Roll SwiftShader from ea5f37f39193 to 71f3089b729c (5 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/ea5f37f39193..71f3089b729c

2022-04-20 capn@google.com Revert "Temporarily ignore unsupported feature struct"
2022-04-20 swiftshader.regress@gmail.com Regres: Update test lists @ 88fe9ce0
2022-04-20 capn@google.com Automate downloading .git/hooks/commit-msg
2022-04-20 capn@google.com Run all LLVM passes in LLVMJIT.cpp
2022-04-20 swiftshader.regress@gmail.com Regres: Update test lists @ ea5f37f3

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-dawn-autoroll
Please CC shrekshao@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 Dawn: https://bugs.chromium.org/p/dawn/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

Bug: None
Tbr: shrekshao@google.com
Change-Id: I38baad166c75e19f0534dc519bea947505111012
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87401
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Kokoro: Kokoro <noreply+kokoro@google.com>

DEPS

@@ -132,7 +132,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@ea5f37f391931f7f39402ae1b8d6d5984380794d',
+    'url': '{swiftshader_git}/SwiftShader@71f3089b729c0bd3383905ae43080af1e7946e40',
     'condition': 'dawn_standalone',
   },