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Renamed opt_share to opt_merge

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Clifford Wolf 2016-03-31 08:52:49 +02:00
parent 1d0f0d668a
commit ec93680bd5
8 changed files with 28 additions and 28 deletions
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6
manual/CHAPTER_Optimize.tex
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@ -16,13 +16,13 @@ passes that each perform a simple optimization:
\item Once at the beginning of {\tt opt}:
\begin{itemize}
\item {\tt opt\_expr}
\item {\tt opt\_share -nomux}
\item {\tt opt\_merge -nomux}
\end{itemize}
\item Repeat until result is stable:
\begin{itemize}
\item {\tt opt\_muxtree}
\item {\tt opt\_reduce}
\item {\tt opt\_share}
\item {\tt opt\_merge}
\item {\tt opt\_rmdff}
\item {\tt opt\_clean}
\item {\tt opt\_expr}
@ -130,7 +130,7 @@ This pass identifies unused signals and cells and removes them from the design.
creates an \B{unused\_bits} attribute on wires with unused bits. This attribute can be
used for debugging or by other optimization passes.
\subsection{The opt\_share pass}
\subsection{The opt\_merge pass}
This pass performs trivial resource sharing. This means that this pass identifies cells
with identical inputs and replaces them with a single instance of the cell.

4
manual/CHAPTER_Overview.tex
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@ -489,7 +489,7 @@ select.cc}, {\tt show.cc}, \dots) and a couple of other small utility libraries.
This directory contains a subdirectory for each pass or group of passes. For example as
of this writing the directory {\tt passes/opt/} contains the code for seven
passes: {\tt opt}, {\tt opt\_expr}, {\tt opt\_muxtree}, {\tt opt\_reduce},
{\tt opt\_rmdff}, {\tt opt\_rmunused} and {\tt opt\_share}.
{\tt opt\_rmdff}, {\tt opt\_rmunused} and {\tt opt\_merge}.
\item {\tt techlibs/} \\
This directory contains simulation models and standard implementations for the
@ -513,7 +513,7 @@ Yosys. So it is not needed to add additional commands to a central list of comma
\end{sloppypar}
Good starting points for reading example source code to learn how to write passes
are {\tt passes/opt/opt\_rmdff.cc} and {\tt passes/opt/opt\_share.cc}.
are {\tt passes/opt/opt\_rmdff.cc} and {\tt passes/opt/opt\_merge.cc}.
See the top-level README file for a quick {\it Getting Started} guide and build
instructions. The Yosys build is based solely on Makefiles.

4
manual/PRESENTATION_ExSyn.tex
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@ -145,12 +145,12 @@ is a macro command that calls other commands:
\begin{lstlisting}[xleftmargin=0.5cm, basicstyle=\ttfamily\fontsize{8pt}{10pt}\selectfont, language=ys]
opt_expr # const folding and simple expression rewriting
opt_share -nomux # merging identical cells
opt_merge -nomux # merging identical cells
do
opt_muxtree # remove never-active branches from multiplexer tree
opt_reduce # consolidate trees of boolean ops to reduce functions
opt_share # merging identical cells
opt_merge # merging identical cells
opt_rmdff # remove/simplify registers with constant inputs
opt_clean # remove unused objects (cells, wires) from design
opt_expr # const folding and simple expression rewriting