[Bug target/79742] [7 Regression] ARM sched pipeline selection problems

[rearnsha at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79742

--- Comment #4 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Author: rearnsha
Date: Tue Feb 28 14:17:29 2017
New Revision: 245775

URL: https://gcc.gnu.org/viewcvs?rev=245775&root=gcc&view=rev
Log:
[ARM] Fix PR79742 incorrect scheduler choice.

Due to an oversight, the changes to use the new CPU generation tables
forgot to handle selecting a scheduler for a CPU other than the named
CPU target.  This meant that if, say, cortex-a12 was used, the null
scheduler was chosen rather than cortex-a17's scheduler as intended.
The fix is to correctly use the 'tune for' field when generating the
target-specific data files.

This revealed a spelling mistake in the name of the tune target in
cortex-m0.small-multiply.

        PR target/79742
        * config/arm/parsecpu.awk (gen_data): Set tuning target to 'tune for'
        entry, if present.
        * config/arm/arm-cpus.in (cortex-m0plus.small-multiply): Correct
        'tune for' CPU name.
        * config/arm/arm-cpu-data.h: Regenerated.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm-cpu-data.h
    trunk/gcc/config/arm/arm-cpus.in
    trunk/gcc/config/arm/parsecpu.awk