Commit Graph

674 Commits

Author SHA1 Message Date
David Neto 597f52add2 [spirv-reader] Fix labels in CFG tests
Bug: tint:3
Change-Id: I13c67649d7e630828eeae34a2b4cd5612d5f2217
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20420
Reviewed-by: David Neto <dneto@google.com>
2020-04-24 19:11:43 +00:00
dan sinclair 8eddb78433 Update type determiner to create pointers.
This CL updates the type determiner such that variable result types
end up wrapped inside pointers, constants do not. The result of Member
and Array accessors are also pointers if the source was a pointer.

Change-Id: I6694367daf6ba1db929e54a975dfea8404fca40c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20265
Reviewed-by: David Neto <dneto@google.com>
2020-04-23 22:26:52 +00:00
David Neto 742790c8ff Fix nits from review
From review https://dawn-review.googlesource.com/c/tint/+/20080
- single_block_loop -> is_single_block_loop
- better message for internal error for missing block when registering
  merges

Bug: tint:3
Change-Id: Ief8ac5ce8ad7ffe93c28e0e7e2a793d50ce2de6c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20345
Reviewed-by: David Neto <dneto@google.com>
2020-04-23 20:28:34 +00:00
David Neto a82384ee97 [spirv-reader] Add ordered float inequalities
Bug: tint:3
Change-Id: I302001a7d368cb09068df1220e81885a813fa247
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20246
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-23 20:15:33 +00:00
David Neto ce84ac5023 [spirv-reader] Add signed integer inequalities
Bug: tint:3
Change-Id: Ic73491c2a00e5b9fd1aa70c385341ae79666cd1c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20245
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-23 20:15:33 +00:00
David Neto 1c6164363e [spirv-reader] Add unsigned integer inequalities
Bug: tint:3
Change-Id: If50d3816962679a8c199a515e8e0b4cdaf91a88c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20244
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-23 20:15:33 +00:00
David Neto daf4b3a60d [spirv-reader] Add LogicalEqual LogicalNotEqual
Bug: tint:3
Change-Id: I4925ccf555ea7d0dadcafeb539317a00b1a4b92f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20242
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-23 20:15:33 +00:00
David Neto 592a71c647 [spirv-reader] Test OpLogicalNot, vector case
Also, list remaining logical instructions to be tested

Bug: tint:3
Change-Id: I48dda1d3637bc7c4d75358e26fb9de8f0c6f0bb6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20261
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-23 20:15:33 +00:00
David Neto c7e8c9c1a9 [spirv-reader] Test position field of BlockInfo
Bug: tint:3
Change-Id: I746b04b545da9dcd7c0b8805f264b67cb59c8a1c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20240
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-23 20:15:33 +00:00
David Neto 0131580407 [spirv-reader] Register merges
Record header/merge cross-links, and single_block_loop attribute of BlockInfo.

Also checks that they are sane: only target blocks in the same function.

Bug: tint:3
Change-Id: I715f7ed354a556e92d58a4c9ba6f306c746c3641
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20080
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-23 20:15:33 +00:00
David Neto 795bebf1f2 [spirv-reader] Check terminators are sane
Each basic block must have a terminator, and if the terminator branches
to another block, that block must name a label in the same function.

Bug: tint:3
Change-Id: If22bece6a8041fef362c02b05e4dfee999a3e5bf
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20046
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-22 17:53:00 +00:00
David Neto aa257c068f [spirv-reader] Rename "rspo" to block_order
Bug: tint:3
Change-Id: I2d7e817fd30da98dc20da1be083be7e3cc5dcd89
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20147
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-22 00:27:31 +00:00
dan sinclair c9308dcb75 [spirv-writer] Generate Unary Op expression.
This CL adds the code to generate the negation and not operators.

Bug: tint:5
Change-Id: Ibb4d374586e1415a2a678e375c64ba69bbc20367
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20143
Reviewed-by: David Neto <dneto@google.com>
2020-04-22 00:24:11 +00:00
David Neto 50e738eca4 [spirv-reader] Test loop block order + nesting
Bug: tint:3
Change-Id: I97915d8e30c1676e1c1340217c5eb732c44f8ef0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20067
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-21 17:44:44 +00:00
David Neto 8e8c291db1 [spirv-reader] Test loop block order
Change-Id: If33d37d2813b1b1e584972d4da7aadbcb345d12f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20066
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-21 17:44:44 +00:00
David Neto b5d518b68b [spirv-reader] Test block order dup cases
- branch-conditional where both targets are the same
- switch where the default target is the same as a case target

Bug: tint:3
Change-Id: If5a3e1fead43ae3d528341f3e54dcae959d9eb8c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20061
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-21 17:44:44 +00:00
David Neto f6def6d572 [spirv-reader] Test nested if, switch
Bug: tint:3
Change-Id: I7b84523b765bd51ea7a65dc2de396a14b80fcc62
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20044
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-21 17:44:44 +00:00
David Neto 9cba3e1850 [spirv-reader] Split arithmetic, bit tests
Separate them into different test files, to match SPIR-V spec sections

Bug: tint:3
Change-Id: I89fe76230740da060d57ac23870069a5483b2d7d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20043
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-21 17:44:44 +00:00
David Neto 6235caaae4 [spirv-reader] Test block order with Kill, Unreachable
Bug: tint:3
Change-Id: Ic8627ca3449ddc7f6abf248b0a461cfbafe77819
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20041
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-21 17:44:44 +00:00
David Neto 571eea5a1a [spirv-reader] Compute basic block order
Test non-nested sequences and selections.

Bug: tint:3
Change-Id: Ibbbcd428d701d9e7d4da1682f94c2bdbef00121b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19920
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-21 17:44:44 +00:00
David Neto 90bbafa125 [spirv-reader] Fix build
Fix bad merge around emission of OpBitcast.

Change-Id: Iacc5ba1c3940745e4b2c46878bbc416397ec555f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20047
Reviewed-by: David Neto <dneto@google.com>
2020-04-20 22:09:26 +00:00
David Neto 89af8a23cc [spirv-reader] Add OpBitcast
Bug: tint:3
Change-Id: I51f4521edeacf9e7c4d8dbf4a1832295b1705550
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19886
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-20 21:06:43 +00:00
David Neto b4c49680b5 [spirv-reader] Add OpNot
Bug: tint:3
Change-Id: I4fe2f7ba0e8597ac5bed1e4817e3ccc38dc06a82
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19885
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-20 21:06:43 +00:00
David Neto 00feb1ca60 [spirv-reader] Add OpLogicalNot
Bug: tint:3
Change-Id: I5565133c47a34be3ed9e10b97aa5dfca0eace502
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19884
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-20 21:06:43 +00:00
David Neto 6eb498d669 [spirv-reader] Add OpFNegate
Bug: tint:3
Change-Id: I081df8fd37750917ae15667954d1b3fabb799010
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19883
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-20 21:06:43 +00:00
David Neto 6584028bb4 [spirv-reader] Add OpSNegate
Bug: tint:3
Change-Id: Id396319dd32216a71e21464d41bb2f2545929207
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19882
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-20 21:06:43 +00:00
David Neto e150e0f13e [spirv-reader] Test OpSMod
Also, it's not clear if OpSRem has a direct mapping.

Bug: tint:3
Change-Id: Ie7834253cf14109fbebd2ece8e18d9899b29753b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19881
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-20 21:06:43 +00:00
David Neto 4f10a256d5 [spirv-reader] Fix OpSDiv operand and result signedness
(I expect that) the WGSL signed division operator expects both operands
to be signed and the result will also be signed.

When the operands of a SPIR-V OpSDiv is unsigned, then wrap
the operand in an as-cast to the corresponding signed type.

When the result type of a SPIR-V OpSDiv instruction is unsigned,
we have to wrap the generated WGSL operator with an as-cast to
that unsigned type.

This first CL addresses OpSDiv.  We'll address other operations in future CLs.

Bug: tint:3
Change-Id: If3849ceb44b21db87c1efd2c6a2cd63c6d648c88
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19800
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-20 21:06:43 +00:00
David Neto b572d53bf2 [spirv-reader] Internally, generate typed expressions
The AST only wants expressions, not their result types.
But the SPIR-V reader wants to track the AST type as well.
So introduce a TypedExpression concept for internal use.

Bug: tint:3
Change-Id: Ia832f7422440ef0e8e04630cdca98cae20e18921
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20040
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-20 21:06:43 +00:00
dan sinclair 50714622b4 Cleanup IdentifierExpression API.
This CL renames the parts of the identifier to segments and then adds a
path() and name() methods to get the respective parts of the identifier.

