search for: targetlowerinfo

...gmail.com> wrote: > Hi Sebastian, > > On 22/05/2012 23:25, Sebastian Pop wrote: >> So my question is how do we specify that for most of the operations i8 >> should be promoted to i32 and that only a few logical operations are >> legal on i8? > > I think the combo TargetLowerInfo::isTypeDesirableForOp() and > IsDesirableToPromoteOp() may help you here. X86 does something similar. I just tried these functions, and it seems like they are only modifying the behavior of type promotions for a small subset of operations (PromoteIntBinOp, PromoteIntShiftOp, PromoteExtend, Prom...

...n x86 for instance), but on Hexagon, predicate > registers can only be used in a few logical operations. > > So my question is how do we specify that for most of the operations i8 > should be promoted to i32 and that only a few logical operations are > legal on i8? I think the combo TargetLowerInfo::isTypeDesirableForOp() and IsDesirableToPromoteOp() may help you here. X86 does something similar. Ivan > > Thanks, > Sebastian > -- > Qualcomm Innovation Center, Inc is a member of Code Aurora Forum > > PS: I have tried to tweak the TransformToType table to specify the &gt...

...Sebastian, >> >> On 22/05/2012 23:25, Sebastian Pop wrote: >>> So my question is how do we specify that for most of the operations i8 >>> should be promoted to i32 and that only a few logical operations are >>> legal on i8? >> >> I think the combo TargetLowerInfo::isTypeDesirableForOp() and >> IsDesirableToPromoteOp() may help you here. X86 does something similar. > > I just tried these functions, and it seems like they are only > modifying the behavior of type promotions for a small subset of > operations (PromoteIntBinOp, PromoteIntShift...

Hi Eli, On Thu, Mar 1, 2012 at 2:21 PM, Eli Friedman <eli.friedman at gmail.com> wrote: > On Tue, Feb 28, 2012 at 11:17 AM, Tony Linthicum <tlinth at codeaurora.org> wrote: >> Hey folks, >> >> We are having some difficulty with how we have been representing our >> predicate registers, and wanted some advice from the list.  First, we >> had been

...> On 22/05/2012 23:25, Sebastian Pop wrote: > >>> So my question is how do we specify that for most of the > >>> operations i8 should be promoted to i32 and that only a few > >>> logical operations are legal on i8? > >> > >> I think the combo TargetLowerInfo::isTypeDesirableForOp() and > >> IsDesirableToPromoteOp() may help you here. X86 does something > >> similar. > > > > I just tried these functions, and it seems like they are only > > modifying the behavior of type promotions for a small subset of > > opera...