Roll SwiftShader from ee0d0b41a626 to 19e3080dfe86 (8 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/ee0d0b41a626..19e3080dfe86

2022-06-02 srisser@google.com Move SIMD::Pointer to rr::Pointer4
2022-06-02 sugoi@google.com Remove unused allocateZero function
2022-06-02 sugoi@google.com Merge changes I988caf15,I62185327
2022-06-02 sugoi@google.com Fix early fragment tests
2022-06-02 sugoi@google.com Compute occlusion sample count early when using earlyFragmentTests
2022-06-02 sugoi@google.com Write stencil early when using earlyFragmentTests
2022-06-02 sugoi@google.com PixelRoutine::stencilOperation() refactor
2022-06-02 sugoi@google.com Return value refactor for stencilOperation()

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 lokokung@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: lokokung@google.com
Change-Id: Ia185a141d1088e1b571035b94f888b81ef59f71f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92402
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

@@ -134,7 +134,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@ee0d0b41a62640e0c37d1611f84e7533072c7256',
+    'url': '{swiftshader_git}/SwiftShader@19e3080dfe86936d88bd68c38281fc4095128758',
     'condition': 'dawn_standalone',
   },