Re: [4.8, PATCH 0/26] Backport Power8 and LE support

[Bill Schmidt <wschmidt at linux dot vnet dot ibm dot com>]

For convenience of those who have kindly agreed to test the patch
series, here is the entire series as a single compressed patch.  Note
that this does not include patch 15/26, which we've agreed to submit
separately.

Bill

On Wed, 2014-03-19 at 14:23 -0500, Bill Schmidt wrote:
> Hi,
> 
> Support for Power8 features and the new powerpc64le-linux-gnu target,
> including the ELFv2 ABI, has been developed up till now on the
> ibm/gcc-4_8-branch.  It was appropriate to use this separate branch
> while the support was unstable, but this branch will not represent a
> particularly good support mechanism for distributions going forward.
> Most distros are set up to pull from the major release branches, and
> having a separate branch for one target is quite inconvenient.  Also,
> the ibm/gcc-4_8-branch's original purpose is to serve as the code base
> for IBM's Advance Toolchain 7.0.  Over time the two purposes that the
> branch currently serves will diverge and make things even more
> complicated.
> 
> The code is now tested and stable enough that we are ready to backport
> this support to the FSF 4.8 branch.  This patch series constitutes that
> backport.
> 
> Almost all of the changes are specific to PowerPC portions of the code,
> and for those patches I am only CCing David.  However, some of the
> patches require changes to common code, and for these I will CC Richard
> and Jakub.  Three of these are slightly unrelated but necessary patches,
> one to enable decimal float ABS builtins, and two others to fix PR54537
> and PR56843.  In addition there are patches that update configuration
> files throughout for the new target, and some small changes in common
> call support (call.c, expr.h, function.c) to support how the new ABI
> handles calls.
> 
> I realize it is unusual to backport such a large amount of code, but we
> have been asked by distribution partners to do this, and we feel it
> makes good sense for long-term support.
> 
> I have tested the patch series by applying it to a clean FSF 4.8 branch
> and comparing the test results against those from the IBM 4.8 branch on
> three systems:
>  * Power8, little endian (--mcpu=power8)
>  * Power8, big endian (--mcpu=power8)
>  * Power7, big endian (--mcpu=power7)
> 
> I also checked a recursive diff against the two source directories to
> ensure that no patches were missed.
> 
> Thanks,
> Bill
> 
> [ 1/26] diff-p8
> [ 2/26] diff-p8-htm
> [ 3/26] diff-le-config
> [ 4/26] diff-le-libtool
> [ 5/26] diff-le-tests
> [ 6/26] diff-le-dfp
> [ 7/26] diff-le-vector
> [ 8/26] diff-abi-compat
> [ 9/26] diff-abi-calls
> [10/26] diff-abi-elfv2
> [11/26] diff-abi-gotest
> [12/26] diff-le-align
> [13/26] diff-abi-libffi
> [14/26] diff-dfp-abs
> [15/26] diff-pr54537
> [16/26] diff-pr56843
> [17/26] diff-direct-move
> [18/26] diff-le-config-2
> [19/26] diff-quad-memory
> [20/26] diff-lra
> [21/26] diff-le-vector-api
> [22/26] diff-mcall
> [23/26] diff-pr60137-pr60203
> [24/26] diff-reload
> [25/26] diff-v1ti
> [26/26] diff-trunk-missing
> 
> 
> 
> 
>

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