[LLVMbugs] [Bug 2390] New: LLVM doesn' t match the x86 linux calling convention for see vectors

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2390

           Summary: LLVM doesn't match the x86 linux calling convention for
                    see vectors
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: sharparrow1 at yahoo.com
                CC: llvmbugs at cs.uiuc.edu


Testcase:

#include <xmmintrin.h>
__m128i r(__m128 d1, __m128 d2, __m128 d3, __m128i r, int t, __m128i s) {return
r+s;}

llvm-gcc code:
r:
        pushl   %ebp
        movl    %esp, %ebp
        andl    $-16, %esp
        movaps  %xmm3, %xmm0
        paddq   24(%ebp), %xmm0
        movl    %ebp, %esp
        popl    %ebp
        ret

gcc code:
r:
        subl    $12, %esp
        movdqa  48(%esp), %xmm0
        paddq   16(%esp), %xmm0
        addl    $12, %esp
        ret

Obviously not going to work for calls between them.


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