Change-Id: I1a365df7cb83ac0dd3d6be9ec6ccb83bfc73dd91
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19762
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2020-04-20 14:21:00 +00:00
David Neto 340a51e787 Add required overrides for virtual destructors
Fixes build on macOS

TBR=rharrison@google.com

Change-Id: I22e463b76074b499187a472649c46ef1b17c77cd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19880
Reviewed-by: David Neto <dneto@google.com>
2020-04-17 15:52:49 +00:00
Ryan Harrison 0a196c13c8 Adding support for testing BUILD.gn
BUG=tint:50

Change-Id: Ie19a1af6a97a49a67dcc7474991c960b986ddebe
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19782
Reviewed-by: David Neto <dneto@google.com>
2020-04-17 13:18:20 +00:00
Ryan Harrison 0caab67e6e Add support for WGSL reading to BUILD.gn
BUG=tint:47

Change-Id: Ic50421f4dc712c614cf5783027ba273b53b2bd83
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19681
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-15 20:47:55 +00:00
Ryan Harrison d1cf8a8ba5 Add support for SPIRV reading to BUILD.gn
BUG=dawn:16

Change-Id: I1da30fed82a310007674801e3b1e853b25d5b573
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19640
Reviewed-by: dan sinclair <dsinclair@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2020-04-15 20:35:38 +00:00
David Neto ac3213b4ad [spirv-reader] Add UMod, SMod, FMod
Bug: tint:3
Change-Id: Idd0e5bbc51e05782d3f918e4ffeb83eab52d87d2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19565
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-15 14:02:37 +00:00
David Neto badf99be5d [spirv-reader] Add ISub, IMul, UDiv, SDiv
Bug: tint:3
Change-Id: Id2c9d91742f8bdc712d2dfbda5f4883379a29470
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19564
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-15 14:00:57 +00:00
David Neto d4c8ab967b [spirv-reader] Add FOrdEqual, FOrdNotEqual
Unordered equality and inequality is not yet in WGSL
https://github.com/gpuweb/gpuweb/issues/706

Bug: tint:3
Change-Id: I45761ee490829f180110c578283bf136a185de9f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19563
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-15 13:59:31 +00:00
David Neto da0a4e9c91 [spirv-reader] Add logical and, logical or
Bug: tint:3
Change-Id: Ia2bde9644a8e3cdd5871570354a380f968760711
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19562
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-15 13:58:17 +00:00
David Neto fae8368dfe [spirv-reader] Add bitwise operators
Bug: tint:3
Change-Id: I4ebaafcf2a234dd6c217241f0fb0dd6ee5684a7a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19561
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-15 13:57:20 +00:00
David Neto 641208c2b1 [spirv-reader] Add shift operators
Bug: tint:3
Change-Id: I96ba69d35b072712f8c912fd258bca1f32ab5482
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19560
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-14 21:02:17 +00:00
David Neto 11d9ac1ee1 [spirv-reader] Add INotEqual
Bug: tint:3
Change-Id: I5de89c15dfdcab1b454e2698244f51b0e2deb4ab
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19541
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-14 20:56:14 +00:00
David Neto bd2965858a [spirv-reader] Support OpIEqual
Bug: tint:3
Change-Id: I8d87711dcc0ffd1de3cd4a4874a8bf225c676b30
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19540
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-14 20:56:07 +00:00
dan sinclair 266a32954e Cleanup lint errors.
This CL cleans up some lint errors.

Change-Id: Ibfe9768cc4272d015a35a8d7edde0390b8fc66a5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19504
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2020-04-14 18:16:08 +00:00
David Neto 74d97e7282 [spirv-reader] Add FDiv
Change-Id: Ie24bb91276340afd77009165af471ce0f53cca39
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19503
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-14 16:27:26 +00:00
David Neto 5ef27afbfb [spirv-reader] Add FMul
Bug: tint:3
Change-Id: I2f7f9f451889d394b22bc297d511ee5fe92b7a85
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19502
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-14 16:27:01 +00:00
David Neto 31d9036769 [spirv-reader] Add FSub
Bug: tint:3
Change-Id: I6e79e19bf5feb9e0223d770f718a0d0bd9b5b147
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19501
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-14 16:26:29 +00:00
David Neto 79797490d8 [spirv-reader] Support OpFAdd
Bug: tint:3
Change-Id: I22a6ff13d3777544101fa8334d598e5a2524caec
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19223
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-14 16:16:09 +00:00
dan sinclair a28bcceb15 Remove premerge.
This CL removes the premerge statement and replaces it with a `premerge`
reserved word.

