\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
+\usepackage{lmodern}
\usepackage{listings}
\usepackage{hyperref}
+\usepackage{xspace}
+\newcommand\PIPS{PIPS\xspace}
-\title{PIPS - List of code transformations}
+
+\title{\PIPS~--- List of code transformations}
\begin{document}
-\chapter{List of Pips transformations}
+\chapter{Summary}
+
+\section{SGuelton}
+
+\begin{itemize}
+% memory allocation alteration
+\item scalar renaming
+% loop transformations
+\item loop unrolling
+\item loop fusion
+\item loop tiling
+\item loop rerolling
+\item loop interchange
+\item loop normalization
+% inter procedural transformations
+\item inlining
+% basic bloc transformations
+\item forward substitution
+% dead code removal
+\item constant propagation
+\item dead code elimination
+
+% ??
+\item array linearization
+\item common subexpression elimination
+\item directive generation
+\item flatten code
+\item goto elimination
+\item instruction selection
+\item invariant code motion
+\item iteration clamping
+\item loop unswitching
+\item memory footprint reduction
+\item n adress code generation
+\item outlining
+\item parallelism detection
+\item parallelism extraction
+\item privatization
+\item reduction detection
+\item redundant load-store elimination
+\item split update operator
+\item statement isolation
+\item strengh reduction
+\end{itemize}
+
+
+\section{Teraops}
+
+\begin{itemize}
+% memory allocation alteration
+\item scalar renaming
+\item scalar/array expansion
+\item scalar/array privatization
+\item scalarization
+\item variable copying
+% loop transformations
+\item index set splitting
+\item loop peeling
+\item loop unrolling
+\item loop rerolling
+\item full loop unrolling
+\item idiom recognition
+\item unswitching
+\item loop fusion
+\item loop fission/loop distribution
+\item loop normalization
+\item unimodular loop transformation/hyperplane method
+\item loop interchange
+\item loop reversal
+\item loop skewing
+\item non-unimodular loop transformation
+\item strip-mining (loop sectionning)
+\item loop coalescing/loop collapsing
+\item loop tiling
+\item loop parallelization
+\item loop vectorization
+\item loop invariant code motion
+\item software pipelining
+\item locality increazing
+% inter procedural transformations
+\item loop embedding/loop jamming
+\item procedure inlining
+\item procedure cloning
+% basic bloc transformations
+\item node splitting
+\item forward expression substitution
+\item induction variable substitution
+\item if-conversion
+\item statement reordering
+\item expression optimization
+\item partial redundancy elimination
+% dead code removal
+\item unreachable code
+\item semantically uneachable code
+\item if and loop elimination
+\item use-def elimination
+\item constant propagation
+\end{itemize}
+
+\chapter{List of \PIPS transformations}
\section{Memory allocation alteration}
+\begin{description}
+
+\item[scalar renaming]{is the process of renaming scalar variables to
+ suppress false data dependencies.}
+
+\item[privatization]{is the process of detecting variables that are
+ private to a loop body, i.e.\ written first, then read.}
+
+\end{description}
+
+
\section{Loop transformations}
+\begin{description}
+
+\item[loop unrolling]{
+ is a loop transformation.
+ Unrolling a loop by a factor of \(n\) consists in the substitution of a loop
+ body by itself, replicated \(n\) times. A prelude and/or postlude are
+ added to preserve the number of iteration.}
+
+\item[loop fusion]{
+ is a loop transformation that replaces two loops by a single loops whose
+ body is the concatenation of the bodies of the two initial loops.}
+
+\item[loop tiling]{
+ is a loop nest transformation that changes the loop execution order
+ through a partitions of the iteration space into
+ chunks, so that the iteration is performed over each chunk and in the
+ chunks.}
+
+\item[loop interchange]{is a loop transformation that permutes two
+ loops from a loop nest.}
+
+\item[loop unswitching]{is a loop transformation that replaces a
+ loop containing a test independent from the loop execution by a test
+ containing the loop without the test in both true and false branch.}
+
+\item[loop normalization]{is a loop transformation that changes
+ the loop initial increment value or the loop range to enforce certain values,
+ generally~1.}
+
+\end{description}
+
\section{Inter-procedural transformations}
\section{Base blocs transformations}
\begin{description}
-\item[loop unrolling]{
- is a loop transformation. Unrolling a loop by a factor of $n$ consists in the substitution of a loop
- body by itself, replicated $n$ times. A prelude and/or postlude are
- added to preserve the number of iteration.}
+
\item[inlining]{
is a function transformation. Inlining a function
is the process of replacing a reference read in an
expression by the latest expression affected to it.}
-\item[loop fusion]{
- is a loop transformation that replaces two loops by a single loops whose
- body is the concatenation of the bodies of the two initial loops.}
-\item[loop tiling]{
- is a loop nest transformation that changes the loop execution order
- through a partitions of the iteration space into
- chunks, so that the iteration is performed over each chunk and in the
- chunks.}
+
+
\item[reduction detection]{
is an analysis that identifies statements that perform a reduction over a
\item[goto elimination]{
is the process of replacing \texttt{goto} instructions by a hierarchical control flow
graph.}
+
\item[outlining]{
is the process of extracting part of a function body into a new function
and replacing it in the initial function by a function call.}
is the process of replacing similar expressions by a variable that holds
the result of their evaluation.}
-\item[loop interchange]{is a loop transformation that permutes two
- loops from a loop nest.}
-\item[loop unswitching]{is a loop transformation that replaces a
- loop containing a test independent from the loop execution by a test
- containing the loop without the test in both true and false branch.}
\item[statement isolation]{is the process of replacing all
variables referenced in a statement by newly declared variables. A
multidimensional array into unidimensional arrays, possibly with a
conversion from array to pointer.}
-\item[privatization]{is the process of detecting variables that
- are private to a loop body, i.e.\ written first, then read.}
-
-\item[loop normalization]{is a loop transformation that changes
- the loop initial increment value or the loop range to enforce certain values, generally
- 1.}
\item[iteration clamping]{is a loop transformation that extends
the loop range but guards the loop body with the former range.}
operator by its expanded form.}
\item[n address code generation]{is the process of splitting
- complex expression in simpler ones that take at most $n$ operands.}
+ complex expression in simpler ones that take at most \(n\) operands.}
\item[memory footprint reduction]{is the process of tiling a loop
to make sure the iteration over the tile has a memory footprint bounded by
them by their non-unrolled version.}
\end{description}
+
+\nocite{*}
+\bibliographystyle{alpha}
+\bibliography{refs}
+
+
\end{document}
projects / pipstransfo.git / blobdiff