Add support for a [[precedence(N)]] decoration on intrinsic table type
declarations. This will be used to ensure the type with the lowest
conversion rank is matched when a matcher could match multiple types
for a given abstract numeric argument type.
Bug: tint:1504
Change-Id: I96475b000c0917bbfa4e2873b1731ce048b96a7d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90664
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
The concept of 'closing' an open type or number made sense when these
were immutable once the first type/number had been matched during
overload resolution.
In order to support abstract numerics, these template parameters need to
be constrained as the arguments are evaluated, so there's no longer a
binary open / closed state.
Give up on this concept, and rename everything to 'template type' and
'template number'. This is likely easier for people to understand
anyway.
Also fix a small typo in the ICE message printed when there's an
ambiguous overload resolution (should never happen with the current
entries in the table).
Bug: tint:1504
Change-Id: I2bf043c71e5afa757259968eae4af830c50f38e0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90662
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
Migrate from a hand-rolled tagged-union of [i32, u32, f32, f16, bool]
types. Instead use a std::variant of [AInt, AFloat, bool]. The Constant
holds the actual type, so no information is lost with the reduced types.
Note: Currently integer constants are still limited to 32-bits in size.
This is enforced by the frontend.
Bug: tint:1504
Change-Id: I316957787649c454fffb532334159d726cd1fb2d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90643
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Remove the ProgramBuilder from ClosedState and use a pointer for the
'overload' field instead of a reference. Let's the Candidate be
copy-assignable, which in turn, allows the Candidates vector to be
sorted directly, instead of jumping through hoops to use moves.
Replace random mix of 'int', 'uint8_t' with 'size_t' (externally to the
constant table data). Reduces fragile weak binding between distant code.
Swap the overload scoring order (high-best -> low-best). Remove the
'matched' field - we can now just check whether the 'score' is 0.
Further simplifies sorting.
Change-Id: I4a4b7934be337306202647d096c546eab5c8498f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90641
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
If the CallSiteRequiredToBeUniform tag is present, add the edge from
RequiredToBeUniform to a new diagnostic node for the function call,
instead of to the control flow coming out of the function call. Doing
the latter causes a false positive when a function both requires
uniform control flow and causes non-uniform control flow.
Bug: tint:880
Change-Id: Icade8f76302e8c21529502f5f945f1981acfc45a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90582
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: James Price <jrprice@google.com>
For all types except for arrays and structures, which are explicitly
typed and have trivial overloads.
This will simplify maintenance of type functions, unifies diagnostic
messages and will greatly simplify the [AbstractInt -> i32|u32]
[AbstractFloat -> f32|f16] logic.
Bug: tint:1504
Change-Id: I2b17ed530d1cece22adcbfc6de0bec4fbda4c7bd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90248
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
When importing Dawn into Tint:
error: [chromium-style] auto variable type must not deduce to a raw pointer type.
Change-Id: I6ff4451a5519c38b18eb8d96f6bc82b8090077f8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90500
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
The bitwise-and and bitwise-or binary operators on booleans result in an integer.
Explicitly cast this back to a boolean.
Fixed: tint:1540
Fixed: tint:1541
Change-Id: I395176f291e6080c88b8cff18e14ed6cd1234074
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90501
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Fixes a stack overflow when traversing particularly deep graphs.
This changes the iteration order which changes some of the diagnostic
notes, but the diagnostics are still correct and deterministic so it
does not matter.
Fixed: chromium:47418
Change-Id: I2def633b6d96d1525027f7929b0fa0a6fba0efeb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90140
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Add additional nodes to capture places where control flow is changed
(if, switch, for, short-circuiting op, function call), and use these
to show the actual point at which control flow became non-uniform as a
result of a non-uniform value.
Do this recursively, to capture cases where control flow becomes
non-uniform after a function call statement.
Bug: tint:880
Change-Id: Ied92d690f98a5c11a1892eef500a50d0f123943d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89862
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
This patch adds a workaround on a DXC error in the translation of DP4a
functions that the third parameter "acc" of both dot4add_i8packed() and
dot4add_u8packed() can only be a variable, or a compile error will be
generated.
Bug: tint:1497
Test: tint_unittests
Change-Id: I263d27fb18bd354e0c9110f60cbc98860cf7afe5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90027
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
If the WGSL provided over 255 arguments, then we'd overflow the uint8_t,
and a bad candidate could be matched.
We have validation in place to ensure that user functions are not
declared with more than 255 parameters, but no validation for number of
arguments provided.
