* src/pic/pcode.c (addpCode2pBlock,LinkFlow,pBlockRemoveUnusedLabels):

[fw/sdcc] / src / pic / pcode.c

diff --git a/src/pic/pcode.c b/src/pic/pcode.c
index 82290b9358a77bf45a4387cf2b987f98e7580583..cfbd14df942efa7e3bc4bdf1ed9c51625ae10632 100644 (file)
--- a/src/pic/pcode.c
+++ b/src/pic/pcode.c
@@ -2550,7 +2550,7 @@ void pCodeReadCodeTable(void)
 void addpCode2pBlock(pBlock *pb, pCode *pc)
 {
        
-       if(!pc)
+       if(!pb || !pc)
                return;
        
        if(!pb->pcHead) {
@@ -4315,6 +4315,8 @@ void LinkFlow(pBlock *pb)
        
        //fprintf(stderr,"linkflow \n");
        
+       if (!pb) return;
+       
        for( pcflow = findNextpCode(pb->pcHead, PC_FLOW); 
        pcflow != NULL;
        pcflow = findNextpCode(pcflow->next, PC_FLOW) ) {
@@ -4887,7 +4889,7 @@ void pBlockRemoveUnusedLabels(pBlock *pb)
 {
        pCode *pc; pCodeLabel *pcl;
        
-       if(!pb)
+       if(!pb || !pb->pcHead)
                return;
        
        for(pc = pb->pcHead; (pc=findNextInstruction(pc->next)) != NULL; ) {