[gcc r14-8384] aarch64: Re-enable ldp/stp fusion pass

[Alex Coplan <acoplan@gcc.gnu.org>]

https://gcc.gnu.org/g:da9647e98aa289ba3aba41cf5bbe14d0f5f27e77

commit r14-8384-gda9647e98aa289ba3aba41cf5bbe14d0f5f27e77
Author: Alex Coplan <alex.coplan@arm.com>
Date:   Wed Jan 24 09:22:19 2024 +0000

    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:
---
 gcc/config/aarch64/aarch64.opt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

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.