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James Price	4cc4315	2021-09-02 13:49:59 +0000	[diff] [blame]	1	# Tint changes during Origin Trial
				2
dan sinclair	f374b81	2023-01-30 15:34:49 +0000	[diff] [blame]	3	## Changes for M112
				4
				5	### Breaking changes
				6
Ben Clayton	b549b30	2023-02-22 16:18:22 +0000	[diff] [blame]	7	* Most builtin functions that return a value can no longer be used as a call statement. [tint:1844](crbug.com/tint/1844)
James Price	d9c0f21	2023-02-07 19:40:01 +0000	[diff] [blame]	8	* The `sig` member of the return type of `frexp()` has been renamed to `fract`. [tint:1766](crbug.com/tint/1766)
				9	* Calling a function with multiple pointer arguments that alias each other is now a error. [tint:1675](crbug.com/tint/1675)
dan sinclair	2157170	2023-02-21 16:55:07 +0000	[diff] [blame]	10	* `type` deprecation has been removed. `alias` must be used now. [tint:1812](crbug.com/tint/1812)
dan sinclair	b92ff39	2023-02-21 18:44:16 +0000	[diff] [blame]	11	* `static_assert` deprecation has been removed. `const_assert` must now be used. [tint:1807](crbug.com/tint/1807)
dan sinclair	f374b81	2023-01-30 15:34:49 +0000	[diff] [blame]	12
Ben Clayton	9dc48bc	2023-01-24 14:55:17 +0000	[diff] [blame]	13	## Changes for M111
				14
James Price	b4049dc	2023-01-26 13:02:59 +0000	[diff] [blame]	15	### New features
				16
				17	* The `workgroupUniformLoad` builtin function is now supported. [tint:1780](crbug.com/tint/1780)
				18	* The `diagnostic` directive and `@diagnostic` attribute are now supported. [tint:1809](crbug.com/tint/1809)
				19	* The attribute is currently only supported on function declarations.
				20
Ben Clayton	41884e4	2023-01-24 19:32:04 +0000	[diff] [blame]	21	### Breaking changes
				22
				23	* You may need to add parentheses to less-than or greater-than binary expressions that now parse as template lists. For example `a(b<c, d>e)` will need parentheses around `b<c` or `d>e`. [tint:1810](crbug.com/tint/1810).
James Price	b4049dc	2023-01-26 13:02:59 +0000	[diff] [blame]	24	* Uniformity analysis failures are now an error [tint:880](crbug.com/tint/880)
				25	* The `derivative_uniformity` diagnostic filter can be used to modify the severity if needed.
Ben Clayton	41884e4	2023-01-24 19:32:04 +0000	[diff] [blame]	26
Ben Clayton	9dc48bc	2023-01-24 14:55:17 +0000	[diff] [blame]	27	## Deprecated Features
				28
				29	* The keyword to alias a type has been renamed from `type` to `alias`. [tint:1812](crbug.com/tint/1812)
Ben Clayton	c98d57d	2023-01-24 14:59:43 +0000	[diff] [blame]	30	* `static_assert` has been renamed to `const_assert`. [tint:1807](crbug.com/tint/1807)
Ben Clayton	9dc48bc	2023-01-24 14:55:17 +0000	[diff] [blame]	31
Ben Clayton	10fae7a	2022-11-14 15:29:29 +0000	[diff] [blame]	32	## Changes for M110
				33
Ben Clayton	543dd18	2022-11-18 11:17:41 +0000	[diff] [blame]	34	### Breaking changes
				35
				36	* The `textureSampleLevel()` overload for `texture_external` has been removed. Use `textureSampleBaseClampToEdge()`. [tint:1671](crbug.com/tint/1671)
				37
Ben Clayton	10fae7a	2022-11-14 15:29:29 +0000	[diff] [blame]	38	### Deprecated Features
				39
				40	* The `sig` member of the return type of `frexp()` has been renamed to `fract`. [tint:1757](crbug.com/tint/1757)
James Price	4d65fc9	2022-11-17 17:27:27 +0000	[diff] [blame]	41	* Calling a function with multiple pointer arguments that alias each other is now a warning, and
				42	will become an error in a future release. [tint:1675](crbug.com/tint/1675)
Ben Clayton	10fae7a	2022-11-14 15:29:29 +0000	[diff] [blame]	43
Antonio Maiorano	0640c81	2022-10-26 00:27:38 +0000	[diff] [blame]	44	## Changes for M109
				45
Ben Clayton	13f0890	2022-10-26 18:36:44 +0000	[diff] [blame]	46	### Breaking changes
				47
				48	* `textureDimensions()`, `textureNumLayers()` and `textureNumLevels()` now return unsigned integers / vectors. [tint:1526](crbug.com/tint/1526)
dan sinclair	f218af0	2022-11-07 11:34:34 +0000	[diff] [blame]	49	* The `@stage` attribute has been removed. The short forms should be used
