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invoke.texi (fipa-cp, [...]): Add documentation. 

2007-12-03  Razya Ladelsky <razya@il.ibm.com>

    * doc/invoke.texi (fipa-cp, fipa-matrix-reorg): Add documentation.

From-SVN: r130580
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Razya Ladelsky 2007-12-03 11:16:36 +00:00 committed by Razya Ladelsky
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@ -1,3 +1,8 @@
2007-12-03 Razya Ladelsky <razya@il.ibm.com>
* doc/invoke.texi (fipa-cp, fipa-matrix-reorg): Add documentation.
2007-12-03 Jakub Jelinek <jakub@redhat.com>
PR middle-end/34317

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gcc/doc/invoke.texi
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@ -328,7 +328,8 @@ Objective-C and Objective-C++ Dialects}.
-ffunction-sections -fgcse -fgcse-after-reload -fgcse-las -fgcse-lm @gol
-fgcse-sm -fif-conversion -fif-conversion2 -finline-functions @gol
-finline-functions-called-once -finline-limit=@var{n} @gol
-finline-small-functions -fipa-pta -fipa-pure-const -fipa-reference @gol
-finline-small-functions -fipa-cp -fipa-marix-reorg -fipa-pta @gol
-fipa-pure-const -fipa-reference @gol
-fipa-type-escape -fivopts -fkeep-inline-functions -fkeep-static-consts @gol
-fmerge-all-constants -fmerge-constants -fmodulo-sched @gol
-fmodulo-sched-allow-regmoves -fmove-loop-invariants -fmudflap @gol
@ -5715,6 +5716,29 @@ Enabled by default at @option{-O} and higher.
@opindex fipa-pta
Perform interprocedural pointer analysis.
@item -fipa-cp
@opindex fipa-cp
Perform interprocedural constant propagation.
This optimization analyzes the program to determine when values passed
to functions are constants and then optimizes accordingly.
This optimization can substantially increase performance
if the application has constants passed to functions, but
because this optimization can create multiple copies of functions,
it may significantly increase code size.
@item -fipa-matrix-reorg
@opindex fipa-matrix-reorg
Perform matrix flattening and transposing.
Matrix flattening tries to replace a m-dimensional matrix
with its equivalent n-dimensional matrix, where n < m.
This reduces the level of indirection needed for accessing the elements
of the matrix. The second optimization is matrix transposing that
attemps to change the order of the matrix's dimensions in order to
improve cache locality.
Both optimizations need fwhole-program flag.
Transposing is enabled only if profiling information is avaliable.
@item -ftree-sink
@opindex ftree-sink
Perform forward store motion on trees. This flag is