13 Commits

Author SHA1 Message Date
Igor Laevsky
7724d6bcaf [llvm-opt-fuzzer] Add irce to the fuzzing options
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327969 91177308-0d34-0410-b5e6-96231b3b80d8
2018-03-20 11:32:13 +00:00
Igor Laevsky
de603ec82d [llvm-opt-fuzzer] Add another pack of passes for continuous fuzzing
Differential Revision: https://reviews.llvm.org/D43384



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325487 91177308-0d34-0410-b5e6-96231b3b80d8
2018-02-19 11:57:07 +00:00
Rafael Espindola
06d6207c1c Pass a reference to a module to the bitcode writer.
This simplifies most callers as they are already using references or
std::unique_ptr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325155 91177308-0d34-0410-b5e6-96231b3b80d8
2018-02-14 19:11:32 +00:00
Igor Laevsky
a32887991d [llvm-opt-fuzzer] Avoid adding incorrect inputs to the fuzzer corpus
Differential Revision: https://reviews.llvm.org/D42414



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@324225 91177308-0d34-0410-b5e6-96231b3b80d8
2018-02-05 11:05:47 +00:00
Igor Laevsky
20b5be1d09 [llvm-opt-fuzzer] Add couple of popular passes
Differential Revision: https://reviews.llvm.org/D42410



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@323314 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-24 09:57:17 +00:00
Igor Laevsky
1404e4cc81 [FuzzMutate] NFC. Move parseModule and writeModule from llvm-isel-fuzzer into FuzzMutate.
This is to be able to reuse them in the llvm-opt-fuzzer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318407 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16 15:23:08 +00:00
Igor Laevsky
089f886ad9 [llvm-opt-fuzzer] Introduce llvm-opt-fuzzer for fuzzing optimization passes
This change adds generic fuzzing tools capable of running libFuzzer tests on
any optimization pass or combination of them.

Differential Revision: https://reviews.llvm.org/D39555



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317883 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-10 12:19:08 +00:00
Justin Bogner
6ec40b1040 FuzzMutate: Fix arch parsing in FuzzerCLI
The right way to parse arch names is by creating a triple. This was
using getArchTypeForLLVMName before, which doesn't really do the right
thing here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315965 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-17 02:39:40 +00:00
Matt Morehouse
5cb6ac0fdb [llvm-isel-fuzzer] Use "--" as separator rather than '='.
Summary: OSS-Fuzz doesn't support '=' in filenames.

Reviewers: bogner, kcc

Reviewed By: kcc

Subscribers: javed.absar, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D38866

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315647 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-13 00:18:32 +00:00
Justin Bogner
58658afbec Re-commit "llvm-isel-fuzzer: Handle a subset of backend flags in the exec name"
Here we add a secondary option parser to llvm-isel-fuzzer (and provide
it for use with other fuzzers). With this, you can copy the fuzzer to
a name like llvm-isel-fuzzer=aarch64-gisel for a fuzzer that fuzzer
AArch64 with GlobalISel enabled, or fuzzer=x86_64 to fuzz x86, with no
flags required. This should be useful for running these in OSS-Fuzz.

Note that this handrolls a subset of cl::opts to recognize, rather
than embedding a complete command parser for argv[0]. If we find we
really need the flexibility of handling arbitrary options at some
point we can rethink this.

This re-applies 315545 using "=" instead of ":" as a separator for
arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315557 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12 04:35:32 +00:00
Hans Wennborg
fba3ac1b76 Revert r315545 "llvm-isel-fuzzer: Handle a subset of backend flags in the executable name"
It broke some tests on Windows:

Failing Tests (4):
    LLVM :: tools/llvm-isel-fuzzer/execname-options.ll
    LLVM :: tools/llvm-isel-fuzzer/missing-triple.ll
    LLVM :: tools/llvm-isel-fuzzer/x86-empty-bc.ll
    LLVM :: tools/llvm-isel-fuzzer/x86-empty.ll

> llvm-isel-fuzzer: Handle a subset of backend flags in the executable name
>
> Here we add a secondary option parser to llvm-isel-fuzzer (and provide
> it for use with other fuzzers). With this, you can copy the fuzzer to
> a name like llvm-isel-fuzzer:aarch64-gisel for a fuzzer that fuzzer
> AArch64 with GlobalISel enabled, or fuzzer:x86_64 to fuzz x86, with no
> flags required. This should be useful for running these in OSS-Fuzz.
>
> Note that this handrolls a subset of cl::opts to recognize, rather
> than embedding a complete command parser for argv[0]. If we find we
> really need the flexibility of handling arbitrary options at some
> point we can rethink this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315554 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12 03:32:09 +00:00
Justin Bogner
58e4a84347 llvm-isel-fuzzer: Handle a subset of backend flags in the executable name
Here we add a secondary option parser to llvm-isel-fuzzer (and provide
it for use with other fuzzers). With this, you can copy the fuzzer to
a name like llvm-isel-fuzzer:aarch64-gisel for a fuzzer that fuzzer
AArch64 with GlobalISel enabled, or fuzzer:x86_64 to fuzz x86, with no
flags required. This should be useful for running these in OSS-Fuzz.

Note that this handrolls a subset of cl::opts to recognize, rather
than embedding a complete command parser for argv[0]. If we find we
really need the flexibility of handling arbitrary options at some
point we can rethink this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315545 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12 01:57:49 +00:00
Justin Bogner
16edf9bff8 Move some CLI utils out of llvm-isel-fuzzer and into the library
FuzzMutate might not be the best place for these, but it makes more
sense than an entirely new library for now. This will make setting up
fuzz targets with consistent CLI handling easier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312425 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-02 23:43:04 +00:00