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dump.c
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dump.c
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/*** Estimating cache miss ***/
/* MaxMiss(D)
MaxMiss(L)
*/
/* Collect the PS blks when entering loop lp */
void collectOuterPS(loop_t *lp) {
/* For each loop, collect PS.blk when entering the loop -> lpPersIn
* Collect PS.blk needed inside the loop -> lpReqPS
* if m in lpReqPS & m notin lpPersIn -> m need 1 cold miss each entering lp*/
int dbg = 0;
int i;
tcfg_node_t *head, *src;
tcfg_edge_t *in_e, *cur_e;
worklist_p setNode,lpNode,prvNode;
sblk_p setBlk,lpBlk;
mpa_acs lpIn;
loop_t *tmpLp, *parLp;
head = lp->head;//structured loop has only 1 head
lpIn= lpPersIn[lp->id];
if (dbg) fprintf(dbgMpa,"\nPers.blk when entering L%d",lp->id);
for (in_e = head->in; in_e; in_e = in_e->next_in) {
src = in_e->src;
if (bbi_lp(src)->id==lp->id) continue;
if (dbg) {
fprintf(dbgMpa,"\nEnter L%d from (%d,%d)",
lp->id,bbi_pid(src),bbi_bid(src));
}
for (i=0; i<MAX_CACHE_SET; i++) {
prvNode = NULL;
if (dbg) {
fprintf(dbgMpa,"\nS[%d] ",i);
printCacheSet(dbgMpa,src->acs_out[i]);
}
for (setNode = src->acs_out[i]; setNode; setNode = setNode->next) {
setBlk = (sblk_p)(setNode->data);
if (setBlk->age < PSEUDO) {//PS
addAfterNode(setBlk,&prvNode,&(lpIn[i]));
}
}
if (dbg) {
fprintf(dbgMpa,"\n->S[%d] ",i);printCacheSet(dbgMpa,lpIn[i]);
}
}
}
}
/*** Estimating cache miss due to access non-PS blks ***
* Scan each tcfg -> check each blk m of data reference D
* m not PS -> D all misses in conflict.scope of m
* m PS -> add m to lpReqPS, list of PS.blk requested in loop
*/
void estimateNodeAllMiss(tcfg_node_t* bbi) {
int dbg = 1;
dat_inst_t* d_inst;
insn_t* insn;
int n_inst,cs;
int num_PS, max_miss, max_exec, count2x;
worklist_p confScp, PS_set, miss_set, LPS_req;
worklist_p addrNode, setNode, csNode, prvReqNode, prvNode;
saddr_p addrBlk;
sblk_p setBlk;
loop_t *lp, *tmpLp, *parLp;
bbi->max_miss = 0;
bbi->dcache_delay = 0;
lp = bbi_lp(bbi);
max_exec = lp->exec;
join2acs(bbi->acs_in, bbi->acs_out);
if (dbg) {
fprintf(dbgMpa,"\n\nEst induced miss in bbi (%d,%d), L%d, ME: %d",
bbi_pid(bbi),bbi_bid(bbi),bbi_lp(bbi)->id, max_exec);
}
for (n_inst = 0; n_inst < bbi->bb->num_d_inst; n_inst++) {
d_inst = &(bbi->bb->d_instlist[n_inst]);
insn = d_inst->insn;
max_miss = 0; num_PS = 0;
prvNode = NULL; LPS_req = NULL;
if (dbg){miss_set = NULL; PS_set = NULL;}
d_inst->max_exec = max_exec;
totalDataExec +=max_exec;
#if 0
if (isStoreInst(isa[d_inst->inst->op_enum].name)) {
d_inst->max_miss = max_exec;
totalNPersMiss += d_inst->max_miss;
if (1) {
printf("\n\nDataRef: ");printInstr(d_inst->insn);
printf("maxPS: %d, maxMs: %d, maxExec: %d",
num_PS, d_inst->max_miss, max_exec);
fflush(stdout);
}
continue;
}
#endif
for (addrNode = d_inst->addr_set; addrNode; addrNode = addrNode->next) {
addrBlk = (saddr_p)(addrNode->data);
cs = GET_SET(addrBlk->blkAddr);
for (setNode=bbi->acs_out[cs]; setNode; setNode = setNode->next) {
setBlk = (sblk_p)(setNode->data);
if (addrBlk->blkAddr > setBlk->m->blkAddr) continue;
if (addrBlk->blkAddr == setBlk->m->blkAddr) {
if (compareMemScp(addrBlk,setBlk->m,lp)==0) {
if (setBlk->age==PSEUDO) {//non-PS
//max_miss+=estConfScope(setBlk->m,bbi->acs_out[cs],lp);
