It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CommandGuide/llvmgcc.pod b/docs/CommandGuide/llvmgcc.pod
new file mode 100644
index 0000000..0b2b156
--- /dev/null
+++ b/docs/CommandGuide/llvmgcc.pod
@@ -0,0 +1,85 @@
+=pod
+
+=head1 NAME
+
+llvm-gcc - LLVM C front-end
+
+=head1 SYNOPSIS
+
+B<llvm-gcc> [I<options>] I<filename>
+
+=head1 DESCRIPTION
+
+The B<llvm-gcc> command is the LLVM C front end. It is a modified
+version of gcc that compiles C/ObjC programs into native objects, LLVM
+bitcode or LLVM assembly language, depending upon the options.
+
+By default, B<llvm-gcc> compiles to native objects just like GCC does. If the
+B<-emit-llvm> option is given then it will generate LLVM bitcode files instead.
+If B<-S> (assembly) is also given, then it will generate LLVM assembly.
+
+Being derived from the GNU Compiler Collection, B<llvm-gcc> has many
+of gcc's features and accepts most of gcc's options. It handles a
+number of gcc's extensions to the C programming language.
+
+=head1 OPTIONS
+
+=over
+
+=item B<--help>
+
+Print a summary of command line options.
+
+=item B<-S>
+
+Do not generate an LLVM bitcode file. Rather, compile the source
+file into an LLVM assembly language file.
+
+=item B<-c>
+
+Do not generate a linked executable. Rather, compile the source
+file into an LLVM bitcode file. This bitcode file can then be
+linked with other bitcode files later on to generate a full LLVM
+executable.
+
+=item B<-o> I<filename>
+
+Specify the output file to be I<filename>.
+
+=item B<-I> I<directory>
+
+Add a directory to the header file search path. This option can be
+repeated.
+
+=item B<-L> I<directory>
+
+Add I<directory> to the library search path. This option can be
+repeated.
+
+=item B<-l>I<name>
+
+Link in the library libI<name>.[bc | a | so]. This library should
+be a bitcode library.
+
+=item B<-emit-llvm>
+
+Make the output be LLVM bitcode (or assembly) instead of native object (or
+assembly).
+
+=back
+
+=head1 EXIT STATUS
+
+If B<llvm-gcc> succeeds, it will exit with 0. Otherwise, if an error
+occurs, it will exit with a non-zero value.
+
+=head1 SEE ALSO
+
+L<llvm-g++|llvmgxx>
+
+=head1 AUTHORS
+
+Maintained by the LLVM Team (L<http://llvm.org>).
+
+=cut
+