3 files changed, 61 insertions, 1 deletions
diff --git a/docs/CommandGuide/bugpoint.pod b/docs/CommandGuide/bugpoint.pod
index 7afeea1..1870a0d 100644
--- a/docs/CommandGuide/bugpoint.pod
+++ b/docs/CommandGuide/bugpoint.pod
@@ -67,6 +67,10 @@ tool.
 Pass all arguments specified after B<--gcc-tool-args> to the invocation of
 B<gcc>.
 
+=item B<--opt-args> I<opt args>
+
+Pass all arguments specified after B<--opt-args> to the invocation of B<opt>.
+
 =item B<--disable-{dce,simplifycfg}>
 
 Do not run the specified passes to clean up and reduce the size of the test
diff --git a/docs/CommandGuide/index.html b/docs/CommandGuide/index.html
index 62cb776..67f0cfc 100644
--- a/docs/CommandGuide/index.html
+++ b/docs/CommandGuide/index.html
@@ -72,6 +72,9 @@ options) arguments to the tool you are interested in.</p>
 <li><a href="/cmds/llvmc.html"><b>llvmc</b></a> -
     a generic customizable compiler driver</li>
 
+<li><a href="/cmds/llvm-diff.html"><b>llvm-diff</b></a> -
+    structurally compare two modules</li>
+
 </ul>
 
 </div>
@@ -148,7 +151,7 @@ options) arguments to the tool you are interested in.</p>
   src="http://www.w3.org/Icons/valid-html401-blue" alt="Valid HTML 4.01"></a>
 
   <a href="http://llvm.org">LLVM Compiler Infrastructure</a><br>
-  Last modified: $Date: 2010-05-11 18:47:42 +0200 (Tue, 11 May 2010) $
+  Last modified: $Date: 2010-09-08 01:32:02 +0200 (Wed, 08 Sep 2010) $
 </address>
 
 </body>
diff --git a/docs/CommandGuide/llvm-diff.pod b/docs/CommandGuide/llvm-diff.pod
new file mode 100644
index 0000000..c8cfdb3
--- /dev/null
+++ b/docs/CommandGuide/llvm-diff.pod
@@ -0,0 +1,53 @@
+=pod
+
+=head1 NAME
+
+llvm-diff - LLVM structural 'diff'
+
+=head1 SYNOPSIS
+
+B<llvm-diff> [I<options>] I<module 1> I<module 2> [I<global name ...>]
+
+=head1 DESCRIPTION
+
+B<llvm-diff> compares the structure of two LLVM modules, primarily
+focusing on differences in function definitions.  Insignificant
+differences, such as changes in the ordering of globals or in the
+names of local values, are ignored.
+
+An input module will be interpreted as an assembly file if its name
+ends in '.ll';  otherwise it will be read in as a bitcode file.
+
+If a list of global names is given, just the values with those names
+are compared; otherwise, all global values are compared, and
+diagnostics are produced for globals which only appear in one module
+or the other.
+
+B<llvm-diff> compares two functions by comparing their basic blocks,
+beginning with the entry blocks.  If the terminators seem to match,
+then the corresponding successors are compared; otherwise they are
+ignored.  This algorithm is very sensitive to changes in control flow,
+which tend to stop any downstream changes from being detected.
+
+B<llvm-diff> is intended as a debugging tool for writers of LLVM
+passes and frontends.  It does not have a stable output format.
+
+=head1 EXIT STATUS
+
+If B<llvm-diff> finds no differences between the modules, it will exit
+with 0 and produce no output.  Otherwise it will exit with a non-zero
+value.
+
+=head1 BUGS
+
+Many important differences, like changes in linkage or function
+attributes, are not diagnosed.
+
+Changes in memory behavior (for example, coalescing loads) can cause
+massive detected differences in blocks.
+
+=head1 AUTHORS
+
+Maintained by the LLVM Team (L<http://llvm.org>).
+
+=cut