[LLVMbugs] [Bug 7437] New: Address space not being correctly preserved

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=7437

           Summary: Address space not being correctly preserved
           Product: new-bugs
           Version: 2.7
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: mike.gist at imgtec.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=5074)
 --> (http://llvm.org/bugs/attachment.cgi?id=5074)
Example code

When loading and storing data from/to an element of an array, which is a member
of a struct, who's address is held in an address space qualified pointer, the
address space is sometimes lost.

It appears this happens if the struct is first copied to the stack in the
original code. This is then optimised out by the compiler but the address space
isn't correctly applied to the pointer during this optimisation.

See attached code for an example.

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