// A shuffle can only come from building a vector from various
// elements of other vectors.
return SDValue();
+ } else if (V.getOperand(0).getValueType().getVectorElementType() !=
+ VT.getVectorElementType()) {
+ // This code doesn't know how to handle shuffles where the vector
+ // element types do not match (this happens because type legalization
+ // promotes the return type of EXTRACT_VECTOR_ELT).
+ // FIXME: It might be appropriate to extend this code to handle
+ // mismatched types.
+ return SDValue();
}
// Record this extraction against the appropriate vector if possible...
%tmp3 = shufflevector <8 x i16> %tmp1, <8 x i16> %tmp2, <8 x i32> <i32 0, i32 7, i32 5, i32 13, i32 3, i32 2, i32 2, i32 9>
ret <8 x i16> %tmp3
}
+
+; PR11129
+; Make sure this doesn't crash
+define arm_aapcscc void @test_elem_mismatch(<2 x i64>* nocapture %src, <4 x i16>* nocapture %dest) nounwind {
+; CHECK: test_elem_mismatch:
+; CHECK: vstr.64
+ %tmp0 = load <2 x i64>* %src, align 16
+ %tmp1 = bitcast <2 x i64> %tmp0 to <4 x i32>
+ %tmp2 = extractelement <4 x i32> %tmp1, i32 0
+ %tmp3 = extractelement <4 x i32> %tmp1, i32 2
+ %tmp4 = trunc i32 %tmp2 to i16
+ %tmp5 = trunc i32 %tmp3 to i16
+ %tmp6 = insertelement <4 x i16> undef, i16 %tmp4, i32 0
+ %tmp7 = insertelement <4 x i16> %tmp6, i16 %tmp5, i32 1
+ store <4 x i16> %tmp7, <4 x i16>* %dest, align 4
+ ret void
+}