max_miss+=estScopeSize(setBlk->m->accScp,lp);
if (dbg) addToWorkList(&miss_set, addrBlk);
}
else {//PS
addAfterNode(addrBlk,&prvNode,&LPS_req);
num_PS++;
}
break;
}
else continue;
}
else {//prvBlk->blkAddr < addrBlk->blkAddr < setBlk->blkAddr
//not yet loaded to acs -> PS
addAfterNode(addrBlk,&prvNode, &LPS_req);
num_PS++;
break;
}
}
}
if (max_miss < max_exec) {
d_inst->max_miss = max_miss;
prvReqNode = NULL;
for (setNode = LPS_req; setNode; setNode=setNode->next) {
addrBlk = (saddr_p)(setNode->data);
addToIncSet(addrBlk,&prvReqNode,&(lpReqPS[lp->id]),lp);
if (dbg) addToWorkList(&PS_set, addrBlk);
}
while(!isEmpty(LPS_req)) removeOneFromWorkList(&LPS_req);
}
else {//just all miss
max_miss = max_exec;
d_inst->max_miss = max_miss;
}
bbi->max_miss += d_inst->max_miss;
totalNPersMiss += d_inst->max_miss;
if (dbg) {
fprintf(dbgMpa,"\n\nDataRef: ");
fprintInstr(dbgMpa,d_inst->insn);
fprintf(dbgMpa,"\n#PS: %d, max_miss: %d, max_exec: %d",
num_PS, d_inst->max_miss, max_exec);
fprintf(dbgMpa,"\nList of PS.req :");
printMemScpSet(dbgMpa,PS_set,0);
while(!isEmpty(PS_set)) removeOneFromWorkList(&PS_set);
fprintf(dbgMpa,"\nList of miss.blk :");
printMemScpSet(dbgMpa,miss_set,0);
while(!isEmpty(miss_set)) removeOneFromWorkList(&miss_set);
}
if (1) {
printf("\n\nDataRef: ");printInstr(d_inst->insn);
printf("maxPS: %d, maxMs: %d, maxExec: %d",
num_PS, d_inst->max_miss, max_exec);
fflush(stdout);
}
PS_update(bbi->acs_out,d_inst->addr_set,lp);
}
}
/*Estimate cold miss of PS blks each time entering a loop*/
/*Must visit lp in increasing id order, so inner loop is visited first*/
void estLpMissPS(loop_t *lp) {
int dbg = 0;
int i, s;
worklist_p inNode, reqNode, prvNode;
saddr_p reqBlk;
sblk_p inBlk;
worklist_p *prvInNode;
worklist_p prvReqNode;
loop_t *parLp;
int found, lpMiss;
int lpEntry;
int accessNum;
if (dbg) {
fprintf(dbgMpa,"\n\nEst cold miss in L%d",lp->id);
fprintf(dbgMpa,"\n LPS set:");
printMemScpSet(dbgMpa,lpReqPS[lp->id],0);
fprintf(dbgMpa,"\n lpPS_in set");
for (i=0; i<MAX_CACHE_SET; i++) {
fprintf(dbgMpa,"\n S[%d]: ",i);
printCacheSet(dbgMpa,lpPersIn[lp->id][i]);
}
fprintf(dbgMpa,"\n Miss est: ");
}
prvReqNode = NULL;
prvInNode = calloc(MAX_CACHE_SET,sizeof(worklist_p));
lp_coldms[lp->id] = 0;
for (reqNode = lpReqPS[lp->id]; reqNode; reqNode = reqNode->next) {
reqBlk = (saddr_p)(reqNode->data);
//fprintf(dbgMpa," R:%x ",reqBlk->blkAddr);
found = 0;
s = GET_SET(reqBlk->blkAddr);
prvNode = prvInNode[s];
if (prvNode) inNode = prvNode->next;
else inNode = lpPersIn[lp->id][s];
for ( ; inNode; inNode = inNode->next ) {
inBlk = (sblk_p)(inNode->data);
if (inBlk->m->blkAddr < reqBlk->blkAddr) {
prvNode = inNode;
}
else if (inBlk->m->blkAddr == reqBlk->blkAddr && lp->parent) {
if (compareMemScp(inBlk->m, reqBlk,lp)==0) {
//regBlk PS in lp InACS -> no cold miss needed
found = 1;
addToIncSet(reqBlk,&prvReqNode,&(lpReqPS[lp->parent->id]),lp);
if (dbg) {fprintf(dbgMpa," U:%x ",reqBlk->blkAddr);}
break;
}
else {
prvNode = inNode;
}
}
else {//prvBlk->blkAddr < reqBlk->blkAddr < inBlk->blkAddr
//regBlk not PS in lp InACS -> need 1 cold ms each enter
found = 1;
if (lp->parent) lpMiss=estScopeSize(reqBlk->accScp,lp->parent);
else lpMiss = 1;
lp_coldms[lp->id]+=lpMiss;
if (dbg) {fprintf(dbgMpa," C:%x:%d ",reqBlk->blkAddr, lpMiss);}
