diff --git a/llvm/test/CodeGen/X86/combine-fma-concat.ll b/llvm/test/CodeGen/X86/combine-fma-concat.ll
index 394d1ea19635..dcea93998e2f 100644
--- a/llvm/test/CodeGen/X86/combine-fma-concat.ll
+++ b/llvm/test/CodeGen/X86/combine-fma-concat.ll
@@ -200,6 +200,75 @@ define <16 x float> @concat_fmsub_v16f32_v8f32_constant_split(<8 x float> %a0, <
   ret <16 x float> %res
 }
 
+; 1 repeated concat + 1 constant - we only have to concat 2 operands down the fma chain
+define <8 x float> @concat_fma_v8f32_v4f32_constant_repeatedop(<4 x float> %a0, <4 x float> %a1, <4 x float> %a2, <4 x float> %a3) {
+; FMA4-LABEL: concat_fma_v8f32_v4f32_constant_repeatedop:
+; FMA4:       # %bb.0:
+; FMA4-NEXT:    vmovaps {{.*#+}} xmm4 = [1.0E+0,1.0E+0,1.0E+0,1.0E+0]
+; FMA4-NEXT:    vmovaps {{.*#+}} xmm5 = [2.0E+0,2.0E+0,2.0E+0,2.0E+0]
+; FMA4-NEXT:    vfmaddps {{.*#+}} xmm2 = (xmm0 * xmm2) + xmm4
+; FMA4-NEXT:    vfmaddps {{.*#+}} xmm3 = (xmm1 * xmm3) + xmm4
+; FMA4-NEXT:    vfmaddps {{.*#+}} xmm0 = (xmm0 * xmm2) + xmm5
+; FMA4-NEXT:    vfmaddps {{.*#+}} xmm1 = (xmm1 * xmm3) + xmm5
+; FMA4-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; FMA4-NEXT:    retq
+;
+; FMA3-LABEL: concat_fma_v8f32_v4f32_constant_repeatedop:
+; FMA3:       # %bb.0:
+; FMA3-NEXT:    # kill: def $xmm2 killed $xmm2 def $ymm2
+; FMA3-NEXT:    vbroadcastss {{.*#+}} xmm4 = [1.0E+0,1.0E+0,1.0E+0,1.0E+0]
+; FMA3-NEXT:    vfmadd213ps {{.*#+}} xmm2 = (xmm0 * xmm2) + xmm4
+; FMA3-NEXT:    vfmadd213ps {{.*#+}} xmm3 = (xmm1 * xmm3) + xmm4
+; FMA3-NEXT:    vbroadcastss {{.*#+}} xmm4 = [2.0E+0,2.0E+0,2.0E+0,2.0E+0]
+; FMA3-NEXT:    vfmadd213ps {{.*#+}} xmm2 = (xmm0 * xmm2) + xmm4
+; FMA3-NEXT:    vfmadd213ps {{.*#+}} xmm3 = (xmm1 * xmm3) + xmm4
+; FMA3-NEXT:    vinsertf128 $1, %xmm3, %ymm2, %ymm0
+; FMA3-NEXT:    retq
+  %l0 = call <4 x float> @llvm.fma.v4f32(<4 x float> %a0, <4 x float> %a2, <4 x float> splat (float 1.000000e+00))
+  %h0 = call <4 x float> @llvm.fma.v4f32(<4 x float> %a1, <4 x float> %a3, <4 x float> splat (float 1.000000e+00))
+  %l1 = call <4 x float> @llvm.fma.v4f32(<4 x float> %a0, <4 x float> %l0, <4 x float> splat (float 2.000000e+00))
+  %h1 = call <4 x float> @llvm.fma.v4f32(<4 x float> %a1, <4 x float> %h0, <4 x float> splat (float 2.000000e+00))
+  %r = shufflevector <4 x float> %l1, <4 x float> %h1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  ret <8 x float> %r
+}
+
