{
return FALSE;
}
-
+
if (!IS_AST_LIT_VALUE(decorateType(resolveSymbols(iLoop->init.node))))
{
return FALSE;
}
iLoop = iLoop->next;
}
-
+
// We've now established that the initializer list contains only literal values.
-
+
iLoop = src->init.deep;
while (iLoop)
{
double val = AST_LIT_VALUE(iLoop->init.node);
-
+
if (last && last->literalValue == val)
{
last->count++;
/*------------------------------------------------------------------*/
/* resolveIvalSym - resolve symbols in initial values */
/*------------------------------------------------------------------*/
-void
+void
resolveIvalSym (initList * ilist)
{
if (!ilist)
}
return val;
}
+
+#else
+
+static value *cheapestVal (value *val)
+{
+ /* - signed/unsigned must not be changed.
+ - long must not be changed.
+
+ the only possible reduction is from signed int to signed char,
+ because it's automatically promoted back to signed int.
+
+ a reduction from unsigned int to unsigned char is a bug,
+ because an _unsigned_ char is promoted to _signed_ int! */
+ if (IS_INT(val->type) &&
+ !SPEC_USIGN(val->type) &&
+ !SPEC_LONG(val->type) &&
+ SPEC_CVAL(val->type).v_int >= -128 &&
+ SPEC_CVAL(val->type).v_int <= 127)
+
+ {
+ SPEC_NOUN(val->type) = V_CHAR;
+ }
+ /* this could be too aggressive:
+ 'unsigned char' promotes to 'signed int', so that we can
+ reduce it the other way */
+ if (IS_INT(val->type) &&
+ !SPEC_USIGN(val->type) &&
+ !SPEC_LONG(val->type) &&
+ SPEC_CVAL(val->type).v_int >= 128 &&
+ SPEC_CVAL(val->type).v_int <= 255)
+
+ {
+ SPEC_NOUN(val->type) = V_CHAR;
+ SPEC_USIGN(val->type) = 1;
+ }
+ return (val);
+}
#endif
/*-----------------------------------------------------------------*/
val->type = val->etype = newLink (SPECIFIER); /* create the spcifier */
SPEC_SCLS (val->type) = S_LITERAL;
- // let's start with an unsigned char
+ // let's start with a signed char
SPEC_NOUN (val->type) = V_CHAR;
SPEC_USIGN (val->type) = 0;
SPEC_LONG (val->type) = 1;
}
} else { // >=0
- if (dval>0xff && SPEC_USIGN (val->type)) { // check if we have to promote to int
+ if (dval>0xff || /* check if we have to promote to int */
+ SPEC_USIGN (val->type)) { /* if it's unsigned, we can't use unsigned
+ char. After an integral promotion it will
+ be a signed int; this certainly isn't what
+ the programer wants */
SPEC_NOUN (val->type) = V_INT;
}
else if (dval>0x7f && !SPEC_USIGN (val->type)) { // check if we have to promote to int
+#if 0
if ((hex || octal) && /* hex or octal constants may be stored in unsigned type */
dval<=0xff) {
SPEC_USIGN (val->type) = 1;
} else {
- SPEC_NOUN (val->type) = V_INT;
+ SPEC_NOUN (val->type) = V_INT;
}
+#else
+ /* this is quite agressive: 'unsigned char' will be promoted to 'signed int',
+ so that the signedness of a char shouldn't matter */
+ SPEC_USIGN (val->type) = 1;
+#endif
}
if (dval>0xffff && SPEC_USIGN (val->type)) { // check if we have to promote to long
SPEC_LONG (val->type) = 1;
SPEC_NOUN (val->type) = (IS_FLOAT (lval->etype) ||
IS_FLOAT (rval->etype) ? V_FLOAT : V_INT);
SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */
- SPEC_USIGN (val->type) = (SPEC_USIGN (lval->etype) | SPEC_USIGN (rval->etype));
SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype));
-
+ SPEC_USIGN (val->type) = SPEC_USIGN (computeType (lval->etype,
+ rval->etype,
+ TRUE));
if (IS_FLOAT (val->type))
SPEC_CVAL (val->type).v_float = floatFromVal (lval) * floatFromVal (rval);
/* signed and unsigned mul are the same, as long as the precision of the
else if (SPEC_LONG (val->type))
SPEC_CVAL (val->type).v_ulong = (TYPE_UDWORD) floatFromVal (lval) *
(TYPE_UDWORD) floatFromVal (rval);
- else if (SPEC_USIGN (val->type)) /* unsigned */
+ else if (SPEC_USIGN (val->type)) /* unsigned int */
{
TYPE_UDWORD ul = (TYPE_UWORD) floatFromVal (lval) *
(TYPE_UWORD) floatFromVal (rval);
SPEC_CVAL (val->type).v_uint = (TYPE_UWORD) ul;
- if (!options.lessPedantic &&
- ul != SPEC_CVAL (val->type).v_uint)
+ if (ul != (TYPE_UWORD) ul)
werror (W_INT_OVL);
}
- else /* int */
+ else /* signed int */
{
TYPE_DWORD l = (TYPE_WORD) floatFromVal (lval) *
(TYPE_WORD) floatFromVal (rval);
SPEC_CVAL (val->type).v_int = (TYPE_WORD) l;
- if (!options.lessPedantic &&
- l != SPEC_CVAL (val->type).v_int)
+ if (l != (TYPE_WORD) l)
werror (W_INT_OVL);
}
-#ifdef REDUCE_LITERALS
- return cheapestVal(val);
-#else
- return val;
-#endif
+ return cheapestVal (val);
}
/*------------------------------------------------------------------*/
SPEC_NOUN (val->type) = (IS_FLOAT (lval->etype) ||
IS_FLOAT (rval->etype) ? V_FLOAT : V_INT);
SPEC_SCLS (val->etype) = S_LITERAL;
- SPEC_USIGN (val->type) = (SPEC_USIGN (lval->etype) | SPEC_USIGN (rval->etype));
SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype));
+ SPEC_USIGN (val->type) = SPEC_USIGN (computeType (lval->etype,
+ rval->etype,
+ TRUE));
if (IS_FLOAT (val->type))
SPEC_CVAL (val->type).v_float = floatFromVal (lval) / floatFromVal (rval);
+ else if (SPEC_LONG (val->type))
+ {
+ if (SPEC_USIGN (val->type))
+ SPEC_CVAL (val->type).v_ulong = (TYPE_UDWORD) floatFromVal (lval) /
+ (TYPE_UDWORD) floatFromVal (rval);
+ else
+ SPEC_CVAL (val->type).v_long = (TYPE_DWORD) floatFromVal (lval) /
+ (TYPE_DWORD) floatFromVal (rval);
+ }
else
{
- if (SPEC_LONG (val->type))
- {
- if (SPEC_USIGN (val->type))
- SPEC_CVAL (val->type).v_ulong = (TYPE_UDWORD) floatFromVal (lval) /
- (TYPE_UDWORD) floatFromVal (rval);
- else
- SPEC_CVAL (val->type).v_long = (TYPE_DWORD) floatFromVal (lval) /
- (TYPE_DWORD) floatFromVal (rval);
- }
+ if (SPEC_USIGN (val->type))
+ SPEC_CVAL (val->type).v_uint = (TYPE_UWORD) floatFromVal (lval) /
+ (TYPE_UWORD) floatFromVal (rval);
else
- {
- if (SPEC_USIGN (val->type)) {
- SPEC_CVAL (val->type).v_uint = (TYPE_UWORD) floatFromVal (lval) /
- (TYPE_UWORD) floatFromVal (rval);
- } else {
- SPEC_CVAL (val->type).v_int = (TYPE_WORD) floatFromVal (lval) /
- (TYPE_WORD) floatFromVal (rval);
- }
- }
+ SPEC_CVAL (val->type).v_int = (TYPE_WORD) floatFromVal (lval) /
+ (TYPE_WORD) floatFromVal (rval);
}
-#ifdef REDUCE_LITERALS
- return cheapestVal(val);
-#else
- return val;
-#endif
+ return cheapestVal (val);
}
/*------------------------------------------------------------------*/
val->type = val->etype = newLink (SPECIFIER);
SPEC_NOUN (val->type) = V_INT; /* type is int */
SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */
