE_OPTION ortho_handle_option +#undef LANG_HOOKS_POST_OPTIONS +#define LANG_HOOKS_POST_OPTIONS ortho_post_options +#undef LANG_HOOKS_HONOR_READONLY +#define LANG_HOOKS_HONOR_READONLY true +#undef LANG_HOOKS_TRUTHVALUE_CONVERSION +#define LANG_HOOKS_TRUTHVALUE_CONVERSION ortho_truthvalue_conversion +#undef LANG_HOOKS_MARK_ADDRESSABLE +#define LANG_HOOKS_MARK_ADDRESSABLE ortho_mark_addressable +#undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION +#define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION ortho_expand_function + +#undef LANG_HOOKS_TYPE_FOR_MODE +#define LANG_HOOKS_TYPE_FOR_MODE type_for_mode +#undef LANG_HOOKS_TYPE_FOR_SIZE +#define LANG_HOOKS_TYPE_FOR_SIZE type_for_size +#undef LANG_HOOKS_SIGNED_TYPE +#define LANG_HOOKS_SIGNED_TYPE signed_type +#undef LANG_HOOKS_UNSIGNED_TYPE +#define LANG_HOOKS_UNSIGNED_TYPE unsigned_type +#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE +#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE signed_or_unsigned_type +#undef LANG_HOOKS_PARSE_FILE +#define LANG_HOOKS_PARSE_FILE ortho_parse_file + +#define pushlevel lhd_do_nothing_i +#define poplevel lhd_do_nothing_iii_return_null_tree +#define set_block lhd_do_nothing_t +#undef LANG_HOOKS_GETDECLS +#define LANG_HOOKS_GETDECLS lhd_return_null_tree_v + +const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER; + +/* Tree code classes. */ + +#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE, + +const enum tree_code_class tree_code_type[] = { +#include "tree.def" + 'x' +}; +#undef DEFTREECODE + +/* Table indexed by tree code giving number of expression + operands beyond the fixed part of the node structure. + Not used for types or decls. */ + +#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH, + +const unsigned char tree_code_length[] = { +#include "tree.def" + 0 +}; +#undef DEFTREECODE + +#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) NAME, +const char * const tree_code_name[] = { +#include "tree.def" + "@@dummy" +}; +#undef DEFTREECODE + +union lang_tree_node + GTY((desc ("0"), + chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)"))) +{ + union tree_node GTY ((tag ("0"), + desc ("tree_node_structure (&%h)"))) + generic; +}; + +struct lang_decl GTY(()) +{ +}; + +struct lang_type GTY (()) +{ +}; + +struct language_function GTY (()) +{ +}; + +struct chain_constr_type +{ + tree first; + tree last; +}; + +static void +chain_init (struct chain_constr_type *constr) +{ + constr->first = NULL_TREE; + constr->last = NULL_TREE; +} + +static void +chain_append (struct chain_constr_type *constr, tree el) +{ + if (constr->first == NULL_TREE) + { + if (constr->last != NULL_TREE) + abort (); + constr->first = el; + } + else + TREE_CHAIN (constr->last) = el; + constr->last = el; +} + +struct list_constr_type +{ + tree first; + tree last; +}; + +static void +list_init (struct list_constr_type *constr) +{ + constr->first = NULL_TREE; + constr->last = NULL_TREE; +} + +static void +ortho_list_append (struct list_constr_type *constr, tree el) +{ + tree res; + + res = tree_cons (NULL_TREE, el, NULL_TREE); + if (constr->first == NULL_TREE) + constr->first = res; + else + TREE_CHAIN (constr->last) = res; + constr->last = res; +} + +enum ON_op_kind { + /* Not an operation; invalid. */ + ON_Nil, + + /* Dyadic operations. */ + ON_Add_Ov, + ON_Sub_Ov, + ON_Mul_Ov, + ON_Div_Ov, + ON_Rem_Ov, + ON_Mod_Ov, + + /* Binary operations. */ + ON_And, + ON_Or, + ON_Xor, + ON_And_Then, + ON_Or_Else, + + /* Monadic operations. */ + ON_Not, + ON_Neg_Ov, + ON_Abs_Ov, + + /* Comparaisons */ + ON_Eq, + ON_Neq, + ON_Le, + ON_Lt, + ON_Ge, + ON_Gt, + + ON_LAST +}; + + +static enum tree_code ON_op_to_TREE_CODE[ON_LAST] = { + ERROR_MARK, + + PLUS_EXPR, + MINUS_EXPR, + MULT_EXPR, + ERROR_MARK, + TRUNC_MOD_EXPR, + FLOOR_MOD_EXPR, + + TRUTH_AND_EXPR, + TRUTH_OR_EXPR, + TRUTH_XOR_EXPR, + TRUTH_ANDIF_EXPR, + TRUTH_ORIF_EXPR, + + TRUTH_NOT_EXPR, + NEGATE_EXPR, + ABS_EXPR, + + EQ_EXPR, + NE_EXPR, + LE_EXPR, + LT_EXPR, + GE_EXPR, + GT_EXPR, +}; + +tree +new_dyadic_op (enum ON_op_kind kind, tree left, tree right) +{ + tree left_type; + enum tree_code code; + + left_type = TREE_TYPE (left); + if (left_type != TREE_TYPE (right)) + abort (); + + switch (kind) + { + case ON_Div_Ov: + if (TREE_CODE (left_type) == REAL_TYPE) + code = RDIV_EXPR; + else + code = TRUNC_DIV_EXPR; + break; + default: + code = ON_op_to_TREE_CODE[kind]; + break; + } + return build2 (code, left_type, left, right); +} + +tree +new_monadic_op (enum ON_op_kind kind, tree operand) +{ + return build1 (ON_op_to_TREE_CODE[kind], TREE_TYPE (operand), operand); +} + +tree +new_compare_op (enum ON_op_kind kind, tree left, tree right, tree ntype) +{ + if (TREE_CODE (ntype) != BOOLEAN_TYPE) + abort (); + if (TREE_TYPE (left) != TREE_TYPE (right)) + abort (); + return build2 (ON_op_to_TREE_CODE[kind], ntype, left, right); +} + +tree +new_convert_ov (tree val, tree rtype) +{ + tree val_type; + enum tree_code val_code; + enum tree_code rtype_code; + enum tree_code code; + + val_type = TREE_TYPE (val); + if (val_type == rtype) + return val; + + /* FIXME: check conversions. */ + val_code = TREE_CODE (val_type); + rtype_code = TREE_CODE (rtype); + if (val_code == POINTER_TYPE && rtype_code == POINTER_TYPE) + code = NOP_EXPR; + else if (val_code == INTEGER_TYPE && rtype_code == INTEGER_TYPE) + code = CONVERT_EXPR; + else if (val_code == REAL_TYPE && rtype_code == INTEGER_TYPE) + { + /* REAL to INTEGER + Gcc only handles FIX_TRUNC_EXPR, but we need rounding. */ + tree m_p5; + tree p5; + tree zero; + tree saved; + tree comp; + tree adj; + tree res; + + m_p5 = build_real (val_type, fp_const_m_p5); + p5 = build_real (val_type, fp_const_p5); + zero = build_real (val_type, fp_const_zero); + saved = save_expr (val); + comp = build2 (GE_EXPR, integer_type_node, saved, zero); + /* FIXME: instead of res = res + (comp ? .5 : -.5) + do: res = res (comp ? + : -) .5 */ + adj = build3 (COND_EXPR, val_type, comp, p5, m_p5); + res = build2 (PLUS_EXPR, val_type, saved, adj); + res = build1 (FIX_TRUNC_EXPR, rtype, res); + return res; + } + else if (val_code == INTEGER_TYPE && rtype_code == ENUMERAL_TYPE) + code = CONVERT_EXPR; + else if (val_code == ENUMERAL_TYPE && rtype_code == INTEGER_TYPE) + code = CONVERT_EXPR; + else if (val_code == INTEGER_TYPE && rtype_code == REAL_TYPE) + code = FLOAT_EXPR; + else if (val_code == BOOLEAN_TYPE && rtype_code == BOOLEAN_TYPE) + code = NOP_EXPR; + else if (val_code == BOOLEAN_TYPE && rtype_code == INTEGER_TYPE) + code = CONVERT_EXPR; + else if (val_code == INTEGER_TYPE && rtype_code == BOOLEAN_TYPE) + code = NOP_EXPR; + else if (val_code == REAL_TYPE && rtype_code == REAL_TYPE) + code = NOP_EXPR; + else + abort (); + + return build1 (code, rtype, val); +} + +tree +new_alloca (tree rtype, tree size) +{ + tree res; + tree args; + + /* Must save stack. */ + cur_binding_level->save_stack = 1; + + args = tree_cons (NULL_TREE, fold_convert (size_type_node, size), NULL_TREE); + res = build3 (CALL_EXPR, ptr_type_node, stack_alloc_function_ptr, + args, NULL_TREE); + return fold_convert (rtype, res); +} + +tree +new_signed_literal (tree ltype, long long value) +{ + tree res; + + res = build_int_cst_wide (ltype, + value, value >> (8 * sizeof (HOST_WIDE_INT))); + return res; +} + +tree +new_unsigned_literal (tree ltype, unsigned long long value) +{ + tree res; + + res = build_int_cst_wide (ltype, + value, value >> (8 * sizeof (HOST_WIDE_INT))); + return res; +} + +tree +new_null_access (tree ltype) +{ + tree res; + + res = build_int_cst_wide (ltype, 0, 0); + return res; +} + +tree +new_float_literal (tree ltype, double value) +{ + signed long long s; + double frac; + int ex; + REAL_VALUE_TYPE r_sign; + REAL_VALUE_TYPE r_exp; + REAL_VALUE_TYPE r; + tree res; + + frac = frexp (value, &ex); + + s = ldexp (frac, 60); + REAL_VALUE_FROM_INT (r_sign, + (HOST_WIDE_INT) s, + (HOST_WIDE_INT) (s >> (8 * sizeof (HOST_WIDE_INT))), + DFmode); + real_2expN (&r_exp, ex - 60); + real_arithmetic (&r, MULT_EXPR, &r_sign, &r_exp); + res = build_real (ltype, r); + return res; +} + +struct o_element_list +{ + tree res; + struct chain_constr_type chain; +}; + +void +new_uncomplete_record_type (tree *res) +{ + *res = make_node (RECORD_TYPE); +} + +void +start_record_type (struct o_element_list *elements) +{ + elements->res = make_node (RECORD_TYPE); + chain_init (&elements->chain); +} + +void +start_uncomplete_record_type (tree res, struct o_element_list *elements) +{ + elements->res = res; + chain_init (&elements->chain); +} + +static void +new_record_union_field (struct o_element_list *list, + tree *el, + tree ident, + tree etype) +{ + tree res; + + res = build_decl (FIELD_DECL, ident, etype); + DECL_CONTEXT (res) = list->res; + chain_append (&list->chain, res); + *el = res; +} + +void +new_record_field (struct o_element_list *list, + tree *el, + tree ident, + tree etype) +{ + return new_record_union_field (list, el, ident, etype); +} + +void +finish_record_type (struct o_element_list *elements, tree *res) +{ + TYPE_FIELDS (elements->res) = elements->chain.first; + layout_type (elements->res); + *res = elements->res; + + if (TYPE_NAME (elements->res) != NULL_TREE) + { + /* The type was completed. */ + rest_of_type_compilation (elements->res, 1); + } +} + + +void +start_union_type (struct o_element_list *elements) +{ + elements->res = make_node (UNION_TYPE); + chain_init (&elements->chain); +} + +void +new_union_field (struct o_element_list *elements, + tree *el, + tree ident, + tree etype) +{ + return new_record_union_field (elements, el, ident, etype); +} + +void +finish_union_type (struct o_element_list *elements, tree *res) +{ + TYPE_FIELDS (elements->res) = elements->chain.first; + layout_type (elements->res); + *res = elements->res; +} + +tree +new_unsigned_type (int size) +{ + return make_unsigned_type (size); +} + +tree +new_signed_type (int size) +{ + return make_signed_type (size); +} + +tree +new_float_type (void) +{ + tree res; + + res = make_node (REAL_TYPE); + TYPE_PRECISION (res) = DOUBLE_TYPE_SIZE; + layout_type (res); + return res; +} + +tree +new_access_type (tree dtype) +{ + tree res; + + if (dtype == NULL_TREE) + { + res = make_node (POINTER_TYPE); + TREE_TYPE (res) = NULL_TREE; + /* Seems necessary. */ + TYPE_MODE (res) = Pmode; + layout_type (res); + return res; + } + else + return build_pointer_type (dtype); +} + +void +finish_access_type (tree atype, tree dtype) +{ + if (TREE_CODE (atype) != POINTER_TYPE + || TREE_TYPE (atype) != NULL_TREE) + abort (); + + TREE_TYPE (atype) = dtype; +} + +tree +new_array_type (tree el_type, tree index_type) +{ + return build_array_type (el_type, index_type); +} + + +tree +new_constrained_array_type (tree atype, tree length) +{ + tree range_type; + tree index_type; + tree len; + tree one; + + index_type = TYPE_DOMAIN (atype); + if (integer_zerop (length)) + { + /* Handle null array, by creating a one-length array... */ + len = size_zero_node; + } + else + { + one = build_int_cstu (index_type, 1); + len = build2 (MINUS_EXPR, index_type, length, one); + len = fold (len); + } + + range_type = build_range_type (index_type, size_zero_node, len); + return build_array_type (TREE_TYPE (atype), range_type); +} + +void +new_boolean_type (tree *res, + tree false_id, tree *false_e, + tree true_id, tree *true_e) +{ + *res = make_node (BOOLEAN_TYPE); + TYPE_PRECISION (*res) = 1; + fixup_unsigned_type (*res); + *false_e = TYPE_MIN_VALUE (*res); + *true_e = TYPE_MAX_VALUE (*res); +} + +struct o_enum_list +{ + tree res; + struct chain_constr_type chain; + int num; + int size; +}; + +void +start_enum_type (struct o_enum_list *list, int size) +{ + list->res = make_node (ENUMERAL_TYPE); + chain_init (&list->chain); + list->num = 0; + list->size = size; +} + +void +new_enum_literal (struct o_enum_list *list, tree ident, tree *res) +{ + *res = build_int_cstu (list->res, list->num); + chain_append (&list->chain, tree_cons (ident, *res, NULL_TREE)); + list->num++; +} + +void +finish_enum_type (struct o_enum_list *list, tree *res) +{ + *res = list->res; + TYPE_VALUES (*res) = list->chain.first; + TYPE_MIN_VALUE (*res) = TREE_VALUE (list->chain.first); + TYPE_MAX_VALUE (*res) = TREE_VALUE (list->chain.last); + TYPE_UNSIGNED (*res) = 1; + TYPE_PRECISION (*res) = list->size; + layout_type (*res); +} + +struct o_record_aggr_list +{ + tree atype; + struct chain_constr_type chain; +}; + +void +start_record_aggr (struct o_record_aggr_list *list, tree atype) +{ + list->atype = atype; + chain_init (&list->chain); +} + +void +new_record_aggr_el (struct o_record_aggr_list *list, tree value) +{ + chain_append (&list->chain, build_tree_list (NULL_TREE, value)); +} + +void +finish_record_aggr (struct o_record_aggr_list *list, tree *res) +{ + *res = build_constructor (list->atype, list->chain.first); +} + + +struct o_array_aggr_list +{ + tree atype; + struct chain_constr_type chain; +}; + +void +start_array_aggr (struct o_array_aggr_list *list, tree atype) +{ + list->atype = atype; + chain_init (&list->chain); +} + +void +new_array_aggr_el (struct o_array_aggr_list *list, tree value) +{ + chain_append (&list->chain, build_tree_list (NULL_TREE, value)); +} + +void +finish_array_aggr (struct o_array_aggr_list *list, tree *res) +{ + *res = build_constructor (list->atype, list->chain.first); +} + + +tree +new_union_aggr (tree atype, tree field, tree value) +{ + tree el; + tree res; + + el = build_tree_list (field, value); + res = build_constructor (atype, el); + TREE_CONSTANT (res) = 1; + return res; +} + +tree +new_indexed_element (tree arr, tree index) +{ + ortho_mark_addressable (arr); + return build4 (ARRAY_REF, TREE_TYPE (TREE_TYPE (arr)), + arr, index, NULL_TREE, NULL_TREE); +} + +tree +new_slice (tree arr, tree res_type, tree index) +{ + tree res; + tree el_ptr_type; + tree el_type; + tree res_ptr_type; + + /* *((RES_TYPE *)(&ARR[INDEX])) + convert ARR to a pointer, add index, and reconvert to array ? */ + if (TREE_CODE (res_type) != ARRAY_TYPE) + abort (); + + ortho_mark_addressable (arr); + el_type = TREE_TYPE (TREE_TYPE (arr)); + el_ptr_type = build_pointer_type (el_type); + + res = build4 (ARRAY_REF, el_type, arr, index, NULL_TREE, NULL_TREE); + res = build1 (ADDR_EXPR, el_ptr_type, res); + res_ptr_type = build_pointer_type (res_type); + res = build1 (NOP_EXPR, res_ptr_type, res); + res = build1 (INDIRECT_REF, res_type, res); + return res; +} + +tree +new_selected_element (tree rec, tree el) +{ + tree res; + + if (TREE_CODE (TREE_TYPE (rec)) != RECORD_TYPE) + abort (); + + res = build3 (COMPONENT_REF, TREE_TYPE (el), rec, el, NULL_TREE); + return