mbox series

[0/4,Aarch64] v2: Implement Aarch64 SIMD ABI

Message ID 1541699413.12016.4.camel@cavium.com
Headers show
Series v2: Implement Aarch64 SIMD ABI | expand

Message

Steve Ellcey Nov. 8, 2018, 5:50 p.m. UTC 
This is an updated set of patches for the SIMD ABI on aarch64.  I have
updated all of them to apply to ToT.  The first two have no functional
changes from the last submittal.  The last two are a reworking of what
used to be a single patch.  I split it up into two parts and reworked
it to address comments by Richard Sandiford.

Code that does not use SIMD functions should not be affected by these
patches.  Patch 1 implements the ABI and Patch 2 allows for vectorization
of loops with SIMD functions.

Patch 3 allows for optimization of SIMD functions by recognizing that some
registers that need to be caller saved by normal functions do not need to
be saved when calling a SIMD function.

Patch 4 allows for optimization of SIMD functions by recognizing that some
registers that are partially clobbered by normal functions are not partially
clobbered by SIMD functions and do not need to be saved by the caller.


Steve Ellcey
sellcey@cavium.com