re PR target/69252 (gcc.dg/vect/vect-iv-9.c FAILs with -Os -fmodulo-sched -fmodulo-sched-allow-regmoves -fsched-pressure)

	PR target/69252
	* modulo-sched.c (optimize_sc):	Allow branch-scheduling to add a new
	first stage.

	PR target/69252
	* gcc.target/powerpc/pr69252.c: New test.

From-SVN: r232712