-/* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors: Martin Trapp, Christian Schaefer
-**
-*/
+/*
+ * Project: libFIRM
+ * File name: ir/ir/irmode.c
+ * Purpose: Data modes of operations.
+ * Author: Martin Trapp, Christian Schaefer
+ * Modified by: Goetz Lindenmaier, Mathias Heil
+ * Created:
+ * CVS-ID: $Id$
+ * Copyright: (c) 1998-2003 Universität Karlsruhe
+ * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ */
-/* $Id$ */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
-# include "irmode_t.h"
-# include "ident.h"
# include <stdlib.h>
# include <stddef.h>
# include <string.h>
+# include <stdbool.h>
+
+# include "irmode_t.h"
+# include "ident.h"
# include "tv.h"
# include "obst.h"
-# include "misc.h"
#if 0
static long long count = 0;
INLINE static int modes_are_equal(const ir_mode *m, const ir_mode *n)
{
if (m == n) return 1;
- if (0 == memcmp(&m->sort, &n->sort, offsetof(ir_mode,min) - offsetof(ir_mode,sort))) return 1;
+ if (m->sort == n->sort &&
+ m->arithmetic == n->arithmetic &&
+ m->size == n->size &&
+ m->align == n->align &&
+ m->sign == n->sign &&
+ m->modulo_shift == n->modulo_shift)
+ return 1;
return 0;
}
ir_mode *n;
struct _obstack_chunk *p;
- p=modes.chunk;
- for( n=(ir_mode*) p->contents; (char *)n < modes.next_free; n+=sizeof(ir_mode) )
- {
- if(modes_are_equal(n,m)) return n;
+ p = modes.chunk;
+ for ( n = (ir_mode *)p->contents; (char *)(n+1) <= modes.next_free; ++n) {
+ assert(is_mode(n));
+ if (modes_are_equal(n, m))
+ return n;
}
- for (p = p->prev; p; p = p->prev)
- {
- for( n=(ir_mode*) p->contents; (char *)n < p->limit; n+=sizeof(ir_mode) )
- {
- if(modes_are_equal(n,m)) return n;
- }
+ for (p = p->prev; p; p = p->prev) {
+ for (n = (ir_mode *)p->contents; (char *)(n+1) < p->limit; ++n)
+ assert(is_mode(n));
+ if (modes_are_equal(n, m))
+ return n;
}
return NULL;
/*
* Creates a new mode.
*/
-ir_mode *new_ir_mode(const char *name, mode_sort sort, int bit_size, int align, int sign, mode_arithmetic arithmetic )
+ir_mode *new_ir_mode(const char *name, mode_sort sort, int bit_size, int align, int sign,
+ mode_arithmetic arithmetic, unsigned int modulo_shift )
{
ir_mode mode_tmpl;
ir_mode *mode;
+ mode_tmpl.name = new_id_from_str(name);
+ mode_tmpl.sort = sort;
+ mode_tmpl.size = bit_size;
+ mode_tmpl.align = align;
+ mode_tmpl.sign = sign ? 1 : 0;
+ mode_tmpl.modulo_shift = (mode_tmpl.sort == irms_int_number) ? modulo_shift : 0;
+ mode_tmpl.arithmetic = arithmetic;
+ mode_tmpl.link = NULL;
+ mode_tmpl.tv_priv = NULL;
+
+ mode = find_mode(&mode_tmpl);
+ if (mode)
+ {
+ return mode;
+ }
+
/* sanity checks */
switch (sort)
{
case irms_internal_boolean:
assert(0 && "internal modes cannot be user defined");
return NULL;
- break;
case irms_float_number:
assert(0 && "not yet implemented");
return NULL;
- break;
case irms_int_number:
case irms_reference:
case irms_character:
- break;
- }
- mode_tmpl.name = new_id_from_str(name);
- mode_tmpl.sort = sort;
- mode_tmpl.size = bit_size;
- mode_tmpl.align = align;
- mode_tmpl.sign = sign ? 1 : 0;
- mode_tmpl.arithmetic = arithmetic;
- mode_tmpl.tv_priv = NULL;
-
- /* first check if there already is a matching mode */
- mode = find_mode(&mode_tmpl);
- if (mode)
- {
- return mode;
- }
- else
- {
- return register_mode(&mode_tmpl);
+ return register_mode(&mode_tmpl);
}
+ return NULL; /* to shut up gcc */
}
/* Functions for the direct access to all attributes od a ir_mode */
get_mode_name(const ir_mode *mode)
{
ANNOUNCE();
- return id_to_str(mode->name);
+ return get_id_str(mode->name);
}
mode_sort
return mode->arithmetic;
}
+
+/* Attribute modulo shift specifies for modes of kind irms_int_number
+ * whether shift applies modulo to value of bits to shift. Asserts
+ * if mode is not irms_int_number.
+ */
+unsigned int get_mode_modulo_shift(const ir_mode *mode) {
+ return mode->modulo_shift;
+}
+
void* get_mode_link(const ir_mode *mode)
{
ANNOUNCE();
/* initialize predefined modes */
/* Internal Modes */
- newmode.arithmetic = irma_none;
- newmode.size = 0;
- newmode.align = 0;
- newmode.sign = 0;
- newmode.tv_priv = NULL;
+ newmode.arithmetic = irma_none;
+ newmode.size = 0;
+ newmode.align = 0;
+ newmode.sign = 0;
+ newmode.modulo_shift = 0;
+ newmode.link = NULL;
+ newmode.tv_priv = NULL;
/* Control Flow Modes*/
newmode.sort = irms_control_flow;
newmode.sign = 1;
newmode.align = 1;
newmode.size = 8;
+ newmode.modulo_shift = 32;
mode_Bs = register_mode(&newmode);
newmode.sign = 0;
newmode.align = 1;
newmode.size = 8;
+ newmode.modulo_shift = 32;
mode_Bu = register_mode(&newmode);
newmode.sign = 1;
newmode.align = 2;
newmode.size = 16;
+ newmode.modulo_shift = 32;
mode_Hs = register_mode(&newmode);
newmode.sign = 0;
newmode.align = 2;
newmode.size = 16;
+ newmode.modulo_shift = 32;
mode_Hu = register_mode(&newmode);
newmode.sign = 1;
newmode.align = 4;
newmode.size = 32;
+ newmode.modulo_shift = 32;
mode_Is = register_mode(&newmode);
newmode.sign = 0;
newmode.align = 4;
newmode.size = 32;
+ newmode.modulo_shift = 32;
mode_Iu = register_mode(&newmode);
newmode.sign = 1;
newmode.align = 4;
newmode.size = 64;
+ newmode.modulo_shift = 64;
mode_Ls = register_mode(&newmode);
newmode.sign = 0;
newmode.align = 4;
newmode.size = 64;
+ newmode.modulo_shift = 64;
mode_Lu = register_mode(&newmode);
newmode.sign = 0;
newmode.align = 1;
newmode.size = 8;
+ newmode.modulo_shift = 32;
mode_C = register_mode(&newmode);
newmode.sign = 0;
newmode.align = 2;
newmode.size = 16;
+ newmode.modulo_shift = 32;
mode_U = register_mode(&newmode);
newmode.sign = 0;
newmode.align = 4;
newmode.size = 32;
+ newmode.modulo_shift = 0;
mode_P = register_mode(&newmode);
projects / libfirm / blobdiff