diff options
Diffstat (limited to 'lib/Target/PowerPC/PPCISelLowering.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 0d026c80a3..1168171b23 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -578,6 +578,8 @@ const char *PPCTargetLowering::getTargetNodeName(unsigned Opcode) const { case PPCISD::ADDIS_TOC_HA: return "PPCISD::ADDIS_TOC_HA"; case PPCISD::LD_TOC_L: return "PPCISD::LD_TOC_L"; case PPCISD::ADDI_TOC_L: return "PPCISD::ADDI_TOC_L"; + case PPCISD::LD_GOT_TPREL: return "PPCISD::LD_GOT_TPREL"; + case PPCISD::ADD_TLS: return "PPCISD::ADD_TLS"; } } @@ -1324,19 +1326,34 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op, EVT PtrVT = getPointerTy(); bool is64bit = PPCSubTarget.isPPC64(); - TLSModel::Model model = getTargetMachine().getTLSModel(GV); + TLSModel::Model Model = getTargetMachine().getTLSModel(GV); + + if (Model == TLSModel::LocalExec) { + SDValue TGAHi = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, + PPCII::MO_TPREL16_HA); + SDValue TGALo = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, + PPCII::MO_TPREL16_LO); + SDValue TLSReg = DAG.getRegister(is64bit ? PPC::X13 : PPC::R2, + is64bit ? MVT::i64 : MVT::i32); + SDValue Hi = DAG.getNode(PPCISD::Hi, dl, PtrVT, TGAHi, TLSReg); + return DAG.getNode(PPCISD::Lo, dl, PtrVT, TGALo, Hi); + } + + if (!is64bit) + llvm_unreachable("only local-exec is currently supported for ppc32"); - SDValue TGAHi = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, - PPCII::MO_TPREL16_HA); - SDValue TGALo = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, - PPCII::MO_TPREL16_LO); + if (Model != TLSModel::InitialExec) + llvm_unreachable("only local-exec and initial-exec TLS modes supported"); - if (model != TLSModel::LocalExec) - llvm_unreachable("only local-exec TLS mode supported"); - SDValue TLSReg = DAG.getRegister(is64bit ? PPC::X13 : PPC::R2, + SDValue GOTOffset = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, + PPCII::MO_GOT_TPREL16_DS); + SDValue TPReg = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, + PPCII::MO_TLS); + SDValue GOTReg = DAG.getRegister(is64bit ? PPC::X2 : PPC::R2, is64bit ? MVT::i64 : MVT::i32); - SDValue Hi = DAG.getNode(PPCISD::Hi, dl, PtrVT, TGAHi, TLSReg); - return DAG.getNode(PPCISD::Lo, dl, PtrVT, TGALo, Hi); + SDValue TPOffset = DAG.getNode(PPCISD::LD_GOT_TPREL, dl, PtrVT, + GOTOffset, GOTReg); + return DAG.getNode(PPCISD::ADD_TLS, dl, PtrVT, TPOffset, TPReg); } SDValue PPCTargetLowering::LowerGlobalAddress(SDValue Op, |