8371649: ZGC: AArch64: redundant OrderAccess::fence in ZBarrierSetAssembler::patch_barrier_relocation

Evgeny Astigeevich · Evgeny Astigeevich · commit d2926dfd9a24 · 2025-11-19T12:11:23.000Z
Reviewed-by: aph
diff --git a/src/hotspot/cpu/aarch64/gc/z/zBarrierSetAssembler_aarch64.cpp b/src/hotspot/cpu/aarch64/gc/z/zBarrierSetAssembler_aarch64.cpp
@@ -879,7 +879,6 @@ void ZBarrierSetAssembler::patch_barrier_relocation(address addr, int format) {
     ShouldNotReachHere();
   }
 
-  OrderAccess::fence();
   ICache::invalidate_word((address)patch_addr);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -879,7 +879,6 @@ void ZBarrierSetAssembler::patch_barrier_relocation(address addr, int format) {`
`879`	`879`	`ShouldNotReachHere();`
`880`	`880`	`}`
`881`	`881`
`882`		`- OrderAccess::fence();`
`883`	`882`	`ICache::invalidate_word((address)patch_addr);`
`884`	`883`	`}`
`885`	`884`