Commit Graph

2742 Commits

Author SHA1 Message Date
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
43a5186011
spirv-fuzz: Compute interprocedural loop nesting depth of blocks (#3753)
This PR extends CallGraph with functions to return:

- a list of functions in lexicographical order, with respect to
  function calls
- the maximum loop nesting depth that a function can be called from
  (computed interprocedurally, e.g. if foo() calls bar() at depth 2
  and bar() calls baz() at depth 1, the maximum depth of baz() will
  be 3).
2020-09-01 12:23:58 +01:00
Jaebaek Seo
8a0ebd40f8
Correctly replace debug lexical scope of instruction (#3718)
When we update OpenCL.DebugInfo.100 lexical scopes e.g., DebugFunction,
we have to replace DebugScope of each instruction that uses the lexical
scope correctly.
2020-08-31 10:05:38 -04:00
Alastair Donaldson
f428aa39ca
spirv-fuzz: Remove opaque pointer design pattern (#3755)
There's no real need for Fuzzer, Replayer and Shrinker to use the
opaque pointer design pattern.  This change removes it, paving the way
for making some upcoming changes to Fuzzer easier.
2020-08-28 13:30:06 +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
Stefano Milizia
7e4948b2a5
Add LoopNestingDepth function to StructuredCFGAnalysis (#3754) 2020-08-27 08:34:46 -04:00
Alastair Donaldson
50cf38b8c9
spirv-fuzz: Do not make synonyms of void result ids (#3747)
Fixes #3746.
2020-08-27 09:39:20 +01:00
greg-lunarg
bceab9fab4
Do not register DebugFunction for functions optimized away. (#3749) 2020-08-26 23:25:43 -04:00
Jaebaek Seo
e02f178a71
Handle DebugScope in compact-ids pass (#3724)
We have to update OpenCL.DebugInfo.100 DebugScope for instructions if we
change its lexical scope or DebugInlinedAt.
2020-08-26 10:15:36 -04:00
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
greg-lunarg
2205254cfb
Fix DebugNoScope to not output InlinedAt operand. (#3748) 2020-08-25 23:27:10 -04:00
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
Vasyl Teliman
1341b58a86
spirv-fuzz: Fix MaybeGetZeroConstant (#3740)
Fixes #3739.
2020-08-25 09:50:00 +01:00
greg-lunarg
12df3cafee
Fix SSA-rewrite to remove DebugDeclare for variables without loads (#3719) 2020-08-24 15:33:01 -04:00
Steven Perron
3f8501de9e
Add undef for inlined void function (#3720)
It is possible that the result of a void function call is used.  In case
it is used, we need something that still defines its id after inlining.
We use an undef for that purpose.

Fixes https://github.com/KhronosGroup/SPIRV-Tools/issues/3704
2020-08-24 15:08:55 -04:00
André Perez
4dd122392f
spirv-fuzz: Add words instead of logical operands (#3728)
Fixes #3727.
2020-08-21 11:14:13 +01:00
Diego Novillo
b79773a35d
CCP should mark IR changed if it created new constants. (#3732)
CCP should mark IR changed if it created new constants.

This fixes #3636.

When CCP is simulating statements, it will sometimes successfully fold
an instruction, which laters switches to varying.  The initial fold of
the instruction may generate a new constant K.

The problem we were running into is when K never gets propagated to the
IR.  Its definition will still exist, so CCP should mark the IR modified
in this case.

In fixing this bug, I noticed that an existing test was suffering from
the same bug.  The change also makes PassTest::SinglePassRunAndMatch()
return the result from the pass, so that we can check that the pass
marks the IR modified in this case.
2020-08-20 16:48:11 -04:00
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
Antoni Karpiński
582c276d43
spirv-fuzz: Support pointer types in FuzzerPassAddParameters (#3627)
For FuzzerPassAddParameters, adds pointer types (that have the storage
class Function or Private) to the pool of available types for new
parameters. If there are no variables of the chosen pointer type, it
invokes TransformationAddLocalVariable / TransformationAddGlobalVariable
to add one.

