Roll SwiftShader from 6d612051c083 to 43bb60e1fa11 (6 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/6d612051c083..43bb60e1fa11

2020-11-23 amaiorano@google.com Run ReactorUnitTests.LargeStack on non-Windows targets
2020-11-23 amaiorano@google.com Workaround for ReactorUnitTests.LargeStack taking too long on LLVM
2020-11-23 amaiorano@google.com CMake: set REACTOR_DEFAULT_OPT_LEVEL to "" by default
2020-11-23 amaiorano@google.com Add "fmod" external symbol to LLVM backend
2020-11-23 capn@google.com Limit the recursion depth of llvm::SelectionDAG::isSplatValue()
2020-11-23 srisser@google.com Add OpCopyLogical

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-skia-autoroll
Please CC adlai@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: skia/skia.primary:Test-Debian10-Clang-GCE-GPU-SwiftShader-x86_64-Debug-All-SwiftShader
Bug: None
Tbr: adlai@google.com
Change-Id: Icb720972296534006d9717b5a62e5dcdaa6690b7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/337949
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>

Author: skia-autoroll

DEPS

@@ -40,7 +40,7 @@ deps = {
   "third_party/externals/spirv-cross"     : "https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Cross@bdbef7b1f3982fe99a62d076043036abe6dd6d80",
   "third_party/externals/spirv-headers"   : "https://skia.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers.git@c0df742ec0b8178ad58c68cff3437ad4b6a06e26",
   "third_party/externals/spirv-tools"     : "https://skia.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git@e95fbfb1f509ad7a7fdfb72ac35fe412d72fc4a4",
-  "third_party/externals/swiftshader"     : "https://swiftshader.googlesource.com/SwiftShader@6d612051c083238db89541be4fbb2d624a9baef4",
+  "third_party/externals/swiftshader"     : "https://swiftshader.googlesource.com/SwiftShader@43bb60e1fa119d80b449c6550dd2b72328b101b9",
   #"third_party/externals/v8"              : "https://chromium.googlesource.com/v8/v8.git@5f1ae66d5634e43563b2d25ea652dfb94c31a3b4",
   "third_party/externals/wuffs"           : "https://skia.googlesource.com/external/github.com/google/wuffs.git@00cc8a50aa0c86b6bcb37e9ece8fb100047cc17b",
   "third_party/externals/zlib"            : "https://chromium.googlesource.com/chromium/src/third_party/zlib@eaf99a4e2009b0e5759e6070ad1760ac1dd75461",