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[4.4] Backport various selective scheduler fixes


Hello,

I have backported various selective scheduler fixes to 4.4 that never made it there over the last year. The backport should be safe as it is within the sel-sched files except the few interface changes to init_deps that were needed for the memory consumption reduction patch, and those do not change behavior for other schedulers. All of the patches were on trunk for a couple of months except the last fix which was in at least for a week.

The combined backport patch was bootstrapped and tested on ia64, also with the selective scheduler running as a default one, and bootstrapped and tested on x86-64. I have also made a successful test run of SPEC2K on ia64 with and without selective scheduler.

The backport was approved by Jakub offline and committed as 19 separate patches to gcc-4_4-branch. The combined patch can be found below for reference.

Andrey

Attachment: combined-backport-patch
Description: Text document


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