search for: uifs

...can't handle operators like MUL ( as they rely on linear arithmetic solvers, like simplex ). Spear takes a different approach - it is bit-precise, handles all operators, but currently doesn't handle arrays directly. However, the other mentioned thm provers handle arrays by encoding them as UIFs + several axioms. As UIFs can be encoded to SAT, I think that the theory of arrays could be as well. So, with a bit of effort, you should be able to use Spear for reasoning about arrays. Cheers, Domagoj Babic

I'm working on a bug where LLVM takes over six minutes to compile a module. After some hand-editing, the module looks like this: class half { private: union uif { unsigned int i; float f; }; static const uif _toFloat[1 << 16]; }; const half::uif half::_toFloat[1 << 16] = { {0x00000000}, {0x33800000}, {0x34000000}, {0x34400000}, {0x34800000},

> > Spear takes a different approach - it is bit-precise, handles all > operators, but > currently doesn't handle arrays directly. However, the other mentioned > thm provers > handle arrays by encoding them as UIFs + several axioms. As UIFs can be > encoded > to SAT, I think that the theory of arrays could be as well. So, with a > bit of effort, > you should be able to use Spear for reasoning about arrays. > > Thank you. I will try it. But what I really mean is that array simulation is not a...

On 4/9/07, Domagoj Babic <babic.domagoj at gmail.com> wrote: > > > Traditionally, such analyses have been considered too expensive to be > practical, and were mostly an academic curiosity. The core of the > problem is the lack of adequate automated decision procedures which > could quickly determine whether a set of constraints is satisfiable or > not, and if it is

Dear LLVMers, This email is intended for those interested in path-sensitive analysis, integer overflow analysis, static analysis, and (perhaps) loop invariant computation. Traditionally, such analyses have been considered too expensive to be practical, and were mostly an academic curiosity. The core of the problem is the lack of adequate automated decision procedures which could quickly

https://bugs.freedesktop.org/show_bug.cgi?id=78161 Priority: medium Bug ID: 78161 Assignee: nouveau at lists.freedesktop.org Summary: [NV96] Artifacts in output of fragment program containing not unrolled loops with conditional break Severity: normal Classification: Unclassified OS: Linux (All)

Hi I've attached an example about something I want to do in R. This example was done in a Fortran application called ASGL. Here's an example in matplotlib http://matplotlib.sourceforge.net/examples/pylab_examples/hexbin_demo.html Basically, it's like a scatter plot, but have several additional things. One thing are the grids inside the graph, and the other is a density bar used

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https://bugs.freedesktop.org/show_bug.cgi?id=90887 Bug ID: 90887 Summary: PhiMovesPass in register allocator broken Product: Mesa Version: git Hardware: All OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/nouveau Assignee: nouveau at