We can safely assume that deserialize is enabled for all output tests.
Supporting other modes of operation has low utility.
This change also adds an option to skip the explicit types for WGSL output.
* Make default a switch case
Previously the default case of a switch statement was encoded as a block
in the statement but the wgsl spec defines it in such a way that the
default case ordering matters.
* [spv-out] Support for the new switch IR
* [dot-out] Use different labels for default cases
This is just a table mapping handles to their indices, but we can just fetch the
index directly from the handle. We never iterate over its entries, but even if
we did, we could at least use a HashSet instead of a HashMap.
Replace uses of `call_unique` with uses of `call` and `call_or`, which becomes
public. It's not clear when `call_unique` is correct to use, and avoiding a few
numeric suffixes here and there isn't worth it.
* Update WGSL grammar for pointer access.
Comes with a small test, which revealed a number of issues in the backends.
* Validate pointer arguments to functions to only have function/private/workgroup classes.
Comes with a small test. Also, "pointer-access.spv" test is temporarily disabled.
Treat expressions in `Function::named_expressions` like WGSL `let` declarations,
assuming that the Load Rule was applied to the rhs of the declaration, meaning
that their values are always `Indirection::Ordinary`.
Split `write_expr_plain_form` out from `write_expr_with_indirection`, to clean
up the parenthesis generation: no more `opened_paren` variable, just function
calls. This makes the early return for named expressions neater.
Fixes#1382.
Treat `TypeInner::ValuePointer` and `TypeInner::Pointer` as equivalent by
converting them to a canonical form before comparison.
Support `ValuePointer` in WGSL type output.
Fixes#1318.
Ensure that each distinct type occurs only once in `Module::types`, so that we
can use `Eq` on `Type` or `TypeInner` for type equivalence, without being
confused by differing `Handle<Type>` values that point to identical types.
This removes a number of duplicate types from the ir snapshots.
Fixes#1385.
Regression from ce676cf130.
We need to output (*d).mx rather than *d.mx, at least according to Tint.
wgsl-in seems to handle *d.mx just fine, which is likely a separate bug.
