Roll SwiftShader from fbcd60957174 to c70b46423fc4 (1 revision)

https://swiftshader.googlesource.com/SwiftShader.git/+log/fbcd60957174..c70b46423fc4

2022-12-14 sugoi@google.com Fix use-of-uninitialized-value issue for indexType

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 bclayton@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: bclayton@google.com
Change-Id: I1acbb6c327c959aae218dfd1901c682f7d0ee317
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/114440
Kokoro: Kokoro <noreply+kokoro@google.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -137,7 +137,7 @@ deps = {
   },
 
   'third_party/swiftshader': {
-    'url': '{swiftshader_git}/SwiftShader@fbcd6095717437609d567fc7eaad5d8575677b19',
+    'url': '{swiftshader_git}/SwiftShader@c70b46423fc435f9b2d0c7c8e7302331320e54ab',
     'condition': 'dawn_standalone',
   },