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Compiler: Revert "Fix runtime error in variadic functions that return strings."

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Better fix by dvander will be provided later.
This commit is contained in:
Arkshine 2014-08-17 10:47:03 +02:00
parent cea2f598b2
commit 32b546df69
3 changed files with 1 additions and 52 deletions
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2
compiler/libpc300/sc.h
View File

@ -578,7 +578,6 @@ SC_FUNC void startfunc(char *fname);
SC_FUNC void endfunc(void);
SC_FUNC void alignframe(int numbytes);
SC_FUNC void rvalue(value *lval);
SC_FUNC void dereference(void);
SC_FUNC void address(symbol *ptr,regid reg);
SC_FUNC void store(value *lval);
SC_FUNC void storereg(cell address,regid reg);
@ -599,7 +598,6 @@ SC_FUNC void ffabort(int reason);
SC_FUNC void ffbounds(cell size);
SC_FUNC void jumplabel(int number);
SC_FUNC void defstorage(void);
SC_FUNC void getfrm(void);
SC_FUNC void modstk(int delta);
SC_FUNC void setstk(cell value);
SC_FUNC void modheap(int delta);

30
compiler/libpc300/sc1.c
View File

@ -5327,22 +5327,6 @@ static symbol *fetchlab(char *name)
return sym;
}
/* isvariadic
*
* Checks if the function is variadic.
*/
static int isvariadic(symbol *sym)
{
int i;
for (i=0; curfunc->dim.arglist[i].ident!=0; i++) {
/* check whether this is a variadic function */
if (curfunc->dim.arglist[i].ident==iVARARGS) {
return TRUE;
} /* if */
} /* for */
return FALSE;
}
/* doreturn
*
* Global references: rettype (altered)
@ -5447,19 +5431,7 @@ static void doreturn(void)
* it stays on the heap for the moment, and it is removed -usually- at
* the end of the expression/statement, see expression() in SC3.C)
*/
if (isvariadic(sub)) {
pushreg(sPRI); /* save source address stored in PRI */
sub->addr=2*sizeof(cell);
address(sub,sALT); /* get the number of arguments */
getfrm();
addconst(3*sizeof(cell));
ob_add();
dereference();
swap1();
popreg(sALT); /* ALT = destination */
} else {
address(sub,sALT); /* ALT = destination */
} /* if */
address(sub,sALT); /* ALT = destination */
arraysize=calc_arraysize(dim,numdim,0);
memcopy(arraysize*sizeof(cell)); /* source already in PRI */
/* moveto1(); is not necessary, callfunction() does a popreg() */

21
compiler/libpc300/sc4.c
View File

@ -410,16 +410,6 @@ SC_FUNC void rvalue(value *lval)
} /* if */
}
/* dereference
*
* Get a cell from a memory address stored in the primary register
*/
SC_FUNC void dereference(void)
{
stgwrite("\tload.i\n");
code_idx+=opcodes(1);
}
/* Get the address of a symbol into the primary or alternate register (used
* for arrays, and for passing arguments by reference).
*/
@ -839,17 +829,6 @@ SC_FUNC void defstorage(void)
stgwrite("dump ");
}
/*
* Copies frame address to primary register
*/
SC_FUNC void getfrm(void)
{
stgwrite("\tlctrl 5\n");
code_idx+=opcodes(1)+opargs(1);
}
/**
* Inclrement/decrement stack pointer. Note that this routine does
* nothing if the delta is zero.