break;
}
}
if (!found) {
if (lp->parent) lpMiss = estScopeSize(reqBlk->accScp,lp->parent);
else lpMiss = 1;
lp_coldms[lp->id]+=lpMiss;
if (dbg) {fprintf(dbgMpa," C:%x:%d ",reqBlk->blkAddr,lpMiss);}
}
prvInNode[s] = prvNode;
}
free(prvInNode);
if (lp->parent) lpEntry = lp->parent->exec;
else lpEntry = 1;
//lp_coldms[lp->id] *=lpEntry;
//if (lp_coldms[lp->id]>lp_allms[lp->id]) //worse than all miss -> just AM
// lp_coldms[lp->id] = lp_allms[lp->id];
totalPersMiss += lp_coldms[lp->id];
if (dbg) {
fprintf(dbgMpa,"\nCold miss in L%d: %d",lp->id, lp_coldms[lp->id]);
}
if (1) {
printf("\nL%d, Cold miss %d, Entry %d, Exec %d",
lp->id,lp_coldms[lp->id],lpEntry, lp->exec);
fflush(stdout);
}
}
int estConfScope(memscp_p m, worklist_p acs, loop_t *curLp) {
int dbg = 0;
int totalConf, scpConf, maxLw, minUp;
worklist_p setNode, mAsNode, cAsNode;
accScp_p mAs,cAs;
mpablk_ip setBlk;
int lpOrder;
int confSize, PSSize;
fragmented_scope *fragScope;
totalConf = 0;
fragScope = calloc(num_tcfg_loops,sizeof(fragmented_scope));
for (setNode = acs; setNode; setNode=setNode->next) {
setBlk = (mpablk_ip) (setNode->data);
if (compareMemScp(setBlk->m, m, curLp)!=1) continue;
scpConf = 1;
if (dbg) {
fprintf(dbgMpa,"\nConfScope: ");
printMemScp(dbgMpa,m,1);
printMemScp(dbgMpa,setBlk->m,1);
fprintf(dbgMpa,"\n--> ");
}
mAsNode = m->accScp;
cAsNode = setBlk->m->accScp;
while (mAsNode && cAsNode) {
mAs = (accScp_p) (mAsNode->data);
cAs = (accScp_p) (cAsNode->data);
if (dbg && 0) {
fprintf(dbgMpa," (mL%d,cL%d)",
mAs->loop_id, cAs->loop_id);
}
lpOrder = cmpLpOrder(mAs->loop_id,cAs->loop_id);
if (lpOrder==1) {
mAsNode = mAsNode->next;
}
else if (lpOrder==-1) {
cAsNode = cAsNode->next;
}
else {//same loop
if (isPredecessor(curLp, loops[mAs->loop_id])) {
maxLw = max(mAs->lw, cAs->lw);
minUp = min(mAs->up, cAs->up);
if (dbg) {
fprintf(dbgMpa," (L%d,%d,%d) ",
mAs->loop_id, maxLw,minUp);
}
scpConf *= (minUp-maxLw)+1;
}
mAsNode = mAsNode->next; cAsNode = cAsNode->next;
}
}
if (dbg) {fprintf(dbgMpa," = %d",scpConf);}
totalConf += scpConf;
}
return totalConf;
}
void estUnknownMiss() {
#if 0
if (addrBlk->blkAddr == UNKNOWN_ADDR) {
//double miss for unknown
if (USE_DOUBLE_MISS) {
max_miss = 2*max_exec;
all_PS = 0;
d_inst->max_miss += max_miss;
count2x = 1;
if (dbg) {
fprintf(dbgMpa,"\nDataRef: ");
fprintInstr(dbgMpa,d_inst->insn);
fprintf(dbgMpa," DOUBLE MISS : %d",d_inst->max_miss);
fflush(dbgMpa);
}
}
else {
max_miss = max_exec;
all_PS = 0;
count2x = 0;
if (dbg) {
fprintf(dbgMpa,"\nDataRef: ");
fprintInstr(dbgMpa,d_inst->insn);
fprintf(dbgMpa," ALL MISS : %d",d_inst->max_miss);
fflush(dbgMpa);
}
}
continue;
}
#endif
}
void estimateInducedMiss(tcfg_node_t* bbi, int type) {
int dbg = 1;
dat_inst_t* d_inst;
insn_t* insn;
int n_inst,cs;
int num_PS, max_miss, max_exec, count2x;
int all_PS;
worklist_p confScp, PS_set, miss_set, PS_req;
worklist_p addrNode, setNode, csNode, prvReqNode, prvNode;
saddr_p addrBlk;
sblk_p setBlk;
loop_t *lp, *tmpLp, *parLp;
bbi->max_miss = 0;
bbi->dcache_delay = 0;
lp = bbi_lp(bbi);
max_exec = lp->exec;
join2acs(bbi->acs_in, bbi->acs_out);
if (dbg) {
fprintf(dbgMpa,"\n****\nEst non-PS miss in bbi (%d,%d), L%d, ME: %d",
bbi_pid(bbi),bbi_bid(bbi),bbi_lp(bbi)->id, max_exec);
}
