r220751 - in /trunk/gcc: ChangeLog haifa-sched.c

[jgreenhalgh@gcc.gnu.org]

Author: jgreenhalgh
Date: Tue Feb 17 09:19:33 2015
New Revision: 220751

URL: https://gcc.gnu.org/viewcvs?rev=220751&root=gcc&view=rev
Log:
[Haifa Scheduler] Fix latent bug in macro-fusion/instruction grouping

gcc/

	* haifa-sched.c (recompute_todo_spec): Treat SCHED_GROUP_P
	as forcing a HARD_DEP between instructions, thereby
	disallowing rewriting to break dependencies.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/haifa-sched.c