tree 949df633500b5a007a37be5fb2cd8f72b23150fa
parent 490bb34b291593a964043d1d5f40ed766cf77555
author John Stiles <johnstiles@google.com> 1643400560 -0500
committer SkCQ <skcq-be@skia-corp.google.com.iam.gserviceaccount.com> 1643645257 +0000

Update out-param semantics in SPIR-V.

Removed a special case from `writeFunctionCallArgument` which avoided
using a scratch variable for out params; now we always use the scratch
variable and copy it back to the original variable at the end.

Change-Id: I0e446a3fde6d19554943384210bd911f6f9c8cfa
Bug: skia:11052, skia:11919, skia:12858
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/501836
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>