diff --git a/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td b/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
--- a/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
+++ b/llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
@@ -165,8 +165,8 @@
 def AArch64lastb     : SDNode<"AArch64ISD::LASTB",        SDT_AArch64Reduce>;
 
 def SDT_AArch64Arith : SDTypeProfile<1, 3, [
-  SDTCisVec<0>, SDTCisVec<1>, SDTCisVec<2>, SDTCisVec<3>,
-  SDTCVecEltisVT<1,i1>, SDTCisSameAs<0,2>, SDTCisSameAs<2,3>
+  SDTCisVec<0>, SDTCVecEltisVT<1,i1>, SDTCisSameAs<0,2>,
+  SDTCisSameAs<2,3>, SDTCisSameNumEltsAs<0,1>
 ]>;
 
 def SDT_AArch64FMA : SDTypeProfile<1, 4, [
@@ -240,6 +240,10 @@
 def AArch64cnot_mt : PatFrags<(ops node:$pg, node:$op, node:$pt), [(int_aarch64_sve_cnot node:$pt, node:$pg, node:$op)]>;
 def AArch64not_mt  : PatFrags<(ops node:$pg, node:$op, node:$pt), [(int_aarch64_sve_not  node:$pt, node:$pg, node:$op)]>;
 
+def AArch64fmul_m1 : EitherVSelectOrPassthruPatFrags<int_aarch64_sve_fmul, AArch64fmul_p>;
+def AArch64fadd_m1 : EitherVSelectOrPassthruPatFrags<int_aarch64_sve_fadd, AArch64fadd_p>;
+def AArch64fsub_m1 : EitherVSelectOrPassthruPatFrags<int_aarch64_sve_fsub, AArch64fsub_p>;
+
 def SDT_AArch64FCVT : SDTypeProfile<1, 3, [
   SDTCisVec<0>, SDTCisVec<1>, SDTCisVec<2>, SDTCisVec<3>,
   SDTCVecEltisVT<1,i1>
@@ -451,9 +455,9 @@
     defm FMIN_ZPZI    : sve_fp_2op_i_p_zds_zeroing_hfd<sve_fpimm_zero_one, fpimm0, fpimm_one, int_aarch64_sve_fmin>;
   }
 
-  defm FADD_ZPmZ   : sve_fp_2op_p_zds<0b0000, "fadd", "FADD_ZPZZ", int_aarch64_sve_fadd, DestructiveBinaryComm>;
-  defm FSUB_ZPmZ   : sve_fp_2op_p_zds<0b0001, "fsub", "FSUB_ZPZZ", int_aarch64_sve_fsub, DestructiveBinaryCommWithRev, "FSUBR_ZPmZ">;
-  defm FMUL_ZPmZ   : sve_fp_2op_p_zds<0b0010, "fmul", "FMUL_ZPZZ", int_aarch64_sve_fmul, DestructiveBinaryComm>;
+  defm FADD_ZPmZ   : sve_fp_2op_p_zds<0b0000, "fadd", "FADD_ZPZZ", AArch64fadd_m1, DestructiveBinaryComm>;
+  defm FSUB_ZPmZ   : sve_fp_2op_p_zds<0b0001, "fsub", "FSUB_ZPZZ", AArch64fsub_m1, DestructiveBinaryCommWithRev, "FSUBR_ZPmZ">;
+  defm FMUL_ZPmZ   : sve_fp_2op_p_zds<0b0010, "fmul", "FMUL_ZPZZ", AArch64fmul_m1, DestructiveBinaryComm>;
   defm FSUBR_ZPmZ  : sve_fp_2op_p_zds<0b0011, "fsubr", "FSUBR_ZPZZ", int_aarch64_sve_fsubr, DestructiveBinaryCommWithRev, "FSUB_ZPmZ", /*isReverseInstr*/ 1>;
   defm FMAXNM_ZPmZ : sve_fp_2op_p_zds<0b0100, "fmaxnm", "FMAXNM_ZPZZ", int_aarch64_sve_fmaxnm, DestructiveBinaryComm>;
   defm FMINNM_ZPmZ : sve_fp_2op_p_zds<0b0101, "fminnm", "FMINNM_ZPZZ", int_aarch64_sve_fminnm, DestructiveBinaryComm>;
diff --git a/llvm/lib/Target/AArch64/SVEInstrFormats.td b/llvm/lib/Target/AArch64/SVEInstrFormats.td
--- a/llvm/lib/Target/AArch64/SVEInstrFormats.td
+++ b/llvm/lib/Target/AArch64/SVEInstrFormats.td
@@ -513,6 +513,17 @@
                       (vt (AArch64dup (it immL))))),
       (inst $Pg, $Zs1, imm)>;
 
