[LLVMbugs] [Bug 14627] New: Simple inline PPC asm hits assert: `(PartVT.isInteger() || PartVT == MVT::x86mmx) && ValueVT.isInteger() && "Unknown mismatch!"'

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14627

             Bug #: 14627
           Summary: Simple inline PPC asm hits assert:
                    `(PartVT.isInteger() || PartVT == MVT::x86mmx) &&
                    ValueVT.isInteger() && "Unknown mismatch!"'
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: hfinkel at anl.gov
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 9714
  --> http://llvm.org/bugs/attachment.cgi?id=9714
bugpoint reduced test case

When compiling the following inline assembly on PPC64:
%0 = tail call double* asm sideeffect "qvstfdux $2,$0,$1",
"=b,{r7},{f11},0,~{memory}"(i32 64, double undef, double* undef) nounwind

The Selection-DAG builder asserts:
SelectionDAGBuilder.cpp:383: void getCopyToParts(llvm::SelectionDAG&,
llvm::DebugLoc, llvm::SDValue, llvm::SDValue*, unsigned int, llvm::EVT, const
llvm::Value*, llvm::ISD::NodeType): Assertion `(PartVT.isInteger() || PartVT ==
MVT::x86mmx) && ValueVT.isInteger() && "Unknown mismatch!"' failed.

Full test case attached.

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