* generic/tclListObj.c (Tcl_ListObjReplace): use memmove() instead

	of manual copy loop to shift list elements. Decreases time spent in
	Tcl_ListObjReplace() from 5.2% to 1.7% of overall runtime of
	tclbench on a ppc 7455 (i.e. 200% speed increase). [Patch 1064243]

	* generic/tclHash.c: hoisted some constant pointer dereferences out
	of loops to eliminate redundant loads that the gcc optimizer didn't
	deal with. Decreases time spend in Tcl_FindHashEntry() by 10% over a
	full run of the tcl testuite on a ppc 7455. [Patch 1064243]


FossilOrigin-Name: 30ac98366b1320896fc3fa95e5baf5bfa097a366

1 files changed, 8 insertions, 5 deletions

diff --git a/generic/tclHash.c b/generic/tclHash.c
index af2805a..14de98a 100644
--- a/generic/tclHash.c
+++ b/generic/tclHash.c
@@ -10,7 +10,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclHash.c,v 1.21 2004/10/06 13:43:53 dkf Exp $
+ * RCS: @(#) $Id: tclHash.c,v 1.22 2004/11/11 01:17:50 das Exp $
  */
 
 #include "tclInt.h"
@@ -310,6 +310,7 @@ Tcl_FindHashEntry(tablePtr, key)
      */
 
     if (typePtr->compareKeysProc) {
+	Tcl_CompareHashKeysProc *compareKeysProc = typePtr->compareKeysProc;
 	for (hPtr = tablePtr->buckets[index]; hPtr != NULL;
 	        hPtr = hPtr->nextPtr) {
 #if TCL_HASH_KEY_STORE_HASH
@@ -317,7 +318,7 @@ Tcl_FindHashEntry(tablePtr, key)
 		continue;
 	    }
 #endif
-	    if (typePtr->compareKeysProc ((VOID *) key, hPtr)) {
+	    if (compareKeysProc ((VOID *) key, hPtr)) {
 		return hPtr;
 	    }
 	}
@@ -408,6 +409,7 @@ Tcl_CreateHashEntry(tablePtr, key, newPtr)
      */
 
     if (typePtr->compareKeysProc) {
+	Tcl_CompareHashKeysProc *compareKeysProc = typePtr->compareKeysProc;
 	for (hPtr = tablePtr->buckets[index]; hPtr != NULL;
 	        hPtr = hPtr->nextPtr) {
 #if TCL_HASH_KEY_STORE_HASH
@@ -415,7 +417,7 @@ Tcl_CreateHashEntry(tablePtr, key, newPtr)
 		continue;
 	    }
 #endif
-	    if (typePtr->compareKeysProc ((VOID *) key, hPtr)) {
+	    if (compareKeysProc ((VOID *) key, hPtr)) {
 		*newPtr = 0;
 		return hPtr;
 	    }
@@ -701,13 +703,14 @@ Tcl_NextHashEntry(searchPtr)
 					 * Tcl_FirstHashEntry. */
 {
     Tcl_HashEntry *hPtr;
+    Tcl_HashTable *tablePtr = searchPtr->tablePtr;
 
     while (searchPtr->nextEntryPtr == NULL) {
-	if (searchPtr->nextIndex >= searchPtr->tablePtr->numBuckets) {
+	if (searchPtr->nextIndex >= tablePtr->numBuckets) {
 	    return NULL;
 	}
 	searchPtr->nextEntryPtr =
-		searchPtr->tablePtr->buckets[searchPtr->nextIndex];
+		tablePtr->buckets[searchPtr->nextIndex];
 	searchPtr->nextIndex++;
     }
     hPtr = searchPtr->nextEntryPtr;