re PR target/43920 (Choosing conditional execution over conditional branches for...

re PR target/43920 (Choosing conditional execution over conditional branches for code size in some cases.)

2011-04-07  Tom de Vries  <tom@codesourcery.com>

	PR target/43920
	* cfgcleanup.c (walk_to_nondebug_insn): New function.
	(flow_find_cross_jump): Use walk_to_nondebug_insn.  Recalculate bb1 and
	bb2.
	(try_crossjump_to_edge): Handle case that newpos1 or newpos2 is not src1
	or src2.  Redirect edges to the last basic block.  Update frequency and
	count on multiple basic blocks in case of fallthru.

From-SVN: r172091