[llvm] [WIP] [IR] Add `llvm.sincos` intrinsic (PR #107639)

Benjamin Maxwell via llvm-commits llvm-commits at lists.llvm.org
Mon Sep 9 02:09:27 PDT 2024


https://github.com/MacDue updated https://github.com/llvm/llvm-project/pull/107639

>From 2a47fd7061a2b1f4968a5021c95b946ac5eda389 Mon Sep 17 00:00:00 2001
From: Benjamin Maxwell <benjamin.maxwell at arm.com>
Date: Fri, 6 Sep 2024 20:41:42 +0000
Subject: [PATCH] [IR] Add `llvm.sincos` intrinsic

This adds the `llvm.sincos` intrinsic, legalization, and lowering.

The `llvm.sincos` intrinsic takes a floating-point value and returns
both the sine and cosine (as a struct).

```
declare { float, float }          @llvm.sincos.f32(float  %Val)
declare { double, double }        @llvm.sincos.f64(double %Val)
declare { x86_fp80, x86_fp80 }    @llvm.sincos.f80(x86_fp80  %Val)
declare { fp128, fp128 }          @llvm.sincos.f128(fp128 %Val)
declare { ppc_fp128, ppc_fp128 }  @llvm.sincos.ppcf128(ppc_fp128  %Val)
declare { <4 x float>, <4 x float> } @llvm.sincos.v4f32(<4 x float>  %Val)
```

The lowering is built on top of the existing FSINCOS ISD node, with
additional type legalization to allow for f16, f128, and vector values.
---
 llvm/docs/LangRef.rst                         |  45 ++
 llvm/include/llvm/CodeGen/BasicTTIImpl.h      |   3 +
 .../CodeGen/GlobalISel/MachineIRBuilder.h     |   7 +
 .../include/llvm/CodeGen/RuntimeLibcallUtil.h |   4 +
 llvm/include/llvm/IR/Intrinsics.td            |   2 +
 llvm/include/llvm/Support/TargetOpcodes.def   |   3 +
 llvm/include/llvm/Target/GenericOpcodes.td    |   7 +
 llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp  |   7 +
 llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp |  68 +--
 .../SelectionDAG/LegalizeFloatTypes.cpp       |  78 +++
 llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h |   8 +-
 .../SelectionDAG/LegalizeVectorOps.cpp        |   1 +
 .../SelectionDAG/LegalizeVectorTypes.cpp      |  16 +-
 .../SelectionDAG/SelectionDAGBuilder.cpp      |  15 +-
 llvm/lib/CodeGen/TargetLoweringBase.cpp       |  10 +-
 .../lib/Target/ARM/ARMTargetTransformInfo.cpp |   1 +
 .../GlobalISel/legalizer-info-validation.mir  |   3 +
 llvm/test/CodeGen/AArch64/llvm.sincos.ll      | 376 ++++++++++++++
 llvm/test/CodeGen/ARM/llvm.sincos.ll          | 464 ++++++++++++++++++
 19 files changed, 1061 insertions(+), 57 deletions(-)
 create mode 100644 llvm/test/CodeGen/AArch64/llvm.sincos.ll
 create mode 100644 llvm/test/CodeGen/ARM/llvm.sincos.ll

diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index c75b75edaf2ca0..a8958808bea7e2 100644
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -15342,6 +15342,8 @@ Semantics:
 This function returns the first value raised to the second power with an
 unspecified sequence of rounding operations.
 
+.. _t_llvm_sin:
+
 '``llvm.sin.*``' Intrinsic
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -15379,6 +15381,8 @@ trapping or setting ``errno``.
 When specified with the fast-math-flag 'afn', the result may be approximated
 using a less accurate calculation.
 
+.. _t_llvm_cos:
+
 '``llvm.cos.*``' Intrinsic
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -15675,6 +15679,47 @@ trapping or setting ``errno``.
 When specified with the fast-math-flag 'afn', the result may be approximated
 using a less accurate calculation.
 
+
+'``llvm.sincos.*``' Intrinsic
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Syntax:
+"""""""
+
+This is an overloaded intrinsic. You can use ``llvm.sincos`` on any
+floating-point or vector of floating-point type. Not all targets support
+all types however.
+
+::
+
+      declare { float, float }          @llvm.sincos.f32(float  %Val)
+      declare { double, double }        @llvm.sincos.f64(double %Val)
+      declare { x86_fp80, x86_fp80 }    @llvm.sincos.f80(x86_fp80  %Val)
+      declare { fp128, fp128 }          @llvm.sincos.f128(fp128 %Val)
+      declare { ppc_fp128, ppc_fp128 }  @llvm.sincos.ppcf128(ppc_fp128  %Val)
+      declare { <4 x float>, <4 x float> } @llvm.sincos.v4f32(<4 x float>  %Val)
+
+Overview:
+"""""""""
+
+The '``llvm.sincos.*``' intrinsics returns the sine and cosine of the operand.
+
+Arguments:
+""""""""""
+
+The argument is a :ref:`floating-point <t_floating>` or :ref:`vector <t_vector>`
+of floating-point values. Returns two values matching the argument type in a
+struct.
+
+Semantics:
+""""""""""
+
+This intrinsic is equivalent to a calling both :ref:`llvm.sin <t_llvm_sin>`
+and :ref:`llvm.cos <t_llvm_cos>` on the argument.
+
+The first result is the sine of the argument and the second result is the cosine
+of the argument.
+
 '``llvm.pow.*``' Intrinsic
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
diff --git a/llvm/include/llvm/CodeGen/BasicTTIImpl.h b/llvm/include/llvm/CodeGen/BasicTTIImpl.h
index 50dc7d5c54c54a..d979600b81710c 100644
--- a/llvm/include/llvm/CodeGen/BasicTTIImpl.h
+++ b/llvm/include/llvm/CodeGen/BasicTTIImpl.h
@@ -1975,6 +1975,9 @@ class BasicTTIImplBase : public TargetTransformInfoImplCRTPBase<T> {
     case Intrinsic::cos:
       ISD = ISD::FCOS;
       break;
+    case Intrinsic::sincos:
+      ISD = ISD::FSINCOS;
+      break;
     case Intrinsic::tan:
       ISD = ISD::FTAN;
       break;
diff --git a/llvm/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h b/llvm/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
index 56a77b8596a18b..5cd51767796aa6 100644
--- a/llvm/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
+++ b/llvm/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
@@ -1974,6 +1974,13 @@ class MachineIRBuilder {
     return buildInstr(TargetOpcode::G_FFREXP, {Fract, Exp}, {Src}, Flags);
   }
 
+  /// Build and insert \p Sin, \p Cos = G_FSINCOS \p Src
+  MachineInstrBuilder
+  buildFSincos(const DstOp &Sin, const DstOp &Cos, const SrcOp &Src,
+               std::optional<unsigned> Flags = std::nullopt) {
+    return buildInstr(TargetOpcode::G_FSINCOS, {Sin, Cos}, {Src}, Flags);
+  }
+
   /// Build and insert \p Res = G_FCOPYSIGN \p Op0, \p Op1
   MachineInstrBuilder buildFCopysign(const DstOp &Dst, const SrcOp &Src0,
                                      const SrcOp &Src1) {
diff --git a/llvm/include/llvm/CodeGen/RuntimeLibcallUtil.h b/llvm/include/llvm/CodeGen/RuntimeLibcallUtil.h
index 7a131645893921..045ec7d3653119 100644
--- a/llvm/include/llvm/CodeGen/RuntimeLibcallUtil.h
+++ b/llvm/include/llvm/CodeGen/RuntimeLibcallUtil.h
@@ -62,6 +62,10 @@ Libcall getLDEXP(EVT RetVT);
 /// UNKNOWN_LIBCALL if there is none.
 Libcall getFREXP(EVT RetVT);
 
+/// getFSINCOS - Return the FSINCOS_* value for the given types, or
+/// UNKNOWN_LIBCALL if there is none.
+Libcall getFSINCOS(EVT RetVT);
+
 /// Return the SYNC_FETCH_AND_* value for the given opcode and type, or
 /// UNKNOWN_LIBCALL if there is none.
 Libcall getSYNC(unsigned Opc, MVT VT);
diff --git a/llvm/include/llvm/IR/Intrinsics.td b/llvm/include/llvm/IR/Intrinsics.td
index 232d6be1073f49..13390b86249632 100644
--- a/llvm/include/llvm/IR/Intrinsics.td
+++ b/llvm/include/llvm/IR/Intrinsics.td
@@ -1045,6 +1045,8 @@ let IntrProperties = [IntrNoMem, IntrSpeculatable, IntrWillReturn] in {
   def int_nearbyint : DefaultAttrsIntrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
   def int_round : DefaultAttrsIntrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
   def int_roundeven    : DefaultAttrsIntrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
+  def int_sincos : DefaultAttrsIntrinsic<[LLVMMatchType<0>, LLVMMatchType<0>],
+                             [llvm_anyfloat_ty]>;
 