Change-Id: Ic9bc13878ed26e1733eb65dd1ba30d9bef095cb6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19380
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2020-04-14 14:46:58 +00:00
dan sinclair efb5d4e10f Remove regardless.
This CL removes the regardless statement and turns `regardless` into a
reserved word.

Change-Id: I50c521111b90dbadddaeb36674e8c40205186076
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19361
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2020-04-14 14:46:51 +00:00
David Neto 2a3e79cf8c [spirv-reader] Store to module-scope variables
Bug: tint:3
Change-Id: Ib4dbb976268999529c2a1c55531aa8293e565b9c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19222
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-14 14:23:59 +00:00
dan sinclair b39dabd0cd Run formatter
TBR=dneto@google.com

Change-Id: Idccbc5eeec6d763cdacd8d050bb396a0c897c7ca
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19400
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-12 19:47:16 +00:00
David Neto 3743c5ee65 [spirv-reader] Support IAdd
Also adds generic support for generating a combinatorial value
as a const definition.

Bug: tint:3
Change-Id: Idae758d146264491679710967e48ea270436be91
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19107
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-09 20:45:31 +00:00
David Neto 1234633b32 [spirv-reader] Handle OpLoad
Bug: tint:3
Change-Id: I25fdf086e49426240a771b70306b417cd8012777
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19140
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-09 13:29:17 +00:00
David Neto a1a86007c9 [spirv-reader] Emit stores
Bug: tint:3
Change-Id: Ibda57e58ac13abb650eb0f3e01adbd40b439a82b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19120
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-08 20:06:26 +00:00
dan sinclair d5dea224e0 Convert vectors to list aliases
This CL converts a few more std::vector<std::unique_ptr<foo>>'s to
FooList aliases.

Change-Id: If0dd672f11beaeabd9e89e82903c2174b11be6e1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19103
Reviewed-by: David Neto <dneto@google.com>
2020-04-08 19:58:28 +00:00
dan sinclair ee8ae04472 Set function storage class in type determiner.
If a non-const variable in a function has a kNone storage class we
update it to kFunction. If there is a storage class other then kFunction
we emit an error.

Bug: tint:5
Change-Id: If45eb91bd0a0095e625eb1d0e1d1e361c784e35d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19102
Reviewed-by: David Neto <dneto@google.com>
2020-04-08 19:58:20 +00:00
dan sinclair 719bfe01bf [spirv-writer] Add relational add
This CL adds the relational add expression to the spirv writer.

Bug: tint:5
Change-Id: Ideed225c63e60f53a019b79803809f8e973299c6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18605
Reviewed-by: David Neto <dneto@google.com>
2020-04-08 17:18:20 +00:00
David Neto 2c60b4c2cc [spirv-reader] use Function storage class on function vars
Change-Id: I22c76ea8bce7d050411b9dd0e283abe1dae8bc6c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19101
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-08 17:18:07 +00:00
David Neto d877e8b084 [spirv-reader] Start emitting expression
Bug: tint:3
Change-Id: I2e2fe41c43abbcbbc941968c0115d703f6bff501
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18822
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-08 14:24:18 +00:00
David Neto ec322349e2 [spirv-reader] Emit module-scope var initializers
Bug: tint:3
Change-Id: Ifadd7616945e2392d6705746b295448a21366b0f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18821
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-08 14:24:06 +00:00
David Neto 4194d0f948 [spirv-reader] Emit function variable initializers
Bug: tint:3
Change-Id: I1c7fa2c282e6dd95ea048df83f608d4462150394
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18820
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-08 14:23:42 +00:00
David Neto 4fa1ceb094 [spirv-reader] Emit function vars, no initializers
Bug: tint:3
Change-Id: I64a4a2c675e5440766ffc814867e6cf247d14c13
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18706
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-07 20:25:03 +00:00
David Neto 753cdc75c4 [spirv-reader] Test EmitFunctionDeclaration
Tests FunctionEmitter directly.
This is mostly refactoring to be able to selectively run parts of the
parsing flow, and to access relevant internal data.

