[X86] Add v4i64 test coverage for llvm#58585

Turns out we fail to do this for concat_v4i64(broadcast_v2i64,broadcast_v2i64) as well

Author: RKSimon

llvm/test/CodeGen/X86/vector-shuffle-256-v4.ll

@@ -1540,6 +1540,33 @@ define <4 x i64> @shuffle_v4i64_1z3z(<4 x i64> %a, <4 x i64> %b) {
   ret <4 x i64> %shuffle
 }
 
+define <4 x i64> @shuffle_v4i64_0044_v2i64(<2 x i64> %a, <2 x i64> %b) {
+; AVX1-LABEL: shuffle_v4i64_0044_v2i64:
+; AVX1:       # %bb.0:
+; AVX1-NEXT:    # kill: def $xmm0 killed $xmm0 def $ymm0
+; AVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; AVX1-NEXT:    vmovddup {{.*#+}} ymm0 = ymm0[0,0,2,2]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v4i64_0044_v2i64:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vmovddup {{.*#+}} xmm0 = xmm0[0,0]
+; AVX2-NEXT:    vmovddup {{.*#+}} xmm1 = xmm1[0,0]
+; AVX2-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; AVX2-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v4i64_0044_v2i64:
+; AVX512VL:       # %bb.0:
+; AVX512VL-NEXT:    vmovddup {{.*#+}} xmm0 = xmm0[0,0]
+; AVX512VL-NEXT:    vmovddup {{.*#+}} xmm1 = xmm1[0,0]
+; AVX512VL-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; AVX512VL-NEXT:    retq
+  %1 = shufflevector <2 x i64> %a, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
+  %2 = shufflevector <2 x i64> %b, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
+  %3 = shufflevector <2 x i64> %1, <2 x i64> %2, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
+  ret <4 x i64> %3
+}
+
 define <4 x i64> @shuffle_v4i64_1032_v2i64(<2 x i64> %a, <2 x i64> %b) {
 ; ALL-LABEL: shuffle_v4i64_1032_v2i64:
 ; ALL:       # %bb.0: