DEADSOFTWARE

Добавлены встроенные процедуры
[dsw-obn.git] / generator.c
index 24529e0e26add6f595560626773029ce65f903e6..709e5a65cbfb513cd502e2bf7d70383b89468449 100644 (file)
@@ -8,8 +8,6 @@
 #include "oberon.h"
 #include "generator.h"
 
-#include <libgccjit.h>
-
 static void printcontext(oberon_context_t * ctx, char * s)
 {
 /*
@@ -29,6 +27,24 @@ static void printcontext(oberon_context_t * ctx, char * s)
 //   ALLOC
 // ======================================================================= 
 
+static void
+oberon_generator_open_block(gen_context_t * gen_context, gcc_jit_block * gcc_block)
+{
+       gen_block_t * block = malloc(sizeof *block);
+       memset(block, 0, sizeof *block);
+
+       block -> gcc_block = gcc_block;
+       block -> up = gen_context -> block;
+
+       gen_context -> block = block;
+}
+
+static void
+oberon_generator_close_block(gen_context_t * gen_context)
+{
+       gen_context -> block = gen_context -> block -> up;
+}
+
 void
 oberon_generator_init_context(oberon_context_t * ctx)
 {
@@ -87,7 +103,11 @@ oberon_generator_init_type(oberon_context_t * ctx, oberon_type_t * type)
        }
        else if(type -> class == OBERON_TYPE_RECORD)
        {
-               gcc_struct = gcc_jit_context_new_opaque_struct(gcc_context, NULL, "");
+               char name[32];
+               snprintf(name, 32, "RECORD%u", gen_context -> record_count);
+               gen_context -> record_count += 1;
+
+               gcc_struct = gcc_jit_context_new_opaque_struct(gcc_context, NULL, name);
                gcc_type = gcc_jit_struct_as_type(gcc_struct);
        }
        else if(type -> class == OBERON_TYPE_POINTER)
@@ -165,21 +185,36 @@ oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
        gcc_jit_type * gcc_type = gen_type -> gcc_type;
        const char * name = var -> name;
 
-       // TODO var param
        gcc_jit_lvalue * gcc_lvalue = NULL;
        gcc_jit_param * gcc_param = NULL;
        gcc_jit_field * gcc_field = NULL;
        if(var -> class == OBERON_CLASS_VAR)
        {
-               gcc_lvalue = gcc_jit_context_new_global(
-                       gcc_context, NULL, GCC_JIT_GLOBAL_INTERNAL, gcc_type, name
-               );
+               if(var -> local)
+               {
+                       gen_proc_t * gen_func = var -> parent -> gen_proc;
+                       gcc_jit_function * func = gen_func -> gcc_func;
+                       
+                       gcc_lvalue = gcc_jit_function_new_local(func, NULL, gcc_type, name);
+               }
+               else
+               {
+                       gcc_lvalue = gcc_jit_context_new_global(
+                               gcc_context, NULL, GCC_JIT_GLOBAL_INTERNAL, gcc_type, name
+                       );
+               }
        }
        else if(var -> class == OBERON_CLASS_PARAM)
        {
                gcc_param = gcc_jit_context_new_param(gcc_context, NULL, gcc_type, name);
                gcc_lvalue = gcc_jit_param_as_lvalue(gcc_param);
        }
+       else if(var -> class == OBERON_CLASS_VAR_PARAM)
+       {
+               gcc_type = gcc_jit_type_get_pointer(gcc_type);
+               gcc_param = gcc_jit_context_new_param(gcc_context, NULL, gcc_type, name);
+               gcc_lvalue = gcc_jit_param_as_lvalue(gcc_param);
+       }
        else if(var -> class == OBERON_CLASS_FIELD)
        {
                gcc_field = gcc_jit_context_new_field(gcc_context, NULL, gcc_type, name);
@@ -197,7 +232,10 @@ oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
 void
 oberon_generator_init_proc(oberon_context_t * ctx, oberon_object_t * proc)
 {
-       assert(proc -> class == OBERON_CLASS_PROC);
+       if(proc -> local)
+       {
+               oberon_error(ctx, "generator: local procedures not supported");
+       }
 
        gen_context_t * gen_context = ctx -> gen_context;
        gcc_jit_context * gcc_context = gen_context -> gcc_context;
@@ -250,7 +288,7 @@ oberon_generate_begin_module(oberon_context_t * ctx)
        );
        gcc_jit_block * gcc_block = gcc_jit_function_new_block(func, NULL);
 
-       gen_context -> gcc_block = gcc_block;
+       oberon_generator_open_block(gen_context, gcc_block);
 }
 
 void
@@ -259,11 +297,11 @@ oberon_generate_end_module(oberon_context_t * ctx)
        printcontext(ctx, "oberon_generate_end_module");
 
        gen_context_t * gen_context = ctx -> gen_context;
-       gcc_jit_block * gcc_block = gen_context -> gcc_block;
+       gcc_jit_block * gcc_block = gen_context -> block -> gcc_block;
 
        gcc_jit_block_end_with_void_return(gcc_block, NULL);
 
-       gen_context -> gcc_block = NULL;
+       oberon_generator_close_block(gen_context);
 }
 
 void
@@ -275,15 +313,15 @@ oberon_generate_begin_proc(oberon_context_t * ctx, oberon_object_t * proc)
        gcc_jit_function * func = gen_proc -> gcc_func;
        gcc_jit_block * gcc_block = gcc_jit_function_new_block(func, NULL);
 
