Revert "lockhammer/prefetch64: do not dereference lock pointer"

rpgolshan · web-flow · commit 7dd475a9498d · 2021-10-19T13:52:17.000-05:00
diff --git a/benchmarks/lockhammer/include/atomics.h b/benchmarks/lockhammer/include/atomics.h
@@ -95,7 +95,7 @@ static inline void prefetch64 (unsigned long *ptr) {
 #if defined(__aarch64__)
 	asm volatile("	prfm	pstl1keep, %[ptr]\n"
 	:
-	: [ptr] "Q" (ptr));
+	: [ptr] "Q" (*(unsigned long *)ptr));
 #endif
 }
 

Original file line number	Diff line number	Diff line change
`@@ -95,7 +95,7 @@ static inline void prefetch64 (unsigned long *ptr) {`
`95`	`95`	`#if defined(__aarch64__)`
`96`	`96`	`asm volatile(" prfm pstl1keep, %[ptr]\n"`
`97`	`97`	`:`
`98`		`- : [ptr] "Q" (ptr));`
	`98`	`+ : [ptr] "Q" ((unsigned long )ptr));`
`99`	`99`	`#endif`
`100`	`100`	`}`
`101`	`101`