Commit Graph

198 Commits

Author SHA1 Message Date
Ben Clayton e6d171ac66 writer/hlsl: Implement atomics
Storage buffers are emitted as `ByteAddressBuffer`s in HLSL, so we have to jump through hoops to support atomic ops on storage buffer atomics.
Workgroup atomics are far more conventional, but very little code can be shared between these two code paths.

Bug: tint:892
Change-Id: If10ea866e3b67a093e87aca689d34065fd49b705
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54651
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-18 18:56:13 +00:00
Ben Clayton 0a32a724f4 writer/wgsl: Emit atomic types
Bug: tint:892
Change-Id: Ie483167bcf669e5f2d6b5489a915584fc3678183
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54649
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-18 18:56:13 +00:00
Ben Clayton 6a77236d8c intrinsics.def: Add atomic intrinsics
Change-Id: I26a9ce9e1978aa2542ce2b3f17c9f5861e556a8a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54657
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-18 18:56:13 +00:00
Ben Clayton 433b4ec60d test: Generate more permutations for pointers
Instead of just generating pointers to functions, generate pointers to all permuted storage types and accesses.

Change-Id: I930b20150d823877eaf72dd7cac850078fe22f35
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54656
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-18 18:56:13 +00:00
Antonio Maiorano adbbd0ba66 Validate scalar constructor and implement conversion to vecN<bool> in spir-v backend
After implementing validation and fairly exhaustive tests, discovered
that conversion of scalar vector to bool vector did not work in the
spir-v backend. For module scope variables, we use and rely on the
FoldConstants transform to ensure no conversion needs to take place.
This is necessary because we cannot easily introduce temporary values
and refer to them when casting at module scope. Note that for the same
reason, module-level conversions are always constant foldable, so this
works. For function-level conversions, implemented support to emit a
comparison against a zero value, and store the result in the bool
vector.

Bug: tint:865
Change-Id: I0528045e803f176e03428bc7eac31ae06920bbd7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54744
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-18 15:32:21 +00:00
James Price 567f2e4f3b transform/msl: Run InlinePointerLets and Simplify
This will be relied on by the upcoming arrayLength transform.

Update test expectations.

Change-Id: Ib74b647abcd6f4393f9899ce40bbf06f6e53e7f4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55180
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-18 09:47:23 +00:00
David Neto 17287fcf1a spirv-reader: Set workgroup size, but not specializable
The WorkgroupSize builtin decoration applies to a composite constant.
Because WGSL does not yet support specializable constants for this,
use the *default* values for that SPIR-V spec constant.

Update end-to-end test expectations.

Fixed: tint:503
Change-Id: I012b316d13544ab9282e3276b58906327adab133
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/41960
Auto-Submit: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: David Neto <dneto@google.com>
Reviewed-by: Alan Baker <alanbaker@google.com>
2021-06-17 22:40:43 +00:00
Ben Clayton 9ab63ae600 test/intrinsics: Include overload signature in test case
Change-Id: I7ebd87ea3c63531dd75bf611ab9b3194e74326cd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54654
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-17 20:04:45 +00:00
Ben Clayton 313e6184e6 resolver: Resolve atomic types
Bug: tint:892
Change-Id: Ib595378b3b126a8f6bc4712ece943ba70816cb46
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54647
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-17 19:56:14 +00:00
Ben Clayton cf1613ee35 sem: Add atomic type
Bug: tint:892
Change-Id: I4826b71e5911c7f66019a956685675e9504551cf
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54646
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-17 15:48:39 +00:00
Ben Clayton 8c7f0da8c8 ast: Add atomic type
Bug: tint:892
Change-Id: I00ab3e819a60762ff72b58f8a8255e56adadd71f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54644
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-17 15:48:39 +00:00
Ben Clayton 75500a0218 test: Generate HLSL expected case that now passes
Change-Id: I5b7af7ccd0461ea88274637db1372cc57fa55f01
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54653
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-17 14:23:05 +00:00
David Neto 1e19b55d19 spirv-reader: switch to HLSL-style pipeline IO
- When storing to sample_mask output, write to the 0th element
- Only make a return struct if it has members
- Adjust type signedness coercion when loading special builtins.
- Adapt tests

- Update expectations for end-to-end tests

- Handle sample_mask with stride
  Input variables normally don't have layout. But they can have it
  up through SPIR-V 1.4.
  Handle this case in the SPIR-V reader, by seeing through the
  intermediate alias type created for the strided array type.

