Roll third_party/SwiftShader ceb6258ae101..5ab1f36a38aa (12 commits)
Roll third_party/SwiftShader ceb6258ae101..5ab1f36a38aa (12 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/ceb6258ae101..5ab1f36a38aa

git log ceb6258ae101..5ab1f36a38aa --date=short --first-parent --format='%ad %ae %s'
2020-04-22 capn@google.com Fix specializing graphics routines for the pipeline layout
2020-04-22 bclayton@google.com SpirvShader: Add a flag for printing SPIRV execution
2020-04-22 bclayton@google.com Regres: Write logs to /dev/null
2020-04-22 amaiorano@google.com CMake: use target_compile_options/definitions for llvm
2020-04-22 amaiorano@google.com CMake: use target_link_options
2020-04-22 amaiorano@google.com CMake: require version 3.13
2020-04-22 amaiorano@google.com Kokoro: update CMake to latest version
2020-04-22 bclayton@google.com Regres: Limit the default number of threads to 100
2020-04-22 capn@google.com Pass only descriptor data to shader execution
2020-04-22 capn@google.com Reduce descriptor binding info exposure
2020-04-22 bclayton@google.com Kokoro: Fix ubuntu bots.
2020-04-22 digit@google.com Vulkan: Fix Fuchsia external semaphore fix tryWait().

Created with:
  gclient setdep -r third_party/SwiftShader@5ab1f36a38aa

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-angle-autoroll
Please CC c15ba1c6ec8841cd136fafb26b333b1f76c86fb4@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

Bug: None
Tbr: c15ba1c6ec8841cd136fafb26b333b1f76c86fb4@google.com
Change-Id: Iaecb86196fbe0915facf2e921b816699cb582bc4
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2162331
Reviewed-by: angle-autoroll <09ea9b8bac6cceb6ec3b72e615745c3a1e982ce2@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <09ea9b8bac6cceb6ec3b72e615745c3a1e982ce2@skia-public.iam.gserviceaccount.com>

ppy/angle,ppy/angle,ppy/angle,ppy/angle