- SPEC_USIGN (val->type) = (SPEC_USIGN (lval->etype) | SPEC_USIGN (rval->etype));
SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype));
+ SPEC_USIGN (val->type) = SPEC_USIGN (computeType (lval->etype,
+ rval->etype,
+ TRUE));
if (SPEC_LONG (val->type))
{
}
else
{
- if (SPEC_USIGN (val->type)) {
- SPEC_CVAL (val->type).v_uint = (TYPE_UWORD) floatFromVal (lval) %
- (TYPE_UWORD) floatFromVal (rval);
- } else {
- SPEC_CVAL (val->type).v_int = (TYPE_WORD) floatFromVal (lval) %
- (TYPE_WORD) floatFromVal (rval);
- }
+ if (SPEC_USIGN (val->type))
+ SPEC_CVAL (val->type).v_uint = (TYPE_UWORD) floatFromVal (lval) %
+ (TYPE_UWORD) floatFromVal (rval);
+ else
+ SPEC_CVAL (val->type).v_int = (TYPE_WORD) floatFromVal (lval) %
+ (TYPE_WORD) floatFromVal (rval);
}
-
-#ifdef REDUCE_LITERALS
- return cheapestVal(val);
-#else
- return val;
-#endif
+ return cheapestVal (val);
}
/*------------------------------------------------------------------*/
val->type = val->etype = newLink (SPECIFIER);
SPEC_NOUN (val->type) = (IS_FLOAT (lval->etype) ||
IS_FLOAT (rval->etype) ? V_FLOAT : V_INT);
- SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */
- SPEC_USIGN (val->type) =
- SPEC_USIGN (lval->etype) &&
- SPEC_USIGN (rval->etype) &&
- (floatFromVal(lval)+floatFromVal(rval))>=0;
-
- SPEC_LONG (val->type) = 1;
-
+ SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */
+ SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype));
+ SPEC_USIGN (val->type) = SPEC_USIGN (computeType (lval->etype,
+ rval->etype,
+ TRUE));
if (IS_FLOAT (val->type))
SPEC_CVAL (val->type).v_float = floatFromVal (lval) + floatFromVal (rval);
+ else if (SPEC_LONG (val->type))
+ {
+ if (SPEC_USIGN (val->type))
+ SPEC_CVAL (val->type).v_ulong = (TYPE_UDWORD) floatFromVal (lval) +
+ (TYPE_UDWORD) floatFromVal (rval);
+ else
+ SPEC_CVAL (val->type).v_long = (TYPE_DWORD) floatFromVal (lval) +
+ (TYPE_DWORD) floatFromVal (rval);
+ }
else
{
- if (SPEC_LONG (val->type))
- {
- if (SPEC_USIGN (val->type))
- SPEC_CVAL (val->type).v_ulong = (unsigned long) floatFromVal (lval) +
- (unsigned long) floatFromVal (rval);
- else
- SPEC_CVAL (val->type).v_long = (long) floatFromVal (lval) +
- (long) floatFromVal (rval);
- }
+ if (SPEC_USIGN (val->type))
+ SPEC_CVAL (val->type).v_uint = (TYPE_UWORD) floatFromVal (lval) +
+ (TYPE_UWORD) floatFromVal (rval);
+ else
+ SPEC_CVAL (val->type).v_int = (TYPE_WORD) floatFromVal (lval) +
+ (TYPE_WORD) floatFromVal (rval);
}
-#ifdef REDUCE_LITERALS
- return cheapestVal(val);
-#else
- return val;
-#endif
+ return cheapestVal (val);
}
/*------------------------------------------------------------------*/
SPEC_NOUN (val->type) = (IS_FLOAT (lval->etype) ||
IS_FLOAT (rval->etype) ? V_FLOAT : V_INT);
SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */
- SPEC_USIGN (val->type) =
- SPEC_USIGN (lval->etype) &&
- SPEC_USIGN (rval->etype) &&
- (floatFromVal(lval)-floatFromVal(rval))>=0;
-
- SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype));
-
+ SPEC_LONG (val->type) = (SPEC_LONG (lval->etype) | SPEC_LONG (rval->etype));
+ SPEC_USIGN (val->type) = SPEC_USIGN (computeType (lval->etype,
+ rval->etype,
+ FALSE));
if (IS_FLOAT (val->type))
