> > Here is how I started with SelectionDAG: > > - small IR (bugpoint can help) >Did you mean a break poing? - the magic flag: -debug> - read the output of SelectionDAG debugging (especially with cycles) > - matching the log to source code >What log are you talking about?> - single stepping in a debugger sometimes. > > > -- > Mehdi > >-- Rail Shafigulin Software Engineer Esencia Technologies -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160318/8ff6bf5c/attachment.html>
> On Mar 18, 2016, at 4:14 PM, Rail Shafigulin <rail at esenciatech.com> wrote: > > Here is how I started with SelectionDAG: > > - small IR (bugpoint can help) > Did you mean a break point?No I really meant bugpoint: http://llvm.org/docs/Bugpoint.html> > - the magic flag: -debug > - read the output of SelectionDAG debugging (especially with cycles) > - matching the log to source code > What log are you talking about?llc -debug mentioned above. -- Mehdi> > - single stepping in a debugger sometimes. > > > -- > Mehdi > > > > > -- > Rail Shafigulin > Software Engineer > Esencia Technologies-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160318/3f5d307f/attachment-0001.html>
On Fri, Mar 18, 2016 at 4:16 PM, Mehdi Amini <mehdi.amini at apple.com> wrote:> > On Mar 18, 2016, at 4:14 PM, Rail Shafigulin <rail at esenciatech.com> wrote: > > Here is how I started with SelectionDAG: >> >> - small IR (bugpoint can help) >> > Did you mean a break point? > > > No I really meant bugpoint: http://llvm.org/docs/Bugpoint.html > > > - the magic flag: -debug >> - read the output of SelectionDAG debugging (especially with cycles) >> - matching the log to source code >> > What log are you talking about? > > > llc -debug mentioned above. >What do you mean by matching a log to source? What log are you talking about?> > -- > Mehdi > > > >> - single stepping in a debugger sometimes. >> >> >> -- >> Mehdi >> >> > > > -- > Rail Shafigulin > Software Engineer > Esencia Technologies > > >-- Rail Shafigulin Software Engineer Esencia Technologies -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160318/6f55657a/attachment.html>