Part of #3403
2020-08-19 11:18:47 +01:00
Jaebaek Seo
3434cb0b00
Let ADCE pass check DebugScope (#3703)
In the existing code, ADCE pass does not check DebugScope of an
instruction when it checks the users of each instruction, which results
in removing OpenCL.Debug.100 instructions that are only used by
DebugScope. This commit lets ADCE pass add DebugScope of an instruction
to the live instruction set when the instruction is added to the live
instruction set.
2020-08-18 09:33:20 -04:00
André Perez
ee7f0c882f
spirv-opt: Implement opt::Function::HasEarlyReturn function (#3711) 2020-08-18 09:31:24 -04:00
André Perez
e28436f2b8
spirv-fuzz: Check termination instructions when donating modules (#3710)
The FuzzerPassDonateModules was not checking if the function to donate had
a block with OpKill or OpUnreachable as its termination instruction.

Fixes #3709.
2020-08-17 23:30:07 +01:00
Jack Andersen
1023dd7a04
Fix -Wrange-loop-analysis warning (#3712) 2020-08-17 12:59:36 -04:00
André Perez
82f4bf128a
spirv-fuzz: Check header dominance when adding dead block (#3694)
`TransformationAddDeadBlock` did not check whether the existing block
(that will become a selection header) dominates its successor block (that
will become its merge block).

This change adds the check.

Fixes #3690.
2020-08-17 17:47:13 +01:00
Jaebaek Seo
b8de4f57e9
Allow DebugTypeTemplate for Type operand (#3702)
Some OpenCL.DebugInfo.100 instructions such as DebugGlobalVariable
and DebugLocalVariable have the Type operand. This commit allows them to
use DebugTypeTemplate for the Type operand.
2020-08-16 23:42:59 -04:00
Antoni Karpiński
c20995ef80
spirv-fuzz: Improve code coverage of tests (#3686)
Improves the code coverage of tests for the following transformations:

1. TransformationAddRelaxedDecoration
2. TransformationReplaceCopyMemoryWithLoadStore
3. TransformationReplaceCopyObjectWithStoreLoad
4. TransformationReplaceLoadStoreWithCopyMemory
5. TransformationReplaceAddSubMulWithCarryingExtended
2020-08-14 12:47:21 +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
72ea7bec4a
spirv-fuzz: Support identical predecessors in TransformationPropagateInstructionUp (#3689)
Support identical predecessors in TransformationPropagateInstructionUp.

A basic block may have multiple identical predecessors as follows:

%1 = OpLabel
OpSelectionMerge %2 None
OpBranchConditional %true %2 %2
%2 = OpLabel
...

This case wasn't supported before.
2020-08-14 12:29:36 +01:00
alan-baker
b4c4da3e76
Improve non-semantic instruction handling in the optimizer (#3693)
* No longer blindly add global non-semantic info instructions to global
  types and values
  * functions now have a list of non-semantic instructions that succeed
    them in the global scope
  * global non-semantic instructions go in global types and values if
    they appear before any function, otherwise they are attached to the
    immediate function predecessor in the module
* changed ADCE to use the function removal utility
* Modified EliminateFunction to have special handling for non-semantic
  instructions in the global scope
  * non-semantic instructions are moved to an earlier function (or full
    global set) if the function they are attached to is eliminated
  * Added IRContext::KillNonSemanticInfo to remove the tree of
    non-semantic instructions that use an instruction
  * this is used in function elimination
* There is still significant work in the optimizer to handle
  non-semantic instructions fully in the optimizer
2020-08-13 14:54:14 -04:00
Vasyl Teliman
948577c5df
Fix the bug (#3680) 2020-08-13 09:09:57 -04:00
André Perez
df859f77da
spirv-fuzz: Check integer and float width capabilities (#3670)
`TransformationAddTypeFloat` and `TransformationAddTypeInt` did not check whether the required capabilities were present when adding 16-bit, 64-bit, and 8-bit types.

This change adds these checks in the `IsApplicable` method of each transformation.

Fixes #3669.
2020-08-12 22:05:36 +01:00
André Perez
2641d33516
spirv-fuzz: consider additional access chain instructions (#3672)
`TransformationReplaceIdWithSynonym` is careful to avoid replacing id uses that index into a struct with synonyms because the indices must only be `OpConstant` instructions. However, the check only considered `OpAccessChain` instructions, even though the same restriction applies to `OpInBoundsAccessChain`, `OpPtrAccessChain`, etc. 

This change extends the check to include all access chain instructions.

Fixes #3671.
2020-08-12 21:58:53 +01:00
André Perez
5e5929455f
spirv-fuzz: Ignore specialization constants (#3664)
`FuzzerPassInterchangeSignednessOfIntegerOperands` and `FuzzerPassInterchangeZeroLikeConstants` both included specialization constants when trying to find integer constants with known values. However, this is incorrect behavior because we do not know the value of specialization constants. Furthermore, ConstantManager does not support them, and this led to crashes where we assumed we could look up specialization constants via the ConstantManager.

