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6 Commits

Author SHA1 Message Date
Ben Clayton c64ca23d94 tint: Deprecated module-scope 'let' for 'const' 
Enable the parsing of 'const'.
Warn on use of module-scope 'let', and automatically replace with 'const'.

Fixed: tint:1580
Change-Id: I214aabca80686dc6b60ae21a7a57fbfb4898ea83
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/93786
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
 2022-06-29 00:55:36 +00:00
Ben Clayton f47887d207 tint/writer/msl: Generate an array<T,N> helper 
And remove the WrapArraysInStructs transform.

Wrapping arrays in structures becomes troublesome for `const` arrays, as
currently WGSL does not allow `const` structures.

MSL 2.0+ has a builtin array<> helper, but we're targetting MSL 1.2, so
we have to emit our own. Fortunately, it can be done with a few lines of
templated code.

This produces significantly cleaner output.

Change-Id: Ifc92ef21e09befa252a07c856c4b5afdc51cc2e4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94540
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
 2022-06-24 17:01:59 +00:00
Ben Clayton 3c054304a8 tint/sem: Support arrays for sem::Constant 
https://github.com/gpuweb/gpuweb/issues/3056 proposes that creation-time
constant expressions should support arrays. We have verbal agreement to
update to spec to support const arrays.

Bug: tint:1580
Change-Id: If460f729384d700a1c2149c5b7dbe8613a960184
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94330
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
 2022-06-24 15:28:28 +00:00
Ben Clayton 8e3485248e tint/writer/spirv: Inline constant expressions 
This is required to handle materialized values, and for constant
expressions.

Bug: tint:1504
Change-Id: If0a49e9b03566c06aa6e4e4c284fc427e1541e91
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92082
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
 2022-06-01 15:57:22 +00:00
James Price 3b671cb377 wgsl: Separate struct members with commas 
Use of semicolons is still supported, but deprecated.

Also updates the parsing methods for structures to better match the
WGSL grammar.

Bug: tint:1475
Change-Id: I7675ba42c13f91080b0ac173c352e0092021f80b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84380
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
 2022-03-28 14:31:22 +00:00
Ryan Harrison dbc13af287 tint->dawn: Shuffle source tree in preperation of merging repos 
docs/    -> docs/tint/
fuzzers/ -> src/tint/fuzzers/
samples/ -> src/tint/cmd/
src/     -> src/tint/
test/    -> test/tint/

BUG=tint:1418,tint:1433

Change-Id: Id2aa79f989aef3245b80ef4aa37a27ff16cd700b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/80482
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
 2022-02-21 15:19:07 +00:00