When converting values between two concrete types, handle the case that
the value is unrepresentable by the target type.
For integers, the converted value will be either the maximum or minimum
value for the integer type.
For floats, the converted value will be positive or negative infinity.
Bug: tint:1504
Change-Id: Ia56fb8170c0ea994632194f166062823d9507249
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/91621
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
by the materialized type.
Bug: tint:1504
Change-Id: I3534ce62308ba2ff32c52a2f5bc8480d102153a1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/91422
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Instead of vector-of-variant.
This:
• Makes it impossible to produce a mix of scalar variant types, which
would make no sense.
• Reduces the size of a Constant, by removing the union-tag from each
element.
Also clean up terminology. Rename 'Constant::Scalar' to
'Constant::Element'. Scalars are well-defined in WGSL, and with the
introduction of abstract-numerics, this no longer makes sense.
Bug: tint:1504
Change-Id: I599aa97ad1ea798b7db8e512a5990ba75827faad
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/91304
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
And expand the handling to include matrices.
Bug: tint:1504
Change-Id: I6fd9ce239d13acf0e2f74b8ea19dfac3457e348c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/91026
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
When enabled, unsuffixed literals will be treated as abstract numerics.
By having this disabled by default, we can build up the tests without
the risk of breaking production code.
This flag is enabled for resolver unit tests. This can safely be done
with no change in tested behavior, as all tests use the '_i' or '_u'
literal suffixes, so currently there are no tests that exercise abstract
numerics.
Bug: tint:1504
Change-Id: I39523ff6e235a12533b1dd98587b580bed98300f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/91025
Commit-Queue: Ben Clayton <bclayton@chromium.org>
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>
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>
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>
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>
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>
Merge SintLiteralExpression and UintLiteralExpression with
IntLiteralExpression. IntLiteralExpression has a new Suffix field which
indicates whether the literal is either a:
• 'i' suffixed integer literal
• 'u' suffixed integer literal
• no-suffix integer literal
Have the SPIR-V reader produce no-suffixed literals for i32 types, to
keep this change small. In future changes the SPIR-V reader will
produce 'i' suffixed types for these.
Have all consumers of IntLiteralExpression treat unsuffixed integers the
same as 'i'-suffixed literals. Unsuffixed will be treated as abstract in
future changes.
Removed SemHelper::TypeOf(const ast::LiteralExpression* lit).
Fixed: tint:1510
Bug: tint:1504
Change-Id: I443f41984e637ddd948182ee756af1010c5f8226
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88842
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL updates the clang format files to have a single shared format
between Dawn and Tint. The major changes are tabs are 4 spaces, lines
are 100 columns and namespaces are not indented.
Bug: dawn:1339
Change-Id: I4208742c95643998d9fd14e77a9cc558071ded39
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87603
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This PR condenses the namespaces in the tint/resolver folder.
Change-Id: I7ed4d677a3d1dd39a672fc2d4e6721a6a4f6157d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86031
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
