[PATCH][X86][Haswell][SchedModel] Add exceptions for instructions that diverge from the generic model.

[Nadav Rotem]

Hi Quentin, 

Sorry for the delay in response. Thanks for taking the time to work on improving the scheduling model for x86. 

> On Aug 8, 2014, at 5:10 PM, Quentin Colombet <qcolombet at apple.com> wrote:
> 
> Hi,
> 
> This series of patches adds an exception for each instruction that diverges from the generic scheduling model.
> It follows the structure of Agner Fog’s instructions tables and provides a patch for each sub-group.

Did you use Agner’s tables or the tables from the intel optimization guide? 

> 
> Although I had observed changes of the schedule of some test cases in the llvm-testsuite + SPECs, I had not measured anything than noise.
> Note: I have measured both ‘-O3 -march=native' and ‘-Os -march=native’ on a Haswell machine.

:( 

> 
> Thanks for your reviews.
> 
> -Quentin
> <0001-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0002-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0003-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0004-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0005-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0006-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0007-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0008-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0009-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0010-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0011-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0012-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0013-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0014-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0015-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0016-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0017-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0018-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0019-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0020-X86-Haswell-SchedModel-Add-architecture-specific-sch.patch><0021-X86-Haswell-SchedModel-Tidy-up.patch>