search for: d28404

In D28404, Mehdi wanted to use the 'optnone' attribute as a way to record "I was compiled with -O0" in the IR, because it seems like a good idea to remember that fact in an LTO compilation and there is no way to remember that fact currently. A couple of people felt it might be better to ha...

...; If you want to debug and rebuild only part of the program, CFI still requires to use LTO, IIUC. — Mehdi > > -- Sean Silva > > On Wed, Jan 11, 2017 at 8:34 AM, Robinson, Paul via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: > In D28404, Mehdi wanted to use the 'optnone' attribute as a way to record > "I was compiled with -O0" in the IR, because it seems like a good idea to > remember that fact in an LTO compilation and there is no way to remember > that fact currently. A couple of people felt it might...

...rstand the interaction of our pass pipeline. Having an attribute that tells the optimizer to ignore a function (more or less) is really useful, and I'd rather not loose that functionality. > > Philip > > > On 01/11/2017 08:34 AM, Robinson, Paul via llvm-dev wrote: >> In D28404, Mehdi wanted to use the 'optnone' attribute as a way to record >> "I was compiled with -O0" in the IR, because it seems like a good idea to >> remember that fact in an LTO compilation and there is no way to remember >> that fact currently. A couple of people fe...

...Amongst other, this will help LTO to correctly handle/honor files compiled with O0, helping debugging failures. It also seems in line with how we handle other options, like how -fnoinline adds the appropriate attribute as well. Differential Revision: https://reviews.llvm.org/D28404 ~Craig On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> wrote: > @Zhaopei, thanks for the clarification. > > @Craig and @Michael, for clang 4.0.1, -Xclang -disable-O0-optnone gives > the following error message. From which version -disable-O0-optnone ge...

...ctly handle/honor files > > compiled with O0, helping debugging failures. > > It also seems in line with how we handle other options, like how > > -fnoinline adds the appropriate attribute as well. > > > > Differential Revision: https://reviews.llvm.org/D28404 > > > > ~Craig > > On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> wrote: > >> @Zhaopei, thanks for the clarification. >> >> @Craig and @Michael, for clang 4.0.1, -Xclang -disable-O0-optnone gives >> the following error mess...

...; compiled with O0, helping debugging failures. >> >> It also seems in line with how we handle other options, like how >> >> -fnoinline adds the appropriate attribute as well. >> >> >> >> Differential Revision: https://reviews.llvm.org/D28404 >> >> >> >> ~Craig >> >> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >> wrote: >> >>> @Zhaopei, thanks for the clarification. >>> >>> @Craig and @Michael, for clang 4.0.1, -Xclang -disable-O...

...; compiled with O0, helping debugging failures. >> >> It also seems in line with how we handle other options, like how >> >> -fnoinline adds the appropriate attribute as well. >> >> >> >> Differential Revision: https://reviews.llvm.org/D28404 >> >> >> >> ~Craig >> >> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >> wrote: >> >>> @Zhaopei, thanks for the clarification. >>> >>> @Craig and @Michael, for clang 4.0.1, -Xclang -disable-O...

...; compiled with O0, helping debugging failures. >> >> It also seems in line with how we handle other options, like how >> >> -fnoinline adds the appropriate attribute as well. >> >> >> >> Differential Revision: https://reviews.llvm.org/D28404 >> >> >> >> ~Craig >> >> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >> wrote: >> >>> @Zhaopei, thanks for the clarification. >>> >>> @Craig and @Michael, for clang 4.0.1, -Xclang -disable-O...

...debugging failures. >>> >>> It also seems in line with how we handle other options, like how >>> >>> -fnoinline adds the appropriate attribute as well. >>> >>> >>> >>> Differential Revision: https://reviews.llvm.org/D28404 >>> >>> >>> >>> ~Craig >>> >>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>> wrote: >>> >>>> @Zhaopei, thanks for the clarification. >>>> >>>> @Craig and @M...

...debugging failures. >>> >>> It also seems in line with how we handle other options, like how >>> >>> -fnoinline adds the appropriate attribute as well. >>> >>> >>> >>> Differential Revision: https://reviews.llvm.org/D28404 >>> >>> >>> >>> ~Craig >>> >>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>> wrote: >>> >>>> @Zhaopei, thanks for the clarification. >>>> >>>> @Craig and @M...