				50	instead (`@vertex`, `@fragment`, or `@compute`). [tint:1503](crbug.com/tint/1503)
dan sinclair	3b2b548	2022-11-07 14:20:33 +0000	[diff] [blame]	51	* Module-scope `let` is now an error. Use module-scope `const` instead. [tint:1580](crbug.com/tint/1584)
dan sinclair	5071a54	2022-11-07 16:15:55 +0000	[diff] [blame]	52	* Reserved words are now an error instead of a deprecation. [tint:1463](crbug.com/tint/1463)
Ben Clayton	55a8eac	2022-11-09 20:11:43 +0000	[diff] [blame]	53	* You may no longer use pointer parameters in `workgroup` address space. [tint:1721](crbug.com/tint/1721)
Ben Clayton	13f0890	2022-10-26 18:36:44 +0000	[diff] [blame]	54
Antonio Maiorano	0640c81	2022-10-26 00:27:38 +0000	[diff] [blame]	55	### New features
				56
				57	* Uniformity analysis failures are warnings again [tint:1728](crbug.com/tint/1728)
Ben Clayton	2e376a9	2022-10-26 18:47:02 +0000	[diff] [blame]	58	* You can now call texture builtins with a mix of signed and unsigned integer arguments. [tint:1733](crbug.com/tint/1733)
Antonio Maiorano	0640c81	2022-10-26 00:27:38 +0000	[diff] [blame]	59
Ben Clayton	c4ebf2c	2022-09-22 22:59:16 +0000	[diff] [blame]	60	## Changes for M108
				61
				62	### New features
				63
				64	* `textureSampleBaseClampToEdge()` has been implemented. [tint:1671](crbug.com/tint/1671)
				65
				66	### Deprecated Features
				67
				68	* The `external_texture` overload of `textureSampleLevel()` has been deprecated. Use `textureSampleBaseClampToEdge()` instead. [tint:1671](crbug.com/tint/1671)
				69
Ben Clayton	75bc93c	2022-10-11 20:36:48 +0000	[diff] [blame]	70	### Fixes
				71
				72	* Constant evaluation of type conversions where the value exceeds the limits of the target type have been fixed. [tint:1707](crbug.com/tint/1707)
				73
Ben Clayton	4d8fa43	2022-09-21 13:20:13 +0000	[diff] [blame]	74	## Changes for M107
				75
				76	### New features
				77
				78	* `saturate()` has been implemented. [tint:1591](crbug.com/tint/1591)
				79
				80	### Breaking changes
				81
Ben Clayton	4c70d7f	2022-09-26 12:30:05 +0000	[diff] [blame]	82	* Uniformity analysis failures are now an error [tint:880](crbug.com/tint/880)
Ben Clayton	4d8fa43	2022-09-21 13:20:13 +0000	[diff] [blame]	83	* Indexing an array, vector or matrix with a compile-time expression that's out-of-bounds is now an error [tint:1665](crbug.com/tint/1665)
				84
Ben Clayton	cae5547	2022-08-02 16:14:25 +0000	[diff] [blame]	85	## Changes for M106
				86
				87	### New features
				88
				89	* `array()` constructor can now infer type and count. [tint:1628](crbug.com/tint/1628)
Ben Clayton	f795308	2022-08-03 12:12:25 +0000	[diff] [blame]	90	* `static_assert` statement has been added. [tint:1625](crbug.com/tint/1625)
Ben Clayton	f3d9ea4	2022-09-13 22:47:12 +0000	[diff] [blame]	91
dan sinclair	0e141c2	2022-08-03 14:34:16 +0000	[diff] [blame]	92	### Deprecated Features
				93
				94	* The list of reserved words has been sync'd to the WGSL specification. [tint:1463](crbug.com/tint/1463)
				95
dan sinclair	0fa572f	2022-06-09 15:33:42 +0000	[diff] [blame]	96	## Changes for M105
				97
Ben Clayton	53af158	2022-06-28 12:53:56 +0000	[diff] [blame]	98	### New features
				99
				100	* Module-scope `var<private>` can now infer the storage type, like function-scope `var`. [tint:1584](crbug.com/tint/1584)
dan sinclair	d23f296	2022-06-28 15:27:44 +0000	[diff] [blame]	101	* The `acosh`, `asinh`, and `atanh` builtin functions are now supported [tint:1465](crbug.com/tint/1465)
Ben Clayton	53af158	2022-06-28 12:53:56 +0000	[diff] [blame]	102
James Price	3e38d7e	2022-06-15 23:32:14 +0000	[diff] [blame]	103	### Breaking changes
				104
				105	* The `smoothStep()` builtin has been removed (use `smoothstep` instead). [tint:1483](crbug.com/tint/1483)
Ben Clayton	c64ca23	2022-06-29 00:55:36 +0000	[diff] [blame]	106	* Module-scope `let` has been replaced with module-scope `const`. [tint:1580](crbug.com/tint/1584)
				107	* Note: Module-scope `const` does not support structure types. Use `var<private>` if you need a module-scope structure type.
