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View of /sml/trunk/src/MLRISC/Doc/latex/mlrisc-graphics.tex

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Revision 651 - (download) (as text) (annotate)
Thu Jun 1 18:34:03 2000 UTC (19 years, 1 month ago) by monnier
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bring revisions from the vendor branch to the trunk
\section{Graphical Interface}
  All the major data structures and intermediate program states can be
  viewed graphically using 
    \externhref{http://www.Informatik.Uni-Bremen.DE/~davinci/}{\begin{color}{red}daVinci\end{color}} and
    \externhref{http://www.cs.uni-sb.de/RW/users/sander/html/gsvcg1.html}{\begin{color}{red}vcg\end{color}}
  The following screen dumps are intended to represent the range of
  possibilities. Graphical tools like these are an indispensible
  debugging aid. Each of the dumps below were taken when generating
  code for the \begin{color}{red}mandelbrot\end{color} on the HPPA
  architecture. It will be necessary to make netscape fill the size of
  the screen to view these easily. Even though some of these graphs
  look quite complex, daVinci has several \emph{navigational} modes
  that allow walking to successors, or predecessors, or navigating
  through a scaled down map of the graph. The navigational view is
shown as another window, and the view into the graph that is being
displayed is usually outlined in \begin{color}{blue}blue\end{color}.

  \begin{description}
   \item[\href{graphics/mandelbrot-opt.gif}{Control Flowgraph after Optimization:}] Each basic block is shown with its dynamic profile and
    code before and after a specific optimization. This view
    saves having to pour through pages of assembly code listings -- 
    a tedious and frustrating activity.
   \item[\href{graphics/mandelbrot-ssa.gif}{SSA form:}]
     The generated flow graph is converted to SSA form which
makes many code improvement optimizations easy and efficient.
   \item[\href{graphics/mandelbrot-ddg.gif}{Data Dependency Graph}]
         A graphical view of the data dependency graph and the various
kinds of dependencies decorating the edges, provides a useful clue to
why instructions got rearranged the way they did. The navigational
view helps to control the complexity in the display.
  \end{description}

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