Commit Graph

11 Commits

Author SHA1 Message Date
alan-baker
d35a78db57
Switch SPIRV-Tools to use spirv.hpp11 internally (#4981)
Fixes #4960

* Switches to using enum classes with an underlying type to avoid
  undefined behaviour
2022-11-04 17:27:10 -04:00
Shiyu Liu
26cdce984f
spirv-fuzz: add tests for full coverage of TransformationAccessChain (#4304)
Fixes #4286 by achieving full coverage of the transformation.
2021-06-02 17:46:56 +01:00
Alastair Donaldson
d0c73fcee1
spirv-fuzz: Optimize transformations (#4216)
Avoids blanket invalidation of analyses in several transformations,
instead updating the def-use manager and instruction to block mapping.
2021-03-26 10:22:06 +00:00
Alastair Donaldson
bed84792f9
spirv-fuzz: Call by value and move in transformations (#4208)
Adapts all transformation classes so that their protobuf message is
passed by value and then moved into the message_ field.
2021-03-23 13:31:44 +00:00
Alastair Donaldson
fcb22ecf0f
spirv-fuzz: Report fresh ids in transformations (#3856)
Adds a virtual method, GetFreshIds(), to Transformation. Every
transformation uses this to indicate which ids in its protobuf message
are fresh ids. This means that when replaying a sequence of
transformations the replayer can obtain a smallest id that is not in
use by the module already and that will not be used by any
transformation by necessity. Ids greater than or equal to this id
can be used as overflow ids.

Fixes #3851.
2020-09-29 22:12:49 +01:00
Vasyl Teliman
36185f8b09
spirv-fuzz: Move IRContext parameter into constructor (#3837)
This PR converts IRContext parameter in fact managers into a class field. Part of #3698.
2020-09-24 12:27:59 +01:00
Stefano Milizia
1e1c308ded
spirv-fuzz: Pass submanagers to other submanagers when necessary (#3796)
This PR changes the fact manager so that, when calling some of the
functions in submanagers, passes references to other submanagers if
necessary (e.g. to make consistency checks).

In particular:

- DataSynonymAndIdEquationFacts is passed to the AddFactIdIsIrrelevant
  function of IrrelevantValueFacts

- IrrelevantValueFacts is passed to the AddFact functions of
  DataSynonymAndIdEquationFacts

The IRContext is also passed when necessary and the calls to the
corresponding functions in FactManager were updated to be valid and
always use an updated context.

Fixes #3550.
2020-09-15 13:27:14 +01:00
Stefano Milizia
f8920bcfab
spirv-fuzz: Generalise transformation access chain (#3546)
This PR generalises TransformationAddAccessChain so that dynamic
indices for non-struct composites (with clamping to ensure that
accesses are in-bound) are allowed.

The transformation will add instructions to clamp any index to
a non-struct composite, regardless of whether it is a constant
or not.

Fixes #3179.
2020-07-27 11:28:12 +01:00
Stefano Milizia
de1ff50f28
spirv-fuzz: Assert false in IsApplicable method of TransformationAccessChain (#3528)
… if it is invalid (with null or undefined pointer).

In this case, assert false instead of returning false so that the fuzzer fails.

Fixes #3185.
2020-07-17 12:57:36 +01:00
Alastair Donaldson
8d4261bc44
spirv-fuzz: Introduce TransformationContext (#3272)
Some transformations (e.g. TransformationAddFunction) rely on running
the validator to decide whether the transformation is applicable.  A
recent change allowed spirv-fuzz to take validator options, to cater
for the case where a module should be considered valid under
particular conditions.  However, validation during the checking of
transformations had no access to these validator options.

This change introduced TransformationContext, which currently consists
of a fact manager and a set of validator options, but could in the
future have other fields corresponding to other objects that it is
useful to have access to when applying transformations.  Now, instead
of checking and applying transformations in the context of a
FactManager, a TransformationContext is used.  This gives access to
the fact manager as before, and also access to the validator options
when they are needed.
2020-04-02 15:54:46 +01:00
Alastair Donaldson
6c218ec60b
spirv-fuzz: Fuzzer pass that adds access chains (#3182)
This change adds a fuzzer pass that sprinkles access chain
instructions into a module at random. This allows other passes to
have a richer set of pointers available to them, in particular the
passes that add loads and stores.
2020-02-11 23:10:57 +00:00