diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp
index c5a2c2f52f8dc..78ebd3207e859 100644
--- a/llvm/lib/Analysis/ConstantFolding.cpp
+++ b/llvm/lib/Analysis/ConstantFolding.cpp
@@ -1567,6 +1567,7 @@ bool llvm::canConstantFoldCallTo(const CallBase *Call, const Function *F) {
   case Intrinsic::sqrt:
   case Intrinsic::sin:
   case Intrinsic::cos:
+  case Intrinsic::sincos:
   case Intrinsic::pow:
   case Intrinsic::powi:
   case Intrinsic::ldexp:
@@ -3466,6 +3467,40 @@ ConstantFoldStructCall(StringRef Name, Intrinsic::ID IntrinsicID,
       return nullptr;
     return ConstantStruct::get(StTy, Result0, Result1);
   }
+  case Intrinsic::sincos: {
+    Type *Ty = StTy->getContainedType(0);
+    Type *TyScalar = Ty->getScalarType();
+
+    auto ConstantFoldScalarSincosCall =
+        [&](Constant *Op) -> std::pair<Constant *, Constant *> {
+      Constant *SinResult =
+          ConstantFoldScalarCall(Name, Intrinsic::sin, TyScalar, Op, TLI, Call);
+      Constant *CosResult =
+          ConstantFoldScalarCall(Name, Intrinsic::cos, TyScalar, Op, TLI, Call);
+      return std::make_pair(SinResult, CosResult);
+    };
+
+    if (auto *FVTy = dyn_cast<FixedVectorType>(Ty)) {
+      SmallVector<Constant *> SinResults(FVTy->getNumElements());
+      SmallVector<Constant *> CosResults(FVTy->getNumElements());
+
+      for (unsigned I = 0, E = FVTy->getNumElements(); I != E; ++I) {
+        Constant *Lane = Operands[0]->getAggregateElement(I);
+        std::tie(SinResults[I], CosResults[I]) =
+            ConstantFoldScalarSincosCall(Lane);
+        if (!SinResults[I] || !CosResults[I])
+          return nullptr;
+      }
+
+      return ConstantStruct::get(StTy, ConstantVector::get(SinResults),
+                                 ConstantVector::get(CosResults));
+    }
+
+    auto [SinResult, CosResult] = ConstantFoldScalarSincosCall(Operands[0]);
+    if (!SinResult || !CosResult)
+      return nullptr;
+    return ConstantStruct::get(StTy, SinResult, CosResult);
+  }
   default:
     // TODO: Constant folding of vector intrinsics that fall through here does
     // not work (e.g. overflow intrinsics)
diff --git a/llvm/test/Transforms/InstSimplify/sincos.ll b/llvm/test/Transforms/InstSimplify/sincos.ll
new file mode 100644
index 0000000000000..8f6d346e6c624
--- /dev/null
+++ b/llvm/test/Transforms/InstSimplify/sincos.ll
@@ -0,0 +1,148 @@
+; RUN: opt -S -passes=instsimplify %s | FileCheck %s
+
+define { float, float } @sincos_zero() {
+; CHECK-LABEL: define { float, float } @sincos_zero() {
+; CHECK-NEXT:    ret { float, float } { float 0.000000e+00, float 1.000000e+00 }
+;
+  %ret = call { float, float } @llvm.sincos.f32(float zeroinitializer)
+  ret { float, float } %ret
+}
+
+define { float, float } @sincos_neg_zero() {
+; CHECK-LABEL: define { float, float } @sincos_neg_zero() {
+; CHECK-NEXT:    ret { float, float } { float -0.000000e+00, float 1.000000e+00 }
+;
+  %ret = call { float, float } @llvm.sincos.f32(float -0.0)
+  ret { float, float } %ret
+}
+
