Commit Graph

4 Commits

Author SHA1 Message Date
Alastair Donaldson
94d6002dc5
spirv-fuzz: Pass on validator options during shrinking (#3317)
Fixes an issue where the shrinker's validator options were not
actually being passed to the validator.
2020-04-27 14:25:46 +01:00
Alastair Donaldson
2fdea57d19
spirv-fuzz: Add validator options (#3254)
Allows several validator options to be passed to the fuzzer, to be
used when validation is invoked during fuzzing.
2020-04-02 14:37:59 +01:00
Alastair Donaldson
7275a71654
Allow validation during spirv-fuzz replay (#2873)
To aid in debugging issues in spirv-fuzz, this change adds an option whereby the SPIR-V module is validated after each transformation is applied during replay.  This can assist in finding a transformation that erroneously makes the module invalid, so that said transformation can be debugged.
2019-09-20 10:54:09 +01:00
Alastair Donaldson
b8ab80843f
Shrinker for spirv-fuzz (#2708)
Adds to spirv-fuzz the option to shrink a sequence of transformations
that lead to an interesting binary to be generated, to find a smaller
sub-sequence of transformations that still lead to an interesting (but
hopefully simpler) binary being generated. The notion of what counts
as "interesting" comes from a user-provided script, the
"interestingness function", similar to the way the spirv-reduce tool
works. The shrinking process will give up after a maximum number of
steps, which can be configured on the command line.

Tests for the combination of fuzzing and shrinking are included, using
a variety of interestingness functions.
2019-07-07 08:55:30 +01:00