Re: #pragma GCC unroll support

[Mike Stump <mikestump@comcast.net>]

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I missed including the documentation patch in the last set.  :-(  Here it is:


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Index: extend.texi
===================================================================
--- extend.texi	(revision 220084)
+++ extend.texi	(working copy)
@@ -17881,6 +17881,17 @@ void ignore_vec_dep (int *a, int k, int
 @}
 @end smallexample
 
+@table @code
+@item #pragma GCC unroll @var{"n"}
+@cindex pragma GCC unroll @var{"n"}
+
+With this pragma, the programmer informs the optimizer how many times
+a loop should be unrolled.  A 0 or 1 informs the compiler to not
+perform any loop unrolling.  The pragma must be immediately before
+@samp{#pragma ivdep} or a @code{for}, @code{while} or @code{do} loop
+and applies only to the loop that follows.
+
+@end table
 
 @node Unnamed Fields
 @section Unnamed struct/union fields within structs/unions