#include "common.h" // Include everything in the SDCC src directory
#include "newalloc.h"
-
-
+//#define PCODE_DEBUG
#include "pcode.h"
#include "pcodeflow.h"
#include "ralloc.h"
if(!pcwb)
return;
- pcwb->nvars++;
+ pcwb->nvars+=2;
pcwb->nops = pcwb->nvars;
pcwb->vars = Safe_calloc(pcwb->nvars, sizeof(char *));
pcwb->wildpCodeOps = Safe_calloc(pcwb->nvars, sizeof(pCodeOp *));
- pcwb->nwildpCodes++;
+ pcwb->nwildpCodes+=2;
pcwb->wildpCodes = Safe_calloc(pcwb->nwildpCodes, sizeof(pCode *));
}
pcps = Safe_calloc(1,sizeof(pCodePeepSnippets));
peepSnippets = DLL_append((_DLL*)peepSnippets,(_DLL*)pcps);
-/*
- curPeep = pcps->peep = Safe_calloc(1,sizeof(pCodePeep));
-
- curPeep->vars = NULL;
- curPeep->wildpCodes = NULL; curPeep->wildpCodeOps = NULL;
- curPeep->postFalseCond = PCC_NONE;
- curPeep->postTrueCond = PCC_NONE;
-
-
- curPeep->target = curBlock = newpCodeChain(NULL, 'W', NULL);
- sMaxWildVar = 0;
- sMaxWildMnem = 0;
-*/
currentRule = pcps->peep = Safe_calloc(1,sizeof(pCodePeep));
initpCodePeep(currentRule);
//DFPRINTF((stderr,"\nReplaced by:\n"));
- //curPeep->replace = curBlock = newpCodeChain(NULL, 'W', NULL);
-
/* Convert the replace block */
peepRuleBlock2pCodeBlock(pr->replace, ¤tRule->replace);
//printpBlock(stderr, curBlock);
//DFPRINTF((stderr,"replace with labels merged:\n"));
- //pBlockMergeLabels(curBlock);
+
pBlockMergeLabels(currentRule->replace.pb);
//printpBlock(stderr, currentRule->replace.pb);
/* The rule has been converted to pCode. Now allocate
* space for the wildcards */
-/*
- ++sMaxWildVar;
- curPeep->nvars = sMaxWildVar;
- curPeep->vars = Safe_calloc(sMaxWildVar, sizeof(char *));
-
- curPeep->nops = sMaxWildVar;
- curPeep->wildpCodeOps = Safe_calloc(sMaxWildVar, sizeof(pCodeOp *));
-
- curPeep->nwildpCodes = ++sMaxWildMnem;
- curPeep->wildpCodes = Safe_calloc(sMaxWildMnem, sizeof(char *));
-*/
postinit_pCodeWildBlock(¤tRule->target);
+ postinit_pCodeWildBlock(¤tRule->replace);
//return; // debug ... don't want to go through all the rules yet
}
/* Check for a label associated with this wild pCode */
// If the wild card has a label, make sure the source code does too.
if(PCI(pcd)->label) {
- pCode *pcl;
+ pCode *pcl = PCI(pcd)->label->pc;
+
+#ifdef PCODE_DEBUG
+ int li = -PCL(pcl)->key;
+
+ if(peepBlock->target.vars[li] == NULL) {
+ if(PCI(pcs)->label) {
+ DFPRINTF((stderr,"first time for a label: %d %s\n",li,PCL(PCI(pcs)->label->pc)->label));
+ }
+ } else {
+ // DFPRINTF((stderr,"label id = %d \n",PCL(PCI(pcd)->label->pc)->key));
+ DFPRINTF((stderr," label id: %d %s\n",li,peepBlock->target.vars[li]));
+ if(PCI(pcs)->label) {
+ DFPRINTF((stderr," src %s\n",PCL(PCI(pcs)->label->pc)->label));
+ }
+ }
+#endif
+
if(!PCI(pcs)->label)
return 0;
- pcl = PCI(pcd)->label->pc;
-
labindex = -PCL(pcl)->key;
- //DFPRINTF((stderr,"label id = %d (labindex = %d)\n",PCL(pcl)->key,labindex));
if(peepBlock->target.vars[labindex] == NULL) {
// First time to encounter this label
peepBlock->target.vars[labindex] = PCL(PCI(pcs)->label->pc)->label;
- //DFPRINTF((stderr,"first time for a label: %d %s\n",labindex, peepBlock->vars[labindex]));
+ DFPRINTF((stderr,"first time for a label: %d %s\n",labindex,PCL(PCI(pcs)->label->pc)->label));
+
} else {
