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RE: Auto Vectorizing help needed
- From: Tehila Meyzels <TEHILA at il dot ibm dot com>
- To: sdutta at m2000 dot com
- Cc: gcc at gcc dot gnu dot org, Dorit Nuzman <DORIT at il dot ibm dot com>
- Date: Mon, 26 Feb 2007 12:17:04 +0200
- Subject: RE: Auto Vectorizing help needed
sdutta@m2000.com wrote on 26/02/2007 10:40:59:
>I am targeting GCC 4.1.1 to a custom RISC processor; which has some vector
>instructions (32 bit vectors). It can perform two 16 bit/ or four 8 bit
>additions, subtractions, multiplications & shift operations
simultaneously.
>I would like to use the Auto-Vectorizing capability to generate these
>instructions. Is there an existing backend that I could look at for
>something similar? Any help will be greatly appreciated.
Maybe Dorit's lecture from the last HiPEAC GCC tutorial can help you:
http://www.hipeac.net/system/files?file=4_Nuzman.ppt
I think slides 14-18 are most relevant for you.
Good luck,
Tehila.
>SD