tint/ast: Generate ast::BuiltinValue from intrinsics.def
Emit unit tests for parsing and printing.
Emit benchmarks for parsing.
Uses intrinsics.def as a single-source-of-truth.
The generators provide a way to optimize the enum parsers.
Change-Id: Ic95177b8b60a51f0bcd6dab4138984f54f30ed6d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/97201
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
diff --git a/src/tint/intrinsics.def b/src/tint/intrinsics.def
index c4b2313..072d38a 100644
--- a/src/tint/intrinsics.def
+++ b/src/tint/intrinsics.def
@@ -23,6 +23,23 @@
// Enumerators //
////////////////////////////////////////////////////////////////////////////////
+// https://gpuweb.github.io/gpuweb/wgsl/#builtin-values
+enum builtin_value {
+ position
+ vertex_index
+ instance_index
+ front_facing
+ frag_depth
+ local_invocation_id
+ local_invocation_index
+ global_invocation_id
+ workgroup_id
+ num_workgroups
+ sample_index
+ sample_mask
+ @internal point_size
+}
+
// https://gpuweb.github.io/gpuweb/wgsl/#extension
enum extension {
// WGSL Extension "f16"