for (n_inst = 0; n_inst < bbi->bb->num_d_inst; n_inst++) {
d_inst = &(bbi->bb->d_instlist[n_inst]);
insn = d_inst->insn;
num_PS = 0;
PS_set = NULL;
max_miss = 0;
miss_set = NULL;
d_inst->max_exec = max_exec;
totalDataExec +=max_exec;
PS_req = NULL;
prvNode = NULL;
all_PS = 1;
if (dbg) {
fprintf(dbgMpa,"\n\nDataRef: ");
fprintInstr(dbgMpa,d_inst->insn);
}
for (addrNode = d_inst->addr_set; addrNode; addrNode = addrNode->next) {
addrBlk = (saddr_p)(addrNode->data);
cs = GET_SET(addrBlk->blkAddr);
if (0) fprintf(dbgMpa," %x:",addrBlk->blkAddr);
for (setNode=bbi->acs_out[cs]; setNode; setNode = setNode->next) {
setBlk = (sblk_p)(setNode->data);
if (addrBlk->blkAddr > setBlk->m->blkAddr) continue;
if (addrBlk->blkAddr == setBlk->m->blkAddr) {
if (setBlk->age==PSEUDO) {//non-PS
//max_miss+=estConfScope(setBlk->m,bbi->acs_out[cs],lp);
if (0) fprintf(dbgMpa,"m",addrBlk->blkAddr);
all_PS = 0;
//max_miss+=estScopeSize(setBlk->m->accScp,lp);
//NOTE: need better impl. of conf set
if (dbg) addToWorkList(&miss_set, addrBlk);
break;
}
else {//PS
if (0) fprintf(dbgMpa,"p",addrBlk->blkAddr);
addAfterNode(addrBlk,&prvNode, &PS_req);
//addToIncSet(addrBlk,&prvReqNode,&(lpReqPS[lp->id]));
num_PS++;
break;
}
}
else {//prvBlk->blkAddr < addrBlk->blkAddr < setBlk->blkAddr
//not yet loaded to acs -> PS
//addToIncSet(addrBlk,&prvReqNode,&(lpReqPS[lp->id]));
if (1) fprintf(dbgMpa,"p",addrBlk->blkAddr);
addAfterNode(addrBlk,&prvNode, &PS_req);
num_PS++;
break;
}
}
}
//Classic classification
if (all_PS) {//all PSistence
//rough est of all possible miss caused by this access in a loop
parLp = lp;
while (parLp!=NULL) {
lp_allms[parLp->id]+=max_exec;
parLp = parLp->parent;
}
max_miss = 0;
prvReqNode = NULL;
for (setNode = PS_req; setNode; setNode = setNode->next) {
addrBlk = (saddr_p)(setNode->data);
addToIncSet(addrBlk, &prvReqNode, &(lpReqPS[lp->id]));
}
}
else {//non-PS -> all miss
max_miss = max_exec;
}
d_inst->max_miss = max_miss;
bbi->max_miss += d_inst->max_miss;
totalNPersMiss += d_inst->max_miss;
if (dbg) {
fprintf(dbgMpa,"\n#PS: %d, max_miss: %d, max_exec: %d",
num_PS, max_miss, max_exec);
fprintf(dbgMpa,"\nList of PS.req :");
printMemScpSet(dbgMpa,PS_req,0);
while(!isEmpty(PS_req)) removeOneFromWorkList(&PS_req);
fprintf(dbgMpa,"\nList of miss.blk :");
printMemScpSet(dbgMpa,miss_set,0);
while(!isEmpty(miss_set)) removeOneFromWorkList(&miss_set);
}
if (1) {
printf("\n\nDataRef: ");printInstr(d_inst->insn);
printf("#PS: %d, max_miss: %d, max_exec: %d",
num_PS, max_miss, max_exec);
fflush(stdout);
}
PS_update(bbi->acs_out,d_inst->addr_set,lp);
}
}
int Olap(sblk_p acsBlk, worklist_p acsSet, loop_t *lp) {
int dbg = 0; int flag;
int cnt = 0;
worklist_p acsNode;
sblk_p cnfBlk;
flag = 0;
for (acsNode=acsSet; acsNode; acsNode=acsNode->next) {
cnfBlk = (sblk_p) (acsNode->data);
if (compareMemScp(acsBlk->m, cnfBlk->m, lp)==1) {
cnt++;
if (dbg && !flag) {
fprintf(dbgMpa,"\nScpConflict with %x:",acsBlk->m->blkAddr);
flag = 1;
}
if (dbg)fprintf(dbgMpa," %x",cnfBlk->m->blkAddr,cnfBlk->age);
}
if (cnt == PSEUDO) return cnt;
}
return cnt;
}
/*merge function*/
void mergeInnerLoopAnalysis() {
#if 0
if (cmpLpOrder(hdLpId,blkLpId)==1) {/* blk is head of inner loop*/
if (dbg) {
fprintf(dbgMpa,"\nAnalyze inner L%d of L%d",blkLpId,hdLpId);
