Commit Graph

106 Commits

Author SHA1 Message Date
Ben Clayton
7403dfafd8
CMake: Add SPIRV_TOOLS_BUILD_STATIC flag (#3910)
If enabled the following targets will be created:

* `${SPIRV_TOOLS}-static` - `STATIC` library. Has full public symbol visibility.
* `${SPIRV_TOOLS}-shared` - `SHARED` library. Has default-hidden symbol visibility.
* `${SPIRV_TOOLS}`        - will alias to one of above, based on BUILD_SHARED_LIBS.

If disabled the following targets will be created:

* `${SPIRV_TOOLS}`        - either `STATIC` or `SHARED` based on the new `SPIRV_TOOLS_LIBRARY_TYPE` flag. Has full public symbol visibility.
* `${SPIRV_TOOLS}-shared` - `SHARED` library. Has default-hidden symbol visibility.

Defaults to `ON`, matching existing build behavior.

This flag can be used by package maintainers to ensure that all libraries are built as shared objects.
2020-10-29 09:25:26 -04:00
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
e022659922
spirv-fuzz: Wrap OpKill and similar in function calls (#3884)
Part of #3717.
2020-10-08 22:33:14 +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
65b2a9e814
spirv-fuzz: Transformation to add wrappers for OpKill and similar (#3881)
Part of #3717.
2020-10-06 12:07:56 +01:00
Alastair Donaldson
b920b620ad
spirv-fuzz: Integrate spirv-reduce with shrinker (#3849)
This extends shrinking so that spirv-reduce is employed to simplify
the functions that are added by TransformationAddFunction.
2020-10-02 04:53:12 +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
André Perez
e8ce4355ae
spirv-fuzz: Add bit instruction synonym transformation (#3775)
This PR implements part of the add bit instruction synonym transformation.
For now, the implementation covers the OpBitwiseOr, OpBitwiseXor and
OpBitwiseAnd cases.
2020-09-15 23:36:23 +01:00
Stefano Milizia
f62357e7b8
spirv-fuzz: Transformation to flatten conditional branch (#3667)
This transformation, given the header of a selection construct with
branching instruction OpBranchConditional, flattens it.
Side-effecting operations such as OpLoad, OpStore and OpFunctionCall
are enclosed within smaller conditionals.
It is applicable if the construct does not contain inner selection
constructs or loops, or atomic or barrier instructions.

The corresponding fuzzer pass looks for selection headers and
tries to flatten them.

Needed for the issue #3544, but it does not fix it completely.
2020-09-15 10:31:01 +01:00
Antoni Karpiński
244e6c1be6
spirv-fuzz: Add TransformationDuplicateRegionWithSelection (#3773)
Adds a transformation that inserts a conditional statement with a
boolean expression of arbitrary value and duplicates a given
single-entry, single-exit region, so that it is present in each
conditional branch and will be executed regardless of which branch will
be taken.

Fixes #3614.
2020-09-11 11:48:19 +01:00
Paul Thomson
2de7d3af0c
spirv-fuzz: Add SPIRV_FUZZ_PROTOC_COMMAND (#3789)
Add CMake option SPIRV_FUZZ_PROTOC_COMMAND for overriding the protoc
command. This is needed when cross-compiling, such as when building
for Android.
2020-09-10 08:32:48 +01:00
Paul Thomson
a715b1b405
Improve spirv-fuzz CMake code (#3781)
This change improves spirv-fuzz CMake code to be more compatible with other projects that might want to include spirv-fuzz as a sub-project.

* Add a CMake option for building spirv-fuzz. 
* We now check if protobuf targets are already available. 
* We no longer specify `-DGOOGLE_PROTOBUF_NO_RTTI -DGOOGLE_PROTOBUF_USE_UNALIGNED=0`; a newer version of protobuf does not require this. Note that we probably should have specified this for protobuf targets as well, but this is no longer needed. 
* Updated protobuf version in Kokoro scripts and README.md.
2020-09-09 09:56:32 +01:00
Stefano Milizia
fd05605bef
spirv-fuzz: Transformation to convert OpSelect to conditional branch (#3681)
This transformation takes an OpSelect instruction and replaces it with
a conditional branch, selecting the correct value using an OpPhi
instruction.

Fixes part of the issue #3544.
2020-09-03 10:19:02 +01:00
Stefano Milizia
788468408e
spirv-fuzz: Replace id in OpPhi coming from a dead predecessor (#3744)
This transformation takes the id of an OpPhi instruction, of a dead
predecessor of the block containing it and a replacement id of
available to use and of the same type as the OpPhi, and changes
the id in the OpPhi corresponding to the given predecessor.

For example, %id = OpPhi %type %v1 %p1 %v2 %p2
becomes %id = OpPhi %type %v3 %p1 %v2 %p2
if the transformation is given %id, %p1 and %v3, %p1 is a dead block,
%v3 is type type and it is available to use at the end of %p1.

