[Bug target/63347] [4.9 regression] m68k misoptimisation with -fschedule-insns

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63347

--- Comment #19 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Wed Jan 13 22:55:31 2016
New Revision: 232354

URL: https://gcc.gnu.org/viewcvs?rev=232354&root=gcc&view=rev
Log:

        PR target/63347
        * haifa-sched.c (prune_ready_list): If we have a SCHED_GROUP_P insn
        that needs to be queued, just queue it for a single cycle.

        PR target/63347
        * gcc.target/m68k/pr63347.c: New test.


Added:
    branches/gcc-4_9-branch/gcc/testsuite/gcc.target/m68k/pr63347.c
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/haifa-sched.c
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog