Generate an OpSpecConstantComposite instruction decorated with the
WorkgroupSize builtin. Only support a single stage with an overridable
workgroup size.
Bug: tint:713
Change-Id: I139123c0af8326fcbd796cb2fc9d223882206e19
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51263
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Change the type of the values in an ast::WorkgroupDecoration to be
ast::Expression nodes, so that they can represent both
ast::ScalarExpression (literal) and ast::IdentifierExpression
(module-scope constant).
The Resolver processes these nodes to produce a uint32_t for the
default value on each dimension, and captures a reference to the
module-scope constant if it is overridable (which will soon be used by
the inspector and backends).
The WGSL parser now uses `primary_expression` to parse arguments to
workgroup_size.
Also added some WorkgroupSize() helpers to ProgramBuilder.
Bug: tint:713
Change-Id: I44b7b0021b925c84f25f65e26dc7da6b19ede508
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51262
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
This reverts commit 594075a2f0.
Reason for revert: This is not a complete solution. It does not cover assignment of variables of the same struct type, but of different access types. For example:
```
[[block]] struct S{ i : 32; };
var<storage> gr : [[access(read)]] S;
var<storage> gw : [[access(write)]] S;
fn f() {
var a : S;
a = gr;
gw = a;
}
```
With my CL, we currently generate invalid assignments because the new types of 'S' for 'gr' and 'gw' are now all different types. We would need to generate functions to assign between them.
In the end, we will drop this strategy, and instead, Dawn will be modified to not rely on names.
Original change's description:
> Add DuplicateStorageStruct transform
>
> This transform is currently required by Dawn for it's GLSL backend so
> that SPIRV-Cross does not end up renaming the structures internally,
> which it does to fix aliasing problems. We can remove this transform
> if/once Dawn using binding numbers rather than names for uniform/storage
> buffer data.
>
> Bug: tint:386
> Bug: tint:808
>
> CloneContext: allow insert before/after of a node marked for removal
> Change-Id: I3ff3b37bca62db07d5c759250dd4777e279b7a4f
> Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51403
> Commit-Queue: Ben Clayton <bclayton@google.com>
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Reviewed-by: Ben Clayton <bclayton@google.com>
TBR=bclayton@google.com,amaiorano@google.com,noreply+kokoro@google.com
Change-Id: I695347b0ffe8be23b9dc44885af378be56512406
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: tint:386
Bug: tint:808
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51500
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
This transform is currently required by Dawn for it's GLSL backend so
that SPIRV-Cross does not end up renaming the structures internally,
which it does to fix aliasing problems. We can remove this transform
if/once Dawn using binding numbers rather than names for uniform/storage
buffer data.
Bug: tint:386
Bug: tint:808
CloneContext: allow insert before/after of a node marked for removal
Change-Id: I3ff3b37bca62db07d5c759250dd4777e279b7a4f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51403
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Useful when making multiple out of source builds from the same source.
Also made it ignore only build folders from the root, in case there's
any "build*" subfolder in the tree.
Change-Id: I0140bb3aed73d2e88a6f1165f2b4c80fb99a8cf8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51141
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
This change implements pointers and references as described by the WGSL
specification change in https://github.com/gpuweb/gpuweb/pull/1569.
reader/spirv:
* Now emits address-of `&expr` and indirection `*expr` operators as
needed.
* As an identifier may now resolve to a pointer or reference type
depending on whether the declaration is a `var`, `let` or
parameter, `Function::identifier_values_` has been changed from
an ID set to an ID -> Type* map.
resolver:
* Now correctly resolves all expressions to either a value type,
reference type or pointer type.
* Validates pointer / reference rules on assignment, `var` and `let`
construction, and usage.
* Handles the address-of and indirection operators.
* No longer does any implicit loads of pointer types.
* Storage class validation is still TODO (crbug.com/tint/809)
writer/spirv:
* Correctly handles variables and expressions of pointer and
reference types, emitting OpLoads where necessary.
test:
* Lots of new test cases
Fixed: tint:727
Change-Id: I77d3281590e35e5a3122f5b74cdeb71a6fe51f74
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50740
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
The expected output is far from perfect, and the generated HLSL and MSL
isn't even validated yet, so may be incorrect.
However, by committing the generated output, we get clear examples of
the currently generated output of each backend. As we land fixes and
improvements to each backend, the presubmits will require us to update
the expected test output, and so code reviews will include diffs of
each backend's generated output.
Change-Id: I5c2a9e5b796d0ab75b3ec4c7f8ad00a0a2ab166f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51224
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
The test runner now recursively scans sub-directories.
Use this for sensibly structuring our test files.
test/bug/tint/###.[wgsl,spvasm] files refer to bugs filed at:
crbug.com/tint/###
Change-Id: I9b4d8d134c8494b0f48c8656f3bf694f76d5303f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51221
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
Rename:
* type() to StoreType()
* storage_class() to StorageClass()
Move away from snake_case methods in the semantic namespace.
Try to avoid generic 'type()' method names.
Also add an assertion to detect doubly nested references (these are
invalid).
Bug: tint:727
Change-Id: I975a3f1e5fbed7947cc2fc156fee892b282c63de
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51220
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Once the resolver correctly handles address-of and indirections,
the logic around these will be different enough that a parameterized
test no longer makes sense.
Bug: tint:727
Change-Id: I79c138b12bd6f49d9dbee02c62e594a9b1b4a2db
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51185
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: David Neto <dneto@google.com>
Semantic information about block statements the resolver would
temporarily create while resolving is now exposed in a
sem::BlockStatement class.
In the process, semantic information about statements in general is
overhauled so that a statement has a reference to its parent
statement, regardless of whether this is a block.
Bug: tint:799
Bug: tint:800
Change-Id: I8771511c5274ea74741b8c86f0f55cbc39810888
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50904
Commit-Queue: Alastair Donaldson <allydonaldson@googlemail.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Makes future development easier.
New features:
* A more compact and cleaner results view
* Concurrent testing, much quicker across multiple cores
* Supports comparing output against an expected file, including a text diff of differences. Also has a flag for updating the expected outputs
* Advanced file-globbing support, including scanning for files in subdirectories
* Skip lists are now no longer hidden away in the tool, but defined as a SKIP header in the *.expected.* file
Change-Id: I4fac80bb084a720ec9a307b4acf9f73792973a1d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50903
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
In preparation for implementing
https://github.com/gpuweb/gpuweb/issues/1604, this change removes the
sem::AccessControl node. Instead, the ast::AccessControl::Access enum is
now on the sem::StorageTexture class, as well as on sem::Variable. For
sem::Variable, the field is set when the variable's type is either a
storage buffer or a storage texture.
Bug: tint:802
Change-Id: Id479af36b401d067b015027923f4e715f5f69f25
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51020
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
The backends now use sem::Variable::ConstantId() instead, since the
AST does not have the correct ID when the parameterless version of the
override attribute is used.
Change-Id: I816295c8b2e4baa1671c9d042920bf001b1b4336
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50845
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
Add design doc describing how to translate from SPIR-V Vulkan
style inputs/outputs to WGSL-style inputs as shader entry points,
and outputs as shader return value.
Change-Id: If0dc5f07542ccf2db95ed648a34f73a06e20a5a4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/38961
Reviewed-by: Alan Baker <alanbaker@google.com>
Commit-Queue: David Neto <dneto@google.com>
