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Re: [24/27] Put gcse's can_copy hash into target structures
On Jul 11, 2010, at 12:54 PM, Mike Stump <email@example.com> wrote:
On Jul 10, 2010, at 6:59 AM, Richard Sandiford wrote:
For the most part I think *most* of the "char" variables that
you're moving should really be "bool". However, I think that
should be done in separate changes.
Yeah, agreed that bool would be nicer. I vaguely recall a discussion
about whether that was a good idea though, given that hosts like
define bool to be wider than char. More fool them, I suppose.
:-) Hey, for -fwhole-program, is there a narrowing pass that can
change 4 byte variables into 1 byte variables? I'd not object to
using the arguably better bool for these things. bool is only 4
bytes on ppc, not on any of the x86 targets.
Actually bool is only 4 bytes on ppc Darwin. No other host or target.
From what I remember this was done not to break the abi. I would say
let's not worry about ppc Darwin as a host any more as there are no
new versions of the os being released.