/*-----------------------------------------------------------------*/
void setUserbpCommand (int bpnum, char *cmds)
{
breakp *bp;
int k;
Dprintf(D_break, ("break: setUserbpCommand %d: commands:\n%send\n",
bpnum, cmds));
for ( bp = hTabFirstItem(bptable,&k); bp ;
bp = hTabNextItem(bptable,&k))
{
if ((bp->bpType == USER || bp->bpType == TMPUSER )
&& ( bp->bpnum == bpnum ))
{
if ( bp->commands )
Safe_free(bp->commands);
bp->commands = cmds;
return;
}
}
fprintf(stderr,"No breakpoint number %d.\n",bpnum);
}
/*-----------------------------------------------------------------*/
void deleteNEXTbp ()
{
breakp *bp;
int k;
Dprintf(D_break, ("break: Deleting all NEXT BPs\n"));
/* for break points delete if they are NEXT */
for ( bp = hTabFirstItem(bptable,&k); bp ;
bp = hTabNextItem(bptable,&k))
{
/* if this is a step then delete */
if (bp->bpType == NEXT)
{
hTabDeleteItem(&bptable,bp->addr,bp,DELETE_ITEM,NULL);
Safe_free(bp);
}
}
}
/*-----------------------------------------------------------------*/
void
dumpLiveRanges (int id, hTab * liveRanges)
{
FILE *file;
symbol *sym;
int k;
if (id) {
file=createDumpFile(id);
} else {
file = stdout;
}
if (currFunc)
fprintf(file,"------------- Func %s -------------\n",currFunc->name);
for (sym = hTabFirstItem (liveRanges, &k); sym;
sym = hTabNextItem (liveRanges, &k))
{
fprintf (file, "%s [k%d lr%d:%d so:%d]{ re%d rm%d}",
(sym->rname[0] ? sym->rname : sym->name),
sym->key,
sym->liveFrom, sym->liveTo,
sym->stack,
sym->isreqv, sym->remat
);
fprintf (file, "{");
printTypeChain (sym->type, file);
if (sym->usl.spillLoc)
{
fprintf (file, "}{ sir@ %s", sym->usl.spillLoc->rname);
}
fprintf (file, "} clashes with ");
bitVectDebugOn(sym->clashes,file);
fprintf (file, "\n");
}
fflush(file);
}
/*-----------------------------------------------------------------*/
void deleteUSERbp (int bpnum)
{
breakp *bp;
int k;
Dprintf(D_break, ("break: deleteUSERbp %d\n", bpnum));
/* for break points delete if they are STEP */
for ( bp = hTabFirstItem(bptable,&k); bp ;
bp = hTabNextItem(bptable,&k)) {
/* if this is a user then delete if break
point matches or bpnumber == -1 (meaning delete
all user break points */
if ((bp->bpType == USER || bp->bpType == TMPUSER )
&& ( bp->bpnum == bpnum || bpnum == -1))
{
hTabDeleteItem(&bptable,bp->addr,bp,DELETE_ITEM,NULL);
/* if this leaves no other break points then
send command to simulator to delete bp from this addr */
if (hTabSearch(bptable,bp->addr) == NULL) {
simClearBP (bp->addr);
Dprintf(D_break, ("break: deleteUSERbp:simClearBP 0x%x\n", bp->addr));
}
fprintf(stdout,"Deleted breakpoint %d\n",bp->bpnum);
userBpPresent-- ;
freeUSERbp(bp);
if (bpnum == -1)
continue ;
else
break;
}
}
if (!bp && bpnum != -1)
fprintf(stderr,"No breakpoint number %d.\n",bpnum);
}
/*-----------------------------------------------------------------*/
static bool
checkLabelRef (void)
{
int key;
labelHashEntry *entry;
if (!labelHash)
{
/* no labels at all: no problems ;-) */
return TRUE;
}
for (entry = (labelHashEntry *) hTabFirstItem (labelHash, &key);
entry;
entry = (labelHashEntry *) hTabNextItem (labelHash, &key))
{
/* In our path we passed a label,
but we didn't meet all references (jumps) to this label.
This means that the code jumps from outside into this path. */
if (entry->passedLabel &&
entry->jmpToCount != entry->refCount)
{
return FALSE;
}
/* In our path we jumped to (referenced) a label,
but we we didn't pass it.
This means that there's a code path into our path. */
if (!entry->passedLabel &&
entry->jmpToCount != 0)
{
return FALSE;
}
}
return TRUE;
}
/*-----------------------------------------------------------------*/
void
recomputeLiveRanges (eBBlock **ebbs, int count, bool emitWarnings)
{
symbol * sym;
int key;
/* clear all rlive bitVectors */
rliveClear (ebbs, count);
sym = hTabFirstItem (liveRanges, &key);
if (sym)
{
do {
sym->used = 0;
sym->liveFrom = 0;
sym->liveTo = 0;
freeBitVect (sym->clashes);
sym->clashes = NULL;
} while ( (sym = hTabNextItem (liveRanges, &key)));
}
/* do the LR computation again */
computeLiveRanges (ebbs, count, emitWarnings);
}
/*-----------------------------------------------------------------*/
static void
regTypeNum (void)
{
symbol *sym;
int k;
/* for each live range do */
for (sym = hTabFirstItem (liveRanges, &k); sym; sym = hTabNextItem (liveRanges, &k))
{
/* if used zero times then no registers needed. Exception: Variables larger than 4 bytes - these might need a spill location when they are return values */
if ((sym->liveTo - sym->liveFrom) == 0 && getSize (sym->type) <= 4)
continue;
D (D_ALLOC, ("regTypeNum: loop on sym %p\n", sym));
/* if the live range is a temporary */
if (sym->isitmp)
{
/* if the type is marked as a conditional */
if (sym->regType == REG_CND)
continue;
/* if used in return only then we don't
need registers */
if (sym->ruonly || sym->accuse)
{
if (IS_AGGREGATE (sym->type) || sym->isptr)
sym->type = aggrToPtr (sym->type, FALSE);
continue;
}
/* if not then we require registers */
D (D_ALLOC,
("regTypeNum: isagg %u nRegs %u type %p\n", IS_AGGREGATE (sym->type) || sym->isptr, sym->nRegs, sym->type));
sym->nRegs =
((IS_AGGREGATE (sym->type)
|| sym->isptr) ? getSize (sym->type = aggrToPtr (sym->type, FALSE)) : getSize (sym->type));
D (D_ALLOC, ("regTypeNum: setting nRegs of %s (%p) to %u\n", sym->name, sym, sym->nRegs));
D (D_ALLOC, ("regTypeNum: setup to assign regs sym %p\n", sym));
if (sym->nRegs > 8)
{
fprintf (stderr, "allocated more than 8 registers for type ");
printTypeChain (sym->type, stderr);
fprintf (stderr, "\n");
}
/* determine the type of register required */
/* Always general purpose */
sym->regType = REG_GPR;
}
else
{
/* for the first run we don't provide */
/* registers for true symbols we will */
/* see how things go */
D (D_ALLOC, ("regTypeNum: #2 setting num of %p to 0\n", sym));
sym->nRegs = 0;
}
}
}
