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Document -mcpu -mattr -triple

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24731 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2005-12-16 05:18:53 +00:00
parent 3015e6061c
commit 4f501bf322
2 changed files with 45 additions and 18 deletions
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36
docs/CommandGuide/llc.pod
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@ -46,11 +46,31 @@ Print a summary of command line options.
Overwrite output files. By default, B<llc> will refuse to overwrite Overwrite output files. By default, B<llc> will refuse to overwrite
an output file which already exists. an output file which already exists.
=item B<-triple>=I<target triple>
Override the target triple specified in the input bytecode file with the
specified string.
=item B<-march>=I<arch> =item B<-march>=I<arch>
Specify the architecture for which to generate assembly, overriding the target Specify the architecture for which to generate assembly, overriding the target
encoded in the bytecode file. See the output of B<llc --help> for a list of encoded in the bytecode file. See the output of B<llc --help> for a list of
valid architectures. valid architectures. By default this is inferred from the target triple or
autodetected to the current architecture.
=item B<-mcpu>=I<cpuname>
Specify a specific chip in the current architecture to generate code for.
By default this is inferred from the target triple and autodetected to
the current architecture. For a list of available CPUs, use:
B<llvm-as E<lt> /dev/null | llc -march=xyz -mcpu=help>
=item B<-mattr>=I<a1,+a2,-a3,...>
Override or control specific attributes of the target, such as whether SIMD
operations are enabled or not. The default set of attributes is set by the
current CPU. For a list of available attributes, use:
B<llvm-as E<lt> /dev/null | llc -march=xyz -mattr=help>
=item B<--disable-fp-elim> =item B<--disable-fp-elim>
@ -155,20 +175,6 @@ syntax.
=back =back
=head2 SPARCV9-specific Options
=over
=item B<--disable-peephole>
Disable peephole optimization pass.
=item B<--disable-sched>
Disable local scheduling pass.
=back
=head1 EXIT STATUS =head1 EXIT STATUS
If B<llc> succeeds, it will exit with 0. Otherwise, if an error occurs, If B<llc> succeeds, it will exit with 0. Otherwise, if an error occurs,

27
docs/CommandGuide/lli.pod
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@ -40,11 +40,32 @@ the just-in-time compiler, at present.
Record the amount of time needed for each code-generation pass and print it to Record the amount of time needed for each code-generation pass and print it to
standard error. standard error.
=item B<-triple>=I<target triple>
Override the target triple specified in the input bytecode file with the
specified string. This may result in a crash if you pick an
architecture which is not compatible with the current system.
=item B<-march>=I<arch> =item B<-march>=I<arch>
Use the specified non-default architecture arch when selecting a code generator Specify the architecture for which to generate assembly, overriding the target
for the just-in-time compiler. This may result in a crash if you pick an encoded in the bytecode file. See the output of B<llc --help> for a list of
architecture which is not compatible with the hardware you are running B<lli> on. valid architectures. By default this is inferred from the target triple or
autodetected to the current architecture.
=item B<-mcpu>=I<cpuname>
Specify a specific chip in the current architecture to generate code for.
By default this is inferred from the target triple and autodetected to
the current architecture. For a list of available CPUs, use:
B<llvm-as E<lt> /dev/null | llc -march=xyz -mcpu=help>
=item B<-mattr>=I<a1,+a2,-a3,...>
Override or control specific attributes of the target, such as whether SIMD
operations are enabled or not. The default set of attributes is set by the
current CPU. For a list of available attributes, use:
B<llvm-as E<lt> /dev/null | llc -march=xyz -mattr=help>
=item B<-force-interpreter>=I<{false,true}> =item B<-force-interpreter>=I<{false,true}>