Commit Graph

10 Commits

Author SHA1 Message Date
Alastair Donaldson
11cd875ed8
spirv-fuzz: Use reference in CanMakeSynonymOf (#4401)
The instruction parameter of CanMakeSynonymOf is an input parameter
that should never be null, so a const reference is a more appropriate
type than a const pointer.
2021-07-27 13:18:36 +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
3602287858
spirv-fuzz: Do not add synonyms involving irrelevant ids (#3890)
Fixes #3886.
2020-10-08 22:34:39 +01:00
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
2945963cce
spirv-fuzz: Consider all ids from dead blocks irrelevant (#3795)
This PR modifies the FactManager methods IdIsIrrelevant and GetIrrelevantIds so
that an id is always considered irrelevant if it comes from a dead block.

Fixes #3733.
2020-09-18 11:45:02 +01:00
Vasyl Teliman
bc2f78b7d9
spirv-fuzz: Fix usages of irrelevant constants (#3566)
Part of #3177.
2020-07-22 19:03:58 +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
dc59b4b075
spirv-fuzz: vector shuffle transformation (#3015)
Inroduces a new transformation that adds a vector shuffle instruction
to the module, with associated facts about how the result vector of
the shuffle relates to the input vectors.

A fuzzer pass to add such transformations is not yet in place.
2019-11-06 17:11:54 +00:00