if(strcmp(peepBlock->target.vars[labindex],PCL(PCI(pcs)->label->pc)->label) != 0) {
- // DFPRINTF((stderr,"labels don't match\n"));
+ DFPRINTF((stderr,"labels don't match dest %s != src %s\n",peepBlock->target.vars[labindex],PCL(PCI(pcs)->label->pc)->label));
return 0;
}
- //DFPRINTF((stderr,"matched a label\n"));
+ DFPRINTF((stderr,"matched a label %d %s -hey\n",labindex,peepBlock->target.vars[labindex]));
}
} else {
- // DFPRINTF((stderr,"destination doesn't have a label\n"));
+ //DFPRINTF((stderr,"destination doesn't have a label\n"));
if(PCI(pcs)->label)
return 0;
+
+ //DFPRINTF((stderr,"neither src nor dest have labels\n"));
+
}
return 1;
/* one-for-one match. Here the source and destination opcodes
* are not wild. However, there may be a label or a wild operand */
+ if(pcs) {
+ if(PCI(pcs)->label) {
+ DFPRINTF((stderr,"Match line source label: %s\n",PCL(PCI(pcs)->label->pc)->label));
+ }
+ }
+
if(pcs->type == pcd->type) {
if(pcs->type == PC_OPCODE) {
if(PCI(pcs)->op != PCI(pcd)->op)
return 0;
- /*
+#ifdef PCODE_DEBUG
DFPRINTF((stderr,"%s comparing\n",__FUNCTION__));
pcs->print(stderr,pcs);
pcd->print(stderr,pcd);
- */
+#endif
if(!pCodePeepMatchLabels(peepBlock, pcs, pcd))
return 0;
if(peepBlock->target.vars[index])
return (strcmp(peepBlock->target.vars[index],n) == 0);
else {
- // DFPRINTF((stderr,"first time for a variable: %d, %s\n",index,n));
+ DFPRINTF((stderr,"first time for a variable: %d, %s\n",index,n));
peepBlock->target.vars[index] = n;
return 1;
}
index = PCW(pcd)->id;
-
- // DFPRINTF((stderr,"%s comparing wild cards\n",__FUNCTION__));
- //pcs->print(stderr,pcs);
- //pcd->print(stderr,pcd);
-
+#ifdef PCODE_DEBUG
+ DFPRINTF((stderr,"%s comparing wild cards\n",__FUNCTION__));
+ pcs->print(stderr,pcs);
+ pcd->print(stderr,pcd);
+#endif
peepBlock->target.wildpCodes[PCW(pcd)->id] = pcs;
- if(!pCodePeepMatchLabels(peepBlock, pcs, pcd))
+ if(!pCodePeepMatchLabels(peepBlock, pcs, pcd)) {
+ DFPRINTF((stderr," Failing because labels don't match\n"));
return 0;
+ }
if(PCW(pcd)->mustBeBitSkipInst & !(PCI(pcs)->isBitInst && PCI(pcs)->isSkip)) {
// doesn't match because the wild pcode must be a bit skip
- //fprintf(stderr," Failing match because bit skip is req:\n");
+ DFPRINTF((stderr," Failing match because bit skip is req\n"));
//pcd->print(stderr,pcd);
//pcs->print(stderr,pcs);
return 0;
if(PCW(pcd)->mustNotBeBitSkipInst & (PCI(pcs)->isBitInst && PCI(pcs)->isSkip)) {
// doesn't match because the wild pcode must *not* be a bit skip
- //fprintf(stderr," Failing match because don't want skip :\n");
+ DFPRINTF((stderr," Failing match because shouldn't be bit skip\n"));
//pcd->print(stderr,pcd);
//pcs->print(stderr,pcs);
return 0;
PCOW(PCI(pcd)->pcop)->matched = PCI(pcs)->pcop;
if(peepBlock->target.vars[index]) {
int i = (strcmp(peepBlock->target.vars[index],PCI(pcs)->pcop->name) == 0);
- /*
+#ifdef PCODE_DEBUG
+
if(i)
DFPRINTF((stderr," (matched)\n"));
else {
DFPRINTF((stderr," (no match: wild card operand mismatch\n"));
- DFPRINTF((stderr," peepblock= %s, pcodeop= %s\n"),
- peepBlock->vars[index],
- PCI(pcs)->pcop->name);
+ DFPRINTF((stderr," peepblock= %s, pcodeop= %s\n",
+ peepBlock->target.vars[index],
+ PCI(pcs)->pcop->name));
}
- */
+#endif
return i;
} else {
+ DFPRINTF((stderr," (matched %s\n",PCI(pcs)->pcop->name));