+define { float, float } @sincos_one() {
+; CHECK-LABEL: define { float, float } @sincos_one() {
+; CHECK-NEXT:    ret { float, float } { float [[$SIN_ONE:.+]], float [[$COS_ONE:.+]] }
+;
+  %ret = call { float, float } @llvm.sincos.f32(float 1.0)
+  ret { float, float } %ret
+}
+
+define { float, float } @sincos_two() {
+; CHECK-LABEL: define { float, float } @sincos_two() {
+; CHECK-NEXT:    ret { float, float } { float [[$SIN_TWO:.+]], float [[$COS_TWO:.+]] }
+;
+  %ret = call { float, float } @llvm.sincos.f32(float 2.0)
+  ret { float, float } %ret
+}
+
+define { <2 x float>, <2 x float> } @sincos_vector() {
+; CHECK-LABEL: define { <2 x float>, <2 x float> } @sincos_vector() {
+; CHECK-NEXT:    ret { <2 x float>, <2 x float> } { <2 x float> <float [[$SIN_ONE]], float [[$SIN_TWO]]>, <2 x float> <float [[$COS_ONE]], float [[$COS_TWO]]> }
+;
+  %ret = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> <float 1.0, float 2.0>)
+  ret { <2 x float>, <2 x float> } %ret
+}
+
+define { <2 x float>, <2 x float> } @sincos_zero_vector() {
+; CHECK-LABEL: define { <2 x float>, <2 x float> } @sincos_zero_vector() {
+; CHECK-NEXT:    ret { <2 x float>, <2 x float> } { <2 x float> zeroinitializer, <2 x float> <float 1.000000e+00, float 1.000000e+00> }
+;
+  %ret = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> zeroinitializer)
+  ret { <2 x float>, <2 x float> } %ret
+}
+
+define { float, float } @sincos_poison() {
+; CHECK-LABEL: define { float, float } @sincos_poison() {
+; CHECK-NEXT:    [[RET:%.*]] = call { float, float } @llvm.sincos.f32(float poison)
+; CHECK-NEXT:    ret { float, float } [[RET]]
+;
+  %ret = call { float, float } @llvm.sincos.f32(float poison)
+  ret { float, float } %ret
+}
+
+define { <2 x float>, <2 x float> } @sincos_poison_vector() {
+; CHECK-LABEL: define { <2 x float>, <2 x float> } @sincos_poison_vector() {
+; CHECK-NEXT:    [[RET:%.*]] = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> poison)
+; CHECK-NEXT:    ret { <2 x float>, <2 x float> } [[RET]]
+;
+  %ret = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> poison)
+  ret { <2 x float>, <2 x float> } %ret
+}
+
+define { <vscale x 2 x float>, <vscale x 2 x float> } @sincos_poison_scalable_vector() {
+; CHECK-LABEL: define { <vscale x 2 x float>, <vscale x 2 x float> } @sincos_poison_scalable_vector() {
+; CHECK-NEXT:    [[RET:%.*]] = call { <vscale x 2 x float>, <vscale x 2 x float> } @llvm.sincos.nxv2f32(<vscale x 2 x float> poison)
+; CHECK-NEXT:    ret { <vscale x 2 x float>, <vscale x 2 x float> } [[RET]]
+;
+  %ret = call { <vscale x 2 x float>, <vscale x 2 x float> } @llvm.sincos.nxv2f32(<vscale x 2 x float> poison)
+  ret { <vscale x 2 x float>, <vscale x 2 x float> } %ret
+}
+
+define { float, float } @sincos_undef() {
+; CHECK-LABEL: define { float, float } @sincos_undef() {
+; CHECK-NEXT:    [[RET:%.*]] = call { float, float } @llvm.sincos.f32(float undef)
+; CHECK-NEXT:    ret { float, float } [[RET]]
+;
+  %ret = call { float, float } @llvm.sincos.f32(float undef)
+  ret { float, float } %ret
