Hi, Since, to the best of my knowledge, all reported regressions related to the ldp/stp fusion pass have now been fixed, and PGO+LTO bootstrap with --enable-languages=all is working again with the passes enabled, this patch turns the passes back on by default, as agreed with Jakub here:
https://gcc.gnu.org/pipermail/gcc-patches/2024-January/642478.html Bootstrapped/regtested on aarch64-linux-gnu, OK for trunk? Thanks, Alex gcc/ChangeLog: * config/aarch64/aarch64.opt (-mearly-ldp-fusion): Set default to 1. (-mlate-ldp-fusion): Likewise.
diff --git a/gcc/config/aarch64/aarch64.opt b/gcc/config/aarch64/aarch64.opt index c495cb34fbf..ceed5cdb201 100644 --- a/gcc/config/aarch64/aarch64.opt +++ b/gcc/config/aarch64/aarch64.opt @@ -290,12 +290,12 @@ Target Var(aarch64_track_speculation) Generate code to track when the CPU might be speculating incorrectly. mearly-ldp-fusion -Target Var(flag_aarch64_early_ldp_fusion) Optimization Init(0) +Target Var(flag_aarch64_early_ldp_fusion) Optimization Init(1) Enable the copy of the AArch64 load/store pair fusion pass that runs before register allocation. mlate-ldp-fusion -Target Var(flag_aarch64_late_ldp_fusion) Optimization Init(0) +Target Var(flag_aarch64_late_ldp_fusion) Optimization Init(1) Enable the copy of the AArch64 load/store pair fusion pass that runs after register allocation.
