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Improve description of -emit-llvm. 

llvm-svn: 52238
This commit is contained in:
Dale Johannesen 2008-06-12 17:04:09 +00:00
parent bf29ca681c
commit b50a845d4e
1 changed files with 8 additions and 17 deletions
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llvm/docs/CommandGuide/llvmgcc.pod
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@ -15,12 +15,14 @@ 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.
B<-emit-llvm> and B<-c> options are given then it will generate LLVM bitcode files
instead. If B<-emit-llvm> and B<-S> are 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.
number of gcc's extensions to the C programming language. See the gcc
documentation for details.
=head1 OPTIONS
@ -30,18 +32,6 @@ number of gcc's extensions to the C programming language.
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>.
@ -63,8 +53,9 @@ be a bitcode library.
=item B<-emit-llvm>
Make the output be LLVM bitcode (or assembly) instead of native object (or
assembly).
Make the output be LLVM bitcode (with B<-c>) or assembly (with B<-s>) instead
of native object (or assembly). If B<-emit-llvm> is given without either B<-c>
or B<-S> it has no effect.
=back