[llvm-bugs] [Bug 26107] New: Shrink wrapping breaks llgo on X86-64

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Sun Jan 10 18:06:25 PST 2016


            Bug ID: 26107
           Summary: Shrink wrapping breaks llgo on X86-64
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: axwalk at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

r255175 enabled shrink-wrapping for the X86 backend, at which point
llgo-generated code started failing. It appears that shrink wrapping interacts
badly with the segmented stacks implementation in LLVM, but I do not know
enough about either to make a definite statement.

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