fflush(dbgMpa);
}
//analyze the inner loop
analyze_loop_ps(blk_lp);
//merge inner loop result with current loop
inner_tail = blk_lp->tail;
for (in_edge = cur->in; in_edge; in_edge = in_edge->next_in) {
if (bbi_lpId(in_edge->src)!=hdLpId) continue;
//in_edge->src is blk from curLoop to innerLoop
change = 0;
for (out_edge = inner_tail->out;
out_edge; out_edge = out_edge->next_out) {
tmp = out_edge->dst;
if (bbi_lpId(tmp)==hdLpId) {
if (dbg) {
fprintf(dbgMpa,"\nMerge L%d: (%d,%d)-> L%d -> (%d,%d)",
hdLpId, bbi_pid(in_edge->src),bbi_bid(in_edge->src),
blkLpId, bbi_pid(tmp),bbi_bid(tmp));
fflush(dbgMpa);
}
//out_edge->dst is blk from innerLoop back to curLoop
change = PS_merge(in_edge->src->acs_out,
tmp->acs_in,blk_lp);
if (visited[tmp->id]==0) {
change = 1; visited[tmp->id]=1;
}
if (change) {
// perform abs.int within the block
transform_bbi_dcache(tmp,loop,PERSISTENCE);
for (tmp_edge= tmp->out;
tmp_edge; tmp_edge = tmp_edge->next_out){
p_enqueue(&pQueue,tmp_edge->dst,tmp_edge->dst->id);
}
}
}
}
}
}
#endif
}
/*** update AS after data access ***/
void PS_update_Old(scp_acs acs_out, worklist_p addr_set, loop_t *curLoop) {
int dbg = 0;
int i;
worklist_p addrNode, confNode;
worklist_p acsNode, curNode, prvNode;
worklist_p renewList, prvRenew; /*list of mem.blk to renew */
worklist_p newList, prvNew; /*list of mem.blk to renew */
worklist_p agedList, prvAged; /*list of aged mem.blk*/
saddr_p addrBlk;
sblk_p tmpBlk, acsBlk,confBlk;
int s;
int flag, found, selfConf, change, added, maxAge;
renewList = NULL;
/*Impl.note: addr_set->addr & acs->addr is in increasing order
*addrNode->addr >= prvNode->addr
*check addrNode->addr \in acs -> only need to search from prvNode*/
if (dbg) {
//fprintf(dbgMpa,"\n\nPersistent update L%d",curLoop->id);
fprintf(dbgMpa,"\n\nAddrSet: ");printMemScpSet(dbgMpa,addr_set,1);
for (i=0; i<MAX_CACHE_SET; i++) {
fprintf(dbgMpa,"\nS[%d] ",i);printCacheSet(dbgMpa,acs_out[i]);
}
}
//search through acs, renew cache age if possible, add new cache blk
for (i=0;i<MAX_CACHE_SET;i++) prvAcsNode[i]=NULL;
for (addrNode = addr_set; addrNode; addrNode=addrNode->next) {
addrBlk = (saddr_p)(addrNode->data);
if (addrBlk->blkAddr==UNKNOWN_ADDR) break;
s = GET_SET(addrBlk->blkAddr);
prvNode = prvAcsNode[s];
if (prvNode == NULL) acsNode = acs_out[s];
else acsNode = prvNode->next;
found = 0;
while (acsNode) {
acsBlk = (sblk_p)(acsNode->data);
//fprintf(dbgMpa,"\n%x:%x == %x:%x ? ",
// acsBlk->m->blkAddr,acsBlk->m->instAddr,
// addrBlk->blkAddr,addrBlk->instAddr);
if (acsBlk->m->blkAddr == addrBlk->blkAddr
&& compareMemScp(acsBlk->m,addrBlk,curLoop)==0) {
if (addrBlk->flag==1) acsBlk->age = 0;/*renew age*/
found = 1;
break;
}
else if (acsBlk->m->blkAddr > addrBlk->blkAddr ) {
//prvBlk->blkAddr < addrBlk->blkAddr < acsBlk->blkAddr
//suitable place to insert
break;
}
else {
// acsBlk->m->blkAddr < addrBlk->blkAddr
// blkAddr==addrBlk && acsBlk->m->instAddr!=addr->instAddr
//keep moving up to search for mem.blk or correct place to add
prvNode = acsNode;
acsNode = acsNode->next;
}
}
if (!found) {
//fprintf(dbgMpa," F3");
tmpBlk = malloc(sizeof(sblk_s));
tmpBlk->m = addrBlk;
tmpBlk->age = 0;
tmpBlk->flag = addrBlk->flag;
addAfterNode(tmpBlk,&prvNode, &(acs_out[s]));
}
prvAcsNode[s] = prvNode;
}
