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Clean up this man page

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18724 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2004-12-09 21:16:40 +00:00
parent dbcd4f5dc7
commit 0c123df489
1 changed files with 31 additions and 64 deletions
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docs/CommandGuide/llc.pod
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@ -14,34 +14,9 @@ The B<llc> command compiles LLVM bytecode into assembly language for a
specified architecture. The assembly language output can then be passed through specified architecture. The assembly language output can then be passed through
a native assembler and linker to generate native code. a native assembler and linker to generate native code.
The choice of architecture for the output assembly code is determined as The choice of architecture for the output assembly code is automatically
follows, by attempting to satisfy each of the following rules in turn (first determined from the input bytecode file, unless a B<-m> option is used to override
one wins): the default.
=over
=item *
If the user has specified an architecture with the -m option, use that
architecture.
=item *
Examine the input LLVM bytecode file: if it is little endian and has a
pointer size of 32 bits, select the Intel IA-32 architecture. If it is big
endian and has a pointer size of 64 bits, select the SparcV9 architecture.
=item *
If B<llc> was compiled on an architecture for which it can generate code, select
the architecture upon which B<llc> was compiled.
=item *
Exit with an error message telling the user to specify the output
architecture explicitly.
=back
=head1 OPTIONS =head1 OPTIONS
@ -90,41 +65,31 @@ Emit C code, not assembly
=back =back
=item B<-enable-correct-eh-support>
Instruct the B<-lowerinvoke> pass to insert code for correct exception handling
support. This is expensive and is by default omitted for efficiency.
=item B<-help>
Print a summary of command line options.
=item B<-stats>
Print statistics recorded by code-generation passes.
=item B<-time-passes>
Record the amount of time needed for each pass and print a report to standard
error.
=back
=head2 Intel IA-32-specific Options
=over
=item B<--disable-fp-elim> =item B<--disable-fp-elim>
Disable frame pointer elimination optimization. Disable frame pointer elimination optimization.
=item B<--disable-pattern-isel> =item B<--enable-correct-eh-support>
Use the 'simple' X86 instruction selector (the default). Instruct the B<lowerinvoke> pass to insert code for correct exception handling
support. This is expensive and is by default omitted for efficiency.
=item B<--help>
Print a summary of command line options.
=item B<--stats>
Print statistics recorded by code-generation passes.
=item B<--time-passes>
Record the amount of time needed for each pass and print a report to standard
error.
=item B<--print-machineinstrs> =item B<--print-machineinstrs>
Print generated machine code. Print generated machine code between compilation phases (useful for debugging).
=item B<--regalloc>=I<allocator> =item B<--regalloc>=I<allocator>
@ -171,6 +136,17 @@ Local spiller
=back =back
=head2 Intel IA-32-specific Options
=over
=item B<--x86-asm-syntax=att|intel>
Specify whether to emit assembly code in AT&T syntax (the default) or intel
syntax.
=back
=head2 SPARCV9-specific Options =head2 SPARCV9-specific Options
=over =over
@ -183,15 +159,6 @@ Disable peephole optimization pass.
Disable local scheduling pass. Disable local scheduling pass.
=item B<--disable-strip>
The Sparc backend embeds the LLVM bytecode into the assembly output. This
option requests that symbol names be retained; by default, they are stripped out.
=item B<--enable-maps>
Emit LLVM-to-machine code mapping information into the assembly output.
=back =back
=head1 EXIT STATUS =head1 EXIT STATUS