On Thu, 10 Apr 2025 08:19:19 GMT, Matthias Baesken <mbaes...@openjdk.org> wrote:
> On linux ppc64 / gcc , we build with the compile flag > -minsert-sched-nops=regroup_exact ; this is most likely outdated, maybe it > was still useful for old Power6 machines. > > See > https://gcc.gnu.org/onlinedocs/gcc-11.1.0/gcc/RS_002f6000-and-PowerPC-Options.html > -minsert-sched-nops=scheme : This option controls which NOP insertion scheme > is used during the second scheduling pass. The argument scheme takes one of > the following values: > ‘regroup_exact’ : Insert NOPs to force costly dependent insns into separate > groups. Insert exactly as many NOPs as needed to force an insn to a new > group, according to the estimated processor grouping. LGTM. ------------- Marked as reviewed by mdoerr (Reviewer). PR Review: https://git.openjdk.org/jdk/pull/24564#pullrequestreview-2763498735