   // Truncate a floating point number with a specific rounding mode
   def int_fptrunc_round : DefaultAttrsIntrinsic<[ llvm_anyfloat_ty ],
diff --git a/llvm/include/llvm/Support/TargetOpcodes.def b/llvm/include/llvm/Support/TargetOpcodes.def
index 635c265a433631..247d1a5fb4bbde 100644
--- a/llvm/include/llvm/Support/TargetOpcodes.def
+++ b/llvm/include/llvm/Support/TargetOpcodes.def
@@ -796,6 +796,9 @@ HANDLE_TARGET_OPCODE(G_FCOS)
 /// Floating point sine.
 HANDLE_TARGET_OPCODE(G_FSIN)
 
+/// Floating point combined sine and cosine.
+HANDLE_TARGET_OPCODE(G_FSINCOS)
+
 /// Floating point tangent.
 HANDLE_TARGET_OPCODE(G_FTAN)
 
diff --git a/llvm/include/llvm/Target/GenericOpcodes.td b/llvm/include/llvm/Target/GenericOpcodes.td
index 36a0a087ba457c..372c5037980e2d 100644
--- a/llvm/include/llvm/Target/GenericOpcodes.td
+++ b/llvm/include/llvm/Target/GenericOpcodes.td
@@ -1008,6 +1008,13 @@ def G_FSIN : GenericInstruction {
   let hasSideEffects = false;
 }
 
+// Floating point combined sine and cosine.
+def G_FSINCOS : GenericInstruction {
+  let OutOperandList = (outs type0:$dst1, type0:$dst2);
+  let InOperandList = (ins type0:$src1);
+  let hasSideEffects = false;
+}
+
 // Floating point tangent of a value.
 def G_FTAN : GenericInstruction {
   let OutOperandList = (outs type0:$dst);
diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index b290d7fb4ce4a1..bd930673a95ab0 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -2340,6 +2340,13 @@ bool IRTranslator::translateKnownIntrinsic(const CallInst &CI, Intrinsic::ID ID,
                            MachineInstr::copyFlagsFromInstruction(CI));
     return true;
   }
+  case Intrinsic::sincos: {
+    ArrayRef<Register> VRegs = getOrCreateVRegs(CI);
+    MIRBuilder.buildFSincos(VRegs[0], VRegs[1],
+                            getOrCreateVReg(*CI.getArgOperand(0)),
+                            MachineInstr::copyFlagsFromInstruction(CI));
+    return true;
+  }
   case Intrinsic::memcpy_inline:
     return translateMemFunc(CI, MIRBuilder, TargetOpcode::G_MEMCPY_INLINE);
   case Intrinsic::memcpy:
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index f5fbc01cd95e96..873856f513118a 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2326,15 +2326,7 @@ SelectionDAGLegalize::ExpandDivRemLibCall(SDNode *Node,
 
 /// Return true if sincos libcall is available.
 static bool isSinCosLibcallAvailable(SDNode *Node, const TargetLowering &TLI) {
-  RTLIB::Libcall LC;
-  switch (Node->getSimpleValueType(0).SimpleTy) {
-  default: llvm_unreachable("Unexpected request for libcall!");
-  case MVT::f32:     LC = RTLIB::SINCOS_F32; break;
-  case MVT::f64:     LC = RTLIB::SINCOS_F64; break;
-  case MVT::f80:     LC = RTLIB::SINCOS_F80; break;
-  case MVT::f128:    LC = RTLIB::SINCOS_F128; break;
-  case MVT::ppcf128: LC = RTLIB::SINCOS_PPCF128; break;
-  }
+  RTLIB::Libcall LC = RTLIB::getFSINCOS(Node->getSimpleValueType(0).SimpleTy);
   return TLI.getLibcallName(LC) != nullptr;
 }
 
@@ -2355,24 +2347,8 @@ static bool useSinCos(SDNode *Node) {
 }
 
 /// Issue libcalls to sincos to compute sin / cos pairs.
-void
-SelectionDAGLegalize::ExpandSinCosLibCall(SDNode *Node,
-                                          SmallVectorImpl<SDValue> &Results) {
-  RTLIB::Libcall LC;
-  switch (Node->getSimpleValueType(0).SimpleTy) {
-  default: llvm_unreachable("Unexpected request for libcall!");
-  case MVT::f32:     LC = RTLIB::SINCOS_F32; break;
-  case MVT::f64:     LC = RTLIB::SINCOS_F64; break;
-  case MVT::f80:     LC = RTLIB::SINCOS_F80; break;
-  case MVT::f128:    LC = RTLIB::SINCOS_F128; break;
-  case MVT::ppcf128: LC = RTLIB::SINCOS_PPCF128; break;
-  }
-
-  // The input chain to this libcall is the entry node of the function.
-  // Legalizing the call will automatically add the previous call to the
-  // dependence.
-  SDValue InChain = DAG.getEntryNode();
-
+void SelectionDAGLegalize::ExpandSinCosLibCall(
+    SDNode *Node, SmallVectorImpl<SDValue> &Results) {
   EVT RetVT = Node->getValueType(0);
   Type *RetTy = RetVT.getTypeForEVT(*DAG.getContext());
 
@@ -2382,41 +2358,31 @@ SelectionDAGLegalize::ExpandSinCosLibCall(SDNode *Node,
   // Pass the argument.
   Entry.Node = Node->getOperand(0);
   Entry.Ty = RetTy;
-  Entry.IsSExt = false;
-  Entry.IsZExt = false;
   Args.push_back(Entry);
 
   // Pass the return address of sin.
   SDValue SinPtr = DAG.CreateStackTemporary(RetVT);
   Entry.Node = SinPtr;
   Entry.Ty = PointerType::getUnqual(RetTy->getContext());
-  Entry.IsSExt = false;
-  Entry.IsZExt = false;
   Args.push_back(Entry);
 
   // Also pass the return address of the cos.
   SDValue CosPtr = DAG.CreateStackTemporary(RetVT);
   Entry.Node = CosPtr;
   Entry.Ty = PointerType::getUnqual(RetTy->getContext());
-  Entry.IsSExt = false;
-  Entry.IsZExt = false;
   Args.push_back(Entry);
 
-  SDValue Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC),
-                                         TLI.getPointerTy(DAG.getDataLayout()));
+  RTLIB::Libcall LC = RTLIB::getFSINCOS(RetVT);
+  auto [Call, Chain] = ExpandLibCall(LC, Node, std::move(Args), false);
 
   SDLoc dl(Node);
-  TargetLowering::CallLoweringInfo CLI(DAG);
-  CLI.setDebugLoc(dl).setChain(InChain).setLibCallee(
-      TLI.getLibcallCallingConv(LC), Type::getVoidTy(*DAG.getContext()), Callee,
-      std::move(Args));
-
-  std::pair<SDValue, SDValue> CallInfo = TLI.LowerCallTo(CLI);
-
-  Results.push_back(
-      DAG.getLoad(RetVT, dl, CallInfo.second, SinPtr, MachinePointerInfo()));
-  Results.push_back(
-      DAG.getLoad(RetVT, dl, CallInfo.second, CosPtr, MachinePointerInfo()));
+  for (SDValue OutPtr : {SinPtr, CosPtr}) {
+    int FrameIdx = cast<FrameIndexSDNode>(OutPtr)->getIndex();
+    auto PtrInfo =
+        MachinePointerInfo::getFixedStack(DAG.getMachineFunction(), FrameIdx);
+    SDValue LoadExp = DAG.getLoad(RetVT, dl, Chain, OutPtr, PtrInfo);
+    Results.push_back(LoadExp);
+  }
 }
 