Bug: tint:508
Change-Id: I0f19dc1305d3f250dbbc0698a602288c34245274
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54743
Auto-Submit: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-06-17 09:10:04 +00:00
James Price c932b5535f Implement bitwise complement operator
This translates to/from OpNot for SPIR-V, and ~ for all three textual
language backends.

Fixed: tint:866
Change-Id: Id934fb309221e3fca0e7efa33edaaae137fd8085
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54980
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-17 08:35:54 +00:00
Sarah b6fdcc54df transform: remove VarForDynamicIndex transform.
Dynamic indexes are limited to references to matrices and arrays
https://github.com/gpuweb/gpuweb/pull/1801

Bug: tint:867
Change-Id: I114daa053c8a4ffd23ce784ac4538567a551cc21
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54701
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: Sarah Mashayekhi <sarahmashay@google.com>
2021-06-16 17:42:53 +00:00
Ben Clayton d47eb3a965 writer/hlsl: Generate padding for UBO padded structs
Combined with the new PadArrayElements transform, arrays with strides
are now correctly emitted.

Fixed: tint:182
Fixed: tint:895
Change-Id: I26a1be94dee6e4c9d9747c8317a932fc1fb3c810
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54640
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:50:11 +00:00
Ben Clayton 31936f375f Add transform/PadArrayElements
Replaces arrays with an explicit stride with an array to a structure holding the element padded with a `[[size]]` decoration.

Note that the HLSL writer is still not correctly emitting structure fields with a `[[size]]`, which will be fixed in a follow up change.

Bug: tint:182
Bug: tint:895
Fixed: tint:180
Fixed: tint:649
Change-Id: Ic135dfc89309ac805507e9f39392577c7f82d154
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54582
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:50:11 +00:00
Ben Clayton 92b1991271 test: Add case for tint:870
Also update SKIP reasons for DXC failures.

Bug: tint:870
Change-Id: I90b1af238249656fb02dfecbecf7f9258730e963
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54580
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-16 09:50:11 +00:00
Ben Clayton 677437d650 resolver: Reenable VS validation for returning position
Fixed: tint:730
Change-Id: I7d5ebeffe2d522182d07f554a671bebab1cce2e6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54420
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:50:11 +00:00
Ben Clayton 7e00263c01 wgsl: Remove [[access]] and [[offset]] decorations
These have been deprecated, and their usages in Dawn, CTS and samples have been updated.

Fixed: tint:846
Change-Id: I74b831fd5be2e7ca02e8208835eac8beddcef9af
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54325
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton fe66cbe7bb writer/hlsl: Implement fma()
Change-Id: I30763381bcb0588379e0896f014fa9756b5f3395
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54324
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton 35ce0d1993 writer/hlsl: Implement isNormal
Change-Id: I5e5aa81db686b0205ffbf157542c0e85f28b5d5d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54323
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton 9ef52ffd8c writer/hlsl: Use the WrapArraysInStructs transform
Fixes issues with using arrays as function return types.

Fixed: tint:848
Change-Id: Iee8af0f2cea9d19e448176446c6599be2bd32316
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54321
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton 0597a2b51b Add transform/WrapArraysInStructs
And replace the MSL writer's logic to do this with the transform.

We need to do the same thing in HLSL, and in the future GLSL too.

Partially reverts fbfde720

Change-Id: Ie280e011bc3ded8e15ccacc0aeb12da3c2407389
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54242
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton 5d2f34ecf2 writer/hlsl: Simplify emission logic, clean up output
And fix issues where global variables would not be emitted unless they were transitively referenced by an entry point.

