search for: u3fctz

Displaying 5 results from an estimated 5 matches for "u3fctz".

2020 Feb 02
2
Questions about jump threading optimization and what we can do
...gt; effectively on. Thoughts? > > I'm confused. In your godbold link you run it with O0 which disables > almost all transformations. If we take the IR, remove the optnone > attribute, run mem2reg and jump-threading we get what I think is > reasonable: > https://godbolt.org/z/u3fcTZ > > Please correct me if I misunderstand anything here. > > Cheers, > Johannes > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20200202/34db416d/attachment.html>
2020 Feb 03
2
Questions about jump threading optimization and what we can do
...gt;> I'm confused. In your godbold link you run it with O0 which disables >>> almost all transformations. If we take the IR, remove the optnone >>> attribute, run mem2reg and jump-threading we get what I think is >>> reasonable: >>> https://godbolt.org/z/u3fcTZ >>> >>> Please correct me if I misunderstand anything here. >>> >>> Cheers, >>> Johannes > > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > https://lists.llvm.org/cgi-bin/mai...
2020 Jan 30
3
Questions about jump threading optimization and what we can do
Since the bug report here: https://bugs.llvm.org/show_bug.cgi?id=44679 I've been thinking about cases like it, such as: https://godbolt.org/z/Fwq8mn I wonder what we can do about this in a general sense. As far as I can tell, the jump threading algorithm is *really* conservative, which is one reason this isn't working as well as I'd hope; however, we don't want to produce
2020 Feb 03
2
Questions about jump threading optimization and what we can do
...dbold link you run it with O0 which disables >> >>> almost all transformations. If we take the IR, remove the optnone >> >>> attribute, run mem2reg and jump-threading we get what I think is >> >>> reasonable: >> >>> https://godbolt.org/z/u3fcTZ >> >>> >> >>> Please correct me if I misunderstand anything here. >> >>> >> >>> Cheers, >> >>> Johannes >> > >> > _______________________________________________ >> > LLVM Developers mailing list...
2020 Feb 03
2
Questions about jump threading optimization and what we can do
...disables >> >> >>> almost all transformations. If we take the IR, remove the optnone >> >> >>> attribute, run mem2reg and jump-threading we get what I think is >> >> >>> reasonable: >> >> >>> https://godbolt.org/z/u3fcTZ >> >> >>> >> >> >>> Please correct me if I misunderstand anything here. >> >> >>> >> >> >>> Cheers, >> >> >>> Johannes >> >> > >> >> > ___________________________...