Roll SwiftShader from ecba967ea71f to f0db6df92f88 (5 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/ecba967ea71f..f0db6df92f88

2022-08-31 capn@google.com Eliminate incorrect Exponent() function
2022-08-31 capn@google.com Optimize Frexp() zero handling
2022-08-31 capn@google.com Fix Frexp() for subnormal arguments under DAZ
2022-08-31 capn@google.com Move Frexp and Ldexp to ShaderCore
2022-08-31 sugoi@google.com OpCopy* fixes

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 bajones@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: bajones@google.com
Change-Id: I55331b046ad75d46b2e5263c5a2155786be4ac14
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/100920
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: 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@ecba967ea71ff219de64131f774d7fdd37473ada',
+    'url': '{swiftshader_git}/SwiftShader@f0db6df92f88cb4b7f30fd6dc0b2643449cadbb4',
     'condition': 'dawn_standalone',
   },