; RUN: llc < %s -march=x86-64 ; PR4669 declare <1 x i64> @llvm.x86.mmx.pslli.q(<1 x i64>, i32) define <1 x i64> @test(i64 %t) { entry: %t1 = insertelement <1 x i64> undef, i64 %t, i32 0 %t2 = tail call <1 x i64> @llvm.x86.mmx.pslli.q(<1 x i64> %t1, i32 48) ret <1 x i64> %t2 }