//age existing memory block in acs, age only 1 each data access
agedList=NULL;
for (addrNode = addr_set; addrNode; addrNode=addrNode->next) {
addrBlk = (saddr_p)(addrNode->data);
if (addrBlk->blkAddr==UNKNOWN_ADDR) {
updateUnknownAddr();
break;
}
s = GET_SET(addrBlk->blkAddr);
for (acsNode=acs_out[s]; acsNode; acsNode=acsNode->next) {
acsBlk = (sblk_p)(acsNode->data);
if (!acsBlk->wasAged && acsBlk->age<PSEUDO
&& acsBlk->age < maxConflict(acsBlk, acs_out[s], curLoop)
&& compareMemScp(acsBlk->m,addrBlk, curLoop)==1) {
acsBlk->wasAged = 1;
acsBlk->age++;
addToWorkList(&agedList, acsBlk);
}
}
}
//reset wasAged to 0 for next access update
while (!isEmpty(agedList)) {
acsBlk = removeOneFromWorkList(&agedList);
acsBlk->wasAged = 0;
}
if (dbg) {
for (i=0; i<MAX_CACHE_SET; i++) {
fprintf(dbgMpa,"\n-->S[%d] ",i);printCacheSet(dbgMpa,acs_out[i]);
}
}
}
/*Update cache state if accessed addr is unknown*/
void updateUnknownAddr() {
#if 0
if (addrBlk->blkAddr==UNKNOWN_ADDR) {
if (USE_DOUBLE_MISS) {
//instead of aging the whole cache set, consider double miss
return;
}
else {
for (i=0; i<MAX_CACHE_SET; i++) {
prvNode = NULL;
for (acsNode = acs_out[i]; acsNode; acsNode=acsNode->next){
acsBlk = (sblk_p)(acsNode->data);
acsBlk->age = min(acsBlk->age+1, PSEUDO);
prvNode = acsNode;
}
if (prvNode) {
acsBlk = (sblk_p)(prvNode->data);
if (acsBlk->m->blkAddr != UNKNOWN_ADDR) {
tmpBlk = malloc(sizeof(mpablk_i));
tmpBlk->m = addrBlk;
//tmpBlk->m = createMemScp(addrBlk->blkAddr,
// addrBlk->flag, addrBlk->accScp);
tmpBlk->age = PSEUDO;
tmpBlk->flag = addrBlk->flag;
addAfterNode(tmpBlk,&prvNode, &(acs_out[i]));
}
}
}
return;
}
}
#endif
}
int cmp_mpaInst(sblk_p src, sblk_p dst) {
if (src->age != dst->age) return 1;
if (src->m->blkAddr != dst->m->blkAddr) return 2;
return 0;
}
/*** Join function: join cache state from multiple incoming edges ***/
int PS_join_Old(scp_acs src, scp_acs dst ) {
int dbg = 0;
int i;
worklist_p sNode, dNode, prvNode, tmpNode;
sblk_p sBlk, dBlk, tmpBlk;
int change;
if (dbg) fprintf(dbgMpa,"\nPersistent join");
change = 0;
for (i=0; i<MAX_CACHE_SET; i++) {
if (dbg) {
fprintf(dbgMpa,"\nS[%d]: ",i);printCacheSet(dbgMpa,src[i]);
fprintf(dbgMpa,"\nD[%d]: ",i);printCacheSet(dbgMpa,dst[i]);
}
sNode = src[i];
dNode = dst[i]; prvNode = NULL;
/*blks are listed in increasing order*/
/*merge src -> dst must also in increasing order*/
while (sNode) {
sBlk = (sblk_p)(sNode->data);
if (dNode) {
dBlk = (sblk_p)(dNode->data);
if (sBlk->m->blkAddr == dBlk->m->blkAddr
&& sBlk->m->instAddr==dBlk->m->instAddr) {
if (sBlk->age > dBlk->age) {
change = 1;
dBlk->age = sBlk->age;
}
if (sBlk->flag==0 && dBlk->flag!=0) {
change = 1;
dBlk->flag = 0;
}
prvNode = dNode;
sNode = sNode->next;
dNode = dNode->next;
}
else if (sBlk->m->blkAddr > dBlk->m->blkAddr) {
//ignore, cannot add new sBlk here to keep intergrity
prvNode = dNode;
dNode = dNode->next;
}
else {
//sBlk->m->blkAddr < dBlk->m->blkAddr
// || sBlk->m->addrInst != dBlk->m->addrInst
tmpBlk = malloc(sizeof(mpablk_i));
copy_mpaInst(sBlk, tmpBlk);
addAfterNode(tmpBlk, &prvNode, &(dst[i]));
sNode = sNode->next;
change = 1;
}
}
else {//dNode = NULL -> adding sNode
tmpBlk = malloc(sizeof(mpablk_i));
copy_mpaInst(sBlk, tmpBlk);
addAfterNode(tmpBlk,&prvNode,&(dst[i]));
sNode = sNode->next;
