[llvm-bugs] [Bug 50516] New: Unreliable 2nd stage test: CodeGen/X86/AMX/amx-fast-tile-config.mir

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https://bugs.llvm.org/show_bug.cgi?id=50516

            Bug ID: 50516
           Summary: Unreliable 2nd stage test:
                    CodeGen/X86/AMX/amx-fast-tile-config.mir
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: dave at znu.io
                CC: craig.topper at gmail.com, llvm-bugs at lists.llvm.org,
                    llvm-dev at redking.me.uk, pengfei.wang at intel.com,
                    spatel+llvm at rotateright.com

Some time in the last week or two (?), it seems like
CodeGen/X86/AMX/amx-fast-tile-config.mir started failing -- but unreliably so
-- during the second stage of my multi-stage bot. The first stage is being
compiled with clang-12 with optimizations and no asserts. The second stage that
is failing unreliably is built with optimizations and asserts.

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