Adds a return statement in the body of a randomly-chosen function.
The return value is a randomly-chosen identifier or literal from
the WGSL shader.
Fixes: tint:1115.
Change-Id: Icdc4ff669cda343244e158ce791b4085fd52f7b9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/61781
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Alastair Donaldson <afdx@google.com>
Commit-Queue: Alastair Donaldson <afdx@google.com>
Random indices were being generated in a manner that assumed the upper
bound to a Random::GetUInt call was inclusive. Also, GetUInt64 was
being used needlessly when GetUInt32 would suffice. This change
addresses both issues.
Fixes https://crbug.com/1250904
Change-Id: I9ad8e5beb3b52bcb867aeb745dec520c251cba60
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/64744
Auto-Submit: Alastair Donaldson <afdx@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Alastair Donaldson <afdx@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
BUG=tint:1098
Change-Id: I84931804515487d931bbbb5f0d5239d03ca76dfc
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63300
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Alastair Donaldson <afdx@google.com>
Changes various fuzz targets so that the target back-end language (HLSL,
MSL, SPIR-V or WGSL) is no longer passed as a command line argument, but
instead baked into the fuzzer's binary. This avoids a problem whereby a
ClusterFuzz bug reproducer does not use the required back-end command
line argument.
Change-Id: I64402a23391ca0f24c9d1ffd2aa2f218cc7106b1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63163
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Alastair Donaldson <afdx@google.com>
This CL adjusts the scripts to be able to run AST and regex
fuzzer unit tests in Kokoro. Only clang is supported for now.
Change-Id: Ibc9ebb9cf0dc40f47317abf88875aa738811919d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/61642
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Vasyl Teliman <vasniktel@gmail.com>
Fixed: tint:1104
Change-Id: I4ea3aa283c1c4b5e55f507dbc104b21c8bedb63b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/61521
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
Kokoro: James Price <jrprice@google.com>
a value in the set {INT_MAX, INT_MIN, -1 or 0}.
A mutation that replaces the value of a randomly-chosen integer with a value
in the set {INT_MAX, INT_MIN, -1, 0}.
Fixes: tint:1093.
Change-Id: I5ec69e1813785760ed6e7b06d0cbd9c481f69ade
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60920
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Alastair Donaldson <afdx@google.com>
Commit-Queue: Alastair Donaldson <afdx@google.com>
Mutates a WGSL-like string by replacing a randomly-selected identifier
with a different randomly-selected identifier.
Change-Id: Iecf45ad2800677cf3609b30d415520e5f2a05ba0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60561
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Alastair Donaldson <afdx@google.com>
Commit-Queue: Alastair Donaldson <afdx@google.com>
Changes the interval boundaries to exclude the first delimiter
that encloses a region.
Change-Id: Ia9186e584d9038b4220cad11d418fa9881e51e8d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60346
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Alastair Donaldson <afdx@google.com>
Commit-Queue: Alastair Donaldson <afdx@google.com>
Adds two transformations, one that deletes a random region enclosed
by a given delimiter and another one that duplicates a region by
inserting it at a position of the WGSL code after a delimiter.
Fixes: tint:1072.
Fixes: tint:1073.
Change-Id: Icb10a7f16a783d5eb8f75a48c4015eb87ea1d174
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60200
Reviewed-by: Alastair Donaldson <afdx@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Alastair Donaldson <afdx@google.com>
Allows the tint regex fuzzer to be built using gn, so that it can be
deployed on ClusterFuzz.
Fixes: tint:1075
Change-Id: I88f8bd0eefe3044483b66784cc32feebcdc63928
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60202
Auto-Submit: Alastair Donaldson <afdx@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Alastair Donaldson <afdx@google.com>
A fuzzer that mutates a WGSL code by finding two regions enclosed by
semicolons and swapping them randomly.
Change-Id: I5b14eb21fd2924227d05ac516f806c6e2efa6198
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/58395
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Alastair Donaldson <afdx@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Alastair Donaldson <afdx@google.com>
egj
Alastair Donaldson
Ryan Harrison
Vasyl Teliman