Bug: tint:3
Change-Id: Ic2b166a2e9623a7e30e6769806088d12e78dcf45
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18704
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-07 19:56:02 +00:00
David Neto 574bce6746 [spirv-reader] Split function emission into parts
Bug: tint:3
Change-Id: Ifedf4e00c7d89641496330ab20bf797f656c761c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18703
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-07 19:55:54 +00:00
David Neto e70e10953b [spirv-reader] Refactor function emission
Create a FunctionEmitter class.
Move ParserImpl::Name to Namer::Name, and add tests.

Bug: tint:3
Change-Id: I271e8c75f6f5a0edf9d94fe0a4af5a022afac708
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18702
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-07 19:54:52 +00:00
dan sinclair 0e9d9ed60f Fill in some disabled tests
This CL completes a few of the DISABLED tests.

Change-Id: I38806fb9381240d6e3da700f1fb2dac5f899ca6d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19000
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2020-04-07 19:27:49 +00:00
dan sinclair 1c9b486d6e Rename RelationalExpression to BinaryExpression.
Match the more common usage for the expression type.

Bug: tint:37
Change-Id: Ia5d48a0444742ec4e304ea1036e499b3d7cad682
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18981
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2020-04-07 19:27:41 +00:00
dan sinclair 3ffec80c63 Add list helpers
This CL adds various using statements for the

std::vector<std::unique_ptr<CLASS>> constructs found in the AST.
Change-Id: Ic9a2357cd73b2aafd99e961a38727f2f9874cde5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18920
Reviewed-by: David Neto <dneto@google.com>
2020-04-06 19:37:37 +00:00
Greg Roth 8229360312 Fix compiles on VS2017 and GCC
VS2017 took issue with treating size_t and uint32_t the same. It also
couldn't find various alphanumeric is* functions without the <cctype>
header. Gcc complainted about a variable potentially used uninitialized.

Change-Id: I452b68c6597bae254f32e5a350656e65c8934b6e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18901
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-06 17:16:56 +00:00
David Neto cc39bae42c [spirv-reader] Fix SPIR-V assembly, re-enable test
Fix typos in SPIR-V IDs that were causing the optimizer to assert
out when building up its internal data structures.

Bug: tint:3
Change-Id: I27210623b0d3d241dbd6afe6bef63e88a02b390e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18640
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-02 03:22:53 +00:00
dan sinclair 66df06817f [spirv-reader] Fix copy elision
This CL removes a std::move which triggers a -Wpessimizing-move error

Change-Id: I378f32a808a86a0944a4bb41f243b7416c10a9fd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18602
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-02 02:35:21 +00:00
David Neto 790b2f6b32 [spirv-reader] Start adding functions
Only emit functions that have bodies.
Don't emit their bodies yet.
Emit them so that callees precede callers.

Bug: tint:3
Change-Id: Ia67ba2fe1d47c7c7d5c290d1d4fc5256fa293b51
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18620
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-01 21:21:21 +00:00
David Neto 84f70c0a90 [spirv-reader] Emit module-scope builtin vars
Bug: tint:3
Change-Id: I47ed2e9ed97fd7c45a5aa060a9a6aeaca88092cd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18500
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-01 17:56:18 +00:00
David Neto e0bcb544ac [spirv-reader] Convert builtin enums
Bug: tint:3
Change-Id: I1d94daab782e6e576f4b5a1c7c8816074d3ff307
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18480
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-01 17:56:05 +00:00
David Neto 06faf3bd5b [spirv-reader] Emit module-scope variables
Bug: tint:3
Change-Id: I54f35022c86d6c8df635bf86cc7bf39327674f6e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18460
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-01 17:55:57 +00:00
David Neto 269a2c6a91 [spirv-reader] Convert pointer type
Bug: tint:3
Change-Id: Ibba1472a1aa3f1399e9596ee6662a29121d88eca
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18420
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-04-01 13:22:34 +00:00
David Neto 0534957e78 [spirv-reader] Convert storage class
Bug: tint:3
Change-Id: Ifb543228a6b32f9afb6c61718a168a0bca4aed14
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18402
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-31 20:15:55 +00:00
David Neto a7640d6d4c [spir-reader] Emit alias types (named types)
Bug: tint:3
Change-Id: I4882160d9fe533d956f29ca15e65bf99eb80f5df
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18360
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-31 20:02:36 +00:00
dan sinclair 4493d13d49 Fixup shorten64-to-32 warning
Change-Id: I2995d11693f6f49f67b7d3a11dde8e3fdc8dc549
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18401
Reviewed-by: David Neto <dneto@google.com>
2020-03-31 17:45:41 +00:00
dan sinclair e49bd5eeb4 Rename VariableStatement to VariableDeclStatement.
This CL renames VariableStatement to VariableDeclStatement to make it
clearer what it was modeling.

