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Allow array size to be a module-scope constant Change ast::Array to use an ast::Expression for its `size` field. The WGSL frontend now parses the array size as an `primary_expression`, and the Resolver is responsible for validating the expression is a signed or unsigned integer, and either a literal or a non-overridable module-scope constant. The Resolver evaluates the constant value of the size expression, and so the resolved sem::Array type still has a constant size as before. Fixed: tint:1068 Fixed: tint:1117 Change-Id: Icfa141482ea1e47ea8c21a25e9eb48221f176e9a Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63061 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-02 13:49:59 +00:00
# Tint changes during Origin Trial
docs: Fix origin trial number The listed changes aren't going to land into M97, as M96 has already been cut. Change-Id: I7b636bf7a6da3b831ad8f121acd0f8c3f87a1423 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66381 Auto-Submit: Ben Clayton <bclayton@google.com> Commit-Queue: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: James Price <jrprice@google.com>
2021-10-14 03:17:32 +00:00
## Changes for M97
intrinsics: Remove deprecated modf & frexp overloads These have been deprecated for multiple chrome releases. Change-Id: I4cc05a74ff8f085e6d13f93aefb93077480e52f5 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66261 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: James Price <jrprice@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
2021-10-12 21:57:47 +00:00
### Breaking Changes
* Deprecated `modf()` and `frexp()` builtin overloads that take a pointer second parameter have been removed.
Allow array size to be a module-scope constant Change ast::Array to use an ast::Expression for its `size` field. The WGSL frontend now parses the array size as an `primary_expression`, and the Resolver is responsible for validating the expression is a signed or unsigned integer, and either a literal or a non-overridable module-scope constant. The Resolver evaluates the constant value of the size expression, and so the resolved sem::Array type still has a constant size as before. Fixed: tint:1068 Fixed: tint:1117 Change-Id: Icfa141482ea1e47ea8c21a25e9eb48221f176e9a Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63061 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-02 13:49:59 +00:00
## Changes for M95
### New Features
writer/spirv: Fix abs() on unsigned integers GLSLstd450SAbs expects a *signed* integer. abs() of an unsigned number is now a no-op. Fixes WebGPU CTS tests: webgpu:shader,execution,robust_access_vertex:vertex_buffer_access:* Bug: tint:1194 Change-Id: I65c5e9f2f03aac0b788b9ba88c383cbec136d7c6 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65620 Commit-Queue: Ben Clayton <bclayton@chromium.org> Kokoro: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
2021-10-01 08:41:55 +00:00
Allow array size to be a module-scope constant Change ast::Array to use an ast::Expression for its `size` field. The WGSL frontend now parses the array size as an `primary_expression`, and the Resolver is responsible for validating the expression is a signed or unsigned integer, and either a literal or a non-overridable module-scope constant. The Resolver evaluates the constant value of the size expression, and so the resolved sem::Array type still has a constant size as before. Fixed: tint:1068 Fixed: tint:1117 Change-Id: Icfa141482ea1e47ea8c21a25e9eb48221f176e9a Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63061 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-02 13:49:59 +00:00
* The size of an array can now be defined using a non-overridable module-scope constant
Implement and test num_workgroups for all backends For HLSL, use the new NumWorkgroupsFromUniform transform, and expose the binding point to use for the generated uniform as a backend option. The MSL mapping is trivial, and it was already implemented for WGSL and SPIR-V. Bug: tint:752 Change-Id: I4bd37b5d26181629d72b152fe064a60caf8ecdc5 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63962 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-13 17:11:58 +00:00
* The `num_workgroups` builtin is now supported.
wgsl-reader: hex float: zero mantissa results in zero result When the magnitude is zero, then we don't care about the magnitude of the exponent. The result value is always zero, without emitting an error. Fixed: tint:1166 Change-Id: I303d7c336e7ea42719571854f0a22cbfd19da32c Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63520 Kokoro: Kokoro <noreply+kokoro@google.com> Auto-Submit: David Neto <dneto@google.com> Reviewed-by: Antonio Maiorano <amaiorano@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-09-08 13:46:51 +00:00
### Fixes
writer/spirv: Fix abs() on unsigned integers GLSLstd450SAbs expects a *signed* integer. abs() of an unsigned number is now a no-op. Fixes WebGPU CTS tests: webgpu:shader,execution,robust_access_vertex:vertex_buffer_access:* Bug: tint:1194 Change-Id: I65c5e9f2f03aac0b788b9ba88c383cbec136d7c6 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65620 Commit-Queue: Ben Clayton <bclayton@chromium.org> Kokoro: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
2021-10-01 08:41:55 +00:00
* 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)
intrinsics: Remove deprecated modf & frexp overloads These have been deprecated for multiple chrome releases. Change-Id: I4cc05a74ff8f085e6d13f93aefb93077480e52f5 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66261 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: James Price <jrprice@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
2021-10-12 21:57:47 +00:00
* Identifiers beginning with an underscore are now correctly rejected. [tint:1179](https://crbug.com/tint/1179)
writer/spirv: Fix abs() on unsigned integers GLSLstd450SAbs expects a *signed* integer. abs() of an unsigned number is now a no-op. Fixes WebGPU CTS tests: webgpu:shader,execution,robust_access_vertex:vertex_buffer_access:* Bug: tint:1194 Change-Id: I65c5e9f2f03aac0b788b9ba88c383cbec136d7c6 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65620 Commit-Queue: Ben Clayton <bclayton@chromium.org> Kokoro: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
2021-10-01 08:41:55 +00:00
* `abs()` fixed for unsigned integers on SPIR-V backend [tint:1179](https://crbug.com/tint/1194)