Minor middle-of-release fix

Censor · Censor · commit 78e116b8bff0 · 2013-05-27T16:25:37.000-04:00
This change to make_move.c has no impact on the specialized compiles
released so far. It makes sure that prefetch is used only if HasPreFetch
is set. Relevant for making generic profiles.
diff --git a/src/make_move.c b/src/make_move.c
@@ -245,9 +245,11 @@ void MakeWhite(typePos *Position, uint32 move)
             }
         }
     Position->Stack[++(Position->StackHeight)] = Position->Dyn->Hash;
+#ifdef HasPreFetch
 	if(Position->Dyn->PawnHash != (Position->Dyn - 1)->PawnHash) // Code by Quoc Vuong
 		prefetch(PawnHash + (Position->Dyn->PawnHash & ((uint64)(CurrentPHashSize - 1))));
 	prefetch(HashTable + (Position->Dyn->Hash & HashMask));
+#endif
     }
 void MakeBlack(typePos *Position, uint32 move)
     {
@@ -357,9 +359,11 @@ void MakeBlack(typePos *Position, uint32 move)
             }
         }
     Position->Stack[++(Position->StackHeight)] = Position->Dyn->Hash;
+#ifdef HasPreFetch
 	if(Position->Dyn->PawnHash != (Position->Dyn - 1)->PawnHash) // Code by Quoc Vuong
 		prefetch(PawnHash + (Position->Dyn->PawnHash & ((uint64)(CurrentPHashSize - 1))));
 	prefetch(HashTable + (Position->Dyn->Hash & HashMask));
+#endif
     }
 void Make(typePos *Position, uint32 move)
     {

Original file line number	Diff line number	Diff line change
`@@ -245,9 +245,11 @@ void MakeWhite(typePos *Position, uint32 move)`
`245`	`245`	`}`
`246`	`246`	`}`
`247`	`247`	`Position->Stack[++(Position->StackHeight)] = Position->Dyn->Hash;`
	`248`	`+#ifdef HasPreFetch`
`248`	`249`	`if(Position->Dyn->PawnHash != (Position->Dyn - 1)->PawnHash) // Code by Quoc Vuong`
`249`	`250`	`prefetch(PawnHash + (Position->Dyn->PawnHash & ((uint64)(CurrentPHashSize - 1))));`
`250`	`251`	`prefetch(HashTable + (Position->Dyn->Hash & HashMask));`
	`252`	`+#endif`
`251`	`253`	`}`
`252`	`254`	`void MakeBlack(typePos *Position, uint32 move)`
`253`	`255`	`{`
`@@ -357,9 +359,11 @@ void MakeBlack(typePos *Position, uint32 move)`
`357`	`359`	`}`
`358`	`360`	`}`
`359`	`361`	`Position->Stack[++(Position->StackHeight)] = Position->Dyn->Hash;`
	`362`	`+#ifdef HasPreFetch`
`360`	`363`	`if(Position->Dyn->PawnHash != (Position->Dyn - 1)->PawnHash) // Code by Quoc Vuong`
`361`	`364`	`prefetch(PawnHash + (Position->Dyn->PawnHash & ((uint64)(CurrentPHashSize - 1))));`
`362`	`365`	`prefetch(HashTable + (Position->Dyn->Hash & HashMask));`
	`366`	`+#endif`
`363`	`367`	`}`
`364`	`368`	`void Make(typePos *Position, uint32 move)`
`365`	`369`	`{`