https://gcc.gnu.org/g:7396000cd94e09986784fcf3d6e3ae796a0a99fa
commit 7396000cd94e09986784fcf3d6e3ae796a0a99fa Author: Michael Meissner <[email protected]> Date: Thu Dec 4 19:53:28 2025 -0500 Update ChangeLog.* Diff: --- gcc/ChangeLog.meissner | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner index 7670adfe22e7..6e92fae10219 100644 --- a/gcc/ChangeLog.meissner +++ b/gcc/ChangeLog.meissner @@ -1,3 +1,32 @@ +==================== Branch work230, patch #2 ==================== + +Use vector pair load/store for memcpy with -mcpu=future + +In the development for the power10 processor, GCC did not enable using the load +vector pair and store vector pair instructions when optimizing things like +memory copy. This patch enables using those instructions if -mcpu=future is +used. + +I have tested these patches on both big endian and little endian PowerPC +servers, with no regressions. Can I check these patchs into the trunk? + +2025-12-04 Michael Meissner <[email protected]> + +gcc/ + + * config/rs6000/rs6000-cpus.def (FUTURE_MASKS_SERVER): Enable using load + vector pair and store vector pair instructions for memory copy + operations. + (POWERPC_MASKS): Make the option for enabling using load vector pair and + store vector pair operations set and reset when the PowerPC processor is + changed. + * gcc/config/rs6000/rs6000.cc (rs6000_machine_from_flags): Disable + -mblock-ops-vector-pair from influencing .machine selection. + +gcc/testsuite/ + + * gcc.target/powerpc/future-3.c: New test. + ==================== Branch work230, patch #1 ==================== Add -mcpu=future.
