re PR target/39942 (Nonoptimal code - leaveq; xchg %ax,%ax; retq)

re PR target/39942 (Nonoptimal code - leaveq; xchg   %ax,%ax; retq)

2009-05-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/39942
	* config/i386/i386.c (ix86_avoid_jump_misspredicts): Replace
	gen_align with gen_pad.
	(ix86_reorg): Check ASM_OUTPUT_MAX_SKIP_PAD instead of
	#ifdef ASM_OUTPUT_MAX_SKIP_ALIGN.

	* config/i386/i386.h (ASM_OUTPUT_MAX_SKIP_PAD): New.
	* config/i386/x86-64.h (ASM_OUTPUT_MAX_SKIP_PAD): Likewise.

	* config/i386/i386.md (align): Renamed to ...
	(pad): This.  Replace ASM_OUTPUT_MAX_SKIP_ALIGN with
	ASM_OUTPUT_MAX_SKIP_PAD.

From-SVN: r147671