some transformations in FI's pdf are advertised as not supported by PIPS

[pipstransfo.git] / pipstransfo.tex

diff --git a/pipstransfo.tex b/pipstransfo.tex
index ebd608a..b3186bc 100644 (file)
--- a/pipstransfo.tex
+++ b/pipstransfo.tex
@@ -7,9 +7,12 @@
 
 \usepackage{listings}
 \usepackage{hyperref}
 
 \usepackage{listings}
 \usepackage{hyperref}

+\usepackage{xspace}

 
 

+\newcommand\PIPS{PIPS\xspace}

 
 

-\title{PIPS~--- List of code transformations}
+
+\title{\PIPS~--- List of code transformations}

 
 
 
 
 
 


@@ -19,81 +22,95 @@
 \chapter{Summary}
 
 \section{SGuelton}
 \chapter{Summary}
 
 \section{SGuelton}

+

 \begin{itemize}
 \begin{itemize}

+% memory allocation alteration
+\item scalar renaming
+% loop transformations

 \item loop unrolling
 \item loop unrolling

-\item inlining
-\item forward substitution

 \item loop fusion
 \item loop tiling
 \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 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 dead code elimination

+
+% ??

 \item array linearization
 \item array linearization

-\item privatization
-\item loop normalization
-\item iteration clamping
+\item common subexpression elimination
+\item directive generation

 \item flatten code
 \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 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 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}
 \end{itemize}
 
 
 \section{Teraops}

+

 \begin{itemize}
 \begin{itemize}

+% memory allocation alteration

 \item scalar renaming
 \item scalar/array expansion
 \item scalar/array privatization
 \item scalar renaming
 \item scalar/array expansion
 \item scalar/array privatization

-\item scalarization
-\item variable copying
-\item index set splitting
-\item loop peeling
+\item scalarization % according to .pdf, not supported by Pips
+\item variable copying % not supported by Pips
+% loop transformations
+\item index set splitting % not supported by Pips
+\item loop peeling % not supported by Pips

 \item loop unrolling
 \item loop unrolling

-\item loop rerolling
+\item loop rerolling % not supported by Pips

 \item full loop unrolling
 \item idiom recognition
 \item full loop unrolling
 \item idiom recognition

-\item unswitching
-\item loop fusion
+\item unswitching % not supported by Pips
+\item loop fusion % not supported by Pips

 \item loop fission/loop distribution
 \item loop normalization
 \item unimodular loop transformation/hyperplane method
 \item loop interchange
 \item loop fission/loop distribution
 \item loop normalization
 \item unimodular loop transformation/hyperplane method
 \item loop interchange

-\item loop reversal
+\item loop reversal % not supported by Pips

 \item loop skewing
 \item non-unimodular loop transformation
 \item strip-mining (loop sectionning)
 \item loop skewing
 \item non-unimodular loop transformation
 \item strip-mining (loop sectionning)

-\item loop coalescing/loop collapsing
+\item loop coalescing/loop collapsing % not supported by Pips

 \item loop tiling
 \item loop parallelization
 \item loop tiling
 \item loop parallelization

-\item loop vectorization
+\item loop vectorization % not supported by Pips

 \item loop invariant code motion
 \item loop invariant code motion

-\item software pipelining
+\item software pipelining % not supported by Pips

 \item locality increazing
 \item locality increazing

-\item loop embedding/loop jamming
-\item procedure inlining
+% interprocedural transformations
+\item loop embedding/loop jamming % not supported by Pips
+\item procedure inlining % not supported by Pips

 \item procedure cloning
 \item procedure cloning

+% basic bloc transformations

 \item node splitting
 \item forward expression substitution
 \item node splitting
 \item forward expression substitution

-\item induction variable substitution
+\item induction variable substitution % not supported by Pips

 \item if-conversion
 \item if-conversion

-\item statement reordering
+\item statement reordering % not supported by Pips

 \item expression optimization
 \item partial redundancy elimination
 \item expression optimization
 \item partial redundancy elimination

+% dead code removal

 \item unreachable code
 \item semantically uneachable code
 \item if and loop elimination
 \item unreachable code
 \item semantically uneachable code
 \item if and loop elimination


@@ -101,7 +118,7 @@
 \item constant propagation
 \end{itemize}
 
 \item constant propagation
 \end{itemize}
 

-\chapter{List of Pips transformations}
+\chapter{List of \PIPS transformations}

 
 \section{Memory allocation alteration}
 
 
 \section{Memory allocation alteration}
 


@@ -121,9 +138,9 @@
 \begin{description}
 
 \item[loop unrolling]{
 \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
+  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]{
   added to preserve the number of iteration.}
 
 \item[loop fusion]{


@@ -144,12 +161,12 @@
   containing the loop without the test in both true and false branch.}
 
 \item[loop normalization]{is a loop transformation that changes
   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}
 
   generally~1.}
 
 \end{description}
 

-\section{Inter-procedural transformations}
+\section{Interprocedural transformations}

 
 \section{Base blocs transformations}
 
 
 \section{Base blocs transformations}
 


@@ -201,6 +218,7 @@
 \item[goto elimination]{
   is the process of replacing \texttt{goto} instructions by a hierarchical control flow
   graph.}
 \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.}
 \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.}


@@ -239,7 +257,7 @@
   operator by its expanded form.}
 
 \item[n address code generation]{is the process of splitting
   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
 
 \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