Re: [RFA][PATCH][PR middle-end/59285] BARRIERS and merged blocks

2014-01-07 Thread Jeff Law
On 01/07/14 01:08, Steven Bosscher wrote: On Tuesday, January 7, 2014, Jeff Law wrote: On 12/24/13 13:19, Steven Bosscher wrote: For GCC 4.10 we should define what behavior should result from builtin_unreachable (Should it trap? Can it be optimized away

Re: [RFA][PATCH][PR middle-end/59285] BARRIERS and merged blocks

2014-01-06 Thread Jeff Law
On 12/24/13 13:19, Steven Bosscher wrote: On Fri, Dec 20, 2013 at 7:30 PM, Jeff Law wrote: So here's an alternate approach to fixing 59285. I still think attacking this in rtl_merge_blocks is better, but with nobody else chiming in to break the deadlock Steven and myself are in, I'll go with

Re: [RFA][PATCH][PR middle-end/59285] BARRIERS and merged blocks

2013-12-24 Thread Steven Bosscher
On Fri, Dec 20, 2013 at 7:30 PM, Jeff Law wrote: So here's an alternate approach to fixing 59285. I still think attacking this in rtl_merge_blocks is better, but with nobody else chiming in to break the deadlock Steven and myself are in, I'll go with Steven's preferred solution (fix the

[RFA][PATCH][PR middle-end/59285] BARRIERS and merged blocks

2013-12-20 Thread Jeff Law
So here's an alternate approach to fixing 59285. I still think attacking this in rtl_merge_blocks is better, but with nobody else chiming in to break the deadlock Steven and myself are in, I'll go with Steven's preferred solution (fix the callers in ifcvt.c). If we were to return to a fix