From e686c6586cc0497b0ccedec88b5835dac34c9628 Mon Sep 17 00:00:00 2001
From: dorit <dorit@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 28 Feb 2006 07:41:47 +0000
Subject: [PATCH] PR tree-optimization/26419 * doc/invoke.texi
(ftree-vectorizer-verbose): Add information on values of n.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111516 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 6 ++++++
gcc/doc/invoke.texi | 25 ++++++++++++++++++++++---
2 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1efd3a6cf10b..7e43a1597768 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2006-02-28 Dorit Nuzman <dorit@il.ibm.com>
+
+ PR tree-optimization/26419
+ * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
+ values of n.
+
2006-02-27 Zack Weinberg <zackw@panix.com>
* doc/md.texi: Fix typo in previous change.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 60aaaf707446..1c4f90922d97 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -4203,9 +4203,28 @@ Enable all the available tree dumps with the flags provided in this option.
@item -ftree-vectorizer-verbose=@var{n}
@opindex ftree-vectorizer-verbose
This option controls the amount of debugging output the vectorizer prints.
-This information is written to standard error, unless @option{-fdump-tree-all}
-or @option{-fdump-tree-vect} is specified, in which case it is output to the
-usual dump listing file, @file{.vect}.
+This information is written to standard error, unless
+@option{-fdump-tree-all} or @option{-fdump-tree-vect} is specified,
+in which case it is output to the usual dump listing file, @file{.vect}.
+For @var{n}=0 no diagnostic information is reported.
+If @var{n}=1 the vectorizer reports each loop that got vectorized,
+and the total number of loops that got vectorized.
+If @var{n}=2 the vectorizer also reports non-vectorized loops that passed
+the first analysis phase (vect_analyze_loop_form) - i.e. countable,
+inner-most, single-bb, single-entry/exit loops. This is the same verbosity
+level that @option{-fdump-tree-vect-stats} uses.
+Higher verbosity levels mean either more information dumped for each
+reported loop, or same amount of information reported for more loops:
+If @var{n}=3, alignment related information is added to the reports.
+If @var{n}=4, data-references related information (e.g. memory dependences,
+memory access-patterns) is added to the reports.
+If @var{n}=5, the vectorizer reports also non-vectorized inner-most loops
+that did not pass the first analysis phase (i.e. may not be countable, or
+may have complicated control-flow).
+If @var{n}=6, the vectorizer reports also non-vectorized nested loops.
+For @var{n}=7, all the information the vectorizer generates during its
+analysis and transformation is reported. This is the same verbosity level
+that @option{-fdump-tree-vect-details} uses.
@item -frandom-seed=@var{string}
@opindex frandom-string
--
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