diff options
Diffstat (limited to 'lib/Target/PowerPC/PPCISelLowering.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 1402718f71..68f1bc6eae 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -583,6 +583,11 @@ const char *PPCTargetLowering::getTargetNodeName(unsigned Opcode) const { case PPCISD::ADDIS_TLSGD_HA: return "PPCISD::ADDIS_TLSGD_HA"; case PPCISD::ADDI_TLSGD_L: return "PPCISD::ADDI_TLSGD_L"; case PPCISD::GET_TLS_ADDR: return "PPCISD::GET_TLS_ADDR"; + case PPCISD::ADDIS_TLSLD_HA: return "PPCISD::ADDIS_TLSLD_HA"; + case PPCISD::ADDI_TLSLD_L: return "PPCISD::ADDI_TLSLD_L"; + case PPCISD::GET_TLSLD_ADDR: return "PPCISD::GET_TLSLD_ADDR"; + case PPCISD::ADDIS_DTPREL_HA: return "PPCISD::ADDIS_DTPREL_HA"; + case PPCISD::ADDI_DTPREL_L: return "PPCISD::ADDI_DTPREL_L"; } } @@ -1373,14 +1378,39 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op, SDValue ParmReg = DAG.getRegister(PPC::X3, MVT::i64); SDValue TLSAddr = DAG.getNode(PPCISD::GET_TLS_ADDR, dl, PtrVT, ParmReg, TGA); - // The call to GET_TLS_ADDR really is in X3 already, but - // some hacks are needed here to tie everything together. - // The extra copies dissolve during subsequent transforms. + // The return value from GET_TLS_ADDR really is in X3 already, but + // some hacks are needed here to tie everything together. The extra + // copies dissolve during subsequent transforms. Chain = DAG.getCopyToReg(Chain, dl, PPC::X3, TLSAddr); return DAG.getCopyFromReg(Chain, dl, PPC::X3, PtrVT); } - llvm_unreachable("local-dynamic TLS mode is not yet supported"); + if (Model == TLSModel::LocalDynamic) { + SDValue TGA = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, 0); + SDValue GOTReg = DAG.getRegister(PPC::X2, MVT::i64); + SDValue GOTEntryHi = DAG.getNode(PPCISD::ADDIS_TLSLD_HA, dl, PtrVT, + GOTReg, TGA); + SDValue GOTEntry = DAG.getNode(PPCISD::ADDI_TLSLD_L, dl, PtrVT, + GOTEntryHi, TGA); + + // We need a chain node, and don't have one handy. The underlying + // call has no side effects, so using the function entry node + // suffices. + SDValue Chain = DAG.getEntryNode(); + Chain = DAG.getCopyToReg(Chain, dl, PPC::X3, GOTEntry); + SDValue ParmReg = DAG.getRegister(PPC::X3, MVT::i64); + SDValue TLSAddr = DAG.getNode(PPCISD::GET_TLSLD_ADDR, dl, + PtrVT, ParmReg, TGA); + // The return value from GET_TLSLD_ADDR really is in X3 already, but + // some hacks are needed here to tie everything together. The extra + // copies dissolve during subsequent transforms. + Chain = DAG.getCopyToReg(Chain, dl, PPC::X3, TLSAddr); + SDValue DtvOffsetHi = DAG.getNode(PPCISD::ADDIS_DTPREL_HA, dl, PtrVT, + ParmReg, TGA, Chain); + return DAG.getNode(PPCISD::ADDI_DTPREL_L, dl, PtrVT, DtvOffsetHi, TGA); + } + + llvm_unreachable("Unknown TLS model!"); } SDValue PPCTargetLowering::LowerGlobalAddress(SDValue Op, |