PR tree-optimization/43884
	PR lto/44334
	* predict.c (maybe_hot_frequency_p): Use entry block frequency as an base.
	* doc/invoke.texi (hot-bb-frequency-fraction): Update docs.
	* gcc.dg/autopar/outer-2.c: Increase array size.
	* gcc.dg/tree-ssa/ldist-pr45948.c: Update test.

From-SVN: r169136