gistfile1.txt

    TlsReg = X86::GS;

    BuildMI(checkMBB, DL, TII.get(X86::LEA32r), ScratchReg).addReg(X86::ESP)
      .addImm(1).addReg(0).addImm(-StackSize).addReg(0);

    if (ST->isTargetLinux()) {
      TlsOffset = 0x30;

      BuildMI(checkMBB, DL, TII.get(X86::CMP32rm)).addReg(ScratchReg)
        .addReg(0).addImm(0).addReg(0).addImm(TlsOffset).addReg(TlsReg);
    } else if (ST->isTargetDarwin()) {
      TlsOffset = 0x48 + 90*4;

      unsigned ScratchReg2 = getScratchRegister(Is64Bit, MF, false);
      BuildMI(checkMBB, DL, TII.get(X86::MOV32ri))
        .addReg(ScratchReg2).addImm(TlsOffset);
      BuildMI(checkMBB, DLL, TII.get(X86::CMP32rm))
        .addReg(ScratchReg)
        .addReg(ScratchReg2).addImm(1).addReg(0)
        .addImm(0)
        .addReg(TlsReg);
    }