Roll third_party/swiftshader/ 8def9063c..bdfcfe9cf (11 commits)

https://swiftshader.googlesource.com/SwiftShader/+log/8def9063c4fd..bdfcfe9cfd2a

$ git log 8def9063c..bdfcfe9cf --date=short --no-merges --format='%ad %ae %s'
2020-02-24 bclayton Squashed 'third_party/SPIRV-Tools/' changes from 8aa423930..8910ea5f1
2020-02-22 thakis Fix Wrange-loop-analysis warnings in swiftshader.
2020-02-21 amaiorano Replace target_cpu with current_cpu in Build.gn files
2020-02-21 sugoi Revert "Subzero: add support for large stacks on Windows"
2020-02-19 amaiorano Subzero: add support for large stacks on Windows
2020-02-20 sugoi VK_EXT_shader_stencil_export support
2020-02-19 bclayton Remove rr::Thread
2020-02-20 capn Support JIT on a separate thread
2020-02-20 sugoi Revert "VK_EXT_shader_stencil_export support"
2020-02-13 sugoi VK_EXT_shader_stencil_export support
2020-02-14 sugoi Array length fix

Created with:
  roll-dep third_party/swiftshader

Bug:
TBR=rharrison@chromium.org
Change-Id: I7c09531a8f8d58504911b038755a6e0074ac4464

Change-Id: I47e7865cce3c1bf91f48b87aae012d6b89455bd1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16140
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
diff --git a/DEPS b/DEPS
index 8cf178f..f0605e4 100644
--- a/DEPS
+++ b/DEPS
@@ -104,7 +104,7 @@
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@8def9063c4fdefa8e644198d2254ef279952c88b',
+    'url': '{swiftshader_git}/SwiftShader@bdfcfe9cfd2acb22219dd5a79fd7f83c8f320a11',
     'condition': 'dawn_standalone',
   },