Roll third_party/externals/swiftshader c4bbd378e95b..baa10d7b1dee (3 commits)
Roll third_party/externals/swiftshader c4bbd378e95b..baa10d7b1dee (3 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/c4bbd378e95b..baa10d7b1dee

git log c4bbd378e95b..baa10d7b1dee --date=short --first-parent --format='%ad %ae %s'
2020-05-05 swiftshader.regress@gmail.com Regres: Update test lists @ 6ce626b4
2020-05-05 bclayton@google.com Regres: Don't nuke the daily test dir before using the test results
2020-05-05 bclayton@google.com CMake: Only build turbo-cov with clang + llvm 10

Created with:
  gclient setdep -r third_party/externals/swiftshader@baa10d7b1dee

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 61fabaaf0876044aeedfd8e351e485c028d69e7b@google.com on the revert to ensure that a human
is aware of the problem.

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/+/master/autoroll/README.md

Cq-Include-Trybots: skia/skia.primary:Test-Debian10-Clang-GCE-GPU-SwiftShader-x86_64-Debug-All-SwiftShader
Bug: None
Tbr: 61fabaaf0876044aeedfd8e351e485c028d69e7b@google.com
Change-Id: Icd4de3b5e6307838e57e26427af12f5bb4832e37
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/288018
Reviewed-by: skia-autoroll <e034c62197df5622a9c1bef8b3e012f87a0a9840@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <e034c62197df5622a9c1bef8b3e012f87a0a9840@skia-public.iam.gserviceaccount.com>

google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,google/skia,google/skia