Bug: tint:25
Change-Id: Idd0d27fad7cc402f286e1abad74092c9d1961d91
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18341
Reviewed-by: David Neto <dneto@google.com>
2020-03-30 22:46:48 +00:00
dan sinclair a322f5ddfa Update initializer names.
This Cl updates the names of the initializer expressions to be clearer.

 * InitializerExpression -> ConstructorExpression
 * ConstInitializerExpression -> ScalarConstructorExpression
 * TypeInitializerExpression -> TypeConstructorExpression

Bug: tint:26
Change-Id: Ib046497f589cc65d1d64bc172015588348feeffe
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18340
Reviewed-by: David Neto <dneto@google.com>
2020-03-30 22:46:06 +00:00
David Neto e68c9b4075 [spirv-reader] Convert struct types
Handle as many member decorations as the Tint AST can express right now.
See crbug.com/tint/30

Bug: tint:3
Change-Id: I6d04f1beb438b3d952a76886fbd9c6b7ea701d81
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18160
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-30 21:14:28 +00:00
David Neto 4da4c696e2 [spirv-reader] Get decorations
Bug: tint:3
Change-Id: Idfd49c5bfc8629c17f42f954d65c881865548b8a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18140
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-30 21:09:59 +00:00
David Neto a8bcec3ac1 [spirv-reader] Add TODO for ArrayStride
Bug: tint:3
Change-Id: I9655ddbe48f2660f88be68bc52c9467d805043ab
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18080
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2020-03-27 21:11:05 +00:00
dan sinclair 136fa11d53 Fixup compilation issues with type manager.
This CL fixes up some issues with the type manager.

TBR=dneto@google.com

Change-Id: I2d05935f26490fd8d20b1b6b1b61692a45e4a0f3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17940
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-27 01:50:13 +00:00
David Neto 288674904d [reader-spirv] Convert array, runtime array types
Bug: tint:3
Change-Id: If0d7d38cc777bce3d86dfd83669c1572331d4ed6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17800
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-27 00:49:03 +00:00
David Neto a8cd18e9e7 Context object owns a TypeManager
Add a Context::Reset method to clear state.

Hide the member behind an accessor.

Change-Id: Iafb7c39249f66f70c5a99a8ed1c69f2c0238834f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17742
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-27 00:47:16 +00:00
dan sinclair 113fb07071 [spirv-writer] Generate constants
This CL updates the SPIR-V writer to generate the OpConstantTrue,
OpConstantFalse and OpConstant instructions.

Bug: tint:5
Change-Id: I660554c491e4eb569e3902fce0973fae3f27e6c0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17820
Reviewed-by: David Neto <dneto@google.com>
2020-03-27 00:45:34 +00:00
dan sinclair 989cee6d33 Move tests into anonymous namespace.
This CL moves all test files to the anonymous namespace.

Change-Id: Ie5ae0efe907c03eeb441e90f31c976844172b594
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17900
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2020-03-26 15:31:43 +00:00
dan sinclair f26d9a8f26 Cleanup doc and lint warnings.
This CL fixes up several documentation and linter warnings.

Change-Id: Ic367ba1937f20dfe47a8c8e4035c17e8a3d0f2e8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17880
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2020-03-26 15:31:36 +00:00
dan sinclair 33d34650e8 [spirv-writer] Emit function signatures.
This CL updates the SPIR-V writer to emit the OpTypeFunction and
OpFunction instructions.

Bug: tint:5
Change-Id: I85ead161ca37304a977213257a825ff268d29f2d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17741
Reviewed-by: David Neto <dneto@google.com>
2020-03-25 19:43:20 +00:00
dan sinclair 9981b63fa4 Use a context object instead of a singleton
This Cl replaces the TypeManager singleton with a context object.

Bug: tint:29
Change-Id: Ia662709db1b562c34955633977ce4363f28f238e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17780
Reviewed-by: David Neto <dneto@google.com>
2020-03-25 19:16:36 +00:00
dan sinclair 0984214d8b [wgsl-writer] Add statement writer helper.
This CL adds a helper to emit a block of statements from the WGSL
writer.

