Re: [PATCHv3] Fix not 8-byte aligned ldrd/strd on ARMv5 (PR 89544)

["Richard Earnshaw (lists)" <Richard.Earnshaw@arm.com>]

On 30/07/2019 21:51, Bernd Edlinger wrote:
> +/* { dg-options "-marm -march=armv6 -mno-unaligned-access -mfloat-abi=soft -mabi=aapcs -O3" } */

This isn't going to work as-is, we test many combinations of the 
compiler, either with explicit dejagnu settings or with the compiler 
defaults and the dejagnu settings can't generally be overridden this way.

For -marm you require an effective-target of arm_arm_ok.  For ldrd, it 
should be enough to just require an effective-target of 
arm_ldrd_strd_ok, then you can .

I don't think we really care about any ABIs other than aapcs, so I'd 
just leave that off.  And as for setting the float-abi, I don't see 
anything in the tests that would require that, so that can probably be 
omitted as well.

I think with all this, you can then write something like

/* { dg-require-effective-target arm_arm_ok && arm_ldrd_strd_ok } */
/* { dg-options "-marm -mno-unaligned-access -O3 } */

But I haven't tested that, so you might need to fiddle with it a bit, 
especially the effective-target rule.

R.