The fuzzer pass randomly decides to apply the transformation to OpPhi
instructions for which at least one of the predecessors is dead

Fixes #3726.
2020-09-02 01:06:38 +01:00
Stefano Milizia
3daabd3212
spirv-fuzz: Transformation to replace the use of an irrelevant id (#3697)
A transformation that replaces the use of an irrelevant id with
another id of the same type.

The related fuzzer pass, for every use of an irrelevant id,
checks whether the id can be replaced in that use by another
id of the same type and randomly decides whether to replace
it.

Fixes #3503.
2020-09-01 16:28:04 +01:00
Vasyl Teliman
d7f078f27d
spirv-fuzz: TransformationMutatePointer (#3737)
Fixes #3624.
2020-09-01 12:45:13 +01:00
Stefano Milizia
08291a3a9e
spirv-fuzz: Create synonym via OpPhi and existing synonyms (#3701)
A transformation that adds new OpPhi instructions to blocks with >=1
predecessors, so that its value depends on previously-defined ids of
the right type, which are all synonymous. This instruction is also
recorded as synonymous to the others.

The related fuzzer pass still needs to be implemented.

Fixes #3592 .
2020-08-27 15:59:54 +01:00
Alastair Donaldson
9e26ae0455
spirv-fuzz: Overflow ids (#3734)
This change adds the notion of "overflow ids", which can be used
during shrinking to facilitate applying transformations that would
otherwise have become inapplicable due to earlier transformations
being removed.
2020-08-26 07:49:42 +01:00
Vasyl Teliman
230f363e6d
spirv-fuzz: Split the fact manager into multiple files (#3699)
Part of #3698.

This splits various components of the fact manager into multiple files.
2020-08-25 18:11:37 +01:00
André Perez
5adc5ae643
spirv-fuzz: Add inline function transformation (#3517)
Fixes #3505.
2020-08-25 17:28:23 +01:00
Antoni Karpiński
a711c594b8
spirv-fuzz: add FuzzerPassAddCompositeInserts (#3606)
Adds FuzzerPassAddCompositeInserts, which randomly adds new
OpCompositeInsert instructions. Each OpCompositeInsert instruction
yields a copy of an original composite with one subcomponent replaced
with an existing or newly added object. Synonym facts are added for the
unchanged components in the original and added composite, and for the
replaced subcomponent and the object, if possible.

Fixes #2859
2020-08-19 13:56:03 +01:00
Stefano Milizia
eade36db22
spirv-fuzz: Fuzzer pass to randomly apply loop preheaders (#3668)
This PR introduces FuzzerPassAddLoopPreheaders, which:
- Finds existing loop headers
- If they have no simple preheader (where simple means that the
  preheader itself is not a loop header), randomly decides whether
  to add one.

Fixes #3621.
2020-08-14 12:44:28 +01:00
Vasyl Teliman
b7056e7e03
spirv-fuzz: FuzzerPassPropagateInstructionsUp (#3478)
Given an instruction (that may use an OpPhi result from the same block as an input operand), try to clone the instruction into each predecessor block, replacing the input operand with the corresponding OpPhi input operand in each case, if necessary.

Fixes #3458.
2020-08-11 10:24:32 +01:00
Steven Perron
2990a21926
Avoid using /MP4 for clang on windows. (#3662) 2020-08-10 10:59:24 -04:00
Antoni Karpiński
7b2dd11dda
spirv-fuzz: TransformationReplaceAddSubMulWithCarryingExtended (#3598)
Replaces OpIAdd with OpIAddCarry, OpISub with OpISubBorrow, OpIMul with
OpUMulExtended or OpSMulExtended and stores the result into a fresh_id
representing a structure. Extracts the first element of the result into
the original result_id. This value is the same as the result of the
original instruction.

Fixes #3577
2020-08-06 17:30:34 +01:00
André Perez
6d7f34fbfe
spirv-fuzz: Add TransformationMakeVectorOperationDynamic (#3597)
Fixes #3588.
2020-08-06 15:50:18 +01:00
Vasyl Teliman
92a71657fc
spirv-fuzz: TransformationMoveInstructionDown (#3477)
Swaps an instruction with the next instruction in the block.

Fixes #3457.
2020-08-03 16:45:24 +01:00
Stefano Milizia
2aaa8653da
spirv-fuzz: Transformation to add loop preheader (#3599)
This PR introduces TransformationAddLoopPreheader, which, given
a loop header and enough fresh ids, adds a loop preheader, updating
all the references so that this new block is the only out-of-loop
predecessor of the header, which branches unconditionally to the
header.