SPEC_CVAL (val->type).v_float = floatFromVal (lval) - floatFromVal (rval);
- else
+ else if (SPEC_LONG (val->type))
{
- if (SPEC_LONG (val->type))
- {
- if (SPEC_USIGN (val->type)) {
- SPEC_CVAL (val->type).v_ulong =
- (unsigned long) floatFromVal (lval) -
- (unsigned long) floatFromVal (rval);
- } else {
- SPEC_CVAL (val->type).v_long = (long) floatFromVal (lval) -
- (long) floatFromVal (rval);
- }
- }
+ if (SPEC_USIGN (val->type))
+ SPEC_CVAL (val->type).v_ulong = (TYPE_UDWORD) floatFromVal (lval) -
+ (TYPE_UDWORD) floatFromVal (rval);
else
- {
- if (SPEC_USIGN (val->type)) {
- SPEC_CVAL (val->type).v_uint = (unsigned) floatFromVal (lval) -
- (unsigned) floatFromVal (rval);
- } else {
- SPEC_CVAL (val->type).v_int = (int) floatFromVal (lval) -
- (int) floatFromVal (rval);
- }
- }
+ SPEC_CVAL (val->type).v_long = (TYPE_DWORD) floatFromVal (lval) -
+ (TYPE_DWORD) floatFromVal (rval);
}
-#ifdef REDUCE_LITERALS
- return cheapestVal(val);
-#else
- return val;
-#endif
+ else
+ {
+ if (SPEC_USIGN (val->type))
+ SPEC_CVAL (val->type).v_uint = (TYPE_UWORD) floatFromVal (lval) -
+ (TYPE_UWORD) floatFromVal (rval);
+ else
+ SPEC_CVAL (val->type).v_int = (TYPE_WORD) floatFromVal (lval) -
+ (TYPE_WORD) floatFromVal (rval);
+ }
+ return cheapestVal (val);
}
/*------------------------------------------------------------------*/
val = newValue ();
val->type = val->etype = newIntLink ();
SPEC_SCLS (val->type) = S_LITERAL; /* will remain literal */
- SPEC_USIGN (val->type) = (SPEC_USIGN (lval->etype) & SPEC_USIGN (rval->etype));
- SPEC_LONG (val->type) = 1;
+ SPEC_NOUN (val->etype) = V_INT;
+ /* 'unsigned char' promotes to 'signed int' */
+ if (!IS_CHAR (lval->etype))
+ SPEC_USIGN (val->type) = SPEC_USIGN (lval->etype);
+ SPEC_LONG (val->type) = SPEC_LONG (lval->etype);
+
+ if (getSize (lval->type) * 8 <= (TYPE_UDWORD) floatFromVal (rval) &&
+ /* left shift */
+ (lr ||
+ /* right shift and unsigned */
+ (!lr && SPEC_USIGN (rval->type))))
+ {
+ werror (W_SHIFT_CHANGED, (lr ? "left" : "right"));
+ }
if (SPEC_LONG (val->type))
{
if (SPEC_USIGN (val->type))
- SPEC_CVAL (val->type).v_ulong = lr ?
- (unsigned long) floatFromVal (lval) << (unsigned long) floatFromVal (rval) : \
- (unsigned long) floatFromVal (lval) >> (unsigned long) floatFromVal (rval);
+ {
+ SPEC_CVAL (val->type).v_ulong = lr ?
+ (TYPE_UDWORD) floatFromVal (lval) << (TYPE_UWORD) floatFromVal (rval) : \
+ (TYPE_UDWORD) floatFromVal (lval) >> (TYPE_UWORD) floatFromVal (rval);
+ }
else
- SPEC_CVAL (val->type).v_long = lr ?
- (long) floatFromVal (lval) << (long) floatFromVal (rval) : \
- (long) floatFromVal (lval) >> (long) floatFromVal (rval);
+ {
+ SPEC_CVAL (val->type).v_long = lr ?
+ (TYPE_DWORD) floatFromVal (lval) << (TYPE_UWORD) floatFromVal (rval) : \
+ (TYPE_DWORD) floatFromVal (lval) >> (TYPE_UWORD) floatFromVal (rval);
+ }
}
-
-#ifdef REDUCE_LITERALS
- return cheapestVal(val);
-#else
- return val;
-#endif
+ else
+ {
+ if (SPEC_USIGN (val->type))
+ {
+ SPEC_CVAL (val->type).v_uint = lr ?
+ (TYPE_UWORD) floatFromVal (lval) << (TYPE_UWORD) floatFromVal (rval) : \
+ (TYPE_UWORD) floatFromVal (lval) >> (TYPE_UWORD) floatFromVal (rval);
+ }
+ else
+ {
+ SPEC_CVAL (val->type).v_int = lr ?
