aarch64: Remove the aarch64_commit_lazy_save pattern

The main purpose of the aarch64_commit_lazy_save pattern
was to defer insertion of a half-diamond until splitting,
since splitting knew how to create the associated basic blocks.

However, the fix for PR113220 means that mode-switching also
knows how to do that.  This patch therefore removes the pattern
and emits the subinstructions directly.

On its own, this is actually a slight regression, since it
means we keep an unnecessary zero { za }.  But the cases
where that happens are wrong for a different reason, and this
patch is a prerequisite to fixing it.

gcc/
	* config/aarch64/aarch64-sme.md (aarch64_commit_lazy_save): Remove,
	directly inserting the associated sequence
	* config/aarch64/aarch64.cc (aarch64_mode_emit_local_sme_state):
	...here instead.

gcc/testsuite/
	* gcc.target/aarch64/sme/zt0_state_5.c (test3, test5): Expect
	zero { za }s.

0 files changed, 0 insertions, 0 deletions