5 lli - directly execute programs from LLVM bitcode
9 B<lli> [I<options>] [I<filename>] [I<program args>]
13 B<lli> directly executes programs in LLVM bitcode format. It takes a program
14 in LLVM bitcode format and executes it using a just-in-time compiler, if one is
15 available for the current architecture, or an interpreter. B<lli> takes all of
16 the same code generator options as L<llc|llc>, but they are only effective when
17 B<lli> is using the just-in-time compiler.
19 If I<filename> is not specified, then B<lli> reads the LLVM bitcode for the
20 program from standard input.
22 The optional I<args> specified on the command line are passed to the program as
31 Print a summary of command line options.
35 Print statistics from the code-generation passes. This is only meaningful for
36 the just-in-time compiler, at present.
40 Record the amount of time needed for each code-generation pass and print it to
43 =item B<-mtriple>=I<target triple>
45 Override the target triple specified in the input bitcode file with the
46 specified string. This may result in a crash if you pick an
47 architecture which is not compatible with the current system.
49 =item B<-march>=I<arch>
51 Specify the architecture for which to generate assembly, overriding the target
52 encoded in the bitcode file. See the output of B<llc --help> for a list of
53 valid architectures. By default this is inferred from the target triple or
54 autodetected to the current architecture.
56 =item B<-mcpu>=I<cpuname>
58 Specify a specific chip in the current architecture to generate code for.
59 By default this is inferred from the target triple and autodetected to
60 the current architecture. For a list of available CPUs, use:
61 B<llvm-as E<lt> /dev/null | llc -march=xyz -mcpu=help>
63 =item B<-mattr>=I<a1,+a2,-a3,...>
65 Override or control specific attributes of the target, such as whether SIMD
66 operations are enabled or not. The default set of attributes is set by the
67 current CPU. For a list of available attributes, use:
68 B<llvm-as E<lt> /dev/null | llc -march=xyz -mattr=help>
70 =item B<-fake-argv0>=I<executable>
72 Override the C<argv[0]> value passed into the executing program.
74 =item B<-force-interpreter>=I<{false,true}>
76 If set to true, use the interpreter even if a just-in-time compiler is available
77 for this architecture. Defaults to false.
79 =item B<-load>=I<puginfilename>
81 Causes B<lli> to load the plugin (shared object) named I<pluginfilename> and use
86 Causes B<lli> to generate software floating point library calls instead of
87 equivalent hardware instructions.
93 If B<lli> fails to load the program, it will exit with an exit code of 1.
94 Otherwise, it will return the exit code of the program it executes.
102 Maintained by the LLVM Team (L<http://llvm.org>).