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Questions about jump threading optimization and what we can do
2020 Feb 03
2
Questions about jump threading optimization and what we can do
...ared to gcc: https://godbolt.org/z/F-oah4 (clang unnecessarily introduces another temporary register, but that seems unrelated) Michael Am So., 2. Feb. 2020 um 18:24 Uhr schrieb Karl Rehm via llvm-dev <llvm-dev at lists.llvm.org>: > > Here's a better example. https://godbolt.org/z/fpTyFS > I don't know what exactly you would need to change in JumpThreading to improve this, but I'm open to ideas. > > On Sun, Feb 2, 2020 at 12:45 PM Karl Rehm <klrehm123 at gmail.com> wrote: >> >> Holy crap, I completely missed that. I'm sorry! That's my fau...
Questions about jump threading optimization and what we can do
2020 Feb 03
2
Questions about jump threading optimization and what we can do
...ces another temporary register, but that >> seems unrelated) >> >> Michael >> >> Am So., 2. Feb. 2020 um 18:24 Uhr schrieb Karl Rehm via llvm-dev >> <llvm-dev at lists.llvm.org>: >> > >> > Here's a better example. https://godbolt.org/z/fpTyFS >> > I don't know what exactly you would need to change in JumpThreading to improve this, but I'm open to ideas. >> > >> > On Sun, Feb 2, 2020 at 12:45 PM Karl Rehm <klrehm123 at gmail.com> wrote: >> >> >> >> Holy crap, I completely...
Questions about jump threading optimization and what we can do
2020 Feb 02
2
Questions about jump threading optimization and what we can do
Holy crap, I completely missed that. I'm sorry! That's my fault. On Sun, Feb 2, 2020 at 12:15 PM Johannes Doerfert <jdoerfert at anl.gov> wrote: > On 01/30, Karl Rehm via llvm-dev wrote: > > 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 > > >
Questions about jump threading optimization and what we can do
2020 Feb 03
2
Questions about jump threading optimization and what we can do
...ed) >> >> >> >> Michael >> >> >> >> Am So., 2. Feb. 2020 um 18:24 Uhr schrieb Karl Rehm via llvm-dev >> >> <llvm-dev at lists.llvm.org>: >> >> > >> >> > Here's a better example. https://godbolt.org/z/fpTyFS >> >> > I don't know what exactly you would need to change in JumpThreading >> to improve this, but I'm open to ideas. >> >> > >> >> > On Sun, Feb 2, 2020 at 12:45 PM Karl Rehm <klrehm123 at gmail.com> >> wrote: >> >&g...