llvm-project/llvm/tools/llvm-opt-fuzzer
Florian Hahn 166d40f2ed
[FuzzMutate] Add mutator to modify instruction flags.
This patch adds a new InstModificationIRStrategy to mutate flags/options
for instructions. For example, it may add or remove nuw/nsw flags from
add, mul, sub, shl instructions or change the predicate for icmp
instructions.

Subtle changes such as those mentioned above should lead to a more
interesting range of inputs. The presence or absence of overflow flags
can expose subtle bugs, for example.

Reviewed By: bogner

Differential Revision: https://reviews.llvm.org/D94905
2021-01-23 19:05:20 +00:00
..
CMakeLists.txt
DummyOptFuzzer.cpp
llvm-opt-fuzzer.cpp [FuzzMutate] Add mutator to modify instruction flags. 2021-01-23 19:05:20 +00:00