This patch series implements the changes/additions to the ARM ABI proposed at
https://gcc.gnu.org/ml/gcc/2015-07/msg00040.html .
The first patch is the ABI update. This is an ABI-breaking change for any code
using __attribute__((aligned(...))) on a public interface (a case not previously
defined by the AAPCS).
This causes a regression of gcc.c-torture/execute/20040709-1.c at -O0 (only),
and the align_rec2.c fails, both due to a latent bug where we can emit strd/ldrd
on an odd-numbered register in ARM state. The second patch prevents such illegal
instructions and fixes both tests.
On trunk, tested via bootstrap + check-gcc on arm-none-linux-gnueabihf
(cortex-a15+neon). Also cross-tested arm-none-eabi with a number of variants.
On gcc-5-branch, patches rebase cleanly, tested via profiledbootstrap +
check-gcc. (Yes, profiledbootstrap succeeds.)
- [PATCH 0/2][trunk+5 backport][ARM] PR/65956 Implement... Alan Lawrence
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