Roll third_party/externals/swiftshader 900e1dac1b2d..e899321b0bf7 (7 commits)
Roll third_party/externals/swiftshader 900e1dac1b2d..e899321b0bf7 (7 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/900e1dac1b2d..e899321b0bf7


git log 900e1dac1b2d..e899321b0bf7 --date=short --no-merges --format='%ad %ae %s'
2019-06-24 capn@google.com Refactor remaining cases of memset(this, ...)
2019-06-24 capn@google.com Fix initialization of LRU cache keys
2019-06-24 headlessclayton@gmail.com LLVMReactor: Bind double variants of trig / exp functions
2019-06-24 headlessclayton@gmail.com LLVMReactor: Remove "stack-probe-size" fudge, bind _chkstk extern
2019-06-24 headlessclayton@gmail.com Reactor: Various build fixes for MSVC 2019
2019-06-24 headlessclayton@gmail.com LLVMReactor: Align the coroutine stack frame.
2019-06-24 bclayton@google.com Put LLVM IR verification behind a default-disabled flag


Created with:
  gclient setdep -r third_party/externals/swiftshader@e899321b0bf7

The AutoRoll server is located here: https://autoroll.skia.org/r/swiftshader-skia-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=skia.primary:Test-Debian9-Clang-GCE-GPU-SwiftShader-x86_64-Debug-All-SwiftShader
TBR=djsollen@google.com

Change-Id: I4eb9c0a0bcf90dbb704a0193f6aa85352a58bf81
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/223556
Reviewed-by: skia-autoroll <e034c62197df5622a9c1bef8b3e012f87a0a9840@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <e034c62197df5622a9c1bef8b3e012f87a0a9840@skia-public.iam.gserviceaccount.com>

aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,HalCanary/skia-hc,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,google/skia,google/skia,google/skia,google/skia,HalCanary/skia-hc,HalCanary/skia-hc,google/skia,HalCanary/skia-hc,google/skia,HalCanary/skia-hc,HalCanary/skia-hc,aosp-mirror/platform_external_skia