dan sinclair	cfa951a	2022-07-04 16:58:00 +0000	[diff] [blame]	108	* Struct members can no longer be separated with semicolons (use commas instead). [tint:1475](crbug.com/tint/1475)
Ben Clayton	f19cb02	2022-07-15 15:25:30 +0000	[diff] [blame]	109	* Single scalar matrix constructors have been removed. These were never part of the WGSL spec. [tint:1597](crbug.com/tint/1597)
James Price	3e38d7e	2022-06-15 23:32:14 +0000	[diff] [blame]	110
dan sinclair	0fa572f	2022-06-09 15:33:42 +0000	[diff] [blame]	111	### Deprecated Features
				112
				113	* The `@stage` attribute has been deprecated. The short forms should be used
				114	instead (`@vertex`, `@fragment`, or `@compute`). [tint:1503](crbug.com/tint/1503)
				115
				116	## Changes for M104
				117
Ben Clayton	8174713	2022-06-09 16:45:05 +0000	[diff] [blame]	118	### New features
				119
				120	* Tint now supports abstract-numerics, removing the need to always suffix unsigned integers with `u` [tint:1504](crbug.com/tint/1504)
dan sinclair	0fa572f	2022-06-09 15:33:42 +0000	[diff] [blame]	121	* Parsing of `@compute`, `@fragment` and `@vertex` added.
				122
James Price	be656f7	2022-05-11 22:05:15 +0000	[diff] [blame]	123	## Changes for M103
				124
				125	### New features
				126
				127	* Produce warnings for when calling barriers, textureSample, and derivative
				128	builtins in non-uniform control flow [tint:880](crbug.com/tint/880)
Ben Clayton	3b5edf1	2022-05-16 21:14:11 +0000	[diff] [blame]	129	* Matrix identity constructors and constructors for a single scalar value are now supported [tint:1545](crbug.com/tint/1545)
James Price	be656f7	2022-05-11 22:05:15 +0000	[diff] [blame]	130
Antonio Maiorano	6ac7c8a	2022-05-31 22:35:49 +0000	[diff] [blame]	131	### Breaking changes
Ben Clayton	8174713	2022-06-09 16:45:05 +0000	[diff] [blame]	132
Antonio Maiorano	6ac7c8a	2022-05-31 22:35:49 +0000	[diff] [blame]	133	* Builtin `atomicCompareExchangeWeak` returns a struct instead of a vec2. [tint:1185](crbug.com/tint/1185)
				134
James Price	8bcecf3	2022-03-21 16:09:17 +0000	[diff] [blame]	135	## Changes for M102
				136
James Price	d9d08ae	2022-03-23 09:11:03 +0000	[diff] [blame]	137	### New Features
				138
				139	* Parentheses are no longer required around expressions for if and switch statements [tint:1424](crbug.com/tint/1424)
James Price	e47b313	2022-03-31 22:30:10 +0000	[diff] [blame]	140	* Compound assignment statements are now supported. [tint:1325](https://crbug.com/tint/1325)
James Price	d68d3a9	2022-04-07 13:42:45 +0000	[diff] [blame]	141	* Postfix increment and decrement statements are now supported. [tint:1488](crbug.com/tint/1488)
James Price	e6c7fd7	2022-04-05 21:01:09 +0000	[diff] [blame]	142	* The colon in case statements is now optional. [tint:1485](crbug.com/tint/1485)
James Price	d9d08ae	2022-03-23 09:11:03 +0000	[diff] [blame]	143
