diff options
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZISelLowering.cpp | 26 | ||||
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZISelLowering.h | 1 | ||||
| -rw-r--r-- | llvm/test/CodeGen/SystemZ/builtins.ll | 14 |
3 files changed, 33 insertions, 8 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp index 31011063247..68c5e55b569 100644 --- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp +++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp @@ -2533,14 +2533,9 @@ SDValue SystemZTargetLowering::lowerTLSGetOffset(GlobalAddressSDNode *Node, return DAG.getCopyFromReg(Chain, DL, SystemZ::R2D, PtrVT, Glue); } -SDValue SystemZTargetLowering::lowerGlobalTLSAddress(GlobalAddressSDNode *Node, - SelectionDAG &DAG) const { - if (DAG.getTarget().Options.EmulatedTLS) - return LowerToTLSEmulatedModel(Node, DAG); - SDLoc DL(Node); - const GlobalValue *GV = Node->getGlobal(); +SDValue SystemZTargetLowering::lowerThreadPointer(const SDLoc &DL, + SelectionDAG &DAG) const { EVT PtrVT = getPointerTy(DAG.getDataLayout()); - TLSModel::Model model = DAG.getTarget().getTLSModel(GV); // The high part of the thread pointer is in access register 0. SDValue TPHi = DAG.getNode(SystemZISD::EXTRACT_ACCESS, DL, MVT::i32, @@ -2555,7 +2550,19 @@ SDValue SystemZTargetLowering::lowerGlobalTLSAddress(GlobalAddressSDNode *Node, // Merge them into a single 64-bit address. SDValue TPHiShifted = DAG.getNode(ISD::SHL, DL, PtrVT, TPHi, DAG.getConstant(32, DL, PtrVT)); - SDValue TP = DAG.getNode(ISD::OR, DL, PtrVT, TPHiShifted, TPLo); + return DAG.getNode(ISD::OR, DL, PtrVT, TPHiShifted, TPLo); +} + +SDValue SystemZTargetLowering::lowerGlobalTLSAddress(GlobalAddressSDNode *Node, + SelectionDAG &DAG) const { + if (DAG.getTarget().Options.EmulatedTLS) + return LowerToTLSEmulatedModel(Node, DAG); + SDLoc DL(Node); + const GlobalValue *GV = Node->getGlobal(); + EVT PtrVT = getPointerTy(DAG.getDataLayout()); + TLSModel::Model model = DAG.getTarget().getTLSModel(GV); + + SDValue TP = lowerThreadPointer(DL, DAG); // Get the offset of GA from the thread pointer, based on the TLS model. SDValue Offset; @@ -3396,6 +3403,9 @@ SystemZTargetLowering::lowerINTRINSIC_WO_CHAIN(SDValue Op, unsigned Id = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue(); switch (Id) { + case Intrinsic::thread_pointer: + return lowerThreadPointer(SDLoc(Op), DAG); + case Intrinsic::s390_vpdi: return DAG.getNode(SystemZISD::PERMUTE_DWORDS, SDLoc(Op), Op.getValueType(), Op.getOperand(1), Op.getOperand(2), Op.getOperand(3)); diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.h b/llvm/lib/Target/SystemZ/SystemZISelLowering.h index e6e3e1701ae..02dd7afa887 100644 --- a/llvm/lib/Target/SystemZ/SystemZISelLowering.h +++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.h @@ -464,6 +464,7 @@ private: SDValue lowerTLSGetOffset(GlobalAddressSDNode *Node, SelectionDAG &DAG, unsigned Opcode, SDValue GOTOffset) const; + SDValue lowerThreadPointer(const SDLoc &DL, SelectionDAG &DAG) const; SDValue lowerGlobalTLSAddress(GlobalAddressSDNode *Node, SelectionDAG &DAG) const; SDValue lowerBlockAddress(BlockAddressSDNode *Node, diff --git a/llvm/test/CodeGen/SystemZ/builtins.ll b/llvm/test/CodeGen/SystemZ/builtins.ll new file mode 100644 index 00000000000..86546c08488 --- /dev/null +++ b/llvm/test/CodeGen/SystemZ/builtins.ll @@ -0,0 +1,14 @@ +; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s + +; Function Attrs: nounwind readnone +declare i8* @llvm.thread.pointer() #1 + +define i8* @thread_pointer() { +; CHECK: thread_pointer: +; CHECK: ear [[REG1:%r[0-5]]], %a0 +; CHECK: sllg %r2, [[REG1]], 32 +; CHECK: ear %r2, %a1 +; CHECK: br %r14 + %1 = tail call i8* @llvm.thread.pointer() + ret i8* %1 +} |