 SDValue SelectionDAGLegalize::expandLdexp(SDNode *Node) const {
@@ -5581,6 +5547,16 @@ void SelectionDAGLegalize::PromoteNode(SDNode *Node) {
     Results.push_back(Tmp2.getValue(1));
     break;
   }
+  case ISD::FSINCOS: {
+    Tmp1 = DAG.getNode(ISD::FP_EXTEND, dl, NVT, Node->getOperand(0));
+    Tmp2 = DAG.getNode(ISD::FSINCOS, dl, {NVT, NVT}, Tmp1);
+
+    for (unsigned ResNum = 0; ResNum < Node->getNumValues(); ResNum++)
+      Results.push_back(
+          DAG.getNode(ISD::FP_ROUND, dl, OVT, Tmp2.getValue(ResNum),
+                      DAG.getIntPtrConstant(0, dl, /*isTarget=*/true)));
+    break;
+  }
   case ISD::FFLOOR:
   case ISD::FCEIL:
   case ISD::FRINT:
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
index b5c80005a0ecc1..27e301902f191d 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
@@ -127,6 +127,7 @@ void DAGTypeLegalizer::SoftenFloatResult(SDNode *N, unsigned ResNo) {
     case ISD::FLDEXP:
     case ISD::STRICT_FLDEXP: R = SoftenFloatRes_ExpOp(N); break;
     case ISD::FFREXP:        R = SoftenFloatRes_FFREXP(N); break;
+    case ISD::FSINCOS:       R = SoftenFloatRes_FSINCOS(N); break;
     case ISD::STRICT_FREM:
     case ISD::FREM:        R = SoftenFloatRes_FREM(N); break;
     case ISD::STRICT_FRINT:
@@ -765,6 +766,43 @@ SDValue DAGTypeLegalizer::SoftenFloatRes_FFREXP(SDNode *N) {
   return ReturnVal;
 }
 
+SDValue DAGTypeLegalizer::SoftenFloatRes_FSINCOS(SDNode *N) {
+  assert(!N->isStrictFPOpcode() && "strictfp not implemented for fsincos");
+  EVT VT = N->getValueType(0);
+  RTLIB::Libcall LC = RTLIB::getFSINCOS(VT);
+
+  EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT);
+  SDValue StackSlotSin = DAG.CreateStackTemporary(NVT);
+  SDValue StackSlotCos = DAG.CreateStackTemporary(NVT);
+
+  SDLoc DL(N);
+
+  TargetLowering::MakeLibCallOptions CallOptions;
+  std::array Ops{GetSoftenedFloat(N->getOperand(0)), StackSlotSin,
+                 StackSlotCos};
+  std::array OpsVT{VT, StackSlotSin.getValueType(),
+                   StackSlotCos.getValueType()};
+
+  // TODO: setTypeListBeforeSoften can't properly express multiple return types,
+  // but since both returns have the same type for sincos it should be okay.
+  CallOptions.setTypeListBeforeSoften({OpsVT}, VT, true);
+
+  // FIXME: Don't crash when LC is unavailable.
+  auto [ReturnVal, Chain] = TLI.makeLibCall(DAG, LC, NVT, Ops, CallOptions, DL,
+                                            /*Chain=*/SDValue());
+  unsigned ResNo = 0;
+  for (SDValue OutPtr : {StackSlotSin, StackSlotCos}) {
+    int FrameIdx = cast<FrameIndexSDNode>(OutPtr)->getIndex();
+    auto PtrInfo =
+        MachinePointerInfo::getFixedStack(DAG.getMachineFunction(), FrameIdx);
+
+    SDValue LoadExp = DAG.getLoad(NVT, DL, Chain, OutPtr, PtrInfo);
+    SetSoftenedFloat(SDValue(N, ResNo++), LoadExp);
+  }
+
+  return SDValue();
+}
+
 SDValue DAGTypeLegalizer::SoftenFloatRes_FREM(SDNode *N) {
   return SoftenFloatRes_Binary(N, GetFPLibCall(N->getValueType(0),
                                                RTLIB::REM_F32,
@@ -2689,6 +2727,10 @@ void DAGTypeLegalizer::PromoteFloatResult(SDNode *N, unsigned ResNo) {
     case ISD::FLDEXP:     R = PromoteFloatRes_ExpOp(N); break;
     case ISD::FFREXP:     R = PromoteFloatRes_FFREXP(N); break;
 
+    case ISD::FSINCOS:
+      R = PromoteFloatRes_FSINCOS(N);
+      break;
+
     case ISD::FP_ROUND:   R = PromoteFloatRes_FP_ROUND(N); break;
     case ISD::STRICT_FP_ROUND:
       R = PromoteFloatRes_STRICT_FP_ROUND(N);
@@ -2884,6 +2926,18 @@ SDValue DAGTypeLegalizer::PromoteFloatRes_FFREXP(SDNode *N) {
   return Res;
 }
 
+SDValue DAGTypeLegalizer::PromoteFloatRes_FSINCOS(SDNode *N) {
+  EVT VT = N->getValueType(0);
+  EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT);
+  SDValue Op = GetPromotedFloat(N->getOperand(0));
+  SDValue Res = DAG.getNode(N->getOpcode(), SDLoc(N), {NVT, NVT}, Op);
+
+  for (unsigned ResNum = 0; ResNum < N->getNumValues(); ResNum++)
+    SetPromotedFloat(SDValue(N, ResNum), Res.getValue(ResNum));
+
+  return SDValue();
+}
+
 // Explicit operation to reduce precision.  Reduce the value to half precision
 // and promote it back to the legal type.
 SDValue DAGTypeLegalizer::PromoteFloatRes_FP_ROUND(SDNode *N) {
@@ -3132,6 +3186,10 @@ void DAGTypeLegalizer::SoftPromoteHalfResult(SDNode *N, unsigned ResNo) {
 
   case ISD::FFREXP:      R = SoftPromoteHalfRes_FFREXP(N); break;
 
+  case ISD::FSINCOS:
+    R = SoftPromoteHalfRes_FSINCOS(N);
+    break;
+
   case ISD::LOAD:        R = SoftPromoteHalfRes_LOAD(N); break;
   case ISD::ATOMIC_LOAD:
     R = SoftPromoteHalfRes_ATOMIC_LOAD(N);
@@ -3286,6 +3344,26 @@ SDValue DAGTypeLegalizer::SoftPromoteHalfRes_FFREXP(SDNode *N) {
   return DAG.getNode(GetPromotionOpcode(NVT, OVT), dl, MVT::i16, Res);
 }
 
+SDValue DAGTypeLegalizer::SoftPromoteHalfRes_FSINCOS(SDNode *N) {
+  EVT OVT = N->getValueType(0);
+  EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), OVT);
+  SDValue Op = GetSoftPromotedHalf(N->getOperand(0));
+  SDLoc dl(N);
+
+  // Promote to the larger FP type.
+  Op = DAG.getNode(GetPromotionOpcode(OVT, NVT), dl, NVT, Op);
+  SDValue Res = DAG.getNode(N->getOpcode(), dl, DAG.getVTList(NVT, NVT), Op);
+
+  // Convert back to FP16 as an integer.
+  ISD::NodeType Truncate = GetPromotionOpcode(NVT, OVT);
+  for (unsigned ResNum = 0; ResNum < N->getNumValues(); ResNum++) {
+    SDValue Trunc = DAG.getNode(Truncate, dl, MVT::i16, Res.getValue(ResNum));
+    SetSoftPromotedHalf(SDValue(N, ResNum), Trunc);
+  }
+
+  return SDValue();
+}
+
 SDValue DAGTypeLegalizer::SoftPromoteHalfRes_FP_ROUND(SDNode *N) {
   EVT RVT = N->getValueType(0);
   EVT SVT = N->getOperand(0).getValueType();
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
index f15e3d7fd1eb63..adc2c67e00138e 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
@@ -596,6 +596,7 @@ class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer {
   SDValue SoftenFloatRes_FPOW(SDNode *N);
   SDValue SoftenFloatRes_ExpOp(SDNode *N);
   SDValue SoftenFloatRes_FFREXP(SDNode *N);
+  SDValue SoftenFloatRes_FSINCOS(SDNode *N);
   SDValue SoftenFloatRes_FREEZE(SDNode *N);
   SDValue SoftenFloatRes_FREM(SDNode *N);
   SDValue SoftenFloatRes_FRINT(SDNode *N);
@@ -742,6 +743,7 @@ class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer {
   SDValue PromoteFloatRes_FMAD(SDNode *N);
   SDValue PromoteFloatRes_ExpOp(SDNode *N);
   SDValue PromoteFloatRes_FFREXP(SDNode *N);
+  SDValue PromoteFloatRes_FSINCOS(SDNode *N);
   SDValue PromoteFloatRes_FP_ROUND(SDNode *N);
   SDValue PromoteFloatRes_STRICT_FP_ROUND(SDNode *N);
   SDValue PromoteFloatRes_LOAD(SDNode *N);
@@ -790,6 +792,7 @@ class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer {
   SDValue SoftPromoteHalfRes_FMAD(SDNode *N);
   SDValue SoftPromoteHalfRes_ExpOp(SDNode *N);
   SDValue SoftPromoteHalfRes_FFREXP(SDNode *N);
+  SDValue SoftPromoteHalfRes_FSINCOS(SDNode *N);
   SDValue SoftPromoteHalfRes_FP_ROUND(SDNode *N);
   SDValue SoftPromoteHalfRes_LOAD(SDNode *N);
   SDValue SoftPromoteHalfRes_ATOMIC_LOAD(SDNode *N);
@@ -861,7 +864,7 @@ class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer {
   SDValue ScalarizeVecRes_IS_FPCLASS(SDNode *N);
 