James Price	8bcecf3	2022-03-21 16:09:17 +0000	[diff] [blame]	144	### Breaking changes
				145
James Price	3b671cb	2022-03-28 14:31:22 +0000	[diff] [blame]	146	* Struct members are now separated by commas. [tint:1475](crbug.com/tint/1475)
James Price	8bcecf3	2022-03-21 16:09:17 +0000	[diff] [blame]	147	* The `@block` attribute has been removed. [tint:1324](crbug.com/tint/1324)
James Price	dfc1a2c	2022-03-21 16:09:17 +0000	[diff] [blame]	148	* The `@stride` attribute has been removed. [tint:1381](crbug.com/tint/1381)
James Price	6bd90d6	2022-03-21 16:09:17 +0000	[diff] [blame]	149	* Attributes using `[[attribute]]` syntax are no longer supported. [tint:1382](crbug.com/tint/1382)
James Price	7d38b88	2022-03-21 16:09:17 +0000	[diff] [blame]	150	* The `elseif` keyword is no longer supported. [tint:1289](crbug.com/tint/1289)
James Price	8bcecf3	2022-03-21 16:09:17 +0000	[diff] [blame]	151
James Price	e6c7609	2022-03-30 17:57:39 +0000	[diff] [blame]	152	### Deprecated Features
				153
				154	* The `smoothStep()` builtin has been renamed to `smoothstep()`. [tint:1483](crbug.com/tint/1483)
				155
James Price	3fac602	2022-02-18 21:47:24 +0000	[diff] [blame]	156	## Changes for M101
				157
				158	### New Features
				159
				160	* Tint now supports unicode identifiers. [tint:1437](crbug.com/tint/1437)
				161
James Price	bcd9ad2	2022-03-05 00:39:14 +0000	[diff] [blame]	162	### Breaking changes
				163
				164	* The `isNan()`, `isInf()`, `isFinite()`, and `isNormal()` builtins have been removed. [tint:1312](https://crbug.com/tint/1312)
				165
James Price	1c02eb8	2022-01-25 01:01:39 +0000	[diff] [blame]	166	## Changes for M100
				167
				168	### Breaking changes
				169
				170	* The `@interpolate(flat)` attribute must now be specified on integral user-defined IO. [tint:1224](crbug.com/tint/1224)
Ben Clayton	b80e2f3	2022-02-01 17:21:52 +0000	[diff] [blame]	171	* The `ignore()` intrinsic has been removed. Use phoney-assignment instead: `ignore(expr);` -> `_ = expr;`.
Ben Clayton	8250f2b	2022-02-03 00:12:52 +0000	[diff] [blame]	172	* `break` statements in `continuing` blocks are now correctly validated.
James Price	1c02eb8	2022-01-25 01:01:39 +0000	[diff] [blame]	173
Ben Clayton	f1d570a	2022-02-14 21:56:06 +0000	[diff] [blame]	174	### New Features
				175
				176	* Module-scope declarations can now be declared in any order. [tint:1266](crbug.com/tint/1266)
James Price	d0ec88c	2022-02-15 16:36:57 +0000	[diff] [blame]	177	* The `override` keyword and `@id()` attribute for pipeline-overridable constants are now supported, replacing the `@override` attribute. [tint:1403](crbug.com/tint/1403)
Ben Clayton	f1d570a	2022-02-14 21:56:06 +0000	[diff] [blame]	178
Ben Clayton	30d55fa	2021-12-09 22:53:14 +0000	[diff] [blame]	179	## Changes for M99
				180
Ben Clayton	e5919ac	2022-01-14 17:16:32 +0000	[diff] [blame]	181	### Breaking changes
