On Fri, 19 Apr 2024 20:58:43 GMT, Vladimir Kozlov <k...@openjdk.org> wrote:
>> src/hotspot/cpu/x86/stubGenerator_x86_64_arraycopy.cpp line 2638: >> >>> 2636: L_exit, _masm); >>> 2637: } >>> 2638: __ jmp(L_exit); >> >> Here is long jump to `L_exit` after `do_setmemory_atomic_loop()` call. >> Should this be also short jump? > > Do we have additional code in debug VM wihch increase distance and requires > long jump? I don't see it. Usually it something which call `__ STOP()`. The old code required a long jump due to the size of `do_setmemory_atomic_loop` but has since been refactored. The `jmp(Label)` code will generate a short jump provided the label has been defined and is in range. Otherwise a long jump is generated. Changed to `jmpb` ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/18555#discussion_r1573012933
