[LLVMbugs] [Bug 3555] altivec.vaddsbs intrinsic doesn't work at all

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3555


Chris Lattner <clattner at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




--- Comment #1 from Chris Lattner <clattner at apple.com>  2009-02-11 20:03:01 ---
i agree that the error message is pretty gross, but this does work fine:

$ cat t.ll
declare <16 x i8> @llvm.ppc.altivec.vaddsbs(<16 x i8> %a, <16 x i8>)

define <16 x i8>  @foo(<16 x i8> %x) nounwind {
  %foo = call <16 x i8> @llvm.ppc.altivec.vaddsbs(<16 x i8> %x, <16 x i8> %x)
  ret <16 x i8>  %foo
}

$ llvm-as < t.ll | llc  -o - -march=ppc32 -mcpu=g5
...
_foo:
        vaddsbs v2, v2, v2
        blr 


Make sure to pick a CPU with altivec support.


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