This change requires crbug.com/tint/697 to be fixed before landing.

Change-Id: I712bd9d369e08c9a3cdfb0f114c3609584f91f28
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54241
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton 58e2fb1253 intrinsics: textureSampleCompareLevel()
Fixed: tint:862
Change-Id: If85fd589a500afe2c59ba581fcd0124d4b87dfde
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54181
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-14 15:29:34 +00:00
Ben Clayton aff8f8f26a test: Remove HLSL & MSL Validate() logic
We have the end-to-end test-runner which validates all this stuff.
There's no need to also Validate in the unit tests.

Change-Id: I8fbc1ecd395efcedec4aa41085e691c88f3b66a5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54160
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-11 13:22:27 +00:00
Ben Clayton 7fe0106b12 resolver: Validate that a call statement has no return value
Also split out validation tests from call_test.cc into call_validation_test.cc.

Bug: tint:886
Change-Id: I1e1dee9b7c348363e89080cdecd3119cc004658f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54063
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-11 13:22:27 +00:00
James Price 0f1efe04c3 writer/msl: Fix texture intrinsic generation
Wrap the texture expression in parentheses when it has lower
precendence than the function call operator.

Cast integer coordinates to unsigned integers as required by MSL.

Fixed: tint:536
Change-Id: I957e6be3c51044959e25e0be96c2d2c65db18187
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53962
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-11 12:46:26 +00:00
James Price 830b97ffa9 writer/msl: Handle texture and sampler variables
Move these module-scope variables to entry point parameters and pass
them as arguments to functions that use them. Disable entry point IO
validation for them.

Emit [[texture()]] and [[sampler()]] attributes on these entry point
parameters.

Fixed: tint:145
Change-Id: I936a80801875a5d0b6cd98a2e8f3e297a2f53509
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53961
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-11 12:34:26 +00:00
James Price 2940c7002c writer/msl: Avoid generating unnecessary pointers
When moving private and workgroup variables into the entry point,
generate pointers to pass as arguments to sub-functions on demand,
instead of upfront. This removes a bunch of unnecessary dereferences
for accesses inside the entry point, and one function variable.

Change-Id: I7d1aabdf14eae33b569b3316dfc0f9fbd288131e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54300
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-11 12:29:56 +00:00
Ben Clayton 3628949efc test: Add bug cases taken from monorail
Some now pass, some still fail.

If we fix bugs and they begin to pass, we have a better chance of noticing and marking the issues as fixed.

Change-Id: I7278f960967a570ccde8865dcf2aa580235559bf
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54062
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-10 18:49:14 +00:00
Ben Clayton aba42ed362 Add arrayLength() intrinsic that accepts a pointer argument
The old non-pointer argument overload remains, but is now deprecated.

Bug: tint:806
Change-Id: Ic917ccec0f162414ce1b03df49e332ad84d8060f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54061
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-10 18:43:04 +00:00
Ben Clayton 0aa7edbbd5 transform/spirv: Use InlinePointerLets & Simplify
arrayLength() will take a pointer to a storage buffer array.
This pointer may pass through function scoped let statements.
To make this intrinsic easier to generate, inline the pointer lets and
remove chains of &*&*.

Bug: tint:806
Change-Id: Ib2c79a9c38cba7391cbb4313986af9a72b0f0435
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54060
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2021-06-10 17:34:44 +00:00
Antonio Maiorano b5508fdcb5 Implement vector initialization from single scalar (aka "splat")
Updated spir-v and HSLS backends to emit valid constructors.

