Commit Graph

12 Commits

Author SHA1 Message Date
Shiyu Liu
033768c24b
spirv-fuzz: TransformationWrapVectorSynonym that rewrites scalar operations using vectors (#4376)
Adds a new transformation that rewrites a scalar operation (like
OpFAdd, opISub) as an equivalent vector operation, adding a synonym
between the scalar result and an appropriate component of the vector
result.

Fixes #4195.
2021-07-20 11:01:20 +01:00
Vasyl Teliman
43cfa9bc1d
spirv-fuzz: Add persistent state to the fuzzer (#4137)
Adds persistent state to the fuzzer so that it can be used as a custom
mutator for mutation-based fuzzing.
2021-03-03 15:34:53 +00:00
Alastair Donaldson
02195a029c
spirv-fuzz: Fixes to pass management (#4011) 2020-11-04 10:45:53 +00:00
André Perez
abe2eff36f
spirv-fuzz: Add expand vector reduction transformation (#3869)
The following implementations are introduced:

- Transformation and fuzzer pass for expanding vector reduction.
- Unit tests to cover the instructions with different vector sizes.

Fixes #3768.
2020-10-23 14:59:08 +01:00
Vasyl Teliman
895dafcc1d
spirv-fuzz: Add FuzzerPassAddCompositeExtract (#3904)
Fixes #3806.
2020-10-23 14:49:50 +01:00
Alastair Donaldson
fc8264854c
spirv-fuzz: Replace dead-block terminators with OpKill etc. (#3882)
Fixes #3615.
2020-10-06 15:59:05 +01:00
Vasyl Teliman
63cc22d645
spirv-fuzz: TransformationPropagateInstructionDown (#3692)
Fixes #3691.
2020-10-06 13:38:19 +01:00
Alastair Donaldson
74a711a76d
spirv-fuzz: Only recommend passes when a pass had an effect (#3863)
Fixes #3817.
2020-10-02 04:48:39 +01:00
Stefano Milizia
fc7860e2db
spirv-fuzz: Merge the return instructions in a function (#3838)
This PR introduces TransformationMergeFunctionReturns, which changes
a function so that it only has one reachable return statement.

Fixes #3655.
2020-10-02 04:45:44 +01:00
Vasyl Teliman
615fbe6cbc
spirv-fuzz: TransformationWrapRegionInSelection (#3674)
Fixes #3675.
2020-10-01 09:54:10 +01:00
Stefano Milizia
67525bded1
spirv-fuzz: Create synonym of int constant using a loop (#3790)
This transformation, given a constant integer (scalar or vector) C,
constants I and S of compatible type and scalar 32-bit integer constant
N, such that C = I - S*N, adds a loop which subtracts S from I, N
times, creating a synonym for C.

The related fuzzer pass randomly chooses constants to which to add
synonyms using this transformation, and the location where they should
be added.

Fixes #3616.
2020-09-23 14:10:02 +01:00
Alastair Donaldson
60ce96e2ff
spirv-fuzz: Add pass recommendations (#3757)
This change introduces various strategies for controlling the manner
in which fuzzer passes are applied repeatedly, including infrastructure
to allow fuzzer passes to be recommended based on which passes ran
previously.
2020-09-18 15:51:35 +01:00