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Fix returning strings from variadic functions (lost changes) (#399)

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Vincent Herbet 2017-01-09 20:40:28 +01:00 committed by GitHub
parent 3e660011b2
commit faa9f6ea9f
1 changed files with 17 additions and 1 deletions
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18
compiler/libpc300/sc1.c
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@ -5308,6 +5308,18 @@ static symbol *fetchlab(char *name)
return sym; return sym;
} }
static int is_variadic(symbol *sym)
{
arginfo *arg;
assert(sym->ident==iFUNCTN);
for (arg = sym->dim.arglist; arg->ident; arg++) {
if (arg->ident == iVARARGS)
return TRUE;
}
return FALSE;
}
/* doreturn /* doreturn
* *
* Global references: rettype (altered) * Global references: rettype (altered)
@ -5412,7 +5424,11 @@ static void doreturn(void)
* it stays on the heap for the moment, and it is removed -usually- at * 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) * the end of the expression/statement, see expression() in SC3.C)
*/ */
address(sub,sALT); /* ALT = destination */ if (is_variadic(curfunc)) {
load_hidden_arg();
} else {
address(sub,sALT); /* ALT = destination */
}
arraysize=calc_arraysize(dim,numdim,0); arraysize=calc_arraysize(dim,numdim,0);
memcopy(arraysize*sizeof(cell)); /* source already in PRI */ memcopy(arraysize*sizeof(cell)); /* source already in PRI */
/* moveto1(); is not necessary, callfunction() does a popreg() */ /* moveto1(); is not necessary, callfunction() does a popreg() */