This change fixes both passes to ignore specialization constants.

Fixes #3663.
2020-08-12 18:59:47 +01:00
Vasyl Teliman
1435e427da
Fix the bug (#3683) 2020-08-12 13:00:41 -04:00
Vasyl Teliman
be099cde1f
spirv-fuzz: Fix width in FuzzerPassAddEquationInstructions (#3685)
Fixes FuzzerPassAddEquationInstructions to check whether certain int/float type widths are supported to avoid creating unsupported types.

Fixes #3669.
2020-08-12 16:39:23 +01:00
Jaebaek Seo
f0ca96d12c
Preserve debug info in dead-insert-elim pass (#3652)
When we determine the liveness of an insert, we have to ignore the debug
instruction (it must not have any impact on the decision).
2020-08-12 10:19:37 -04:00
Jaebaek Seo
0d629b903a
Validate more OpenCL.DebugInfo.100 instructions (#3684)
- DebugTypeTemplate
- DebugTypeTemplateParameter
- DebugGlobalVariable
- DebugInlinedAt
- DebugValue
2020-08-12 09:37:32 -04:00
alan-baker
13a65b1aee
Only validation locations for appropriate execution models (#3656)
Fixes #3653

* Only validate locations for fragment, vertex, geometry and
  tessellation shaders
2020-08-11 18:51:49 -04:00
André Perez
fd3cabd8b5
spirv-fuzz: Fix in operand type assertion (#3666)
spvtools::fuzz::MakeIdUseDescriptorFromUse asserts if the id use type is
SPV_OPERAND_TYPE_ID. The problem is that not all id types are covered by
this condition. The bug was found because the first operand of an OpControlBarrier
instruction has SPV_OPERAND_TYPE_SCOPE_ID as type. Therefore, to cover
all cases the spvIsInIdType function is used.

Fixes #3665.
2020-08-11 18:37:01 +01:00
André Perez
f505538677
spirv-opt: Add spvOpcodeIsAccessChain (#3682) 2020-08-11 11:21:36 -04:00
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
8e1380996d
Handle no index access chain in local access chain convert (#3678)
* Handle no index access chain in local access chain convert

Fixes #3643
2020-08-10 22:03:02 -04:00
Ryan Harrison
bdeeae78a9
Roll 2 dependencies (#3677)
Roll external/googletest/ a781fe29b..3af06fe16 (12 commits)

a781fe29bc...3af06fe166

$ git log a781fe29b..3af06fe16 --date=short --no-merges --format='%ad %ae %s'
2020-08-05 absl-team Googletest export
2020-08-03 absl-team Googletest export
2020-08-03 absl-team Googletest export
2020-08-05 zumix.cpp fix endif comment
2020-08-02 zumix.cpp fix tests
2020-07-29 franciscogthiesen Removing tiny-dnn from "Who is using.."
2020-07-28 absl-team Googletest export
2020-07-29 zumix.cpp fix GTEST_REMOVE_LEGACY_TEST_CASEAPI_ typo
2020-07-28 absl-team Googletest export
2020-07-26 ofats Googletest export
2020-07-19 jasjuang fix clang tidy modernize-use-equals-default warnings
2020-07-02 siliconearth Fix test failing when simple regex is used

Created with:
  roll-dep external/googletest

Roll external/spirv-headers/ 5538bf438..3fdabd0da (1 commit)

5538bf4386...3fdabd0da2

$ git log 5538bf438..3fdabd0da --date=short --no-merges --format='%ad %ae %s'
2020-08-03 44190824+mmerecki Reserve SPIR-V token range for upcoming Intel extensions. (#165)

Created with:
  roll-dep external/spirv-headers
2020-08-10 16:44:39 -04:00
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
André Perez
d29eac95aa
spirv-fuzz: iterate over blocks in replace linear algebra pass (#3654)
This PR changes the way FuzzerPassReplaceLinearAlgebraInstructions iterates over the module instructions. It avoids iterating over non-relevant instructions (globals, types, etc.).
2020-08-06 13:00:17 +01:00
Stefano Milizia
efc85ff661
spirv-fuzz: make outliner pass use additional transformations (#3604)
This PR changes FuzzerPassOutlineFunctions so that it uses some
transformation that make the TransformationOutlineFunction
transformation applicable in more cases. See the discussion in
#3095 for more details.

Fixes #3095.
2020-08-06 12:29:26 +01:00