   SDValue ScalarizeVecRes_FIX(SDNode *N);
-  SDValue ScalarizeVecRes_FFREXP(SDNode *N, unsigned ResNo);
+  SDValue ScalarizeVecRes_UnaryOpWithTwoResults(SDNode *N, unsigned ResNo);
 
   // Vector Operand Scalarization: <1 x ty> -> ty.
   bool ScalarizeVectorOperand(SDNode *N, unsigned OpNo);
@@ -915,7 +918,8 @@ class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer {
   void SplitVecRes_CMP(SDNode *N, SDValue &Lo, SDValue &Hi);
   void SplitVecRes_UnaryOp(SDNode *N, SDValue &Lo, SDValue &Hi);
   void SplitVecRes_ADDRSPACECAST(SDNode *N, SDValue &Lo, SDValue &Hi);
-  void SplitVecRes_FFREXP(SDNode *N, unsigned ResNo, SDValue &Lo, SDValue &Hi);
+  void SplitVecRes_UnaryOpWithTwoResults(SDNode *N, unsigned ResNo, SDValue &Lo,
+                                         SDValue &Hi);
   void SplitVecRes_ExtendOp(SDNode *N, SDValue &Lo, SDValue &Hi);
   void SplitVecRes_InregOp(SDNode *N, SDValue &Lo, SDValue &Hi);
   void SplitVecRes_ExtVecInRegOp(SDNode *N, SDValue &Lo, SDValue &Hi);
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
index 29dae4e27c7689..4b55ba7e8d88da 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
@@ -451,6 +451,7 @@ SDValue VectorLegalizer::LegalizeOp(SDValue Op) {
   case ISD::UMULO:
   case ISD::FCANONICALIZE:
   case ISD::FFREXP:
+  case ISD::FSINCOS:
   case ISD::SADDSAT:
   case ISD::UADDSAT:
   case ISD::SSUBSAT:
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
index ae994d492d57e6..bbbc2cbef4cc5e 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
@@ -130,7 +130,8 @@ void DAGTypeLegalizer::ScalarizeVectorResult(SDNode *N, unsigned ResNo) {
     R = ScalarizeVecRes_ADDRSPACECAST(N);
     break;
   case ISD::FFREXP:
-    R = ScalarizeVecRes_FFREXP(N, ResNo);
+  case ISD::FSINCOS:
+    R = ScalarizeVecRes_UnaryOpWithTwoResults(N, ResNo);
     break;
   case ISD::ADD:
   case ISD::AND:
@@ -275,7 +276,9 @@ SDValue DAGTypeLegalizer::ScalarizeVecRes_FIX(SDNode *N) {
                      Op2, N->getFlags());
 }
 
-SDValue DAGTypeLegalizer::ScalarizeVecRes_FFREXP(SDNode *N, unsigned ResNo) {
+SDValue
+DAGTypeLegalizer::ScalarizeVecRes_UnaryOpWithTwoResults(SDNode *N,
+                                                        unsigned ResNo) {
   assert(N->getValueType(0).getVectorNumElements() == 1 &&
          "Unexpected vector type!");
   SDValue Elt = GetScalarizedVector(N->getOperand(0));
@@ -1252,7 +1255,8 @@ void DAGTypeLegalizer::SplitVectorResult(SDNode *N, unsigned ResNo) {
     SplitVecRes_ADDRSPACECAST(N, Lo, Hi);
     break;
   case ISD::FFREXP:
-    SplitVecRes_FFREXP(N, ResNo, Lo, Hi);
+  case ISD::FSINCOS:
+    SplitVecRes_UnaryOpWithTwoResults(N, ResNo, Lo, Hi);
     break;
 
   case ISD::ANY_EXTEND:
@@ -2606,8 +2610,10 @@ void DAGTypeLegalizer::SplitVecRes_ADDRSPACECAST(SDNode *N, SDValue &Lo,
   Hi = DAG.getAddrSpaceCast(dl, HiVT, Hi, SrcAS, DestAS);
 }
 
-void DAGTypeLegalizer::SplitVecRes_FFREXP(SDNode *N, unsigned ResNo,
-                                          SDValue &Lo, SDValue &Hi) {
+void DAGTypeLegalizer::SplitVecRes_UnaryOpWithTwoResults(SDNode *N,
+                                                         unsigned ResNo,
+                                                         SDValue &Lo,
+                                                         SDValue &Hi) {
   SDLoc dl(N);
   auto [LoVT, HiVT] = DAG.GetSplitDestVTs(N->getValueType(0));
   auto [LoVT1, HiVT1] = DAG.GetSplitDestVTs(N->getValueType(1));
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 382a555aa656f2..6fb35ea916c74d 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -6912,12 +6912,23 @@ void SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I,
                              getValue(I.getArgOperand(0)),
                              getValue(I.getArgOperand(1)), Flags));
     return;
+  case Intrinsic::sincos:
   case Intrinsic::frexp: {
+    unsigned Opcode;
+    switch (Intrinsic) {
+    default:
+      llvm_unreachable("unexpected intrinsic");
+    case Intrinsic::sincos:
+      Opcode = ISD::FSINCOS;
+      break;
+    case Intrinsic::frexp:
+      Opcode = ISD::FFREXP;
+      break;
+    }
     SmallVector<EVT, 2> ValueVTs;
     ComputeValueVTs(TLI, DAG.getDataLayout(), I.getType(), ValueVTs);
     SDVTList VTs = DAG.getVTList(ValueVTs);
-    setValue(&I,
-             DAG.getNode(ISD::FFREXP, sdl, VTs, getValue(I.getArgOperand(0))));
+    setValue(&I, DAG.getNode(Opcode, sdl, VTs, getValue(I.getArgOperand(0))));
     return;
   }
   case Intrinsic::arithmetic_fence: {
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
index eb3190c7cd247a..b2cc2b5eab0138 100644
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -398,6 +398,11 @@ RTLIB::Libcall RTLIB::getFREXP(EVT RetVT) {
                       FREXP_PPCF128);
 }
 
+RTLIB::Libcall RTLIB::getFSINCOS(EVT RetVT) {
+  return getFPLibCall(RetVT, SINCOS_F32, SINCOS_F64, SINCOS_F80, SINCOS_F128,
+                      SINCOS_PPCF128);
+}
+
 RTLIB::Libcall RTLIB::getOutlineAtomicHelper(const Libcall (&LC)[5][4],
                                              AtomicOrdering Order,
                                              uint64_t MemSize) {
@@ -766,8 +771,9 @@ void TargetLoweringBase::initActions() {
     setOperationAction({ISD::BITREVERSE, ISD::PARITY}, VT, Expand);
 
     // These library functions default to expand.
-    setOperationAction({ISD::FROUND, ISD::FPOWI, ISD::FLDEXP, ISD::FFREXP}, VT,
-                       Expand);
+    setOperationAction(
+        {ISD::FROUND, ISD::FPOWI, ISD::FLDEXP, ISD::FFREXP, ISD::FSINCOS}, VT,
+        Expand);
 
