Commit Graph

15 Commits

Author SHA1 Message Date
Igor Laevsky d209ff9814 [FuzzMutate] Only generate loads and stores to the first class sized types
Differential Revision: https://reviews.llvm.org/D41109

llvm-svn: 320573
2017-12-13 11:49:04 +00:00
Igor Laevsky f39a29265c [FuzzMutate] Avoid zero sized aggregates
Differential Revision: https://reviews.llvm.org/D41110

llvm-svn: 320572
2017-12-13 11:47:35 +00:00
Igor Laevsky 541f9707a5 [FuzzMutate] Correctly split landingpad blocks
Differential Revision: https://reviews.llvm.org/D41112

llvm-svn: 320571
2017-12-13 11:45:53 +00:00
Igor Laevsky 76b36d3a7f [FuzzMutate] Correctly insert sinks and sources around invoke instructions
Differential Revision: https://reviews.llvm.org/D40840

llvm-svn: 320136
2017-12-08 08:53:16 +00:00
Igor Laevsky e8a3475b89 [FuzzMutate] Allow only sized pointers for the GEP instruction
Differential Revision: https://reviews.llvm.org/D40837

llvm-svn: 320032
2017-12-07 11:10:11 +00:00
Igor Laevsky 33031926b6 [FuzzMutate] Correctly handle vector types in the insertvalue operation
Differential Revision: https://reviews.llvm.org/D40397

llvm-svn: 319442
2017-11-30 15:31:13 +00:00
Igor Laevsky 65902db279 [FuzzMutate] Don't use index operands as sinks
Differential Revision: https://reviews.llvm.org/D40396

llvm-svn: 319441
2017-11-30 15:29:16 +00:00
Igor Laevsky 48147d012b [FuzzMutate] Pick correct index for the insertvalue instruction
Differential Revision: https://reviews.llvm.org/D40395

llvm-svn: 319440
2017-11-30 15:26:48 +00:00
Igor Laevsky faacdf8d54 [FuzzMutate] Don't create load as a new source if it doesn't match with the descriptor
Differential Revision: https://reviews.llvm.org/D40394

llvm-svn: 319439
2017-11-30 15:24:41 +00:00
Igor Laevsky 444afc82c0 [FuzzMutate] Don't crash when we can't remove instruction from empty function
Differential Revision: https://reviews.llvm.org/D40393

llvm-svn: 319438
2017-11-30 15:07:38 +00:00
Justin Bogner 7d449d31a4 Re-apply "Introduce FuzzMutate library"
Same as r311392 with some fixes for library dependencies. Thanks to
Chapuni for helping work those out!

Original commit message:

This introduces the FuzzMutate library, which provides structured
fuzzing for LLVM IR, as described in my EuroLLVM 2017 talk. Most of
the basic mutators to inject and delete IR are provided, with support
for most basic operations.

llvm-svn: 311402
2017-08-21 22:57:06 +00:00
Justin Bogner 6e39755d84 Revert "Re-apply "Introduce FuzzMutate library""
The dependencies for the new library seem to be misconfigured on some
linux configs:

  http://bb.pgr.jp/builders/llvm-i686-linux-RA/builds/5435/steps/build_all/logs/stdio

This reverts r311392.

llvm-svn: 311393
2017-08-21 22:28:47 +00:00
Justin Bogner f5c8736482 Re-apply "Introduce FuzzMutate library"
Redo r311356 with a fix to avoid std::uniform_int_distribution<bool>.
The bool specialization is undefined according to the standard, even
though libc++ seems to have it.

Original commit message:

This introduces the FuzzMutate library, which provides structured
fuzzing for LLVM IR, as described in my [EuroLLVM 2017 talk][1]. Most
of the basic mutators to inject and delete IR are provided, with
support for most basic operations.

llvm-svn: 311392
2017-08-21 22:25:04 +00:00
Justin Bogner b5fb3b56d7 Revert "Introduce FuzzMutate library"
Looks like this fails to build with libstdc++.

This reverts r311356

llvm-svn: 311358
2017-08-21 17:57:12 +00:00
Justin Bogner 0233637085 Introduce FuzzMutate library
This introduces the FuzzMutate library, which provides structured
fuzzing for LLVM IR, as described in my [EuroLLVM 2017 talk][1]. Most
of the basic mutators to inject and delete IR are provided, with
support for most basic operations.

I will follow up with the instruction selection fuzzer, which is
implemented in terms of this library.

[1]: http://llvm.org/devmtg/2017-03//2017/02/20/accepted-sessions.html#2

llvm-svn: 311356
2017-08-21 17:44:36 +00:00