Bug: tint:656
Change-Id: I53356945563b633239b12c0f4e207f160dbc23d8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53780
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@chromium.org>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-06-10 13:23:31 +00:00
Antonio Maiorano 14b3403148 Validate function call arguments
- Add resolver/call_test.cc for new unit tests, and move a couple that
were in resolver/validation_test.cc to it

- Fix CalculateArrayLength transform so that it passes the address of
the u32 it creates to the internal function

- Fix tests broken as a result of this change

Bug: tint:664
Change-Id: If713f9828790cd51224d2392d42c01c0057cb652
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53920
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-06-09 20:17:59 +00:00
Ben Clayton 9ca78030eb hlsl: Implement modf and frexp
Change-Id: I40b3ad7e2d4811b0a52e75402c7d5ccda090a97c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53809
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-09 18:53:57 +00:00
Ben Clayton 0a2b5f22d4 Add transpose intrinsic
Fixed: tint:860
Change-Id: I899e280807503064fbabaafe02d37de4187b3298
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53805
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-09 14:32:14 +00:00
Ben Clayton ad7c2ec355 Implement ignore() intrinsic
Fixed: tint:871
Change-Id: I01e275686094611d67a54735593320bce16705c3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53681
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-09 08:30:57 +00:00
Ben Clayton dfcc7b5714 writer/spirv: Fix emission of select()
The argument order between WGSL and SPIR-V is different (condition is first in SPIR-V, last in WGSL)

Fixed: tint:560
Change-Id: I56c659c441292e05f71a24d96dbc9f93f25b71f0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53620
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-07 20:01:54 +00:00
Ben Clayton d7255e37f6 writer/hlsl: Emit vector-of-bool as boolN
Much like uintN, intN, floatN - boolN is far more common, and easier to read than vector<bool, N>

Change-Id: I51f9edc003c590266316d3eba286ca2f6882da10
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53390
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-07 20:01:54 +00:00
Ben Clayton 2d9ba5d8ad writer/hlsl: Implement select()
Fixed: tint:304
Change-Id: I8821bc6e4bfa0487161b8d915a6a107afd474105
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53389
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-07 19:17:34 +00:00
Ben Clayton fb6a6185fa test: SKIP deprecated/access_deco for MSL backend
This does not pass validation.

Change-Id: I3e63ad899d346321a4dea13f3a681d01546ed2bb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53621
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-07 16:50:22 +00:00
Ben Clayton 1858854f7e Add optional access to ptr<>
This also completes the work to resolve the access controls for each
storage type.

Fixed: tint:846
Change-Id: Iab24057ec14620a2978ec63c4a91ba12d1bc6e9b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53381
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-04 22:17:37 +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
James Price 9fd3befa17 tools: Return position from generated vertex shaders
This is required to generate valid MSL code, and will soon be
validated by Tint too.

Change-Id: I4c5f5c4ecb1c91131c934de1132217d9f6be1f8e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53420
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-04 17:31:48 +00:00
Antonio Maiorano 9834fefa7f Implement type inference
Bug: tint:672
Change-Id: I3f586ee867f75427c4e8c309f72fb468643c23c0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53182
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-06-04 15:28:47 +00:00
James Price 7697c31e84 writer/msl: Emit builtins as parameters
Add a config parameter for the CanonicalizeEntryPoint transform that
selects between emitting builtins as parameters (for MSL) or struct
members (for HLSL).

This fixes all of the shader IO issues in Tint's E2E tests for MSL.

Fixed: tint:817
Change-Id: Ieb31cdbd2e4d96ac41f8d8515fd07ead8241d770
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53282
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-04 14:40:28 +00:00
James Price 851b18b2f2 writer/msl: Emit field designators for structures
This fixes constructors for structures that contain padding members
due to explicit layout attributes.

Also fix one test that was wrongly using an identity type constructor
for a structure.

Fixed: tint:853
Change-Id: I0a3e84fcd7c6a7f2ad92a4970ed11378e6ce2465
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53240
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-06-03 18:12:15 +00:00
Ben Clayton 71786c99b3 resolver: Validate pipline stage use for intrinsics
Use the new [[stage()]] decorations in intrinsics.def to validate that intrinsics are only called from the correct pipeline stages.

Fixed: tint:657
Change-Id: I9efda26369c45c6f816bdaa53408d3909db403a1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53084
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-06-03 16:07:34 +00:00