Actually, after reinvestigating this, "AFAIK, the vectorizer is smart
enough to automagically increase alignment on global arrays" so is not
of concern to Freescale. Also, Changing the alignment of arrays within
structs would change the field layout and would violate the ABI and be
incompatible wit
On 3/21/2011 3:26 PM, Andrew Pinski wrote:
On Mon, Mar 21, 2011 at 3:25 PM, Andrew Pinski wrote:
On Mon, Mar 21, 2011 at 3:21 PM, Wellander, Pat - Code Sourcery
wrote:
The stack is aligned at 16 bytes with AltiVec (if not, this patch would not
make sense).
Also, all char arrays are aligned a
On Mon, Mar 21, 2011 at 3:25 PM, Andrew Pinski wrote:
> On Mon, Mar 21, 2011 at 3:21 PM, Wellander, Pat - Code Sourcery
> wrote:
>> The stack is aligned at 16 bytes with AltiVec (if not, this patch would not
>> make sense).
>> Also, all char arrays are aligned at 16 bytes.
>> This patch causes ot
On Mon, Mar 21, 2011 at 3:21 PM, Wellander, Pat - Code Sourcery
wrote:
> The stack is aligned at 16 bytes with AltiVec (if not, this patch would not
> make sense).
> Also, all char arrays are aligned at 16 bytes.
> This patch causes other local stack arrays >= 16 bytes to be aligned at 16
> bytes
The stack is aligned at 16 bytes with AltiVec (if not, this patch would
not make sense).
Also, all char arrays are aligned at 16 bytes.
This patch causes other local stack arrays >= 16 bytes to be aligned at
16 bytes in order to
make more effective use of AltiVec instructions.
On 3/21/2011 3:0
On Mon, Mar 21, 2011 at 2:54 PM, Wellander, Pat - Code Sourcery
wrote:
> This is my first patch submittal so constructive criticism is appreciated.
> This patch causes PowerPC AltiVec local stack arrays > 16 bytes to be
> aligned at 16 bytes.
Wait I thought the alignment of the stack is 16 bytes
This is my first patch submittal so constructive criticism is appreciated.
This patch causes PowerPC AltiVec local stack arrays > 16 bytes to be
aligned at 16 bytes.
2011-01-27 Pat Wellander
* config/rs6000/rs6000.h (LOCAL_ALIGNMENT):
AltiVec local arrays >= 16 bytes are now aligned to
