From: Alex Coplan Date: Wed, 24 Jan 2024 09:22:19 +0000 (+0000) Subject: aarch64: Re-enable ldp/stp fusion pass X-Git-Tag: basepoints/gcc-15~1755 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da9647e98aa289ba3aba41cf5bbe14d0f5f27e77;p=thirdparty%2Fgcc.git aarch64: Re-enable ldp/stp fusion pass 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 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 c495cb34fbfb..ceed5cdb201f 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.