ret <8 x float> %r
}
+; Negative test - splat of non-zero indexes (still sink the splat).
+
+define <2 x double> @fadd_splat_splat_nonzero_v2f64(<2 x double> %vx, <2 x double> %vy) {
+; SSE-LABEL: fadd_splat_splat_nonzero_v2f64:
+; SSE: # %bb.0:
+; SSE-NEXT: addpd %xmm1, %xmm0
+; SSE-NEXT: unpckhpd {{.*#+}} xmm0 = xmm0[1,1]
+; SSE-NEXT: retq
+;
+; AVX-LABEL: fadd_splat_splat_nonzero_v2f64:
+; AVX: # %bb.0:
+; AVX-NEXT: vaddpd %xmm1, %xmm0, %xmm0
+; AVX-NEXT: vpermilpd {{.*#+}} xmm0 = xmm0[1,1]
+; AVX-NEXT: retq
+ %splatx = shufflevector <2 x double> %vx, <2 x double> undef, <2 x i32> <i32 1, i32 1>
+ %splaty = shufflevector <2 x double> %vy, <2 x double> undef, <2 x i32> <i32 1, i32 1>
+ %r = fadd <2 x double> %splatx, %splaty
+ ret <2 x double> %r
+}
+
+; Negative test - splat of non-zero index and mismatched indexes.
+
+define <2 x double> @fadd_splat_splat_mismatch_v2f64(<2 x double> %vx, <2 x double> %vy) {
+; SSE-LABEL: fadd_splat_splat_mismatch_v2f64:
+; SSE: # %bb.0:
+; SSE-NEXT: unpcklpd {{.*#+}} xmm0 = xmm0[0,0]
+; SSE-NEXT: unpckhpd {{.*#+}} xmm1 = xmm1[1,1]
+; SSE-NEXT: addpd %xmm1, %xmm0
+; SSE-NEXT: retq
+;
+; AVX-LABEL: fadd_splat_splat_mismatch_v2f64:
+; AVX: # %bb.0:
+; AVX-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0]
+; AVX-NEXT: vpermilpd {{.*#+}} xmm1 = xmm1[1,1]
+; AVX-NEXT: vaddpd %xmm1, %xmm0, %xmm0
+; AVX-NEXT: retq
+ %splatx = shufflevector <2 x double> %vx, <2 x double> undef, <2 x i32> <i32 0, i32 0>
+ %splaty = shufflevector <2 x double> %vy, <2 x double> undef, <2 x i32> <i32 1, i32 1>
+ %r = fadd <2 x double> %splatx, %splaty
+ ret <2 x double> %r
+}
+
+; Negative test - non-splat.
+
+define <2 x double> @fadd_splat_nonsplat_v2f64(<2 x double> %vx, <2 x double> %vy) {
+; SSE-LABEL: fadd_splat_nonsplat_v2f64:
+; SSE: # %bb.0:
+; SSE-NEXT: unpcklpd {{.*#+}} xmm0 = xmm0[0,0]
+; SSE-NEXT: addpd %xmm1, %xmm0
+; SSE-NEXT: retq
+;
+; AVX-LABEL: fadd_splat_nonsplat_v2f64:
+; AVX: # %bb.0:
+; AVX-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0]
+; AVX-NEXT: vaddpd %xmm1, %xmm0, %xmm0
+; AVX-NEXT: retq
+ %splatx = shufflevector <2 x double> %vx, <2 x double> undef, <2 x i32> <i32 0, i32 0>
+ %splaty = shufflevector <2 x double> %vy, <2 x double> undef, <2 x i32> <i32 0, i32 1>
+ %r = fadd <2 x double> %splatx, %splaty
+ ret <2 x double> %r
+}
+
+; Negative test - non-FP.
+
+define <2 x i64> @add_splat_splat_v2i64(<2 x i64> %vx, <2 x i64> %vy) {
+; SSE-LABEL: add_splat_splat_v2i64:
+; SSE: # %bb.0:
+; SSE-NEXT: paddq %xmm1, %xmm0
+; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,1,0,1]
+; SSE-NEXT: retq
+;
+; AVX-LABEL: add_splat_splat_v2i64:
+; AVX: # %bb.0:
+; AVX-NEXT: vpaddq %xmm1, %xmm0, %xmm0
+; AVX-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,1,0,1]
+; AVX-NEXT: retq
+ %splatx = shufflevector <2 x i64> %vx, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
+ %splaty = shufflevector <2 x i64> %vy, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
+ %r = add <2 x i64> %splatx, %splaty
+ ret <2 x i64> %r
+}
+
define <2 x double> @fadd_splat_const_op1_v2f64(<2 x double> %vx) {
; SSE-LABEL: fadd_splat_const_op1_v2f64:
; SSE: # %bb.0: