[LLVMbugs] [Bug 3899] New: extractelement crashes with -soft-float

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3899

           Summary: extractelement crashes with -soft-float
           Product: libraries
           Version: trunk
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: compile-fail
          Severity: normal
          Priority: P2
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: stoklund at 2pi.dk
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=2770)
 --> (http://llvm.org/bugs/attachment.cgi?id=2770)
Test case for Codegen/Generic

The extractelement instruction on a float vector causes crashes when running
with -soft-float or with a backend that has no hardware float support.

The instruction is lowered to ISD::EXTRACT_VECTOR_ELT, and
DAGTypeLegalizer::SoftenFloatResult cannot handle that operator. This triggers
an assertion: "Do not know how to soften the result of this operator!"


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