Roll SwiftShader from 0915ab4bddf7 to cbd31d271e4c (3 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/0915ab4bddf7..cbd31d271e4c

2022-02-09 sugoi@google.com Dynamic state refactor
2022-02-09 sugoi@google.com VK_EXT_subgroup_size_control support
2022-02-09 capn@google.com Add compute benchmarks

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-skia-autoroll
Please CC herb@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in SwiftShader: https://bugs.chromium.org/p/swiftshader/issues/entry
To file a bug in Skia: https://bugs.chromium.org/p/skia/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Cq-Include-Trybots: skia/skia.primary:Test-Debian10-Clang-GCE-GPU-SwiftShader-x86_64-Debug-All-SwiftShader
Bug: None
Tbr: herb@google.com
Change-Id: I9edb1d949bd248dbe3c934ad8dcf6f7e12eb5ef9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/506599
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 150e427..7d5247f 100644
--- a/DEPS
+++ b/DEPS
@@ -42,7 +42,7 @@
   "third_party/externals/spirv-cross"     : "https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Cross@0e2880ab990e79ce6cc8c79c219feda42d98b1e8",
   "third_party/externals/spirv-headers"   : "https://skia.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers.git@814e728b30ddd0f4509233099a3ad96fd4318c07",
   "third_party/externals/spirv-tools"     : "https://skia.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git@4b092d2ab81854e61632bdd1e658907f0071c37e",
-  "third_party/externals/swiftshader"     : "https://swiftshader.googlesource.com/SwiftShader@0915ab4bddf7af616d3882884c5c056442f063a5",
+  "third_party/externals/swiftshader"     : "https://swiftshader.googlesource.com/SwiftShader@cbd31d271e4cedc709192d02b946aee9cdfe4653",
   #"third_party/externals/v8"              : "https://chromium.googlesource.com/v8/v8.git@5f1ae66d5634e43563b2d25ea652dfb94c31a3b4",
   "third_party/externals/wuffs"           : "https://skia.googlesource.com/external/github.com/google/wuffs-mirror-release-c.git@600cd96cf47788ee3a74b40a6028b035c9fd6a61",
   "third_party/externals/zlib"            : "https://chromium.googlesource.com/chromium/src/third_party/zlib@c876c8f87101c5a75f6014b0f832499afeb65b73",