* function.c (STACK_ALIGNMENT_NEEDED): New macro. Default to 1.
(assign_stack_local_1): Perform overall stack alignment only when
STACK_ALIGNMENT_NEEDED is non-zero.
* doc/tm.texi (STACK_ALIGNMENT_NEEDED): Document.
* pa.c (compute_frame_size): Rename fsize to size. Account for
alignment to a word boundary before general register save block. Only
account for double-word alignment before floating point register save
block if one or more are saved. Don't allocate space for %r3 when
frame pointer is needed.
(hppa_expand_prologue): Include alignment to word boundary in local
frame size.
* pa.h (STARTING_FRAME_OFFSET): Define to 8 on both 32 and 64-bit ports.
(STACK_ALIGNMENT_NEEDED): Define.
From-SVN: r63771
