Roll SwiftShader from 52c1a859d9eb to 04bd4d8e4ece (2 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/52c1a859d9eb..04bd4d8e4ece

2020-10-15 amaiorano@google.com Add unit tests for arithmetic ops with constant args
2020-10-15 eholk@chromium.org Handle mul instructions with two immediates on x86-32 and x86-64

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-chromium-autoroll
Please CC swiftshader-team+autoroll@google.com on the revert to ensure that a human
is aware of the problem.

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/master/autoroll/README.md

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_chromium_msan_rel_ng;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:linux-swangle-try-x64;luci.chromium.try:win-swangle-try-x86
Bug: None
Tbr: swiftshader-team+autoroll@google.com
Change-Id: I09a0185aa4df92d780baf4b9cf664323273bcf8b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2475006Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#817527}

DEPS

@@ -216,7 +216,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.
-  'swiftshader_revision': '52c1a859d9ebd3adb49e70d1c7a5ac287388445e',
+  'swiftshader_revision': '04bd4d8e4ece08cc4efbb4754665f46ec42eff79',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.