tree 187d8f6204f6f01f65939229b1e454e9f2501861
parent f87b36a14c321656ed7e47621feb5f8b4f7df4f3
author Natalie Chouinard <chouinard@google.com> 1723054047 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1723054047 +0000

[tint][hlsl] Add subgroup(Exclusive){Add,Mul}

Implement subgroup(Exclusive)Add and Mul in the HLSL backend using
the following mapping:

+----------------------+-------------------+
|       Built-in       |       HLSL        |
+----------------------+-------------------+
| subgroupAdd          | WaveActiveSum     |
| subgroupExclusiveAdd | WavePrefixSum     |
| subgroupMul          | WaveActiveProduct |
| subgroupExclusiveMul | WavePrefixProduct |
+----------------------+-------------------+

Bug: 354738715
Change-Id: I9335fe5855217f257ba822ba3f6fa15a96adcaee
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/201234
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Commit-Queue: Natalie Chouinard <chouinard@google.com>