MonetDB: default - Minor speed improvement for commonTerms

[mk]

Changeset: 5cc99738b1e0 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=5cc99738b1e0
Modified Files:
        monetdb5/optimizer/opt_support.mx
Branch: default
Log Message:

Minor speed improvement for commonTerms


diffs (31 lines):

diff --git a/monetdb5/optimizer/opt_support.mx 
b/monetdb5/optimizer/opt_support.mx
--- a/monetdb5/optimizer/opt_support.mx
+++ b/monetdb5/optimizer/opt_support.mx
@@ -584,7 +584,7 @@
 opt_export int isInvariant(MalBlkPtr mb, int pcf, int pcl, int varid);
 opt_export int isDependent(InstrPtr p, InstrPtr q);
 opt_export int safetyBarrier(InstrPtr p, InstrPtr q);
-opt_export int hasSameSignature(MalBlkPtr mb, InstrPtr p, InstrPtr q);
+opt_export int hasSameSignature(MalBlkPtr mb, InstrPtr p, InstrPtr q, int 
stop);
 opt_export int hasSameArguments(MalBlkPtr mb, InstrPtr p, InstrPtr q);
 opt_export int isUpdated(MalBlkPtr mb, int pc);
 opt_export int hasCommonResults(InstrPtr p, InstrPtr q);
@@ -876,7 +876,7 @@
        return msg;
 }
 
-int hasSameSignature(MalBlkPtr mb, InstrPtr p, InstrPtr q){   
+int hasSameSignature(MalBlkPtr mb, InstrPtr p, InstrPtr q, int stop){  
        int i;
 
        if ( getFunctionId(q) == getFunctionId(p) &&
@@ -884,7 +884,8 @@
                getFunctionId(q) != 0 &&
                getModuleId(q) != 0) {
                if( q->retc != p->retc || q->argc != p->argc) return FALSE;
-               for( i=0; i<p->argc; i++)
+               assert(stop <= p->argc);
+               for( i=0; i<stop; i++)
                        if (getArgType(mb,p,i) != getArgType(mb,q,i))
                                return FALSE;
                return TRUE;
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