Change-Id: I6fe62d894882c0a0fdc8865967bfa4887f3a65a3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17761
Reviewed-by: David Neto <dneto@google.com>
2020-03-25 18:54:01 +00:00
David Neto 5e6d033a9e [reader-spirv] Convert vector, matrix types
Bug: tint:3
Change-Id: I4857d36da65fce7a413258f33d7dc4f3d9501c9b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17702
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-25 14:33:45 +00:00
David Neto 71e1d81654 Add reader::spirv::ParserImpl::ConvertType
For now, it only handles scalar types

Bug: tint:3
Change-Id: Ic20e18a4f80790e6cd10d4c06dd2abfd8f67a304
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17700
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-24 21:42:16 +00:00
David Neto 6cd52e30ef Fix typo
Change-Id: Ic5845cff3e6e708ce88670f3d6038e339a94f33e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17660
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-24 19:55:29 +00:00
David Neto 7c6e8ded7d reader::spirv: Fix entry point test fixture name
Bug: tint:3
Change-Id: Ie7cd4f4f45b7be527b8d38a3dd76fac860a65ad8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17563
Reviewed-by: dan sinclair <dsinclair@google.com>
Commit-Queue: David Neto <dneto@google.com>
2020-03-24 14:39:02 +00:00
David Neto a65ea31910 reader::spirv fix entry point tests
Define the ID targeted by the entry point.  Do this to avoid
asserts in the optimizer code

Bug: tint:3
Change-Id: Idbd4c8a058f2d51ff44696d2029502044d01b424
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17562
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-24 12:46:20 +00:00
David Neto a14fec951e readers::spirv: Emit entry points
Bug: tint:3
Change-Id: I66b99ad6ecb3f409f9df7bfa9aa6c4da65e3f66b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17582
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-23 22:54:36 +00:00
David Neto 14cfcd707d Add conversion of SpvExecutionModel
Bug: tint:3
Change-Id: I2b1a12beea9343ab3a8db50308e2f6fd790c654b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17581
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-23 22:53:42 +00:00
David Neto 1ae8e85144 reader::spirv::Parser: register user names
Bug: tint:3
Change-Id: I4391aa733079d24fb19ff2cba9f612406e63a203
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17580
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-23 21:40:23 +00:00
David Neto 23dceb46fc Add reader::spv::ResolveMemberNamesForStruct
Bug: tint:3
Change-Id: If778e98416c19c518261c68d4afdfdc99724967f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17440
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-23 16:48:03 +00:00
David Neto ad90ee2ec3 Add reader::spirv:SuggestSanitizedMemberName
Also reader::spirv::GetMemberName

Bug: tint:3
Change-Id: I4cf2dce0703eb17a9d49452294ed0c28ea158a07
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17423
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-23 16:45:57 +00:00
David Neto ca8e6dd48d Add reader::spv::SuggestSanitizedName
Bug: tint:3
Change-Id: Ie53bbb7a0b2523a2098b485b6a5bb3d5fa4e52f9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17422
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-23 16:45:01 +00:00
David Neto 8af12f7503 Add reader::spv::Namer::FindUnusedDerivedName
Bug: tint:3
Change-Id: I0a0e5646d7bcdc89fdaaf8b956dd61ed6148c7e9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17421
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-23 16:43:41 +00:00
David Neto bd1d142134 Add reader::spv::Namer::Sanitize
Bug: tint:3
Change-Id: I4d554755dacecac0f2dacf191d85f8e339e87923
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17420
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-23 16:42:21 +00:00
David Neto d854fc1543 Rename method RegisterExtendedInstructionImports
Bug: tint:3
Change-Id: If92bd97f9a71bd676ba40430fd736cf721c38747
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17360
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-20 19:24:48 +00:00
David Neto be4c89a4d2 Add reader::spirv::Namer
A Namer is a place for saving and looking up names
based on SPIR-V IDs.

Bug: tint:3
Change-Id: I6aeb2f5f7ba63c2e0a816dcbac88f964beafabc6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17284
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-20 19:24:23 +00:00
David Neto 4a19eeff2c Fixing include-what-you-use in SPIR-V parser
Change-Id: If9eeb92dd50bd88e3dcc8b0a8966812a96a153a2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17287
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-18 20:32:49 +00:00
dan sinclair 4b71b9ed2b Expand build flags for Tint.
This CL extends the build options to Tint to make the various readers
and writers all optional.