				182
				183	Obviously infinite loops (no condition, no break) are now a validation error.
				184
Ben Clayton	30d55fa	2021-12-09 22:53:14 +0000	[diff] [blame]	185	### Deprecated Features
				186
Ben Clayton	1372222	2022-01-04 20:06:49 +0000	[diff] [blame]	187	The following features have been deprecated and will be removed in M102:
				188
				189	* The `[[block]]` attribute has been deprecated. [tint:1324](https://crbug.com/tint/1324)
Ben Clayton	01e4b6f	2022-01-19 22:46:57 +0000	[diff] [blame]	190	* Attributes now use the `@decoration` syntax instead of the `[[decoration]]` syntax. [tint:1382](https://crbug.com/tint/1382)
				191	* `elseif` has been replaced with `else if`. [tint:1289](https://crbug.com/tint/1289)
James Price	f6e5cc0	2022-01-20 22:11:07 +0000	[diff] [blame]	192	* The `[[stride]]` attribute has been deprecated. [tint:1381](https://crbug.com/tint/1381)
Ben Clayton	30d55fa	2021-12-09 22:53:14 +0000	[diff] [blame]	193
				194	### New Features
				195
				196	* Vector and matrix element type can now be inferred from constructor argument types. [tint:1334](https://crbug.com/tint/1334)
Ben Clayton	5c99ed0	2022-01-05 20:11:00 +0000	[diff] [blame]	197	* Added builtins `degrees()` and `radians()` for converting between degrees and radians. [tint:1329](https://crbug.com/tint/1329)
Ben Clayton	3cbb136	2022-01-06 18:11:01 +0000	[diff] [blame]	198	* `let` arrays and matrices can now be dynamically indexed. [tint:1352](https://crbug.com/tint/1352)
James Price	ecf43d6	2022-01-19 15:55:56 +0000	[diff] [blame]	199	* Storage and Uniform buffer types no longer have to be structures. [tint:1372](crbug.com/tint/1372)
James Price	6b1e5f5	2022-01-19 18:11:17 +0000	[diff] [blame]	200	* A struct declaration does not have to be followed by a semicolon. [tint:1380](crbug.com/tint/1380)
Ben Clayton	30d55fa	2021-12-09 22:53:14 +0000	[diff] [blame]	201
Ben Clayton	e4e7485	2022-01-06 21:32:41 +0000	[diff] [blame]	202	### Fixes
				203
				204	* Fixed an issue where for-loops that contain array or structure constructors in the loop initializer statements, condition expressions or continuing statements could fail to compile. [tint:1364](https://crbug.com/tint/1364)
				205
James Price	85170d7	2021-11-04 19:55:57 +0000	[diff] [blame]	206	## Changes for M98
				207
				208	### Breaking Changes
				209
				210	* Taking the address of a vector component is no longer allowed.
Ben Clayton	0ea236f	2021-11-26 09:56:19 +0000	[diff] [blame]	211	* Module-scope declarations can no longer alias a builtin name. [tint:1318](https://crbug.com/tint/1318)
Ben Clayton	ea3eee9	2021-12-03 17:51:48 +0000	[diff] [blame]	212	* It is now an error to call a function either directly or transitively, from a loop continuing block, that uses `discard`. [tint:1302](https://crbug.com/tint/1302)
James Price	85170d7	2021-11-04 19:55:57 +0000	[diff] [blame]	213
Ben Clayton	a40e455	2021-11-23 18:57:57 +0000	[diff] [blame]	214	### Deprecated Features
				215
				216	* The `isNan()`, `isInf()`, `isFinite()` and `isNormal()` builtins has been deprecated and will be removed in M101. [tint:1312](https://crbug.com/tint/1312)
				217
Ben Clayton	189dc7d	2021-11-05 18:37:16 +0000	[diff] [blame]	218	### New Features
				219
Ben Clayton	3703522	2021-12-08 19:54:08 +0000	[diff] [blame]	220	* New texture gather builtins: `textureGather()` and `textureGatherCompare()`. [tint:1330](https://crbug.com/tint/1330)
Ben Clayton	b05e185	2021-11-23 20:45:51 +0000	[diff] [blame]	221	* Shadowing is now fully supported. [tint:819](https://crbug.com/tint/819)
Ben Clayton	189dc7d	2021-11-05 18:37:16 +0000	[diff] [blame]	222	* The `dot()` builtin now supports integer vector types.
