On Fri, 1 May 2026 18:47:15 GMT, Ashutosh Mehra <[email protected]> wrote:
> I am not sure I understand how this can only be a perf issue. If the > instruction encoding is not valid on a platform, it would result in crash, > right? I think I get it now. For nop >= 12 bytes, the encoding is done using two sequences of multi-byte nops. eg on intel 12 byte nop = 8 byte nop + 4 byte nop on amd 12 byte nop = 6 byte + 6 byte So there are multiple ways to encode multibyte nops, but they all should be valid encodings on all vendors, and may just differ in performance. I agree it looks like it can have an impact on performance only. ------------- PR Comment: https://git.openjdk.org/jdk/pull/30778#issuecomment-4361644570