+}
+
+define { <2 x float>, <2 x float> } @sincos_undef_vector() {
+; CHECK-LABEL: define { <2 x float>, <2 x float> } @sincos_undef_vector() {
+; CHECK-NEXT:    [[RET:%.*]] = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> undef)
+; CHECK-NEXT:    ret { <2 x float>, <2 x float> } [[RET]]
+;
+  %ret = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> undef)
+  ret { <2 x float>, <2 x float> } %ret
+}
+
+define { <vscale x 2 x float>, <vscale x 2 x float> } @sincos_undef_scalable_vector() {
+; CHECK-LABEL: define { <vscale x 2 x float>, <vscale x 2 x float> } @sincos_undef_scalable_vector() {
+; CHECK-NEXT:    [[RET:%.*]] = call { <vscale x 2 x float>, <vscale x 2 x float> } @llvm.sincos.nxv2f32(<vscale x 2 x float> undef)
+; CHECK-NEXT:    ret { <vscale x 2 x float>, <vscale x 2 x float> } [[RET]]
+;
+  %ret = call { <vscale x 2 x float>, <vscale x 2 x float> } @llvm.sincos.nxv2f32(<vscale x 2 x float> undef)
+  ret { <vscale x 2 x float>, <vscale x 2 x float> } %ret
+}
+
+define { <vscale x 2 x float>, <vscale x 2 x float> } @sincos_zero_scalable_vector() {
+; CHECK-LABEL: define { <vscale x 2 x float>, <vscale x 2 x float> } @sincos_zero_scalable_vector() {
+; CHECK-NEXT:    [[RET:%.*]] = call { <vscale x 2 x float>, <vscale x 2 x float> } @llvm.sincos.nxv2f32(<vscale x 2 x float> zeroinitializer)
+; CHECK-NEXT:    ret { <vscale x 2 x float>, <vscale x 2 x float> } [[RET]]
+;
+  %ret = call { <vscale x 2 x float>, <vscale x 2 x float> } @llvm.sincos.nxv2f32(<vscale x 2 x float> zeroinitializer)
+  ret { <vscale x 2 x float>, <vscale x 2 x float> } %ret
+}
+
+define { float, float } @sincos_inf() {
+; CHECK-LABEL: define { float, float } @sincos_inf() {
+; CHECK-NEXT:    [[RET:%.*]] = call { float, float } @llvm.sincos.f32(float 0x7FF0000000000000)
+; CHECK-NEXT:    ret { float, float } [[RET]]
+;
+  %ret = call { float, float } @llvm.sincos.f32(float 0x7FF0000000000000)
+  ret { float, float } %ret
+}
+
+define { float, float } @sincos_neginf() {
+; CHECK-LABEL: define { float, float } @sincos_neginf() {
+; CHECK-NEXT:    [[RET:%.*]] = call { float, float } @llvm.sincos.f32(float 0xFFF0000000000000)
+; CHECK-NEXT:    ret { float, float } [[RET]]
+;
+  %ret = call { float, float } @llvm.sincos.f32(float 0xFFF0000000000000)
+  ret { float, float } %ret
+}
+
+define { float, float } @sincos_qnan() {
+; CHECK-LABEL: define { float, float } @sincos_qnan() {
+; CHECK-NEXT:    [[RET:%.*]] = call { float, float } @llvm.sincos.f32(float 0x7FF8000000000000)
+; CHECK-NEXT:    ret { float, float } [[RET]]
+;
+  %ret = call { float, float } @llvm.sincos.f32(float 0x7FF8000000000000)
+  ret { float, float } %ret
+}
+
+define { float, float } @sincos_snan() {
+; CHECK-LABEL: define { float, float } @sincos_snan() {
+; CHECK-NEXT:    [[RET:%.*]] = call { float, float } @llvm.sincos.f32(float 0x7FF0000020000000)
+; CHECK-NEXT:    ret { float, float } [[RET]]
+;
+  %ret = call { float, float } @llvm.sincos.f32(float bitcast (i32 2139095041 to float))
+  ret { float, float } %ret
+}