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Re: [PATCH][ARM] FAIL: gcc.target/arm/pr58041.c scan-assembler ldrb
- From: "Maciej W. Rozycki" <macro at codesourcery dot com>
- To: <ramrad01 at arm dot com>
- Cc: Kyrylo Tkachov <kyrylo dot tkachov at arm dot com>, Ramana Radhakrishnan <Ramana dot Radhakrishnan at arm dot com>, Julian Brown <julian at codesourcery dot com>, gcc-patches <gcc-patches at gcc dot gnu dot org>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>
- Date: Tue, 27 May 2014 19:40:50 +0100
- Subject: Re: [PATCH][ARM] FAIL: gcc.target/arm/pr58041.c scan-assembler ldrb
- Authentication-results: sourceware.org; auth=none
- References: <20130809110108 dot 4b63b456 at octopus> <5204CB97 dot 6050205 at arm dot com> <alpine dot DEB dot 1 dot 10 dot 1405260424161 dot 512 at tp dot orcam dot me dot uk> <CAJA7tRZ_wmKGJpDs2DvAgKEP8FkWfPZw+jAfSbTqXDW16vckMA at mail dot gmail dot com>
On Tue, 27 May 2014, Ramana Radhakrishnan wrote:
> > Beforehand the code fragment in question produced was:
> >
> > .L14:
> > sub r1, r3, #16
> > add r3, r3, #16
> > vld1.8 {q8}, [r1]
>
> vld1 allows a misaligned load.
Can you point me at the relevant piece of documentation BTW?
Thanks,
Maciej