Change-Id: I913e1830b1bb2243eff5deb4b8079ba592dd52e1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16801
Reviewed-by: David Neto <dneto@google.com>
2020-03-18 14:08:48 +00:00
dan sinclair e4392c9ab5 Create SPIR-V writer skeleton.
This CL creates the skeleton for the SPIR-V writer.

Bug: tint:5
Change-Id: I849d8766d32d48314a51096710272f9821e2c1c4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16641
Reviewed-by: David Neto <dneto@google.com>
2020-03-17 21:00:22 +00:00
David Neto 881cdede29 Fix include guards for SPV -> SPIRV
Bug: tint:3
Change-Id: I34a7c8e7dd0116968d2614441b3bcb81d7e5c4e7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17202
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-17 20:08:25 +00:00
David Neto 4df5d409c4 Rename tint::reader::spv -> tint::reader::spirv
Bug: tint:3
Change-Id: Iabee55bc75f60c04d00cd1560721def903052359
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17001
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-17 20:08:06 +00:00
David Neto 4e7f7da729 Rename reader/spv to reader/spirv
Bug: tint:3
Change-Id: I7707e2f9e51c1574e5dde18c83957573671dac70
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17000
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-17 20:07:41 +00:00
David Neto 3ac99398b5 spv: Parse OpExtInst for GLSL.std.450
It will always use the "std::glsl" import name.

Remember all the IDs of such imports.

Never add more than one GLSL.std.450 import to the AST.

Also refactor the Assemble test helper into its own file.

Bug: tint:3
Change-Id: I5b2b70ea0f00d44aacf553aa009756dff2a4cecf
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16662
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-17 16:14:10 +00:00
dan sinclair c83578038a Disable lint warnings in fail stream test.
This CL marks the specific `bool` test as NOLINT in fail_stream to stop
the linter from emitting errors.

Change-Id: Ifa3d9b0a2e0f06bcd0d48cbe79f8dbe91fe7b4ef
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17061
Reviewed-by: David Neto <dneto@google.com>
2020-03-17 16:13:31 +00:00
David Neto 9bb0dc543d spv: Build internal representation of the SPIR-V
For convenience, use the SPIRV-Tools' optimizer representation.

Bug: tint:3
Change-Id: I1b046209584e1e907045d496b0f8d7b36fca79bd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16660
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-13 20:21:45 +00:00
David Neto e5dc367a7e spv: reject invalid SPIR-V
Use the SPIRV-Tools validator, with the WebGPU0 environment.

Bug: tint:3
Change-Id: Id1132d209fd939ed68587034761e97da9b35b21d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16821
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-13 20:18:06 +00:00
David Neto 1ae7c7dba9 Add SPIR-V parser impl
The parser impl saves a copy of the SPIR-V binary.

Bug: tint:3
Change-Id: I5d61c87123c0bcb417d0c7004e0ef4e3c8fbb027
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16642
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-13 20:14:33 +00:00
David Neto ab0cdaf652 Add a FailStream error reporting helper
Bug: tint:3
Change-Id: Ie0bb2365a7dd6b2a5e9d0960593fac7586b02922
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16640
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-10 22:54:46 +00:00
David Neto f814bdc52a Add stub unit tests for spv parser
Bug: tint:3
Change-Id: I6957cddbdadbcf493fc8f1e3dbe0c6d9037dc56b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16620
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-10 22:54:31 +00:00
David Neto bbd8987e71 Instantiate a stubbed SPIR-V parser if file ends in .spv
- spv parser just errors out for now
- link against SPIRV-Tools-opt
- Fixe CMake variable TINT_ENABLE_SPV_PARSER --> TINT_BUILD_SPV_PARSER

Bug: tint:3
Change-Id: Ie4ef9b03e001fca3cc11f65a425612755857feac
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16600
Reviewed-by: dan sinclair <dsinclair@google.com>
2020-03-10 22:54:12 +00:00
Dan Sinclair 3a1368dead Add DecoratedVariable tests
This CL adds tests for decorated variable and updates the API to be
slightly nicer.

Bug: tint:11
Change-Id: I0bd5b8b6e6f682dc9d405e02e51d5dbcaeccc5f3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/16465
Commit-Queue: Sarah Mashayekhi <sarahmashay@google.com>
Reviewed-by: Sarah Mashayekhi <sarahmashay@google.com>
2020-03-10 17:47:56 +00:00
Dan Sinclair 6e581895a5 Initial commit 2020-03-02 15:47:43 -05:00