See the discussion in #3095.
2020-07-30 20:18:19 +01:00
Stefano Milizia
96bcc82743
spirv-fuzz: Pass to replace int operands with ints of opposite signedness (#3612)
This PR introduces a new fuzzer pass, which:

- finds all integer vectors or constants
- finds or creates the corresponding constants with opposite
  signedness
- records such constants as synonyms of the first ones
- replaces the usages of the original constants with the new ones
  if allowed

Fixes #2677.
2020-07-30 19:48:29 +01:00
Ben Clayton
6aed7ffbc7
CMake: Enable building with BUILD_SHARED_LIBS=1 (#3490)
Rename the `${SPIRV_TOOLS}` target to `${SPIRV_TOOLS}-static` and alias `${SPIRV_TOOLS}` to either `${SPIRV_TOOLS}-static` or `${SPIRV_TOOLS}-shared` depending on `BUILD_SHARED_LIBS`.

Re-point all internal uses of `${SPIRV_TOOLS}` to `${SPIRV_TOOLS}-static`.

`${SPIRV_TOOLS}-static` is explicitly renamed to just `${SPIRV_TOOLS}` to ensure the name does not change from current behavior.

Build the `SPIRV-Tools-*` libraries as static, as this is what they always were.

Force the external targets `gmock` and `effcee` to be built statically. These either do not support being built as shared libraries, or require special flags.

Issue: #3482
2020-07-27 13:29:07 -04:00
Antoni Karpiński
8a5500656e
spirv-fuzz: adds TransformationReplaceLoadStoreWithCopyMemory (#3586)
Adds a transformation that takes a pair of instruction descriptors to
OpLoad and OpStore that have the same intermediate value and replaces
the OpStore with an equivalent OpCopyMemory.

Fixes #3353.
2020-07-27 15:17:04 +01:00
Antoni Karpiński
9dc1bfa313
spirv-fuzz: adds TransformationReplaceCopyMemoryWithLoadStore (#3575)
Adds a transformation that replaces instruction OpCopyMemory with
loading the source variable to an intermediate value and storing this
value into the target variable of the original OpCopyMemory instruction.

Fixes #3352
2020-07-23 15:14:20 +01:00
Antoni Karpiński
586a12b9d4
spirv-fuzz: adds TransformationReplaceCopyObjectWithStoreLoad (#3567)
Adds a transformation that replaces instruction OpCopyObject with
storing into a new variable and immediately loading this variable to
|result_id| of the original OpCopyObject instruction.

Fixes #3351.
2020-07-23 08:17:45 +01:00
Vasyl Teliman
fe9e5db890
spirv-fuzz: TransformationReplaceParamsWithStruct (#3455)
Fixes #3453.
2020-07-21 21:02:32 +01:00
Antoni Karpiński
0d8fe0fba0
spirv-fuzz: add TransformationAddRelaxedDecoration (#3545)
Add TransformationAddRelaxedDecoration, which adds the RelaxedPrecision decoration to ids of numeric instructions (those yielding 32-bit ints or floats) in dead blocks.

Fixes #3502
2020-07-20 13:13:07 +01:00
Vasyl Teliman
2fa735dc06
spirv-fuzz: Remove TransformationCopyObject (#3531)
Fixes #3509.
2020-07-15 17:37:19 +01:00
Stefano Milizia
f12c40f5a6
spirv-fuzz: Fuzzer pass to interchange zero-like constants (#3524)
This fuzzer pass:

For each zero-like constant, either finds the existing definition of
the corresponding toggled one (OpConstantNull becomes zero-valued
scalar OpConstant or vice versa) or creates a new one if it doesn't
exist and records that the two are synonyms

For each use of these constants, probabilistically decides whether to
change it with the corresponding toggled constant id (as described in
#3486 )

Only uses inside blocks of instructions are considered and not, for
example, in instructions declaring other constants.
2020-07-15 12:58:29 +01:00
Vasyl Teliman
40c3c1cace
spirv-fuzz: TransformationAddSynonyms (#3447)
Part of #3440.
2020-07-12 09:59:08 +01:00
Stefano Milizia
5f8cdd8b45
Implement transformation to record synonymous constants. (#3494)
Adds a fact-only transformation that records that two constants in the module are synonymous.
2020-07-10 14:02:14 +01:00
Vasyl Teliman
de56c34bd6
spirv-fuzz: TransformationReplaceParameterWithGlobal (#3434)
Fixes #3432.
2020-07-09 11:03:49 +01:00
André Perez
daa3b47ed4
spirv-fuzz: Add image sample unused components transformation (#3439)
Fixes #3375.
2020-07-08 17:07:04 +01:00
Vasyl Teliman
bd2a9ea852
spirv-fuzz: TransformationInvertComparisonOperator (#3475)
Part of #3440.
2020-07-03 17:37:32 +01:00
Vasyl Teliman
fba90d6b0a
spirv-fuzz: Add FuzzerPassAddCopyMemoryInstructions (#3391)
Fixes #3382.
2020-06-30 21:13:05 +01:00
Vasyl Teliman
ab10489a02
spirv-fuzz: Add one parameter at a time (#3469)
Fixes #3467.
Fixes #3468.
2020-06-30 15:20:27 +01:00
Vasyl Teliman
29ba53f2a2
spirv-fuzz: Implement FuzzerPassAddParameters (#3399)
Fixes #3384.
2020-06-23 17:40:44 +01:00