res; +} + +tree +new_access_element (tree acc) +{ + tree acc_type; + + acc_type = TREE_TYPE (acc); + if (TREE_CODE (acc_type) != POINTER_TYPE) + abort (); + + return build1 (INDIRECT_REF, TREE_TYPE (acc_type), acc); +} + +tree +new_offsetof (tree field, tree rtype) +{ + tree off; + tree bit_off; + HOST_WIDE_INT pos; + tree res; + + off = DECL_FIELD_OFFSET (field); + if (!host_integerp (off, 1)) + { + /* The offset must be a constant. */ + abort (); + } + + bit_off = DECL_FIELD_BIT_OFFSET (field); + if (!host_integerp (bit_off, 1)) + { + /* The offset must be a constant. */ + abort (); + } + + pos = TREE_INT_CST_LOW (off) + + (TREE_INT_CST_LOW (bit_off) / BITS_PER_UNIT); + res = build_int_cstu (rtype, pos); + return res; +} + +tree +new_sizeof (tree atype, tree rtype) +{ + tree size; + + size = TYPE_SIZE_UNIT (atype); + + return fold (build1 (NOP_EXPR, rtype, size)); +} + +#if 0 +static tree +ortho_build_addr (tree operand, tree atype) +{ + tree base = exp; + + while (handled_component_p (base)) + base = TREE_OPERAND (base, 0); + + if (DECL_P (base)) + TREE_ADDRESSABLE (base) = 1; + + return build1 (ADDR_EXPR, atype, exp); +} +#endif + +tree +new_unchecked_address (tree lvalue, tree atype) +{ + tree res; + + if (TREE_CODE (lvalue) == INDIRECT_REF) + { + res = TREE_OPERAND (lvalue, 0); + } + else + { + ortho_mark_addressable (lvalue); + + if (TREE_TYPE (lvalue) != TREE_TYPE (atype)) + { + tree ptr; + ptr = build_pointer_type (TREE_TYPE (lvalue)); + res = build1 (ADDR_EXPR, ptr, lvalue); + } + else + res = build1 (ADDR_EXPR, atype, lvalue); + } + + if (TREE_TYPE (res) != atype) + res = fold (build1 (NOP_EXPR, atype, res)); + + return res; + +#if 0 + /* res = build_addr (lvalue, atype); */ + if (TREE_TYPE (res) != atype) + { + if (TREE_CODE (TREE_TYPE (res)) != POINTER_TYPE) + abort (); + res = build1 (NOP_EXPR, atype, res); + } + return res; +#endif +} + +tree +new_address (tree lvalue, tree atype) +{ + return new_unchecked_address (lvalue, atype); +} + +tree +new_global_address (tree lvalue, tree atype) +{ + return new_unchecked_address (lvalue, atype); +} + +tree +new_global_unchecked_address (tree lvalue, tree atype) +{ + return new_unchecked_address (lvalue, atype); +} + +/* Return a pointer to function FUNC. */ +static tree +build_function_ptr (tree func) +{ + return build1 (ADDR_EXPR, + build_pointer_type (TREE_TYPE (func)), func); +} + +tree +new_subprogram_address (tree subprg, tree atype) +{ + return fold (build1 (NOP_EXPR, atype, build_function_ptr (subprg))); +} + +tree +new_value (tree lvalue) +{ + return lvalue; +} + +void +new_debug_line_decl (int line) +{ + input_location.line = line; +} + +void +new_type_decl (tree ident, tree atype) +{ + tree decl; + + TYPE_NAME (atype) = ident; + decl = build_decl (TYPE_DECL, ident, atype); + TYPE_STUB_DECL (atype) = decl; + push_decl (decl); + /* + if Get_TYPE_SIZE (Ttype) /= NULL_TREE then + -- Do not generate debug info for uncompleted types. + Rest_Of_Type_Compilation (Ttype, C_True); + end if; + */ +} + +enum o_storage { o_storage_external, + o_storage_public, + o_storage_private, + o_storage_local }; + +static void +set_storage (tree Node, enum o_storage storage) +{ + switch (storage) + { + case o_storage_external: + DECL_EXTERNAL (Node) = 1; + TREE_PUBLIC (Node) = 1; + TREE_STATIC (Node) = 0; + break; + case o_storage_public: + DECL_EXTERNAL (Node) = 0; + TREE_PUBLIC (Node) = 1; + TREE_STATIC (Node) = 1; + break; + case o_storage_private: + DECL_EXTERNAL (Node) = 0; + TREE_PUBLIC (Node) = 0; + TREE_STATIC (Node) = 1; + break; + case o_storage_local: + DECL_EXTERNAL (Node) = 0; + TREE_PUBLIC (Node) = 0; + TREE_STATIC (Node) = 