change = 1;
}
}//end while, sNode = NULL;
if (dbg && change) {
fprintf(dbgMpa,"\n--> D[%d]: ",i);printCacheSet(dbgMpa,dst[i]);
}
else if (dbg) {//!change
fprintf(dbgMpa,"\n--> ");
}
}//end for
return change;
}
#if 0
char* expandInVar( reg_t *regList, char* deritree) {
int dbg = 0;
char *str, *tmpStr;
char tmp[256], regVal[256], token[256];
int pos, regNum, curReg;
int cnt,flag;//count token
biv_p biVar;
str = (char*)calloc(256,sizeof(char));
pos = 0;
cnt = 0;
if (dbg) {fprintf(dbgAddr,"\nExpand deri:%s ",deritree);fflush(dbgAddr);}
str[0]='\0';
while (getNextElem(deritree,&pos,token)!=0) {
//fprintf(dbgAddr,"\n Token: %s",token);
if (token[0]=='$') {//some induction vars
regNum = findReg(token);
if (dbg) {
fprintf(dbgAddr,"\nExpand inReg: ");
printRegVal(dbgAddr,regList[regNum]);
}
if (regNum<0 || regList[regNum].inVar==NULL) {
printf("\nInvalid Reg or not BIV: deri:%s tk:%s",deritree,token);
fflush(stdout);
exit(1);
}
/*Add init*/
biVar = (biv_p)regList[regNum].inVar;
tmpStr = expandInVar(regList,biVar->init);
if (tmpStr==NULL) {
printf("\nNULL expandInVar(%s)",biVar->init);fflush(stdout);
exit(1);
}
strcat(str,"(");
strcat(str,tmpStr);
free(tmpStr);
/*Mark reg name*/
strcat(str,"+");strcat(str,regList[regNum].name);
strcat(str,")");
}
else {
strcat(str,token);
}
cnt++;
}
if (dbg) {fprintf(dbgAddr,"\nExpanded reg:%s ",str);fflush(dbgAddr);}
return str;
}
#endif
#if 0
/*check if bivA belong to loop lp*/ //OBSOLETE???
biv_p findLpBIV(loop_t *lp, biv_p bivA) {
worklist_p item;
biv_p tmpBiv;
if (lp==NULL) return NULL;
for (item = (worklist_p)(lp->biv_list); item; item = item->next) {
tmpBiv = (biv_p)(item->data);
if (regEq(tmpBiv,biv)) return biv;
}
return NULL;
}
int analyze_regular_access_old(dat_inst_t *d_inst, inf_node_t* ib) {
int dbg = 0, *visited;
int i,j,k,pos, minCoef;
char str[DERI_LEN],des[DERI_LEN];
char *tmpStr;
int inc; //affine eq is always incretsing
int monotone; //affine eq is monotone during enum, always inc or dec
int inorder; //affine eq follows loop heirarchy order
poly_expr_t *addrEq, *maxEq, *tmpEq, *curEq, *prvEq;
poly_expr_t bufEq;
accScp_s bufScp;
loop_t *loop, *curLp, *outerMost, *tmpLp;
accScp_p curScp, tmpScp, nextScp;
worklist_p curTSNode, orgTSNode, tmpTSNode, maxTSNode;
worklist_p addrNode, prvNode;
biv_p inVar;
visited = calloc(num_tcfg_loops,sizeof(int));
i=0;
strcpy(str,d_inst->deritree);
/*** convert deritree into an affine function ***/
/*expand induction var*/
pos = 0;str[0]='\0';
tmpStr = expandInVar(ib->regListIn,d_inst->deritree);
if (tmpStr) {sprintf(str,"%s%",tmpStr);free(tmpStr);}
else {fprintf(dbgAddr,"\nNULL deritree %s",d_inst->deritree);}
if (dbg) {
fprintf(dbgAddr,"\nExpanded infix str: %s",str);
fflush(dbgAddr);
}
/*After expanding induction var, some regular access turn out to be
*half regular access, because btse address is unknown*/
if (strchr(str,'T')!=NULL) {
analyze_half_regular_access(d_inst,ib,str);
return;
}
/*convert str to prefix format*/
convert2Prefix(str,des);
pos = 0;
if (0) fprintf(dbgAddr,"\nCompute Prefix");
addrEq = computePrefix(str,&pos);
/*** enumerate regular equation ***/
if (dbg) {
fprintf(dbgAddr, "\n Affine array expr: ");
printExpression(dbgAddr,addrEq);fflush(dbgAddr);
}
/*find corresponding loop for each V_i*/