+define <8 x double> @concat_fma_fmsub_v8f64_v4f64_constant_repeatedop_commute(<4 x double> %a0, <4 x double> %a1, <4 x double> %a2, <4 x double> %a3) {
+; FMA4-LABEL: concat_fma_fmsub_v8f64_v4f64_constant_repeatedop_commute:
+; FMA4:       # %bb.0:
+; FMA4-NEXT:    vmovapd {{.*#+}} ymm4 = [-2.0E+0,-2.0E+0,-2.0E+0,-2.0E+0]
+; FMA4-NEXT:    vfmaddpd {{.*#+}} ymm2 = (ymm2 * ymm0) + ymm4
+; FMA4-NEXT:    vfmaddpd {{.*#+}} ymm3 = (ymm3 * ymm1) + ymm4
+; FMA4-NEXT:    vfmsubpd {{.*#+}} ymm0 = (ymm0 * ymm2) - ymm4
+; FMA4-NEXT:    vfmsubpd {{.*#+}} ymm1 = (ymm1 * ymm3) - ymm4
+; FMA4-NEXT:    retq
+;
+; AVX2-LABEL: concat_fma_fmsub_v8f64_v4f64_constant_repeatedop_commute:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vbroadcastsd {{.*#+}} ymm4 = [-2.0E+0,-2.0E+0,-2.0E+0,-2.0E+0]
+; AVX2-NEXT:    vfmadd213pd {{.*#+}} ymm2 = (ymm0 * ymm2) + ymm4
+; AVX2-NEXT:    vfmadd213pd {{.*#+}} ymm3 = (ymm1 * ymm3) + ymm4
+; AVX2-NEXT:    vfmsub213pd {{.*#+}} ymm0 = (ymm2 * ymm0) - ymm4
+; AVX2-NEXT:    vfmsub213pd {{.*#+}} ymm1 = (ymm3 * ymm1) - ymm4
+; AVX2-NEXT:    retq
+;
+; AVX512-LABEL: concat_fma_fmsub_v8f64_v4f64_constant_repeatedop_commute:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vbroadcastsd {{.*#+}} ymm4 = [-2.0E+0,-2.0E+0,-2.0E+0,-2.0E+0]
+; AVX512-NEXT:    # kill: def $ymm2 killed $ymm2 def $zmm2
+; AVX512-NEXT:    vfmadd213pd {{.*#+}} ymm2 = (ymm0 * ymm2) + ymm4
+; AVX512-NEXT:    vfmadd213pd {{.*#+}} ymm3 = (ymm1 * ymm3) + ymm4
+; AVX512-NEXT:    vfmsub213pd {{.*#+}} ymm2 = (ymm0 * ymm2) - ymm4
+; AVX512-NEXT:    vfmsub213pd {{.*#+}} ymm3 = (ymm1 * ymm3) - ymm4
+; AVX512-NEXT:    vinsertf64x4 $1, %ymm3, %zmm2, %zmm0
+; AVX512-NEXT:    retq
+  %l0 = call <4 x double> @llvm.fma.v4f32(<4 x double> %a2, <4 x double> %a0, <4 x double> splat (double -2.000000e+00))
+  %h0 = call <4 x double> @llvm.fma.v4f32(<4 x double> %a3, <4 x double> %a1, <4 x double> splat (double -2.000000e+00))
+  %l1 = call <4 x double> @llvm.fma.v4f32(<4 x double> %a0, <4 x double> %l0, <4 x double> splat (double +2.000000e+00))
+  %h1 = call <4 x double> @llvm.fma.v4f32(<4 x double> %a1, <4 x double> %h0, <4 x double> splat (double +2.000000e+00))
+  %r = shufflevector <4 x double> %l1, <4 x double> %h1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  ret <8 x double> %r
+}
+
 ; negative - too many operands to concat
 define <8 x float> @concat_fmadd_v8f32_v4f32(<4 x float> %a0, <4 x float> %a1, <4 x float> %b0, <4 x float> %b1, <4 x float> %c0, <4 x float> %c1) {
 ; FMA4-LABEL: concat_fmadd_v8f32_v4f32: