[LLVMbugs] [Bug 23220] New: r234581 broke a test in Chromium

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23220

            Bug ID: 23220
           Summary: r234581 broke a test in Chromium
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: nicolasweber at gmx.de
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

With r234581, `out\Release\sbox_integration_tests.exe
--gtest_filter=ProcessMitigationsTest.CheckDep` fails.

I tried building all .obj files with both r234581 applied and reverted, and the
only .obj file that makes a difference is the one for
sandbox/win/src/broker_services.cc. (
https://code.google.com/p/chromium/codesearch#chromium/src/sandbox/win/src/broker_services.cc&q=broker_services.cc&sq=package:chromium&type=cs
)

I'm attaching the assembly output from each clang to this bug. Labels are
different everywhere, but code is really only different for 4 functions:

* BrokerServicesBase::SpawnTarget
* BrokerServicesBase::AddTargetPeer (looks harmless?)
* BrokerServicesBase::InstallAppContainer
* BrokerServicesBase::UninstallAppContainer

The first function has the most differences.

I'll debug some more later.

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