diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86FastISel.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86FastISel.cpp | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86FastISel.cpp b/llvm/lib/Target/X86/X86FastISel.cpp index f42465d14ce..16e57a0f6f5 100644 --- a/llvm/lib/Target/X86/X86FastISel.cpp +++ b/llvm/lib/Target/X86/X86FastISel.cpp @@ -3163,7 +3163,8 @@ unsigned X86FastISel::X86MaterializeFP(const ConstantFP *CFP, MVT VT) { return TargetMaterializeFloatZero(CFP); // Can't handle alternate code models yet. - if (TM.getCodeModel() != CodeModel::Small) + CodeModel::Model CM = TM.getCodeModel(); + if (CM != CodeModel::Small && CM != CodeModel::Large) return 0; // Get opcode and regclass of the output for the given load instruction. @@ -3219,6 +3220,21 @@ unsigned X86FastISel::X86MaterializeFP(const ConstantFP *CFP, MVT VT) { unsigned CPI = MCP.getConstantPoolIndex(CFP, Align); unsigned ResultReg = createResultReg(RC); + if (CM == CodeModel::Large) { + unsigned AddrReg = createResultReg(&X86::GR64RegClass); + BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(X86::MOV64ri), + AddrReg) + .addConstantPoolIndex(CPI, 0, OpFlag); + MachineInstrBuilder MIB = BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, + TII.get(Opc), ResultReg); + addDirectMem(MIB, AddrReg); + MachineMemOperand *MMO = FuncInfo.MF->getMachineMemOperand( + MachinePointerInfo::getConstantPool(), MachineMemOperand::MOLoad, + TM.getSubtargetImpl()->getDataLayout()->getPointerSize(), Align); + MIB->addMemOperand(*FuncInfo.MF, MMO); + return ResultReg; + } + addConstantPoolReference(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc), ResultReg), CPI, PICBase, OpFlag); |
