X-Git-Url: https://scm.cri.mines-paristech.fr/git/pipstransfo.git/blobdiff_plain/06f75b6a5ef8d367188514ab4c0c8b41e17327ef..6e28a30da02870e986ad5ad2130b66153b5239df:/pipstransfo.tex?ds=sidebyside diff --git a/pipstransfo.tex b/pipstransfo.tex index ebd608a..f24434a 100644 --- a/pipstransfo.tex +++ b/pipstransfo.tex @@ -7,9 +7,12 @@ \usepackage{listings} \usepackage{hyperref} +\usepackage{xspace} +\def\PIPS{PIPS\xspace} -\title{PIPS~--- List of code transformations} + +\title{\PIPS~--- List of code transformations} @@ -20,47 +23,56 @@ \section{SGuelton} \begin{itemize} +% memory allocation alteration +\item scalar renaming +% loop transformations \item loop unrolling -\item inlining -\item forward substitution \item loop fusion \item loop tiling -\item reduction detection -\item parallelism detection -\item parallelism extraction -\item directive generation -\item constant propagation -\item instruction selection -\item goto elimination -\item outlining -\item common subexpression elimination +\item loop rerolling \item loop interchange -\item loop unszitching -\item statement isolation +\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 privatization -\item loop normalization -\item iteration clamping +\item common subexpression elimination +\item directive generation \item flatten code -\item strengh reduction -\item split update operator -\item n adress code generation +\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 invariant code motion -\item scalar renaming -\item loop rerolling +\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 @@ -84,9 +96,11 @@ \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 @@ -94,6 +108,7 @@ \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 @@ -101,7 +116,7 @@ \item constant propagation \end{itemize} -\chapter{List of Pips transformations} +\chapter{List of \PIPS transformations} \section{Memory allocation alteration} @@ -121,7 +136,7 @@ \begin{description} \item[loop unrolling]{ - is a loop transformation. + 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.} @@ -144,7 +159,7 @@ 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, + the loop initial increment value or the loop range to enforce certain values, generally~1.} \end{description}