Commit Graph

3 Commits

Author SHA1 Message Date
Ben Clayton 51cfe26bb7 writer/hlsl: Simplify UBO accesses for static indexing
Use the new semantic constant value information to significantly reduce the complex indexing logic emitted for UBO accesses.
This will dramatically reduce the number of `for` loops that are decayed to `while` loops.

Change-Id: I1b0adb5edde2b4ed39c6beafc2e28106b86e0edd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57701
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-07-13 12:18:13 +00:00
Ben Clayton 1b03f0a07a reader/wgsl: Generate ForLoopStatements
Instead of LoopStatements.

Update the writers to handle these.

Fixed: tint:952
Change-Id: Ibef66e133224810efc28c224d910b5e21f71f8d6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57203
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-07-08 21:23:33 +00:00
Ben Clayton b4ff73e250 [hlsl] transform: Zero init arrays with a loop
If the array size is greater than a threshold.
This is a work around for FXC stalling when initializing large arrays
with a single zero-init assignment.

Bug: tint:936
Fixed: tint:943
Fixed: tint:942
Change-Id: Ie93c8f373874b8d6d020d041fa48b38fb1352f71
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56775
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-07-05 17:18:16 +00:00