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11 Commits

Author SHA1 Message Date
Igor Laevsky
7782f60123 [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

llvm-svn: 317883
 2017-11-10 12:19:08 +00:00
Matt Morehouse
5a545d0e4d [llvm-demangle-fuzzer] Add a fuzz target for ItaniumDemangler. 
Patch By: hctim

Reviewers: morehouse, bogner

Reviewed By: bogner

Subscribers: bogner, kcc, llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D38855

llvm-svn: 315716
 2017-10-13 17:35:37 +00:00
Justin Bogner
78b714b721 docs: Improve wording on building for fuzzing 
The original sentence didn't really make sense.

Patch by Vedant Kumar. Thanks!

llvm-svn: 315676
 2017-10-13 06:29:09 +00:00
Justin Bogner
1be2a2a669 docs: Improve the docs about llvm-isel-fuzzer on OSS Fuzz 
llvm-svn: 315651
 2017-10-13 00:27:35 +00:00
Matt Morehouse
e184e29f2e [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

llvm-svn: 315647
 2017-10-13 00:18:32 +00:00
Justin Bogner
51ab92de46 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.

llvm-svn: 315557
 2017-10-12 04:35:32 +00:00
Hans Wennborg
a5e07fa459 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.

llvm-svn: 315554
 2017-10-12 03:32:09 +00:00
Justin Bogner
9cca6813f6 docs: Add some links to OSS Fuzz 
I'd left a couple of stray links here in a previous commit rather than
writing a paragraph.

llvm-svn: 315550
 2017-10-12 02:28:26 +00:00
Justin Bogner
13d15036b8 docs: Try to fix sphinx build 
llvm-svn: 315546
 2017-10-12 02:04:39 +00:00
Justin Bogner
2b300def19 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.

llvm-svn: 315545
 2017-10-12 01:57:49 +00:00
Justin Bogner
b9249fcac2 docs: Add some information about Fuzzing LLVM itself 
This splits some content out of the libFuzzer docs and adds a fair
amount of detail about the fuzzers in LLVM.

llvm-svn: 315544
 2017-10-12 01:44:24 +00:00