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Documented bugpoint --compile-custom --compile-command.

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I've used it a few times to reduce unit tests and gotten one request for information on it. It's not easy to use correctly because bugpoint doesn't tell you when you're doing it wrong.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129507 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2011-04-14 05:05:36 +00:00
parent df2ef9015f
commit b57b06647e
1 changed files with 16 additions and 2 deletions
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14
docs/CommandGuide/bugpoint.pod
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@ -147,6 +147,20 @@ This option defines the command to use with the B<--run-custom> and
B<--safe-custom> options to execute the bitcode testcase. This can
be useful for cross-compilation.
=item B<--compile-command> I<command>
This option defines the command to use with the B<--compile-custom>
option to compile the bitcode testcase. This can be useful for
testing compiler output without running any link or execute stages. To
generate a reduced unit test, you may add CHECK directives to the
testcase and pass the name of a compile-command script in this form:
llc "$@"
not FileCheck [bugpoint input file].ll < bugpoint-test-program.s
This script will "fail" as long as FileCheck passes. So the result
will be the minimum bitcode that passes FileCheck.
=item B<--safe-path> I<path>
This option defines the path to the command to execute with the