/*the order of access scope must corresponding to other of $i appear in Eq*/
orgTSNode = NULL; curTSNode = NULL;
prvEq = NULL;
for (curEq = addrEq; curEq; curEq = curEq->next) {
if (curEq->regName[0]=='1') { /*constant*/
/*add dummy access scope*/
tmpScp = malloc(sizeof(accScp_s));
tmpScp->loop_id = -1;
tmpScp->lw = 0; tmpScp->up = 0; tmpScp->flag = 0;
addAfterNode(tmpScp,&curTSNode,&(orgTSNode));
}
else if (curEq->regName[0]=='T') { /*unpredictable value*/
//just do nothing
}
else if (curEq->regName[0]=='$') { /*loop induction var*/
int found;
linkedlist_p item;
found = 0;
loop = getIbLoop(ib);
//ib->loop_id is different from loop->id of the loop ib is in
while (found==0 && loop) {
if (dbg & 0) {
fprintf(dbgAddr,"\n BIV list of L%d ",loop->id);
for (item = loop->biv_list; item; item = item->next) {
biv_p biv = (biv_p)(item->data);
fprintf(dbgAddr," (%s,%s,%d) ",
biv->regName,biv->init,biv->stride);
}
fflush(dbgAddr);
}
inVar = findLpBIV(loop,curEq->regName);
if (inVar==NULL) loop = loop->parent;
else found=1;
}
if (found) {
curEq->coef *= inVar->stride;
if (dbg & 1) {
fprintf(dbgAddr,"\n%d:%s is in L%d, lb %d", curEq->coef,
curEq->regName, loop->id, loop->bound);
fprintf(dbgAddr,", (%s,%s,%d) ",
inVar->regName,inVar->init,inVar->stride);
fflush(dbgAddr);
}
/*sometimes, AddrExpr consists of several induction vars
*from the same loop -> add these induction var together*/
found = 0;
#if 1
tmpEq = addrEq;
for (tmpTSNode=orgTSNode;tmpTSNode;tmpTSNode=tmpTSNode->next) {
tmpScp = (accScp_p)(tmpTSNode->data);
if (tmpScp->loop_id == loop->id) {
found = 1;
break;
}
tmpEq = tmpEq->next;
}
#endif
if (!found) {
tmpScp = malloc(sizeof(accScp_s));
tmpScp->loop_id = loop->id;
visited[loop->id] = 1;
tmpScp->lw = 0; tmpScp->up = 0; tmpScp->flag = 0;
addAfterNode(tmpScp,&curTSNode,&(orgTSNode));
}
else {
tmpEq->coef += curEq->coef*inVar->stride;
prvEq->next = curEq->next;//delete curEq,NOTE: mem.leak
}
}
else {
printf("\nCannot find loop for reg: %s",curEq->regName);
fflush(stdout);exit(1);
}
}
else {
printf("\nError: bad regName: %s",curEq->regName);fflush(stdout);
exit(1);
}
prvEq = curEq;
}
if (dbg & 0) {
fprintf(dbgAddr,"\nAddress expression ");
printExpression(dbgAddr,addrEq);
fprintf(dbgAddr,"\nAccess scope ");
printAccScpSet(dbgAddr,orgTSNode);
}
/*rearrange eq into decretsing coef, to gen incretsing addr while enum*/
tmpEq=addrEq; tmpTSNode = orgTSNode;
while (tmpEq) {
maxEq = tmpEq;
maxTSNode = tmpTSNode;
curTSNode = tmpTSNode->next;
for (curEq = tmpEq->next ; curEq; curEq = curEq->next) {
if (dbg && 0) {
tmpScp = (accScp_p)(curTSNode->data);
fprintf(dbgAddr,"\n %d:%s , L%d ",
curEq->coef,curEq->regName, tmpScp->loop_id);
fflush(dbgAddr);
}
if ( abs(curEq->coef) > abs(maxEq->coef) ) {
maxEq = curEq;
maxTSNode = curTSNode;
}
curTSNode = curTSNode->next;
}
if (0) fprintf(dbgAddr,"\nmaxEq: %x:%s",maxEq->coef, maxEq->regName);
bufEq.coef = maxEq->coef;
strcpy(bufEq.regName,maxEq->regName);
maxEq->coef = tmpEq->coef;
strcpy(maxEq->regName, tmpEq->regName);
tmpEq->coef = bufEq.coef;
strcpy(tmpEq->regName,bufEq.regName);
tmpScp = (accScp_p)(maxTSNode->data);
curScp = (accScp_p)(tmpTSNode->data);
copy_accScp(tmpScp,&bufScp);
copy_accScp(curScp,tmpScp);
copy_accScp(&bufScp,curScp);
tmpEq = tmpEq->next;