[LLVMbugs] [Bug 17190] New: MSan reports wrong origin for "sret" arguments.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17190

            Bug ID: 17190
           Summary: MSan reports wrong origin for "sret" arguments.
           Product: compiler-rt
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: eugeni.stepanov at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

We need to reset origin for "sret" arguments in the function preamble.
Without this any bits that are left uninitialized by the callee are attributed
to the caller.

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