Re: [RFC][PR middle-end/59285] builtin-unreachable-6 on ARM

[Jeff Law]

On 11/27/13 00:57, Steven Bosscher wrote:
On Wed, Nov 27, 2013 at 6:47 AM, Jeff Law wrote:
How about rtl_merge_blocks getting smarter about removing BARRIERS between
the blocks-to-be-merged?

It'd be breaking away further from the rule that merge_blocks should
only work if can_merge_blocks.
(But that isn't enforced in cfgrtl mode right now anyway.)
Probably true.  One could argue the ifcvt code is abusing merge_blocks 
to a certain degree.

Jeff