+ (TYPE_WORD) floatFromVal (lval) << (TYPE_UWORD) floatFromVal (rval) : \
+ (TYPE_WORD) floatFromVal (lval) >> (TYPE_UWORD) floatFromVal (rval);
+ }
+ }
+ return cheapestVal (val);
}
/*------------------------------------------------------------------*/
break;
case EQ_OP:
- SPEC_CVAL (val->type).v_int = floatFromVal (lval) == floatFromVal (rval);
+ if (SPEC_NOUN(lval->type) == V_FLOAT ||
+ SPEC_NOUN(rval->type) == V_FLOAT)
+ {
+ SPEC_CVAL (val->type).v_int = floatFromVal (lval) == floatFromVal (rval);
+ }
+ else
+ {
+ /* integrals: ignore signedness */
+ TYPE_UDWORD l, r;
+
+ l = (TYPE_UDWORD) floatFromVal (lval);
+ r = (TYPE_UDWORD) floatFromVal (rval);
+ /* In order to correctly compare 'signed int' and 'unsigned int' it's
+ neccessary to strip them to 16 bit.
+ Literals are reduced to their cheapest type, therefore left and
+ right might have different types. It's neccessary to find a
+ common type: int (used for char too) or long */
+ if (!IS_LONG (lval->etype) &&
+ !IS_LONG (rval->etype))
+ {
+ r = (TYPE_UWORD) r;
+ l = (TYPE_UWORD) l;
+ }
+ SPEC_CVAL (val->type).v_int = l == r;
+ }
break;
-
case NE_OP:
- SPEC_CVAL (val->type).v_int = floatFromVal (lval) != floatFromVal (rval);
+ if (SPEC_NOUN(lval->type) == V_FLOAT ||
+ SPEC_NOUN(rval->type) == V_FLOAT)
+ {
+ SPEC_CVAL (val->type).v_int = floatFromVal (lval) != floatFromVal (rval);
+ }
+ else
+ {
+ /* integrals: ignore signedness */
+ TYPE_UDWORD l, r;
+
+ l = (TYPE_UDWORD) floatFromVal (lval);
+ r = (TYPE_UDWORD) floatFromVal (rval);
+ /* In order to correctly compare 'signed int' and 'unsigned int' it's
+ neccessary to strip them to 16 bit.
+ Literals are reduced to their cheapest type, therefore left and
+ right might have different types. It's neccessary to find a
+ common type: int (used for char too) or long */
+ if (!IS_LONG (lval->etype) &&
+ !IS_LONG (rval->etype))
+ {
+ r = (TYPE_UWORD) r;
+ l = (TYPE_UWORD) l;
+ }
+ SPEC_CVAL (val->type).v_int = l != r;
+ }
break;
}
break;
}
-#ifdef REDUCE_LITERALS
return cheapestVal(val);
-#else
- return val;
-#endif
}
/*------------------------------------------------------------------*/
valCastLiteral (sym_link * dtype, double fval)
{
value *val;
+ TYPE_UDWORD l = (TYPE_UDWORD)fval;
if (!dtype)
return NULL;
val = newValue ();
val->etype = getSpec (val->type = copyLinkChain (dtype));
SPEC_SCLS (val->etype) = S_LITERAL;
- TYPE_UDWORD l = (TYPE_UDWORD)fval;
/* if it is not a specifier then we can assume that */
/* it will be an unsigned long */
val->type = newLink (DECLARATOR);
if (SPEC_SCLS (arrExpr->left->etype) == S_CODE)
- {
- DCL_TYPE (val->type) = CPOINTER;
- DCL_PTR_CONST (val->type) = port->mem.code_ro;
- }
+ DCL_TYPE (val->type) = CPOINTER;
else if (SPEC_SCLS (arrExpr->left->etype) == S_XDATA)
DCL_TYPE (val->type) = FPOINTER;
else if (SPEC_SCLS (arrExpr->left->etype) == S_XSTACK)
val->type = newLink (DECLARATOR);
if (SPEC_SCLS (structT->etype) == S_CODE)
- {
- DCL_TYPE (val->type) = CPOINTER;
- DCL_PTR_CONST (val->type) = port->mem.code_ro;
- }
+ DCL_TYPE (val->type) = CPOINTER;
else if (SPEC_SCLS (structT->etype) == S_XDATA)
DCL_TYPE (val->type) = FPOINTER;
else if (SPEC_SCLS (structT->etype) == S_XSTACK)
projects / fw / sdcc / blobdiff