     // These operations default to expand for vector types.
     if (VT.isVector())
diff --git a/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp b/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
index 912569a8fec118..a587d734c5f1be 100644
--- a/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
@@ -2044,6 +2044,7 @@ bool ARMTTIImpl::isLoweredToCall(const Function *F) {
   case Intrinsic::powi:
   case Intrinsic::sin:
   case Intrinsic::cos:
+  case Intrinsic::sincos:
   case Intrinsic::pow:
   case Intrinsic::log:
   case Intrinsic::log10:
diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir b/llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
index b3b85090d11251..128cafab5c6c73 100644
--- a/llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
+++ b/llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
@@ -688,6 +688,9 @@
 # DEBUG-NEXT: .. opcode {{[0-9]+}} is aliased to {{[0-9]+}}
 # DEBUG-NEXT: .. the first uncovered type index: 1, OK
 # DEBUG-NEXT: .. the first uncovered imm index: 0, OK
+# DEBUG-NEXT: G_FSINCOS (opcode {{[0-9]+}}): 1 type index, 0 imm indices
+# DEBUG-NEXT: .. type index coverage check SKIPPED: no rules defined
+# DEBUG-NEXT: .. imm index coverage check SKIPPED: no rules defined
 # DEBUG-NEXT: G_FTAN (opcode {{[0-9]+}}): 1 type index, 0 imm indices
 # DEBUG-NEXT: .. opcode {{[0-9]+}} is aliased to {{[0-9]+}}
 # DEBUG-NEXT: .. the first uncovered type index: 1, OK
diff --git a/llvm/test/CodeGen/AArch64/llvm.sincos.ll b/llvm/test/CodeGen/AArch64/llvm.sincos.ll
new file mode 100644
index 00000000000000..4dc762410d27db
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/llvm.sincos.ll
@@ -0,0 +1,376 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
+; RUN: llc -mtriple=aarch64-gnu-linux < %s | FileCheck -check-prefixes=CHECK %s
+
+define { half, half } @test_sincos_f16(half %a) {
+; CHECK-LABEL: test_sincos_f16:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    fcvt s0, h0
+; CHECK-NEXT:    add x0, sp, #12
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldp s1, s0, [sp, #8]
+; CHECK-NEXT:    fcvt h0, s0
+; CHECK-NEXT:    fcvt h1, s1
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %result = call { half, half } @llvm.sincos.f16(half %a)
+  ret { half, half } %result
+}
+
+define half @test_sincos_f16_only_use_sin(half %a) {
+; CHECK-LABEL: test_sincos_f16_only_use_sin:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    fcvt s0, h0
+; CHECK-NEXT:    add x0, sp, #12
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr s0, [sp, #12]
+; CHECK-NEXT:    fcvt h0, s0
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %result = call { half, half } @llvm.sincos.f16(half %a)
+  %result.0 = extractvalue { half, half } %result, 0
+  ret half %result.0
+}
+
+define half @test_sincos_f16_only_use_cos(half %a) {
+; CHECK-LABEL: test_sincos_f16_only_use_cos:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    fcvt s0, h0
+; CHECK-NEXT:    add x0, sp, #12
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr s0, [sp, #8]
+; CHECK-NEXT:    fcvt h0, s0
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %result = call { half, half } @llvm.sincos.f16(half %a)
+  %result.1 = extractvalue { half, half } %result, 1
+  ret half %result.1
+}
+
+; FIXME: Implement WidenVectorResult for FSINCOS
+; define { <2 x half>, <2 x half> } @test_sincos_v2f16(<2 x half> %a) {
+;   %result = call { <2 x half>, <2 x half> } @llvm.sincos.v2f16(<2 x half> %a)
+;   ret { <2 x half>, <2 x half> } %result
+; }
+
+; FIXME: Implement WidenVectorResult for FSINCOS
+; define <2 x half> @test_sincos_v2f16_only_use_sin(<2 x half> %a) {
+;   %result = call { <2 x half>, <2 x half> } @llvm.sincos.v2f16(<2 x half> %a)
+;   %result.0 = extractvalue { <2 x half>, <2 x half> } %result, 0
+;   ret <2 x half> %result.0
+; }
+
+; FIXME: Implement WidenVectorResult for FSINCOS
+; define <2 x half> @test_sincos_v2f16_only_use_cos(<2 x half> %a) {
+;   %result = call { <2 x half>, <2 x half> } @llvm.sincos.v2f16(<2 x half> %a)
+;   %result.1 = extractvalue { <2 x half>, <2 x half> } %result, 1
+;   ret <2 x half> %result.1
+; }
+
+define { float, float } @test_sincos_f32(float %a) {
+; CHECK-LABEL: test_sincos_f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    add x0, sp, #12
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldp s1, s0, [sp, #8]
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %result = call { float, float } @llvm.sincos.f32(float %a)
+  ret { float, float } %result
+}
+
+define float @test_sincos_f32_only_use_sin(float %a) {
+; CHECK-LABEL: test_sincos_f32_only_use_sin:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    add x0, sp, #12
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr s0, [sp, #12]
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %result = call { float, float } @llvm.sincos.f32(float %a)
+  %result.0 = extractvalue { float, float } %result, 0
+  ret float %result.0
+}
+
+define float @test_sincos_f32_only_use_cos(float %a) {
+; CHECK-LABEL: test_sincos_f32_only_use_cos:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    add x0, sp, #12
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr s0, [sp, #8]
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %result = call { float, float } @llvm.sincos.f32(float %a)
+  %result.1 = extractvalue { float, float } %result, 1
+  ret float %result.1
+}
+
+define { <2 x float>, <2 x float> } @test_sincos_v2f32(<2 x float> %a) {
+; CHECK-LABEL: test_sincos_v2f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #64
+; CHECK-NEXT:    str x30, [sp, #32] // 8-byte Folded Spill
+; CHECK-NEXT:    stp x20, x19, [sp, #48] // 16-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 64
+; CHECK-NEXT:    .cfi_offset w19, -8
+; CHECK-NEXT:    .cfi_offset w20, -16
+; CHECK-NEXT:    .cfi_offset w30, -32
+; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
+; CHECK-NEXT:    add x0, sp, #44
+; CHECK-NEXT:    add x1, sp, #40
+; CHECK-NEXT:    str q0, [sp] // 16-byte Folded Spill
+; CHECK-NEXT:    // kill: def $s0 killed $s0 killed $q0
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr q0, [sp] // 16-byte Folded Reload
+; CHECK-NEXT:    add x0, sp, #28
+; CHECK-NEXT:    add x1, sp, #24
+; CHECK-NEXT:    add x19, sp, #28
+; CHECK-NEXT:    add x20, sp, #24
+; CHECK-NEXT:    mov s0, v0.s[1]
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldp s1, s0, [sp, #40]
+; CHECK-NEXT:    ldr x30, [sp, #32] // 8-byte Folded Reload
+; CHECK-NEXT:    ld1 { v0.s }[1], [x19]
+; CHECK-NEXT:    ld1 { v1.s }[1], [x20]
+; CHECK-NEXT:    ldp x20, x19, [sp, #48] // 16-byte Folded Reload
+; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
+; CHECK-NEXT:    // kill: def $d1 killed $d1 killed $q1
+; CHECK-NEXT:    add sp, sp, #64
+; CHECK-NEXT:    ret
+  %result = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> %a)
+  ret { <2 x float>, <2 x float> } %result
+}
+
+define <2 x float> @test_sincos_v2f32_only_use_sin(<2 x float> %a) {
+; CHECK-LABEL: test_sincos_v2f32_only_use_sin:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #48
+; CHECK-NEXT:    stp x30, x19, [sp, #32] // 16-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 48
+; CHECK-NEXT:    .cfi_offset w19, -8
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
+; CHECK-NEXT:    add x0, sp, #28
+; CHECK-NEXT:    add x1, sp, #24
+; CHECK-NEXT:    str q0, [sp] // 16-byte Folded Spill
+; CHECK-NEXT:    // kill: def $s0 killed $s0 killed $q0
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr q0, [sp] // 16-byte Folded Reload
+; CHECK-NEXT:    add x0, sp, #20