peepBlock->target.vars[index] = PCI(pcs)->pcop->name;
return 1;
}
if(!pcp)
return;
- for(i=0;i<pcp->target.nvars; i++) {
+ DFPRINTF((stderr," Clearing peep rule vars\n"));
+ DFPRINTF((stderr," %d %d %d %d %d %d\n",
+ pcp->target.nvars,pcp->target.nops,pcp->target.nwildpCodes,
+ pcp->replace.nvars,pcp->replace.nops,pcp->replace.nwildpCodes));
+
+ for(i=0;i<pcp->target.nvars; i++)
pcp->target.vars[i] = NULL;
+ for(i=0;i<pcp->target.nops; i++)
pcp->target.wildpCodeOps[i] = NULL;
- }
+ for(i=0;i<pcp->target.nwildpCodes; i++)
+ pcp->target.wildpCodes[i] = NULL;
+
+ for(i=0;i<pcp->replace.nvars; i++)
+ pcp->replace.vars[i] = NULL;
+ for(i=0;i<pcp->replace.nops; i++)
+ pcp->replace.wildpCodeOps[i] = NULL;
+ for(i=0;i<pcp->replace.nwildpCodes; i++)
+ pcp->replace.wildpCodes[i] = NULL;
+
+
+
}
/*-----------------------------------------------------------------*/
{
pCodePeep *peepBlock;
pCode *pct, *pcin;
+ pCodeCSource *pc_cline=NULL;
_DLL *peeprules;
int matched;
}
pCodePeepClrVars(peepBlock);
-
+/*
pcin = pc;
if(IS_PCCOMMENT(pcin))
pc = pcin = findNextInstruction(pcin->next);
+*/
+ pcin = pc = findNextInstruction(pc);
pct = peepBlock->target.pb->pcHead;
+#ifdef PCODE_DEBUG
+ {
+ pCode *pcr = peepBlock->replace.pb->pcHead;
+ if(pcr) pct->print(stderr,pcr);
+ }
+#endif
matched = 0;
while(pct && pcin) {
DFPRINTF((stderr," partial match... no more code\n"));
matched = 0;
}
- if(!pct)
+ if(!pct) {
DFPRINTF((stderr," end of rule\n"));
+ }
}
if(matched) {
printpCodeString(stderr,peepBlock->target.pb->pcHead,10);
DFPRINTF((stderr,"first thing matched\n"));
pc->print(stderr,pc);
-#endif
if(pcin) {
DFPRINTF((stderr,"last thing matched\n"));
pcin->print(stderr,pcin);
}
+#endif
+
/* Unlink the original code */
pcprev = pc->prev;
if(pcin)
pcin->prev = pc->prev;
+
+
{
/* DEBUG */
/* Converted the deleted pCodes into comments */
char buf[256];
+ pCodeCSource *pc_cline2=NULL;
buf[0] = ';';
buf[1] = '#';
while(pc && pc!=pcin) {
+
+ if(pc->type == PC_OPCODE && PCI(pc)->cline) {
+ if(pc_cline) {
+ pc_cline2->pc.next = PCODE(PCI(pc)->cline);
+ pc_cline2 = PCCS(pc_cline2->pc.next);
+ } else {
+ pc_cline = pc_cline2 = PCI(pc)->cline;
+ pc_cline->pc.seq = pc->seq;
+ }
+ }
+
pCode2str(&buf[2], 254, pc);
pCodeInsertAfter(pcprev, newpCodeCharP(buf));
pcprev = pcprev->next;
pc = pc->next;
+
}
+ if(pc_cline2)
+ pc_cline2->pc.next = NULL;
}
if(pcin)
pcr = peepBlock->replace.pb->pcHead; // This is the replacement code
while (pcr) {
pCodeOp *pcop=NULL;
+
/* If the replace pcode is an instruction with an operand, */
/* then duplicate the operand (and expand wild cards in the process). */
if(pcr->type == PC_OPCODE) {
pc = pc->next;
- //if(pc)
- // pc->print(stderr,pc);
+#ifdef PCODE_DEBUG
+ DFPRINTF((stderr," NEW Code:"));
+ if(pc) pc->print(stderr,pc);
+#endif
pcr = pcr->next;
}
+ /* We have just replaced the inefficient code with the rule.
+ * Now, we need to re-add the C-source symbols if there are any */
+ pc = pcprev;
+ while(pc_cline ) {
+
+ pc = findNextInstruction(pc->next);
+ PCI(pc)->cline = pc_cline;
+ pc_cline = PCCS(pc_cline->pc.next);
+
+ }
+
return 1;
}
next_rule:
peeprules = peeprules->next;
}
+ DFPRINTF((stderr," no rule matched\n"));
return 0;
}
projects / fw / sdcc / blobdiff