Ben Clayton	177e7bf	2021-11-22 15:24:16 +0000	[diff] [blame]	223	* Identifiers can now start with a single leading underscore. [tint:1292](https://crbug.com/tint/1292)
Ben Clayton	ea3eee9	2021-12-03 17:51:48 +0000	[diff] [blame]	224	* Control flow analysis has been improved, and functions no longer need to `return` if the statement is unreachable. [tint:1302](https://crbug.com/tint/1302)
				225	* Unreachable statements now produce a warning instead of an error, to allow WGSL code to be updated to the new analysis behavior. These warnings may become errors in the future [gpuweb#2378](https://github.com/gpuweb/gpuweb/issues/2378)
Ben Clayton	189dc7d	2021-11-05 18:37:16 +0000	[diff] [blame]	226
Ben Clayton	d1f0a14	2021-11-23 21:46:48 +0000	[diff] [blame]	227	### Fixes
				228
				229	* Fixed an issue where using a module-scoped `let` in a `workgroup_size` may result in a compilation error. [tint:1320](https://crbug.com/tint/1320)
				230
Ben Clayton	11c9656	2021-10-14 03:17:32 +0000	[diff] [blame]	231	## Changes for M97
Ben Clayton	2aa6855	2021-10-12 21:57:47 +0000	[diff] [blame]	232
				233	### Breaking Changes
				234
				235	* Deprecated `modf()` and `frexp()` builtin overloads that take a pointer second parameter have been removed.
Ben Clayton	f3f2d0a	2021-10-14 10:10:45 +0000	[diff] [blame]	236	* Deprecated texture builtin functions that accepted a `read` access controlled storage texture have been removed.
				237	* Storage textures must now only use the `write` access control.
Ben Clayton	2aa6855	2021-10-12 21:57:47 +0000	[diff] [blame]	238
Ben Clayton	7b776f1	2021-10-22 06:23:12 +0000	[diff] [blame]	239	### Deprecated Features
				240
				241	* The `ignore()` builtin has been replaced with phony-assignment. [gpuweb#2127](https://github.com/gpuweb/gpuweb/pull/2127)
				242
Ben Clayton	8cab28c	2021-10-21 09:39:13 +0000	[diff] [blame]	243	### New Features
				244
				245	* `any()` and `all()` now support a `bool` parameter. These simply return the passed argument. [tint:1253](https://crbug.com/tint/1253)
Ben Clayton	72789de	2021-10-21 20:36:04 +0000	[diff] [blame]	246	* Call statements may now include functions that return a value (`ignore()` is no longer needed).
James Price	a41694e	2021-10-21 23:08:44 +0000	[diff] [blame]	247	* The `interpolate(flat)` attribute can now be specified on integral user-defined IO. It will eventually become an error to define integral user-defined IO without this attribute.
James Price	91689fb	2021-10-25 19:20:31 +0000	[diff] [blame]	248	* Matrix construction from scalar element values is now supported.
Ben Clayton	8cab28c	2021-10-21 09:39:13 +0000	[diff] [blame]	249
Ben Clayton	7103f51	2021-10-20 16:12:33 +0000	[diff] [blame]	250	### Fixes
				251
				252	* Swizzling of `vec3` types in `storage` and `uniform` buffers has been fixed for Metal 1.x. [tint:1249](https://crbug.com/tint/1249)
Ben Clayton	33c13c6	2021-10-25 11:00:44 +0000	[diff] [blame]	253	* Calling a function that returns an unused value no longer produces an FXC compilation error. [tint:1259](https://crbug.com/tint/1259)
Ben Clayton	7dc901f	2022-01-05 21:03:10 +0000	[diff] [blame]	254	* `abs()` fixed for unsigned integers on SPIR-V backend
Ben Clayton	7103f51	2021-10-20 16:12:33 +0000	[diff] [blame]	255
James Price	4cc4315	2021-09-02 13:49:59 +0000	[diff] [blame]	256	## Changes for M95
				257
				258	### New Features
Ben Clayton	5e35864	2021-10-01 08:41:55 +0000	[diff] [blame]	259
James Price	4cc4315	2021-09-02 13:49:59 +0000	[diff] [blame]	260	* The size of an array can now be defined using a non-overridable module-scope constant
James Price	922fce7	2021-09-13 17:11:58 +0000	[diff] [blame]	261	* The `num_workgroups` builtin is now supported.
David Neto	be514a1	2021-09-08 13:46:51 +0000	[diff] [blame]	262
				263	### Fixes
David Neto	be514a1	2021-09-08 13:46:51 +0000	[diff] [blame]	264
Ben Clayton	5e35864	2021-10-01 08:41:55 +0000	[diff] [blame]	265	* Hex floats: now correctly errors when the magnitude is non-zero, and the exponent would cause overflow. [tint:1150](https://crbug.com/tint/1150), [tint:1166](https://crbug.com/tint/1166)
Ben Clayton	2aa6855	2021-10-12 21:57:47 +0000	[diff] [blame]	266	* Identifiers beginning with an underscore are now correctly rejected. [tint:1179](https://crbug.com/tint/1179)