+; CHECK-NEXT:    add x1, sp, #16
+; CHECK-NEXT:    add x19, sp, #20
+; CHECK-NEXT:    mov s0, v0.s[1]
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr s0, [sp, #28]
+; CHECK-NEXT:    ld1 { v0.s }[1], [x19]
+; CHECK-NEXT:    ldp x30, x19, [sp, #32] // 16-byte Folded Reload
+; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
+; CHECK-NEXT:    add sp, sp, #48
+; CHECK-NEXT:    ret
+  %result = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> %a)
+  %result.0 = extractvalue { <2 x float>, <2 x float> } %result, 0
+  ret <2 x float> %result.0
+}
+
+define <2 x float> @test_sincos_v2f32_only_use_cos(<2 x float> %a) {
+; CHECK-LABEL: test_sincos_v2f32_only_use_cos:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #48
+; CHECK-NEXT:    stp x30, x19, [sp, #32] // 16-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 48
+; CHECK-NEXT:    .cfi_offset w19, -8
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
+; CHECK-NEXT:    add x0, sp, #28
+; CHECK-NEXT:    add x1, sp, #24
+; CHECK-NEXT:    str q0, [sp] // 16-byte Folded Spill
+; CHECK-NEXT:    // kill: def $s0 killed $s0 killed $q0
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr q0, [sp] // 16-byte Folded Reload
+; CHECK-NEXT:    add x0, sp, #20
+; CHECK-NEXT:    add x1, sp, #16
+; CHECK-NEXT:    add x19, sp, #16
+; CHECK-NEXT:    mov s0, v0.s[1]
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr s0, [sp, #24]
+; CHECK-NEXT:    ld1 { v0.s }[1], [x19]
+; CHECK-NEXT:    ldp x30, x19, [sp, #32] // 16-byte Folded Reload
+; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
+; CHECK-NEXT:    add sp, sp, #48
+; CHECK-NEXT:    ret
+  %result = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> %a)
+  %result.1 = extractvalue { <2 x float>, <2 x float> } %result, 1
+  ret <2 x float> %result.1
+}
+
+define { double, double } @test_sincos_f64(double %a) {
+; CHECK-LABEL: test_sincos_f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #32
+; CHECK-NEXT:    str x30, [sp, #16] // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 32
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    add x0, sp, #24
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr d0, [sp, #24]
+; CHECK-NEXT:    ldr d1, [sp, #8]
+; CHECK-NEXT:    ldr x30, [sp, #16] // 8-byte Folded Reload
+; CHECK-NEXT:    add sp, sp, #32
+; CHECK-NEXT:    ret
+  %result = call { double, double } @llvm.sincos.f64(double %a)
+  ret { double, double } %result
+}
+
+define double @test_sincos_f64_only_use_sin(double %a) {
+; CHECK-LABEL: test_sincos_f64_only_use_sin:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #32
+; CHECK-NEXT:    str x30, [sp, #16] // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 32
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    add x0, sp, #24
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr d0, [sp, #24]
+; CHECK-NEXT:    ldr x30, [sp, #16] // 8-byte Folded Reload
+; CHECK-NEXT:    add sp, sp, #32
+; CHECK-NEXT:    ret
+  %result = call { double, double } @llvm.sincos.f64(double %a)
+  %result.0 = extractvalue { double, double } %result, 0
+  ret double %result.0
+}
+
+define double @test_sincos_f64_only_use_cos(double %a) {
+; CHECK-LABEL: test_sincos_f64_only_use_cos:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #32
+; CHECK-NEXT:    str x30, [sp, #16] // 8-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 32
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    add x0, sp, #24
+; CHECK-NEXT:    add x1, sp, #8
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr d0, [sp, #8]
+; CHECK-NEXT:    ldr x30, [sp, #16] // 8-byte Folded Reload
+; CHECK-NEXT:    add sp, sp, #32
+; CHECK-NEXT:    ret
+  %result = call { double, double } @llvm.sincos.f64(double %a)
+  %result.1 = extractvalue { double, double } %result, 1
+  ret double %result.1
+}
+
+define { <2 x double>, <2 x double> } @test_sincos_v2f64(<2 x double> %a) {
+; CHECK-LABEL: test_sincos_v2f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #80
+; CHECK-NEXT:    str x30, [sp, #48] // 8-byte Folded Spill
+; CHECK-NEXT:    stp x20, x19, [sp, #64] // 16-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 80
+; CHECK-NEXT:    .cfi_offset w19, -8
+; CHECK-NEXT:    .cfi_offset w20, -16
+; CHECK-NEXT:    .cfi_offset w30, -32
+; CHECK-NEXT:    add x0, sp, #56
+; CHECK-NEXT:    add x1, sp, #40
+; CHECK-NEXT:    str q0, [sp] // 16-byte Folded Spill
+; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr q0, [sp] // 16-byte Folded Reload
+; CHECK-NEXT:    add x0, sp, #32
+; CHECK-NEXT:    add x1, sp, #24
+; CHECK-NEXT:    add x19, sp, #32
+; CHECK-NEXT:    add x20, sp, #24
+; CHECK-NEXT:    mov d0, v0.d[1]
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr d0, [sp, #56]
+; CHECK-NEXT:    ldr d1, [sp, #40]
+; CHECK-NEXT:    ldr x30, [sp, #48] // 8-byte Folded Reload
+; CHECK-NEXT:    ld1 { v0.d }[1], [x19]
+; CHECK-NEXT:    ld1 { v1.d }[1], [x20]
+; CHECK-NEXT:    ldp x20, x19, [sp, #64] // 16-byte Folded Reload
+; CHECK-NEXT:    add sp, sp, #80
+; CHECK-NEXT:    ret
+  %result = call { <2 x double>, <2 x double> } @llvm.sincos.v2f64(<2 x double> %a)
+  ret { <2 x double>, <2 x double> } %result
+}
+
+define <2 x double> @test_sincos_v2f64_only_use_sin(<2 x double> %a) {
+; CHECK-LABEL: test_sincos_v2f64_only_use_sin:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #64
+; CHECK-NEXT:    stp x30, x19, [sp, #48] // 16-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 64
+; CHECK-NEXT:    .cfi_offset w19, -8
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    add x0, sp, #40
+; CHECK-NEXT:    add x1, sp, #32
+; CHECK-NEXT:    str q0, [sp] // 16-byte Folded Spill
+; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr q0, [sp] // 16-byte Folded Reload
+; CHECK-NEXT:    add x0, sp, #24
+; CHECK-NEXT:    add x1, sp, #16
+; CHECK-NEXT:    add x19, sp, #24
+; CHECK-NEXT:    mov d0, v0.d[1]
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr d0, [sp, #40]
+; CHECK-NEXT:    ld1 { v0.d }[1], [x19]
+; CHECK-NEXT:    ldp x30, x19, [sp, #48] // 16-byte Folded Reload
+; CHECK-NEXT:    add sp, sp, #64
+; CHECK-NEXT:    ret
+  %result = call { <2 x double>, <2 x double> } @llvm.sincos.v2f64(<2 x double> %a)
+  %result.0 = extractvalue { <2 x double>, <2 x double> } %result, 0
+  ret <2 x double> %result.0
+}
+
+define <2 x double> @test_sincos_v2f64_only_use_cos(<2 x double> %a) {
+; CHECK-LABEL: test_sincos_v2f64_only_use_cos:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    sub sp, sp, #64
+; CHECK-NEXT:    stp x30, x19, [sp, #48] // 16-byte Folded Spill
+; CHECK-NEXT:    .cfi_def_cfa_offset 64
+; CHECK-NEXT:    .cfi_offset w19, -8
+; CHECK-NEXT:    .cfi_offset w30, -16
+; CHECK-NEXT:    add x0, sp, #40
+; CHECK-NEXT:    add x1, sp, #32
+; CHECK-NEXT:    str q0, [sp] // 16-byte Folded Spill
+; CHECK-NEXT:    // kill: def $d0 killed $d0 killed $q0
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr q0, [sp] // 16-byte Folded Reload
+; CHECK-NEXT:    add x0, sp, #24
+; CHECK-NEXT:    add x1, sp, #16
+; CHECK-NEXT:    add x19, sp, #16
+; CHECK-NEXT:    mov d0, v0.d[1]
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldr d0, [sp, #32]
+; CHECK-NEXT:    ld1 { v0.d }[1], [x19]
+; CHECK-NEXT:    ldp x30, x19, [sp, #48] // 16-byte Folded Reload
+; CHECK-NEXT:    add sp, sp, #64
+; CHECK-NEXT:    ret
+  %result = call { <2 x double>, <2 x double> } @llvm.sincos.v2f64(<2 x double> %a)
+  %result.1 = extractvalue { <2 x double>, <2 x double> } %result, 1
+  ret <2 x double> %result.1
+}
diff --git a/llvm/test/CodeGen/ARM/llvm.sincos.ll b/llvm/test/CodeGen/ARM/llvm.sincos.ll
new file mode 100644