Fixed: chromium:1323605
Change-Id: I048709e8b02bdd95d5082128a1186080c79b2fc7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90249
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Remove the space between operator"" and the name of the function, as per
the C++ spec. cppreference says as much, but its example code inserts a
space, confusingly.
Fixed: tint:1535
Change-Id: I46ac8fab74290db1a3c0085b56bc66a4c1d318f4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90280
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Fix the namespace - this should have been tint::resolver.
Use a single u32 bitset for overload flags instead of multiple fields.
Bug: tint:1504
Change-Id: I633b21ce14e20fc9aeeed5221886c1d22e327bdc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90241
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Do the partitioning of unary and binary operators in the intrinsic table
generators, instead of searching all operators at runtime.
Will allow code to be simplified.
Bug: tint:1504
Change-Id: I67246b954e530e0542b1b67c99fb34a756cf532a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90240
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
This patch:
1. Add the `f16` WGSL extension.
2. Add `f16` as keyword, and remove it from reserved word list.
3. Add ast::f16 and sem::f16, and implement validation that using `f16`
type must be with `f16` extension enabled.
4. Add `Number<NumberKindF16>` for f16 literal and constant, and add
`ast::FloatLiteralExpression::Suffix::kH`.
5. Add placeholder in all writer which report error when try to emit f16
type.
Bugs: tint:1473, tint:1502
Change-Id: Ifb363beeb2699ed7cac57e07227d1b2cfa8050b4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89922
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
This patch make `sem::Vector::Size()` and `Align()` more general to
prepare for subtypes of 16bits, e.g. f16. Previously these methods
assert that the subtypes are of 4bytes.
Change-Id: Ic939f177e87faabdf17d1d404cee82a91072a179
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90163
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
Add tests for the source information for all binary expressions.
Change-Id: I163cddf60eab4b7af8a1bafb899a1d5bfff6fe0c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89802
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
If the function has no return statements, we need to do this to
capture the potential non-uniformity coming from nested function
calls.
This also removes the need to add explicit edges for discard
statements, so remove them.
Bug: tint:880
Change-Id: I88b1132faf35a6d36460ef353912f77a15f8abaa
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89861
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
[chromium-style] auto variable type must not deduce to a raw pointer type
Fixes Dawn -> Tint roll
Change-Id: I1e249dd9891d2f93d631032c1721e8980d8cb343
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90000
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Show the original source of non-uniformity when producing errors from
the uniformity analysis.
Bug: tint:880
Change-Id: Id386ae8fa5ff1b1443d54c0b5ef12ab76b3b3f13
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89723
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
When producing an error from the uniformity analysis, add notes to
show the underlying reason for the uniformity requirement.
For function calls that are required-to-be-uniform, show the innermost
builtin call that has the requirement.
For function parameters that are required-to-be-uniform, recurse into
that function to show where its requirement comes from.
Add some new tests to specifically test the error messages.
Bug: tint:880
Change-Id: Ib166fdeceaffb156a3afc50ebc5a4ad0860dc002
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89722
Reviewed-by: Ben Clayton <bclayton@google.com>
Move the control flow graphs to `FunctionInfo` so that they are not
destroyed when we finish processing the function.
This will make it easier to produce more detailed diagnostics for
uniformity issues, which will be coming in subsequent CLs.
There is no functional change in this CL.
Bug: tint:880
Change-Id: I1322fb54b16bd1c660799a62435fbdcd7fb39cb2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89822
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
This implements the uniformity analysis as currently described in the
WGSL specification. Uniformity issues are presented as warnings, and
will be switched to errors in a future release.
A follow-up patch will improve the error messages, which currently
just show the point at which a uniformity was detected.
In a future release, once we have obtained initial feedback from
users, uniformity issues will become errors.
Bug: tint:880
Change-Id: I7d0b3080932c786c5d50b55720fec6d19f00d356
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88368
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Alan Baker <alanbaker@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Otherwise, calling `Sem().Get()` on an empty loop continuing block
will return nullptr, which causes issues when inspecting the semantic
information of ast::BlockStatement nodes generically.
Change-Id: Ib3665b750c96eda02355fa879cf6300b8d69293a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89721
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
The scope stack has potential uses other than mapping from symbols.
Change-Id: I1eaedb9a9c913a7b2cda41bb99a986c552a66110
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89720
Reviewed-by: Ben Clayton <bclayton@google.com>
This is done via a new extension, which in the future could also be
used by shader authors as an escape hatch while we are still refining
the analysis.
