13 Commits

Author SHA1 Message Date
Ben Clayton
735dca8393 ast: Remove TypeConstructorExpression
Add a new 'Target' to the ast::CallExpression, which can be either an
Identifier or Type. The Identifier may resolve to a Type, if the Type is
a structure or alias.

The Resolver now resolves the CallExpression target to one of the
following sem::CallTargets:
* sem::Function
* sem::Intrinsic
* sem::TypeConstructor
* sem::TypeCast

This change will allow us to remove the type tracking logic from the WGSL
parser, which is required for out-of-order module scope declarations.

Bug: tint:888
Bug: tint:1266
Change-Id: I696f117115a50981fd5c102a0d7764641bb755dd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/68525
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-11-15 20:45:50 +00:00
Ben Clayton
4f3ff57c28 ast: Keep style consistent
Methods and functions are `CamelCase()`
Public fields are `snake_case` with no trailing `_`
Private fields are `snake_case` with a trailing `_`

Remove pointless getters on fully immutable fields.
They provide no value, and just add `()` noise on use.

Remove unused methods.

Bug: tint:1231
Change-Id: If32efd039df48938efd5bc2186d51fe4853e9840
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66600
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-10-15 17:33:10 +00:00
Ben Clayton
14fc622161 ast: Rename CallExpression::params() to args()
Arguments are the values passed to a function.
Parameters receive arguments.

Fixed: tint:811
Change-Id: I82fe71aa795b8b365bc78981e84c86b419eb3eb2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66263
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-10-14 09:51:14 +00:00
Ben Clayton
b5cd10c7bd Program: Track what transforms have been applied
Allows transforms to assert their dependencies have been run before they
are.

Also allows the backends to validate that their sanitizers have been run
before they're used.

Change-Id: I1e97afe06f9e7371283bade54bbb2e2c41f87a00
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55442
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-25 10:26:26 +00:00
Ben Clayton
ffd28e2e1a diag: Add System enumerator to all diagnostics
Describes what Tint system raised the diagnostic.

Use this information in the fuzzers to distinguish between expected and unexpected failure cases in the Transform fuzzer tests.

Fixed: chromium:1206407
Fixed: chromium:1207154
Change-Id: I3b807acafe384a2fc363d2a4165a29693450b3cf
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55254
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2021-06-24 11:27:36 +00:00
Ben Clayton
93e8f527ee wgsl: Deprecate [[access]] decorations
Handle access control on var declarations instead of via [[access]]
decorations. This change does the minimal work to migrate the WGSL
parser over to the new syntax. Additional changes will be needed
to correctly generate defaulted access qualifiers, as well as
validating access usage.

The [[access]] decorations are still supported by the WGSL parser,
with new deprecated warnings, but not for aliases. Example:
   var x : [[access(x)]] alias_to_struct;

Making this work is far more effort than I want to dedicate to backwards
compatibility, and I do not beleive any real-world usage will be doing
this.

Still TODO:
* Adding access control as the optional, third parameter to ptr<>.
* Calculating default accesses for the various storage types.
* Validating usage of variables against the different accesses.

Bug: tint:846
Change-Id: If8ca82e5d16ec319ecd01f9a2cafffd930963bde
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53088
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-06-04 20:41:47 +00:00
Ben Clayton
19d3205e15 Remove typ::TypePair.
You've helped us bridge two worlds.
Good Night, Sweet Prince.

Fixed: tint:724
Change-Id: I0b4ba960e9cf5dcff7df9d2f332ea36d6663c440
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51667
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
2021-05-20 15:10:48 +00:00
Ben Clayton
9b54a2e53c Implement Pointers and References
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>
2021-05-18 10:28:48 +00:00
Brandon Jones
ecd31c5ee6 Remove texture_external overload for textureSample and add textureSampleLevel
Removes the texture_external overload for textureSample and replaces it
with a texture_external overload of textureSampleLevel to match merged
spec. Adds a transform that adds the implicit level parameter to
textureSampleLevel. Modifies unit tests to reflect change.

Bug: dawn:728
Change-Id: I2dbc9232b4343db1075be79fda0054231860f3b1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50701
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-12 10:37:03 +00:00
Brandon Jones
97a7d266e0 Transform textureLoad calls for texture_external
Adds a transform that adds an additional 'level' parameter to textureLoad calls
when used with a texture_external. Adds a test for the textureLoad
transform. Additionally adds a test for calls to textureDimensions with
a texture_external.

Bug: dawn:728
Change-Id: I613ce8185e9a4c49529fd8e48323e586c95dde04
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50420
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-11 10:35:43 +00:00
Ben Clayton
8f96595540 ExternalTextureTransform: Fix undefined behavior
WGSL now supports type inferencing with `let` declarations, so `var->type()` may return nullptr.
Calling a method (`Is<T>()`) on a nullptr object is UB. Instead used the free-function form which can handle nullptr objects.

Change-Id: I8faf875e1550eac1306ad731a65f3662bc4e5b43
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50307
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Brandon Jones <brandon1.jones@intel.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-10 16:06:51 +00:00
Ben Clayton
58f93c9e26 Build fixes
Two incompatible changes landed simultaniously.
Also fix a warning about variable shadowing.

Change-Id: I84c9ba48fb87a348a5b0e622ca2fdb191f95a6b2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49964
Commit-Queue: Ben Clayton <bclayton@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2021-05-05 18:00:52 +00:00
Brandon Jones
b432f232b5 Add Transform For External Textures
Adds a transform to reclassify single-plane texture_external types into 2d sampled textures. Adds a unit test for the transform.

Bug: dawn:728
Change-Id: Id1f88565aeacbfea47b140181c78ad122edbdae8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49641
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-05 16:38:12 +00:00