index 00000000000000..b08a642fd37178
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/llvm.sincos.ll
@@ -0,0 +1,464 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
+; RUN: llc -mtriple=thumbv7-gnu-linux < %s | FileCheck -check-prefixes=CHECK %s
+
+define { half, half } @test_sincos_f16(half %a) {
+; CHECK-LABEL: test_sincos_f16:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r4, lr}
+; CHECK-NEXT:    sub sp, #8
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr r0, [sp, #4]
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    mov r4, r0
+; CHECK-NEXT:    ldr r0, [sp]
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    mov r1, r0
+; CHECK-NEXT:    mov r0, r4
+; CHECK-NEXT:    add sp, #8
+; CHECK-NEXT:    pop {r4, pc}
+  %result = call { half, half } @llvm.sincos.f16(half %a)
+  ret { half, half } %result
+}
+
+define half @test_sincos_f16_only_use_sin(half %a) {
+; CHECK-LABEL: test_sincos_f16_only_use_sin:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    sub sp, #8
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr r0, [sp, #4]
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    add sp, #8
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { half, half } @llvm.sincos.f16(half %a)
+  %result.0 = extractvalue { half, half } %result, 0
+  ret half %result.0
+}
+
+define half @test_sincos_f16_only_use_cos(half %a) {
+; CHECK-LABEL: test_sincos_f16_only_use_cos:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    sub sp, #8
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr r0, [sp]
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    add sp, #8
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { half, half } @llvm.sincos.f16(half %a)
+  %result.1 = extractvalue { half, half } %result, 1
+  ret half %result.1
+}
+
+define { <2 x half>, <2 x half> } @test_sincos_v2f16(<2 x half> %a) {
+; CHECK-LABEL: test_sincos_v2f16:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r4, lr}
+; CHECK-NEXT:    vpush {d8}
+; CHECK-NEXT:    sub sp, #24
+; CHECK-NEXT:    mov r4, r0
+; CHECK-NEXT:    mov r0, r1
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #12
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    mov r0, r4
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr r0, [sp, #12]
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    ldr r1, [sp, #4]
+; CHECK-NEXT:    strh.w r0, [sp, #22]
+; CHECK-NEXT:    mov r0, r1
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    strh.w r0, [sp, #20]
+; CHECK-NEXT:    add r0, sp, #20
+; CHECK-NEXT:    vld1.32 {d8[0]}, [r0:32]
+; CHECK-NEXT:    ldr r0, [sp, #8]
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    ldr r1, [sp]
+; CHECK-NEXT:    strh.w r0, [sp, #18]
+; CHECK-NEXT:    mov r0, r1
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    strh.w r0, [sp, #16]
+; CHECK-NEXT:    add r0, sp, #16
+; CHECK-NEXT:    vmovl.u16 q9, d8
+; CHECK-NEXT:    vld1.32 {d16[0]}, [r0:32]
+; CHECK-NEXT:    vmovl.u16 q8, d16
+; CHECK-NEXT:    vmov.32 r0, d18[0]
+; CHECK-NEXT:    vmov.32 r1, d18[1]
+; CHECK-NEXT:    vmov.32 r2, d16[0]
+; CHECK-NEXT:    vmov.32 r3, d16[1]
+; CHECK-NEXT:    add sp, #24
+; CHECK-NEXT:    vpop {d8}
+; CHECK-NEXT:    pop {r4, pc}
+  %result = call { <2 x half>, <2 x half> } @llvm.sincos.v2f16(<2 x half> %a)
+  ret { <2 x half>, <2 x half> } %result
+}
+
+define <2 x half> @test_sincos_v2f16_only_use_sin(<2 x half> %a) {
+; CHECK-LABEL: test_sincos_v2f16_only_use_sin:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r4, lr}
+; CHECK-NEXT:    sub sp, #24
+; CHECK-NEXT:    mov r4, r0
+; CHECK-NEXT:    mov r0, r1
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #16
+; CHECK-NEXT:    add r2, sp, #12
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    mov r0, r4
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #8
+; CHECK-NEXT:    add r2, sp, #4
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr r0, [sp, #16]
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    ldr r1, [sp, #8]
+; CHECK-NEXT:    strh.w r0, [sp, #22]
+; CHECK-NEXT:    mov r0, r1
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    strh.w r0, [sp, #20]
+; CHECK-NEXT:    add r0, sp, #20
+; CHECK-NEXT:    vld1.32 {d16[0]}, [r0:32]
+; CHECK-NEXT:    vmovl.u16 q8, d16
+; CHECK-NEXT:    vmov.32 r0, d16[0]
+; CHECK-NEXT:    vmov.32 r1, d16[1]
+; CHECK-NEXT:    add sp, #24
+; CHECK-NEXT:    pop {r4, pc}
+  %result = call { <2 x half>, <2 x half> } @llvm.sincos.v2f16(<2 x half> %a)
+  %result.0 = extractvalue { <2 x half>, <2 x half> } %result, 0
+  ret <2 x half> %result.0
+}
+
+define <2 x half> @test_sincos_v2f16_only_use_cos(<2 x half> %a) {
+; CHECK-LABEL: test_sincos_v2f16_only_use_cos:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r4, lr}
+; CHECK-NEXT:    sub sp, #24
+; CHECK-NEXT:    mov r4, r0
+; CHECK-NEXT:    mov r0, r1
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #16
+; CHECK-NEXT:    add r2, sp, #12
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    mov r0, r4
+; CHECK-NEXT:    bl __gnu_h2f_ieee
+; CHECK-NEXT:    add r1, sp, #8
+; CHECK-NEXT:    add r2, sp, #4
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr r0, [sp, #12]
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    ldr r1, [sp, #4]
+; CHECK-NEXT:    strh.w r0, [sp, #22]
+; CHECK-NEXT:    mov r0, r1
+; CHECK-NEXT:    bl __gnu_f2h_ieee
+; CHECK-NEXT:    strh.w r0, [sp, #20]
+; CHECK-NEXT:    add r0, sp, #20
+; CHECK-NEXT:    vld1.32 {d16[0]}, [r0:32]
+; CHECK-NEXT:    vmovl.u16 q8, d16
+; CHECK-NEXT:    vmov.32 r0, d16[0]
+; CHECK-NEXT:    vmov.32 r1, d16[1]
+; CHECK-NEXT:    add sp, #24
+; CHECK-NEXT:    pop {r4, pc}
+  %result = call { <2 x half>, <2 x half> } @llvm.sincos.v2f16(<2 x half> %a)
+  %result.1 = extractvalue { <2 x half>, <2 x half> } %result, 1
+  ret <2 x half> %result.1
+}
+
+define { float, float } @test_sincos_f32(float %a) {
+; CHECK-LABEL: test_sincos_f32:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    sub sp, #8
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldrd r1, r0, [sp], #8
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { float, float } @llvm.sincos.f32(float %a)
+  ret { float, float } %result
+}
+
+define float @test_sincos_f32_only_use_sin(float %a) {
+; CHECK-LABEL: test_sincos_f32_only_use_sin:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    sub sp, #8
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr r0, [sp, #4]
+; CHECK-NEXT:    add sp, #8
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { float, float } @llvm.sincos.f32(float %a)
+  %result.0 = extractvalue { float, float } %result, 0
+  ret float %result.0
+}
+
+define float @test_sincos_f32_only_use_cos(float %a) {
+; CHECK-LABEL: test_sincos_f32_only_use_cos:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    sub sp, #8
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    ldr r0, [sp], #8
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { float, float } @llvm.sincos.f32(float %a)
+  %result.1 = extractvalue { float, float } %result, 1
+  ret float %result.1
+}
+
+define { <2 x float>, <2 x float> } @test_sincos_v2f32(<2 x float> %a) {
+; CHECK-LABEL: test_sincos_v2f32:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    vpush {d8}
+; CHECK-NEXT:    sub sp, #16
+; CHECK-NEXT:    vmov d8, r0, r1
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    vmov r0, s17
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    vmov r0, s16
+; CHECK-NEXT:    add r1, sp, #12
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    vldr s1, [sp, #4]
+; CHECK-NEXT:    vldr s3, [sp]
+; CHECK-NEXT:    vldr s0, [sp, #12]
