diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 28 | ||||
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.h | 1 |
2 files changed, 27 insertions, 2 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 8f410b702c5..925b4693fd5 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -2485,6 +2485,23 @@ SDValue ARMTargetLowering::LowerGlobalAddressDarwin(SDValue Op, return Result; } +SDValue ARMTargetLowering::LowerGlobalAddressWindows(SDValue Op, + SelectionDAG &DAG) const { + assert(Subtarget->isTargetWindows() && "non-Windows COFF is not supported"); + assert(Subtarget->useMovt() && "Windows on ARM expects to use movw/movt"); + + const GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal(); + EVT PtrVT = getPointerTy(); + SDLoc DL(Op); + + ++NumMovwMovt; + + // FIXME: Once remat is capable of dealing with instructions with register + // operands, expand this into two nodes. + return DAG.getNode(ARMISD::Wrapper, DL, PtrVT, + DAG.getTargetGlobalAddress(GV, DL, PtrVT)); +} + SDValue ARMTargetLowering::LowerGLOBAL_OFFSET_TABLE(SDValue Op, SelectionDAG &DAG) const { assert(Subtarget->isTargetELF() && @@ -6050,8 +6067,15 @@ SDValue ARMTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { case ISD::ConstantPool: return LowerConstantPool(Op, DAG); case ISD::BlockAddress: return LowerBlockAddress(Op, DAG); case ISD::GlobalAddress: - return Subtarget->isTargetMachO() ? LowerGlobalAddressDarwin(Op, DAG) : - LowerGlobalAddressELF(Op, DAG); + switch (Subtarget->getTargetTriple().getObjectFormat()) { + default: llvm_unreachable("unknown object format"); + case Triple::COFF: + return LowerGlobalAddressWindows(Op, DAG); + case Triple::ELF: + return LowerGlobalAddressELF(Op, DAG); + case Triple::MachO: + return LowerGlobalAddressDarwin(Op, DAG); + } case ISD::GlobalTLSAddress: return LowerGlobalTLSAddress(Op, DAG); case ISD::SELECT: return LowerSELECT(Op, DAG); case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG); diff --git a/llvm/lib/Target/ARM/ARMISelLowering.h b/llvm/lib/Target/ARM/ARMISelLowering.h index 7f28a251f52..cff7a9799a8 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.h +++ b/llvm/lib/Target/ARM/ARMISelLowering.h @@ -437,6 +437,7 @@ namespace llvm { SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const; SDValue LowerGlobalAddressDarwin(SDValue Op, SelectionDAG &DAG) const; SDValue LowerGlobalAddressELF(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerGlobalAddressWindows(SDValue Op, SelectionDAG &DAG) const; SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const; SDValue LowerToTLSGeneralDynamicModel(GlobalAddressSDNode *GA, SelectionDAG &DAG) const; |
