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>
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>
James Price
Ben Clayton