0; + break; + } +} + +void +new_const_decl (tree *res, tree ident, enum o_storage storage, tree atype) +{ + tree cst; + + cst = build_decl (VAR_DECL, ident, atype); + set_storage (cst, storage); + TREE_READONLY (cst) = 1; + push_decl (cst); + switch (storage) + { + case o_storage_local: + abort (); + case o_storage_external: + /* We are at top level if Current_Function_Decl is null. */ + rest_of_decl_compilation + (cst, current_function_decl == NULL_TREE, 0); + break; + case o_storage_public: + case o_storage_private: + break; + } + *res = cst; +} + +void +start_const_value (tree *cst) +{ +} + +void +finish_const_value (tree *cst, tree val) +{ + DECL_INITIAL (*cst) = val; + TREE_CONSTANT (val) = 1; + rest_of_decl_compilation + (*cst, current_function_decl == NULL_TREE, 0); +} + +void +new_var_decl (tree *res, tree ident, enum o_storage storage, tree atype) +{ + tree var; + + var = build_decl (VAR_DECL, ident, atype); + if (current_function_decl != NULL_TREE) + { + /* Local variable. */ + TREE_STATIC (var) = 0; + DECL_EXTERNAL (var) = 0; + TREE_PUBLIC (var) = 0; + } + else + set_storage (var, storage); + + push_decl (var); + + if (current_function_decl == NULL_TREE) + rest_of_decl_compilation (var, 1, 0); + + *res = var; +} + +struct o_inter_list +{ + tree ident; + enum o_storage storage; + + /* Return type. */ + tree rtype; + + /* List of parameter types. */ + struct list_constr_type param_list; + + /* Chain of parameters declarations. */ + struct chain_constr_type param_chain; +}; + +void +start_function_decl (struct o_inter_list *interfaces, + tree ident, + enum o_storage storage, + tree rtype) +{ + interfaces->ident = ident; + interfaces->storage = storage; + interfaces->rtype = rtype; + chain_init (&interfaces->param_chain); + list_init (&interfaces->param_list); +} + +void +start_procedure_decl (struct o_inter_list *interfaces, + tree ident, + enum o_storage storage) +{ + start_function_decl (interfaces, ident, storage, void_type_node); +} + +void +new_interface_decl (struct o_inter_list *interfaces, + tree *res, + tree ident, + tree atype) +{ + tree r; + + r = build_decl (PARM_DECL, ident, atype); + /* DECL_CONTEXT (Res, Xxx); */ + + /* Do type conversion: convert boolean and enums to int */ + switch (TREE_CODE (atype)) + { + case ENUMERAL_TYPE: + case BOOLEAN_TYPE: + DECL_ARG_TYPE (r) = integer_type_node; + default: + DECL_ARG_TYPE (r) = atype; + } + + chain_append (&interfaces->param_chain, r); + ortho_list_append (&interfaces->param_list, atype); + *res = r; +} + +/* Current function nest level, or the number of parents. */ +/* static int function_nest_level; */ + + +void +finish_subprogram_decl (struct o_inter_list *interfaces, tree *res) +{ + tree decl; + tree result; + tree parm; + int is_global; + + decl = build_decl (FUNCTION_DECL, interfaces->ident, + build_function_type (interfaces->rtype, + interfaces->param_list.first)); + is_global = current_function_decl == NULL_TREE + || interfaces->storage == o_storage_external; + if (is_global) + set_storage (decl, interfaces->storage); + else + { + /* A nested subprogram. */ + DECL_EXTERNAL (decl) = 0; + TREE_PUBLIC (decl) = 0; + } + /* The function exist in static storage. */ + TREE_STATIC (decl) = 1; + DECL_INITIAL (decl) = error_mark_node; + TREE_ADDRESSABLE (decl) = 1; + + /* Declare the result. + FIXME: should be moved in start_function_body. */ + result = build_decl (RESULT_DECL, NULL_TREE, interfaces->rtype); + DECL_RESULT (decl) = result; + DECL_CONTEXT (result) = decl; + + DECL_ARGUMENTS (decl) = interfaces->param_chain.first; + /* Set DECL_CONTEXT of parameters. */ + for (parm = interfaces->param_chain.first; + parm != NULL_TREE; + parm = TREE_CHAIN (parm)) + DECL_CONTEXT (parm) = decl; + + push_decl (decl); + + /* External functions are never nested. + Remove their context, which is set by push_decl. */ + if (interfaces->storage == o_storage_external) + DECL_CONTEXT (decl) = NULL_TREE; + + if (is_global) + rest_of_decl_compilation (decl, 1, 0); + + *res = decl; +} + +void +start_subprogram_body (tree func) +{ + if (current_function_decl != DECL_CONTEXT (func)) + abort (); + current_function_decl = func; + + /* The function is not anymore external. */ + DECL_EXTERNAL (func) = 0; + + push_stmts (alloc_stmt_list ()); + push_binding (); +} + +void +finish_subprogram_body (void) +{ + tree bind; + tree func; + tree parent; + + bind = pop_binding (); + pop_stmts (); + + func = current_function_decl; + DECL_INITIAL (func) = BIND_EXPR_BLOCK (bind); + DECL_SAVED_TREE (func) = bind; + + /* Initialize the RTL code for the function. */ + allocate_struct_function (func); + + /* Store the end of the function. */ + cfun->function_end_locus = input_location; + + /* This function is being processed in whole-function mode. */ + /* cfun->x_whole_function_mode_p = 1; */ + + gimplify_function_tree (func); + + parent = DECL_CONTEXT (func); + + if (parent != NULL) + cgraph_node (func); + else + cgraph_finalize_function (func, false); + + current_function_decl = parent; + cfun = NULL; +} + + +void +new_debug_line_stmt (int line) +{ + input_location.line = line; +} + +void +start_declare_stmt (void) +{ + push_stmts (alloc_stmt_list ()); + push_binding (); +} + +void +finish_declare_stmt (void) +{ + tree bind; + + bind = pop_binding (); + pop_stmts (); + append_stmt (bind); +} + + +struct o_assoc_list +{ + tree subprg; + struct list_constr_type list; +}; + +void +start_association (struct o_assoc_list *assocs, tree subprg) +{ + assocs->subprg = subprg; + list_init (&assocs->list); +} + +void +new_association (struct o_assoc_list *assocs, tree val) +{ + ortho_list_append (&assocs->list, val); +} + +tree +new_function_call (struct o_assoc_list *assocs) +{ + return build3 (CALL_EXPR, + TREE_TYPE (TREE_TYPE (assocs->subprg)), + build_function_ptr (assocs->subprg), + assocs->list.first, NULL_TREE); +} + +void +new_procedure_call (struct o_assoc_list *assocs) +{ + tree res; + + res = build3 (CALL_EXPR, + TREE_TYPE (TREE_TYPE (assocs->subprg)), + build_function_ptr (assocs->subprg), + assocs->list.first, NULL_TREE); + TREE_SIDE_EFFECTS (res) = 1; + append_stmt (res); +} + +void +new_assign_stmt (tree target, tree value) +{ + tree n; + + n = build2 (MODIFY_EXPR, TREE_TYPE (target), target, value); + TREE_SIDE_EFFECTS (n) = 1; + append_stmt (n); +} + +void +new_func_return_stmt (tree value) +{ + tree assign; + tree stmt; + tree res; + + res = DECL_RESULT (current_function_decl); + assign = build2 (MODIFY_EXPR, TREE_TYPE (value), res, value); + TREE_SIDE_EFFECTS (assign) = 1; + stmt = build1 (RETURN_EXPR, TREE_TYPE (value), assign); + append_stmt (stmt); +} + +void +new_proc_return_stmt (void) +{ + tree stmt; + + stmt = build1 (RETURN_EXPR, void_type_node, NULL_TREE); + TREE_SIDE_EFFECTS (stmt) = 1; + append_stmt (stmt); +} + + +struct o_if_block +{ + tree stmt; +}; + +void +start_if_stmt (struct o_if_block *block, tree cond) +{ + tree stmt; + tree stmts; + + stmts = alloc_stmt_list (); + stmt = build3 (COND_EXPR, void_type_node, cond, stmts, NULL_TREE); + block->stmt = stmt; + append_stmt (stmt); + push_stmts (stmts); +} + +void +new_elsif_stmt (struct o_if_block *block, tree cond) +{ + tree stmts; + tree stmt; + + pop_stmts (); + stmts = alloc_stmt_list (); + stmt = build3 (COND_EXPR, void_type_node, cond, stmts, NULL_TREE); + COND_EXPR_ELSE (block->stmt) = stmt; + block->stmt = stmt; + push_stmts (stmts); +} + +void +new_else_stmt (struct o_if_block *block) +{ + tree stmts; + + pop_stmts (); + stmts = alloc_stmt_list (); + COND_EXPR_ELSE (block->stmt) = stmts; + push_stmts (stmts); +} + +void +finish_if_stmt (struct o_if_block *block) +{ + pop_stmts (); +} + + +struct o_loop_block +{ + tree beg_label; + tree end_label; +}; + +struct o_snode +{ + tree beg_label; + tree end_label; +}; + +/* Create an artificial label. */ +static tree +build_label (void) +{ + tree res; + + res = build_decl (LABEL_DECL, NULL_TREE, void_type_node); + DECL_CONTEXT (res) = current_function_decl; + DECL_ARTIFICIAL (res) = 1; + return res; +} + +void +start_loop_stmt (struct o_snode *label) +{ + tree stmt; + + label->beg_label = build_label (); + + stmt = build1 (LABEL_EXPR, void_type_node, label->beg_label); + append_stmt (stmt); + + label->end_label = build_label (); +} + +void +finish_loop_stmt (struct o_snode *label) +{ + tree stmt; + + stmt = build1 (GOTO_EXPR, void_type_node, label->beg_label); + TREE_USED (label->beg_label) = 1; + append_stmt (stmt); + /* Emit the end label only if there is a goto to it. + (Return may be used to exit from the loop). */ + if (TREE_USED (label->end_label)) + { + stmt = build1 (LABEL_EXPR, void_type_node, label->end_label); + append_stmt (stmt); + } +} + +void +new_exit_stmt (struct o_snode *l) +{ + tree stmt; + + stmt = build1 (GOTO_EXPR, void_type_node, l->end_label); + append_stmt (stmt); + TREE_USED (l->end_label) = 1; +} + +void +new_next_stmt (struct o_snode *l) +{ + tree stmt; + + stmt = build1 (GOTO_EXPR, void_type_node, l->beg_label); + TREE_USED (l->beg_label) = 1; + append_stmt (stmt); +} + +struct o_case_block +{ + tree end_label; + int add_break; +}; + +void +start_case_stmt (struct o_case_block *block, tree value) +{ + tree stmt; + tree stmts; + + block->end_label = build_label (); + block->add_break = 0; + stmts = alloc_stmt_list (); + stmt = build3 (SWITCH_EXPR, void_type_node, value, stmts, NULL_TREE); + append_stmt (stmt); + push_stmts (stmts); +} + +void +start_choice (struct o_case_block *block) +{ + tree stmt; + + if (block->add_break) + { + stmt = build1 (GOTO_EXPR, void_type_node, block->end_label); + append_stmt (stmt); + + block->add_break = 0; + } +} + +void +new_expr_choice (struct o_case_block *block, tree expr) +{ + tree stmt; + + stmt = build3 (CASE_LABEL_EXPR, void_type_node, + expr, NULL_TREE, create_artificial_label ()); + append_stmt (stmt); +} + +void +new_range_choice (struct o_case_block *block, tree low, tree high) +{ + tree stmt; + + stmt = build3 (CASE_LABEL_EXPR, void_type_node, + low, high, create_artificial_label ()); + append_stmt (stmt); +} + +void +new_default_choice (struct o_case_block *block) +{ + tree stmt; + + stmt = build3 (CASE_LABEL_EXPR, void_type_node, + NULL_TREE, NULL_TREE, create_artificial_label ()); + append_stmt (stmt); +} + +void +finish_choice (struct o_case_block *block) +{ + block->add_break = 1; +} + +void +finish_case_stmt (struct o_case_block *block) +{ + tree stmt; + + pop_stmts (); + stmt = build1 (LABEL_EXPR, void_type_node, block->end_label); + append_stmt (stmt); +} + +bool +compare_identifier_string (tree id, const char *str, size_t len) +{ + if (IDENTIFIER_LENGTH (id) != len) + return false; + if (!memcmp (IDENTIFIER_POINTER (id), str, len)) + return true; + else + return false; +} + +void +get_identifier_string (tree id, const char **str, int *len) +{ + *len = IDENTIFIER_LENGTH (id); + *str = IDENTIFIER_POINTER (id); +} + +#include "debug.h" +#include "gt-vhdl-ortho-lang.h" +#include "gtype-vhdl.h" |