search for: 064919

...lvm.org/pipermail/llvm-dev/2013-August/064714.html <http://lists.llvm.org/pipermail/llvm-dev/2013-August/064714.html> but I think he commented on one of my patches before that). > > I asked about it on llvm-dev a couple weeks later (http://lists.llvm.org/pipermail/llvm-dev/2013-August/064919.html <http://lists.llvm.org/pipermail/llvm-dev/2013-August/064919.html>) highlighting the contradiction and was told that 'no-op cast' referred to the lack of math rather than a requirement that zero instructions are used. It's therefore my understanding that shuffling the bits to...

...lvm.org/pipermail/llvm-dev/2013-August/064714.html <http://lists.llvm.org/pipermail/llvm-dev/2013-August/064714.html> but I think he commented on one of my patches before that). > > I asked about it on llvm-dev a couple weeks later (http://lists.llvm.org/pipermail/llvm-dev/2013-August/064919.html <http://lists.llvm.org/pipermail/llvm-dev/2013-August/064919.html>) highlighting the contradiction and was told that 'no-op cast' referred to the lack of math rather than a requirement that zero instructions are used. It's therefore my understanding that shuffling the bits to...

...hat first made me aware of it (see > http://lists.llvm.org/pipermail/llvm-dev/2013-August/064714.html but I > think he commented on one of my patches before that). > > > > I asked about it on llvm-dev a couple weeks later ( > http://lists.llvm.org/pipermail/llvm-dev/2013-August/064919.html) > highlighting the contradiction and was told that 'no-op cast' referred to > the lack of math rather than a requirement that zero instructions are used. > It's therefore my understanding that shuffling the bits to preserve the > load/store based definition isn't c...

Hi Daniel, I had a quick look at the language reference for bitcast and I have a different reading than what you were pointing out. Indeed, my take away is: "It is always a no-op cast because no bits change with this conversion." In other words, deleting all bitcast instructions should be fine. My understanding of the quote you’ve highlighted is that it tells C programmers that this

...llvm-dev/2013-August/064714.html <http://lists.llvm.org/pipermail/llvm-dev/2013-August/064714.html> but I think he commented on one of my patches before that). >> >> >> I asked about it on llvm-dev a couple weeks later (http://lists.llvm.org/pipermail/llvm-dev/2013-August/064919.html <http://lists.llvm.org/pipermail/llvm-dev/2013-August/064919.html>) highlighting the contradiction and was told that 'no-op cast' referred to the lack of math rather than a requirement that zero instructions are used. It's therefore my understanding that shuffling the bits to...