+//===----------------------------------------------------------------------===//
+// SVE pattern match helpers.
+//===----------------------------------------------------------------------===//
+
+// Matches either an intrinsic, or a predicated operation with an all active predicate
+class EitherVSelectOrPassthruPatFrags<SDPatternOperator intrinsic, SDPatternOperator sdnode>
+: PatFrags<(ops node:$Pg, node:$Op1, node:$Op2), [
+    (intrinsic node:$Pg, node:$Op1, node:$Op2),
+    (vselect node:$Pg, (sdnode (SVEAllActive), node:$Op1, node:$Op2), node:$Op1),
+  ]>;
+
 //
 // Pseudo -> Instruction mappings
 //
diff --git a/llvm/test/CodeGen/AArch64/sve-fp-vselect.ll b/llvm/test/CodeGen/AArch64/sve-fp-vselect.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/sve-fp-vselect.ll
@@ -0,0 +1,92 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve < %s | FileCheck %s
+
+define <vscale x 8 x half> @vselect_fmul_f16(<vscale x 8 x i1> %p, <vscale x 8 x half> %a, <vscale x 8 x half> %b) {
+; CHECK-LABEL: vselect_fmul_f16:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fmul z0.h, p0/m, z0.h, z1.h
+; CHECK-NEXT:    ret
+    %mul = fmul <vscale x 8 x half> %a, %b
+    %sel = select <vscale x 8 x i1> %p, <vscale x 8 x half> %mul, <vscale x 8 x half> %a
+    ret <vscale x 8 x half> %sel
+}
+
+define <vscale x 4 x float> @vselect_fmul_f32(<vscale x 4 x i1> %p, <vscale x 4 x float> %a, <vscale x 4 x float> %b) {
+; CHECK-LABEL: vselect_fmul_f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fmul z0.s, p0/m, z0.s, z1.s
+; CHECK-NEXT:    ret
+    %mul = fmul <vscale x 4 x float> %a, %b
+    %sel = select <vscale x 4 x i1> %p, <vscale x 4 x float> %mul, <vscale x 4 x float> %a
+    ret <vscale x 4 x float> %sel
+}
+
+define <vscale x 2 x double> @vselect_fmul_f64(<vscale x 2 x i1> %p, <vscale x 2 x double> %a, <vscale x 2 x double> %b) {
+; CHECK-LABEL: vselect_fmul_f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fmul z0.d, p0/m, z0.d, z1.d
+; CHECK-NEXT:    ret
+    %mul = fmul <vscale x 2 x double> %a, %b
+    %sel = select <vscale x 2 x i1> %p, <vscale x 2 x double> %mul, <vscale x 2 x double> %a
+    ret <vscale x 2 x double> %sel
+}
+
+define <vscale x 8 x half> @vselect_fadd_f16(<vscale x 8 x i1> %p, <vscale x 8 x half> %a, <vscale x 8 x half> %b) {
+; CHECK-LABEL: vselect_fadd_f16:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fadd z0.h, p0/m, z0.h, z1.h
+; CHECK-NEXT:    ret
+    %add = fadd <vscale x 8 x half> %a, %b
+    %sel = select <vscale x 8 x i1> %p, <vscale x 8 x half> %add, <vscale x 8 x half> %a
+    ret <vscale x 8 x half> %sel
+}
+
+define <vscale x 4 x float> @vselect_fadd_f32(<vscale x 4 x i1> %p, <vscale x 4 x float> %a, <vscale x 4 x float> %b) {
+; CHECK-LABEL: vselect_fadd_f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fadd z0.s, p0/m, z0.s, z1.s
+; CHECK-NEXT:    ret
+    %add = fadd <vscale x 4 x float> %a, %b
+    %sel = select <vscale x 4 x i1> %p, <vscale x 4 x float> %add, <vscale x 4 x float> %a
+    ret <vscale x 4 x float> %sel
+}
+
+define <vscale x 2 x double> @vselect_fadd_f64(<vscale x 2 x i1> %p, <vscale x 2 x double> %a, <vscale x 2 x double> %b) {
+; CHECK-LABEL: vselect_fadd_f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fadd z0.d, p0/m, z0.d, z1.d
+; CHECK-NEXT:    ret
+    %add = fadd <vscale x 2 x double> %a, %b
+    %sel = select <vscale x 2 x i1> %p, <vscale x 2 x double> %add, <vscale x 2 x double> %a
+    ret <vscale x 2 x double> %sel
+}
+
+define <vscale x 8 x half> @vselect_fsub_f16(<vscale x 8 x i1> %p, <vscale x 8 x half> %a, <vscale x 8 x half> %b) {
+; CHECK-LABEL: vselect_fsub_f16:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fsub z0.h, p0/m, z0.h, z1.h
+; CHECK-NEXT:    ret
+    %sub = fsub <vscale x 8 x half> %a, %b
+    %sel = select <vscale x 8 x i1> %p, <vscale x 8 x half> %sub, <vscale x 8 x half> %a
+    ret <vscale x 8 x half> %sel
+}
+
+define <vscale x 4 x float> @vselect_fsub_f32(<vscale x 4 x i1> %p, <vscale x 4 x float> %a, <vscale x 4 x float> %b) {
+; CHECK-LABEL: vselect_fsub_f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fsub z0.s, p0/m, z0.s, z1.s
+; CHECK-NEXT:    ret
+    %sub = fsub <vscale x 4 x float> %a, %b
+    %sel = select <vscale x 4 x i1> %p, <vscale x 4 x float> %sub, <vscale x 4 x float> %a
+    ret <vscale x 4 x float> %sel
+}
+
+define <vscale x 2 x double> @vselect_fsub_f64(<vscale x 2 x i1> %p, <vscale x 2 x double> %a, <vscale x 2 x double> %b) {
+; CHECK-LABEL: vselect_fsub_f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fsub z0.d, p0/m, z0.d, z1.d
+; CHECK-NEXT:    ret
+    %sub = fsub <vscale x 2 x double> %a, %b
+    %sel = select <vscale x 2 x i1> %p, <vscale x 2 x double> %sub, <vscale x 2 x double> %a
+    ret <vscale x 2 x double> %sel
+}