...debugging failures. >>> >>> It also seems in line with how we handle other options, like how >>> >>> -fnoinline adds the appropriate attribute as well. >>> >>> >>> >>> Differential Revision: https://reviews.llvm.org/D28404 >>> >>> >>> >>> ~Craig >>> >>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>> wrote: >>> >>>> @Zhaopei, thanks for the clarification. >>>> >>>> @Craig and @M...

...> >>>> It also seems in line with how we handle other options, like how >>>> >>>> -fnoinline adds the appropriate attribute as well. >>>> >>>> >>>> >>>> Differential Revision: https://reviews.llvm.org/D28404 >>>> >>>> >>>> >>>> ~Craig >>>> >>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>> wrote: >>>> >>>>> @Zhaopei, thanks for the clarification. >>&gt...

...> >>>> It also seems in line with how we handle other options, like how >>>> >>>> -fnoinline adds the appropriate attribute as well. >>>> >>>> >>>> >>>> Differential Revision: https://reviews.llvm.org/D28404 >>>> >>>> >>>> >>>> ~Craig >>>> >>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>> wrote: >>>> >>>>> @Zhaopei, thanks for the clarification. >>&gt...

...> >>>> It also seems in line with how we handle other options, like how >>>> >>>> -fnoinline adds the appropriate attribute as well. >>>> >>>> >>>> >>>> Differential Revision: https://reviews.llvm.org/D28404 >>>> >>>> >>>> >>>> ~Craig >>>> >>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>> wrote: >>>> >>>>> @Zhaopei, thanks for the clarification. >>&gt...

...with how we handle other options, like how >>>>>> >>>>>> -fnoinline adds the appropriate attribute as well. >>>>>> >>>>>> >>>>>> >>>>>> Differential Revision: https://reviews.llvm.org/D28404 >>>>>> >>>>>> >>>>>> >>>>>> ~Craig >>>>>> >>>>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>>>> wrote: >>>>>> >>...

...It also seems in line with how we handle other options, like how >>>>> >>>>> -fnoinline adds the appropriate attribute as well. >>>>> >>>>> >>>>> >>>>> Differential Revision: https://reviews.llvm.org/D28404 >>>>> >>>>> >>>>> >>>>> ~Craig >>>>> >>>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>>> wrote: >>>>> >>>>>> @Zhaopei, thank...

...with how we handle other options, like how >>>>>> >>>>>> -fnoinline adds the appropriate attribute as well. >>>>>> >>>>>> >>>>>> >>>>>> Differential Revision: https://reviews.llvm.org/D28404 >>>>>> >>>>>> >>>>>> >>>>>> ~Craig >>>>>> >>>>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>>>> wrote: >>>>>> >>...

...> >>>> It also seems in line with how we handle other options, like how >>>> >>>> -fnoinline adds the appropriate attribute as well. >>>> >>>> >>>> >>>> Differential Revision: https://reviews.llvm.org/D28404 >>>> >>>> >>>> >>>> ~Craig >>>> >>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>> wrote: >>>> >>>>> @Zhaopei, thanks for the clarification. >>&gt...

...options, like how >>>>>>> >>>>>>> -fnoinline adds the appropriate attribute as well. >>>>>>> >>>>>>> >>>>>>> >>>>>>> Differential Revision: https://reviews.llvm.org/D28404 >>>>>>> >>>>>>> >>>>>>> >>>>>>> ~Craig >>>>>>> >>>>>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>>>>> wrote: >&...

...It also seems in line with how we handle other options, like how >>>>> >>>>> -fnoinline adds the appropriate attribute as well. >>>>> >>>>> >>>>> >>>>> Differential Revision: https://reviews.llvm.org/D28404 >>>>> >>>>> >>>>> >>>>> ~Craig >>>>> >>>>> On Fri, Jan 5, 2018 at 4:49 PM, toddy wang <wenwangtoddy at gmail.com> >>>>> wrote: >>>>> >>>>>> @Zhaopei, thank...