[LLVMbugs] [Bug 14453] New: Complex data-members passed as variable arg gets broken when compiled with -fpic

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14453

             Bug #: 14453
           Summary: Complex data-members passed as variable arg gets
                    broken when compiled with -fpic
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: naveen.c at samsung.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 9604
  --> http://llvm.org/bugs/attachment.cgi?id=9604
Reduced code which reproduces the problem

When compiling the attached file with -fpic causes this problem. 
It happens only for 32-bit compilation, 64-bit executables are fine.

Furthermore if we raise the optimation level to O1 or O2 it removes the
redundant assembly and works just fine.

Steps:

clang -m32 -fpic Complex-fpic.c
./a.out

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