[llvm-bugs] [Bug 34067] New: r304953 introduced a failure due to clang passing a structure by value and using fastcc

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=34067

            Bug ID: 34067
           Summary: r304953 introduced a failure due to clang passing a
                    structure by value and using fastcc
           Product: new-bugs
           Version: 5.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: petar.jovanovic at imgtec.com
                CC: llvm-bugs at lists.llvm.org

Landing r304953 introduced a failure when compiling clang with -O3 as one of
the structures used by clang is passed
by value and uses the fastcc calling convention.

The change has been reverted on ToT as:

------------------------------------------------------------------------
r310057 | smaksimovic | 2017-08-04 14:37:34 +0200 (Fri, 04 Aug 2017) | 8 lines

Revert r304953 for release 5.0.0

This is causing failures when compiling clang with -O3
as one of the structures used by clang is passed by
value and uses the fastcc calling convention.

Faliures manifest for stage2 mips build.


This needs to be cherry-picked for 5.0.0 release.

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