[PATCH 0/13 ver 3] rs6000, built-in cleanup patch series

[Carl Love <cel@linux.ibm.com>]

GCC maintainers:

The following is an updated patch series to remove duplicate built-ins.  

There are patches to extend an existing overloaded built-in to cover additional input types. 

A new patch, 0005-rs6000-Remove-redundant-float-double-type-conversion.patch, was added to remove built-ins that were inadvertently missing in the last version.  

Patch 12 patch in the previous series was dropped as the built-in __builtin_vsx_xvcmpeqsp is not a duplicate of the overloaded vec_cmpeq built-in.  Specifically, the return values are different.  The goal in this series is to remove built-ins that are functionally equivalent.  Patch 12 from the previous series will be reworked and submitted later.

Some of the patches in the previous series were approved, but everything is being reposted for completeness.  The following gives the mapping of the patches from the previous version to the current version of the series with notes on the patches.

Version 2                       Version 3		Notes
patch 1				patch 1			Approved, no changes
patch 2				patch 2			Responded to comments, no changes to the patch
patch 3				patch 3			Updated changelog, no functional changes
patch 4				patch 4			Updated patch
				patch 5			New patch to removed built-ins missed in the
							series.
patch 5				patch 6			Updated patch
patch 6				patch 7			Updated patch
patch 7				patch 8			Updated patch
patch 8				patch 9			Approved, no changes to this patch
patch 9				patch 10		Approved, no changes to this patch
patch 10			patch 11		Updated, added test file.
patch 11			patch 12		Updated
patch 12			                        Patch from previous series removed
patch 13			patch 13		Comments said built-ins __builtin_vec_set_v1ti
							__builtin_vec_set_v2di, __builtin_vec_set_v2df
							can also get removed with equivalent gimple codes.
							This is somewhat more involved than a simple
							removal of redundant built-ins.  The built-ins 
							will be removed in a separate future patch.

The patch series has been tested on Power 10 LE, Power 9 BE with no regression failures.
							in additional patch


The patches have all been tested on Power 10 LE.  The last patch was also tested on Power 8 BE.

No regression tests were seen.

Please let me know if the patches are acceptable for mainline.  Thanks.

                       Carl