This turns on the GPR narrowing pass for all AArch64 targets.
gcc/ChangeLog:
* config/aarch64/aarch64-tuning-flags.def
(AARCH64_EXTRA_TUNE_BASE): Add AARCH64_EXTRA_TUNE_NARROW_GP_WRITES.
/* Baseline tuning settings suitable for all modern cores. */
#define AARCH64_EXTRA_TUNE_BASE (AARCH64_EXTRA_TUNE_CHEAP_SHIFT_EXTEND \
- | AARCH64_EXTRA_TUNE_FULLY_PIPELINED_FMA)
+ | AARCH64_EXTRA_TUNE_FULLY_PIPELINED_FMA \
+ | AARCH64_EXTRA_TUNE_NARROW_GP_WRITES)
/* Enables dispatch scheduling. */
AARCH64_EXTRA_TUNING_OPTION ("dispatch_sched", DISPATCH_SCHED)