The transform is run by the sanitizers for all of the non-WGSL
backends.
Bug: tint:880
Change-Id: Ibe90d7437d34c741a91eda65dff6d21d8469b9c7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88464
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Unsuffixed float literals are currently treated as f32,
but will shortly become AbstractFloat. To keep tests behaving
identically to how they are currently, change all float literals
to explicitly use the f32 '_f' suffix.
Bug: tint:1504
Change-Id: I2a00725ee1b34a6efbe15ac4ba438c00c4416dd8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89402
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Use this for expressing negative i32s.
Replacing `i32(-123)` with `-123_i` is more readable as the former looks
like it should be generating a WGSL cast, which it does not.
Bug: tint:1504
Change-Id: Iead3885b903e1f707b8a7e6b9090d65930df118e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89401
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Enfore that the Expr(bool) overloads are only used if the argument type
is explicitly a bool.
Fix a test bug where this was happening.
Change-Id: I5d7520be4859a700265d62b322416a90f278b2d3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89400
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Generate different tokens for:
• 'f' suffixed float literals
• unsuffixed integer literals
'f' and unsuffixed are currently both treated as f32 by the resolver,
but this is the first step to supporting abstract floats.
Bug: tint:1504
Change-Id: Id3b1fe420b6eb8901f88d6a5de06ef4f54aa3edf
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89031
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
This patch adds the support of dot4I8Packed and dot4U8Packed in
semantics under the extension "chromium_experimental_dp4a".
Bug: tint:1497
Test: tint_unittests
Change-Id: I659172fcb8953ba13b49664c6c9ad75724ff5957
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88962
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
• Declare all the unary ops in the intrinsics.def file.
• Reimplement the bulk of Resolver::UnaryOp() with the IntrinsicTable.
This will simplify maintenance of the operators, and will greatly
simplify the [AbstractInt -> i32|u32] [AbstractFloat -> f32|f16] logic.
Bug: tint:1504
Change-Id: Ifc646d086fc93cfbe3f3f861b8c447178664c1f7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89028
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
• Declare all the binary ops in the intrinsics.def file.
• Reimplement Resolver::BinaryOpType() with the IntrinsicTable.
This will simplify maintenance of the operators, and will greatly
simplify the [AbstractInt -> i32|u32] [AbstractFloat -> f32|f16] logic.
Bug: tint:1504
Change-Id: Ie028602e05b59916c3f2168c92f200f10e402b96
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89027
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Adapt the builtin parsing and resolving to also support operators.
Will be used to generate intrinsic table entries for operators.
This will simplify maintenance of the operators, and will greatly
simplify the [AbstractInt -> i32|u32] [AbstractFloat -> f32|f16] logic.
Bug: tint:1504
Change-Id: Id75735ea24e501877418812185796f3fba88a521
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89026
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
• Rename 'builtin-gen' back to 'intrinsic-gen', as 'intrinsics' now
include both builtins and operators.
• Move the intrinsic definitions, and IntrinsicTable to the resolver
package, where it belongs.
Bug: tint:1504
Change-Id: I5ad5c285c1e360a224ee1235c293ccd55eb2693d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89025
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Unsuffixed integer literals are currently treated as i32,
but will shortly become AbstractInteger. To keep tests behaving
identically to how they are currently, change all test literals
to using either 'i' or 'u' suffixes.
Bug: tint:1504
Change-Id: Ic373d18ce1c718a16b6905568aec89da3641d36b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88845
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
If the Switch() has a default case, then allow support for return types that do not have a default constructor.
Bug: tint:1504
Change-Id: I671ea78fe976138a786e2e0472e1e5f99afa0c5d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89022
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
And use this to define constants for override vars in unit tests that
would fail for HLSL.
Bug: tint:1519
Change-Id: I4fd15c517868694d2bcd81d563399f817ed74ae6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88882
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Various things are deprecated or removed in C++20, including
* Various allocator member types
* std::iterator
* std::result_of
Replace these with supported versions.
Bug: chromium:1284275
Change-Id: I11a2909e3a269cdb98ada2bd6621086409878242
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89040
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: Peter Kasting <pkasting@google.com>
Commit-Queue: Peter Kasting <pkasting@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Use this for the BlockAllocator cast.
Bug: dawn:1406
Change-Id: Ic5d1acf7f8e74037fb51fc9d5d3b5141a15bd962
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89021
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
