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RE: [Patch,AVR]: Fix PR52496: Add memory barriers to built-ins
- From: "Weddington, Eric" <Eric dot Weddington at atmel dot com>
- To: "Georg-Johann Lay" <avr at gjlay dot de>, <gcc-patches at gcc dot gnu dot org>
- Cc: "Denis Chertykov" <chertykov at gmail dot com>
- Date: Wed, 7 Mar 2012 17:05:32 -0700
- Subject: RE: [Patch,AVR]: Fix PR52496: Add memory barriers to built-ins
- References: <4F575716.7090504@gjlay.de>
> -----Original Message-----
> From: Georg-Johann Lay [mailto:avr@gjlay.de]
> Sent: Wednesday, March 07, 2012 5:40 AM
> To: gcc-patches@gcc.gnu.org
> Cc: Denis Chertykov; Weddington, Eric
> Subject: [Patch,AVR]: Fix PR52496: Add memory barriers to built-ins
>
> This patch adds memory barriers to
>
> __builtin_avr_nop
> __builtin_avr_sei
> __builtin_avr_cli
> __builtin_avr_wdr
> __builtin_avr_sleep
> __builtin_avr_delay_cycles
>
> so that their code cannot be dragged over memory accesses.
>
> Ok for trunk?
>
Please commit.
Eric