-       // TODO make stack for block
-       gen_context -> gcc_block = gcc_block;
+       oberon_generator_open_block(gen_context, gcc_block);
 }
 
 void
 oberon_generate_call_proc(oberon_context_t * ctx, oberon_expr_t * desig)
 {
        gen_context_t * gen_context = ctx -> gen_context;
-       gcc_jit_block * block = gen_context -> gcc_block;
+       gen_block_t * gen_block = gen_context -> block;
+       gcc_jit_block * block = gen_block -> gcc_block;
 
        gcc_jit_rvalue * return_value;
        return_value = rvalue_from_expr(ctx, desig);
@@ -294,14 +332,15 @@ void
 oberon_generate_end_proc(oberon_context_t * ctx)
 {
        gen_context_t * gen_context = ctx -> gen_context;
-       gen_context -> gcc_block = NULL;
+       oberon_generator_close_block(gen_context);
 }
 
 void
 oberon_generate_return(oberon_context_t * ctx, oberon_expr_t * expr)
 {
        gen_context_t * gen_context = ctx -> gen_context;
-       gcc_jit_block * gcc_block = gen_context -> gcc_block;
+       gen_block_t * gen_block = gen_context -> block;
+       gcc_jit_block * gcc_block = gen_block -> gcc_block;
 
        if(expr == NULL)
        {
@@ -326,6 +365,11 @@ lvalue_from_item(oberon_context_t * ctx, oberon_item_t * item)
        {
                gen_var_t * gen_var = item -> var -> gen_var;
                left = gen_var -> gcc_lvalue;
+               if(item -> var -> class == OBERON_CLASS_VAR_PARAM)
+               {
+                       gcc_jit_rvalue * r = gcc_jit_lvalue_as_rvalue(left);
+                       left = gcc_jit_rvalue_dereference(r, NULL);
+               }
        }
        else if(item -> mode == MODE_INDEX)
        {
@@ -384,10 +428,8 @@ rvalue_from_item(oberon_context_t * ctx, oberon_item_t * item)
        gcc_jit_rvalue * right;
        if(item -> mode == MODE_VAR)
        {
-               assert(item -> var -> class == OBERON_CLASS_VAR
-                       || item -> var -> class == OBERON_CLASS_PARAM);
-               gen_var_t * gen_var = item -> var -> gen_var;
-               right = gcc_jit_lvalue_as_rvalue(gen_var -> gcc_lvalue);
+               gcc_jit_lvalue * left = lvalue_from_item(ctx, item);
+               right = gcc_jit_lvalue_as_rvalue(left);
        }
        else if(item -> mode == MODE_INTEGER)
        {
@@ -410,16 +452,27 @@ rvalue_from_item(oberon_context_t * ctx, oberon_item_t * item)
        {
                assert(item -> var -> class == OBERON_CLASS_PROC);
 
+               oberon_type_t * signature = item -> var -> type;
                gen_proc_t * gen_proc = item -> var -> gen_proc;
 
                int num_args = item -> num_args;
                gcc_jit_rvalue *args[num_args];
 
                oberon_expr_t * expr = item -> args;
+               oberon_object_t * arg_param = signature -> decl;
                for(int i = 0; i < num_args; i++)
                {
-                       args[i] = rvalue_from_expr(ctx, expr);
+                       if(arg_param -> class == OBERON_CLASS_VAR_PARAM)
+                       {
+                               gcc_jit_lvalue * left = lvalue_from_expr(ctx, expr);
+                               args[i] = gcc_jit_lvalue_get_address(left, NULL);
+                       }
+                       else
+                       {
+                               args[i] = rvalue_from_expr(ctx, expr);
+                       }
                        expr = expr -> next;
+                       arg_param = arg_param -> next;
                }
 
                gcc_jit_function * func = gen_proc -> gcc_func;
@@ -466,14 +519,19 @@ struct {
                enum gcc_jit_comparison comp_op;
        };
 } op_table[] = {
-       { 0, .unary_op = GCC_JIT_UNARY_OP_LOGICAL_NEGATE },
        { 0, .unary_op = GCC_JIT_UNARY_OP_MINUS },
+       { 0, .unary_op = GCC_JIT_UNARY_OP_BITWISE_NEGATE },
+       { 0, .unary_op = GCC_JIT_UNARY_OP_LOGICAL_NEGATE },
+       { 0, .unary_op = GCC_JIT_UNARY_OP_ABS },
 
        { 1, .binary_op = GCC_JIT_BINARY_OP_PLUS },
        { 1, .binary_op = GCC_JIT_BINARY_OP_MINUS },
        { 1, .binary_op = GCC_JIT_BINARY_OP_MULT },
        { 1, .binary_op = GCC_JIT_BINARY_OP_DIVIDE },
        { 1, .binary_op = GCC_JIT_BINARY_OP_MODULO },
+       { 1, .binary_op = GCC_JIT_BINARY_OP_BITWISE_AND },
+       { 1, .binary_op = GCC_JIT_BINARY_OP_BITWISE_XOR },
+       { 1, .binary_op = GCC_JIT_BINARY_OP_BITWISE_OR },
        { 1, .binary_op = GCC_JIT_BINARY_OP_LOGICAL_AND },
        { 1, .binary_op = GCC_JIT_BINARY_OP_LOGICAL_OR },
 
@@ -565,7 +623,8 @@ oberon_generate_assign(oberon_context_t * ctx, oberon_expr_t * src, oberon_expr_
        }
 
        gen_context_t * gen_context = ctx -> gen_context;
-       gcc_jit_block * gcc_block = gen_context -> gcc_block;
+       gen_block_t * gen_block = gen_context -> block;
+       gcc_jit_block * gcc_block = gen_block -> gcc_block;
        gcc_jit_block_add_assignment(gcc_block, NULL, left, right);
 }