+; CHECK-NEXT:    vldr s2, [sp, #8]
+; CHECK-NEXT:    vmov r0, r1, d0
+; CHECK-NEXT:    vmov r2, r3, d1
+; CHECK-NEXT:    add sp, #16
+; CHECK-NEXT:    vpop {d8}
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> %a)
+  ret { <2 x float>, <2 x float> } %result
+}
+
+define <2 x float> @test_sincos_v2f32_only_use_sin(<2 x float> %a) {
+; CHECK-LABEL: test_sincos_v2f32_only_use_sin:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    vpush {d8}
+; CHECK-NEXT:    sub sp, #16
+; CHECK-NEXT:    vmov d8, r0, r1
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    vmov r0, s17
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    vmov r0, s16
+; CHECK-NEXT:    add r1, sp, #12
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    vldr s1, [sp, #4]
+; CHECK-NEXT:    vldr s0, [sp, #12]
+; CHECK-NEXT:    vmov r0, r1, d0
+; CHECK-NEXT:    add sp, #16
+; CHECK-NEXT:    vpop {d8}
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> %a)
+  %result.0 = extractvalue { <2 x float>, <2 x float> } %result, 0
+  ret <2 x float> %result.0
+}
+
+define <2 x float> @test_sincos_v2f32_only_use_cos(<2 x float> %a) {
+; CHECK-LABEL: test_sincos_v2f32_only_use_cos:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    vpush {d8}
+; CHECK-NEXT:    sub sp, #16
+; CHECK-NEXT:    vmov d8, r0, r1
+; CHECK-NEXT:    add r1, sp, #4
+; CHECK-NEXT:    mov r2, sp
+; CHECK-NEXT:    vmov r0, s17
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    vmov r0, s16
+; CHECK-NEXT:    add r1, sp, #12
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    bl sincosf
+; CHECK-NEXT:    vldr s1, [sp]
+; CHECK-NEXT:    vldr s0, [sp, #8]
+; CHECK-NEXT:    vmov r0, r1, d0
+; CHECK-NEXT:    add sp, #16
+; CHECK-NEXT:    vpop {d8}
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { <2 x float>, <2 x float> } @llvm.sincos.v2f32(<2 x float> %a)
+  %result.1 = extractvalue { <2 x float>, <2 x float> } %result, 1
+  ret <2 x float> %result.1
+}
+
+define { double, double } @test_sincos_f64(double %a) {
+; CHECK-LABEL: test_sincos_f64:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    sub sp, #16
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    mov r3, sp
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldrd r0, r1, [sp, #8]
+; CHECK-NEXT:    ldrd r2, r3, [sp], #16
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { double, double } @llvm.sincos.f64(double %a)
+  ret { double, double } %result
+}
+
+define double @test_sincos_f64_only_use_sin(double %a) {
+; CHECK-LABEL: test_sincos_f64_only_use_sin:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    sub sp, #16
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    mov r3, sp
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldrd r0, r1, [sp, #8]
+; CHECK-NEXT:    add sp, #16
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { double, double } @llvm.sincos.f64(double %a)
+  %result.0 = extractvalue { double, double } %result, 0
+  ret double %result.0
+}
+
+define double @test_sincos_f64_only_use_cos(double %a) {
+; CHECK-LABEL: test_sincos_f64_only_use_cos:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r7, lr}
+; CHECK-NEXT:    sub sp, #16
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    mov r3, sp
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldrd r0, r1, [sp], #16
+; CHECK-NEXT:    pop {r7, pc}
+  %result = call { double, double } @llvm.sincos.f64(double %a)
+  %result.1 = extractvalue { double, double } %result, 1
+  ret double %result.1
+}
+
+define { <2 x double>, <2 x double> } @test_sincos_v2f64(<2 x double> %a) {
+; CHECK-LABEL: test_sincos_v2f64:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r4, lr}
+; CHECK-NEXT:    sub sp, #32
+; CHECK-NEXT:    mov r1, r3
+; CHECK-NEXT:    mov r12, r2
+; CHECK-NEXT:    add r2, sp, #24
+; CHECK-NEXT:    add r3, sp, #16
+; CHECK-NEXT:    mov r4, r0
+; CHECK-NEXT:    mov r0, r12
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    ldrd r0, r1, [sp, #40]
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    mov r3, sp
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    vldr d19, [sp, #8]
+; CHECK-NEXT:    vldr d18, [sp, #24]
+; CHECK-NEXT:    vldr d17, [sp]
+; CHECK-NEXT:    vldr d16, [sp, #16]
+; CHECK-NEXT:    vst1.64 {d18, d19}, [r4]!
+; CHECK-NEXT:    vst1.64 {d16, d17}, [r4]
+; CHECK-NEXT:    add sp, #32
+; CHECK-NEXT:    pop {r4, pc}
+  %result = call { <2 x double>, <2 x double> } @llvm.sincos.v2f64(<2 x double> %a)
+  ret { <2 x double>, <2 x double> } %result
+}
+
+define <2 x double> @test_sincos_v2f64_only_use_sin(<2 x double> %a) {
+; CHECK-LABEL: test_sincos_v2f64_only_use_sin:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r4, r5, r6, r7, lr}
+; CHECK-NEXT:    sub sp, #36
+; CHECK-NEXT:    mov r6, r3
+; CHECK-NEXT:    mov r4, r2
+; CHECK-NEXT:    add r2, sp, #24
+; CHECK-NEXT:    add r3, sp, #16
+; CHECK-NEXT:    mov r7, r1
+; CHECK-NEXT:    mov r5, r0
+; CHECK-NEXT:    mov r0, r4
+; CHECK-NEXT:    mov r1, r6
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    mov r3, sp
+; CHECK-NEXT:    mov r0, r5
+; CHECK-NEXT:    mov r1, r7
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    vldr d16, [sp, #24]
+; CHECK-NEXT:    ldrd r0, r1, [sp, #8]
+; CHECK-NEXT:    vmov r2, r3, d16
+; CHECK-NEXT:    add sp, #36
+; CHECK-NEXT:    pop {r4, r5, r6, r7, pc}
+  %result = call { <2 x double>, <2 x double> } @llvm.sincos.v2f64(<2 x double> %a)
+  %result.0 = extractvalue { <2 x double>, <2 x double> } %result, 0
+  ret <2 x double> %result.0
+}
+
+define <2 x double> @test_sincos_v2f64_only_use_cos(<2 x double> %a) {
+; CHECK-LABEL: test_sincos_v2f64_only_use_cos:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r4, r5, r6, r7, lr}
+; CHECK-NEXT:    sub sp, #36
+; CHECK-NEXT:    mov r6, r3
+; CHECK-NEXT:    mov r4, r2
+; CHECK-NEXT:    add r2, sp, #24
+; CHECK-NEXT:    add r3, sp, #16
+; CHECK-NEXT:    mov r7, r1
+; CHECK-NEXT:    mov r5, r0
+; CHECK-NEXT:    mov r0, r4
+; CHECK-NEXT:    mov r1, r6
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    add r2, sp, #8
+; CHECK-NEXT:    mov r3, sp
+; CHECK-NEXT:    mov r0, r5
+; CHECK-NEXT:    mov r1, r7
+; CHECK-NEXT:    bl sincos
+; CHECK-NEXT:    vldr d16, [sp, #16]
+; CHECK-NEXT:    vmov r2, r3, d16
+; CHECK-NEXT:    ldrd r0, r1, [sp], #36
+; CHECK-NEXT:    pop {r4, r5, r6, r7, pc}
+  %result = call { <2 x double>, <2 x double> } @llvm.sincos.v2f64(<2 x double> %a)
+  %result.1 = extractvalue { <2 x double>, <2 x double> } %result, 1
+  ret <2 x double> %result.1
+}
+
+define { fp128, fp128 } @test_sincos_f128(fp128 %a) {
+; CHECK-LABEL: test_sincos_f128:
+; CHECK:       @ %bb.0:
+; CHECK-NEXT:    push {r4, r5, r7, lr}
+; CHECK-NEXT:    sub sp, #40
+; CHECK-NEXT:    mov r12, r3
+; CHECK-NEXT:    ldr r3, [sp, #56]
+; CHECK-NEXT:    add.w lr, sp, #8
+; CHECK-NEXT:    mov r4, r0
+; CHECK-NEXT:    add r0, sp, #24
+; CHECK-NEXT:    strd r0, lr, [sp]
+; CHECK-NEXT:    mov r0, r1
+; CHECK-NEXT:    mov r1, r2
+; CHECK-NEXT:    mov r2, r12
+; CHECK-NEXT:    bl sincosl
+; CHECK-NEXT:    ldrd r2, r3, [sp, #16]
+; CHECK-NEXT:    ldrd r12, r1, [sp, #8]
+; CHECK-NEXT:    str r3, [r4, #28]
+; CHECK-NEXT:    ldrd r3, r5, [sp, #32]
+; CHECK-NEXT:    ldrd lr, r0, [sp, #24]
+; CHECK-NEXT:    strd r1, r2, [r4, #20]
+; CHECK-NEXT:    add.w r1, r4, #8
+; CHECK-NEXT:    stm.w r1, {r3, r5, r12}
+; CHECK-NEXT:    strd lr, r0, [r4]
+; CHECK-NEXT:    add sp, #40
+; CHECK-NEXT:    pop {r4, r5, r7, pc}
+  %result = call { fp128, fp128 } @llvm.sincos.f16(fp128 %a)
+  ret { fp128, fp128 } %result
+}



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