From a9a7a9a2498c257114058e94aded2c89cf913c6e Mon Sep 17 00:00:00 2001
From: Sebastian Pop <sebastian.pop@amd.com>
Date: Mon, 30 Mar 2009 02:04:50 +0000
Subject: [PATCH] invoke.texi (-floop-interchange, [...]): Document dependences
on PPL, CLooG and Graphite.
2009-03-30 Sebastian Pop <sebastian.pop@amd.com>
* doc/invoke.texi (-floop-interchange, -floop-strip-mine,
-floop-block): Document dependences on PPL, CLooG and Graphite.
From-SVN: r145273
---
gcc/ChangeLog | 5 +++++
gcc/doc/invoke.texi | 13 ++++++++++---
2 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index db553e9e007a..f791327a7dfc 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2009-03-30 Sebastian Pop <sebastian.pop@amd.com>
+
+ * doc/invoke.texi (-floop-interchange, -floop-strip-mine,
+ -floop-block): Document dependences on PPL, CLooG and Graphite.
+
2009-03-30 Joseph Myers <joseph@codesourcery.com>
PR rtl-optimization/323
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 19ac3083a659..ebf14d2081a0 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -6230,7 +6230,9 @@ because in Fortran, the elements of an array are stored in memory
contiguously by column, and the original loop iterates over rows,
potentially creating at each access a cache miss. This optimization
applies to all the languages supported by GCC and is not limited to
-Fortran.
+Fortran. To use this code transformation, GCC has to be configured
+with @option{--with-ppl} and @option{--with-cloog} to enable the
+Graphite loop transformation infrastructure.
@item -floop-strip-mine
Perform loop strip mining transformations on loops. Strip mining
@@ -6251,7 +6253,9 @@ DO II = 1, N, 4
ENDDO
@end smallexample
This optimization applies to all the languages supported by GCC and is
-not limited to Fortran.
+not limited to Fortran. To use this code transformation, GCC has to
+be configured with @option{--with-ppl} and @option{--with-cloog} to
+enable the Graphite loop transformation infrastructure.
@item -floop-block
Perform loop blocking transformations on loops. Blocking strip mines
@@ -6279,7 +6283,10 @@ ENDDO
which can be beneficial when @code{M} is larger than the caches,
because the innermost loop will iterate over a smaller amount of data
that can be kept in the caches. This optimization applies to all the
-languages supported by GCC and is not limited to Fortran.
+languages supported by GCC and is not limited to Fortran. To use this
+code transformation, GCC has to be configured with @option{--with-ppl}
+and @option{--with-cloog} to enable the Graphite loop transformation
+infrastructure.
@item -fcheck-data-deps
@opindex fcheck-data-deps
--
GitLab