Roll src/third_party/swiftshader 74561df3e679..83dd452c1fe6 (5 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/74561df3e679..83dd452c1fe6


git log 74561df3e679..83dd452c1fe6 --date=short --no-merges --format='%ad %ae %s'
2019-06-28 bclayton@google.com Reactor: Assert that array indexing is in bounds
2019-06-28 bclayton@google.com CMakeLists: Use ccache if found
2019-06-28 srisser@google.com Cleanup unittests a bit
2019-06-28 bclayton@google.com Pipeline/ShaderCore: Reimplement halfToFloatBits to not rely on denorm float multiply
2019-06-28 chrisforbes@google.com Wire up remaining 32b __sync_* functions required for arm32


Created with:
  gclient setdep -r src/third_party/swiftshader@83dd452c1fe6

The AutoRoll server is located here: https://autoroll.skia.org/r/swiftshader-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

CQ_INCLUDE_TRYBOTS=luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel

BUG=chromium:b/136095012,chromium:b/135691587
TBR=swiftshader-team+autoroll@google.com

Change-Id: Ie3730b7aa2d0b822716c4cf4309567d6fb4311f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1682092Reviewed-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@{#673438}

DEPS

@@ -158,7 +158,7 @@ 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': '74561df3e679cc788330c0b74309ddc0cb0b079e',
+  'swiftshader_revision': '83dd452c1fe676f2e91da6d859a918199b92740f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.