diff options
Diffstat (limited to 'lib/Target/ARM/ARMExpandPseudoInsts.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMExpandPseudoInsts.cpp | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/lib/Target/ARM/ARMExpandPseudoInsts.cpp b/lib/Target/ARM/ARMExpandPseudoInsts.cpp index 95fcc8dcb453c..baa4e0330cf44 100644 --- a/lib/Target/ARM/ARMExpandPseudoInsts.cpp +++ b/lib/Target/ARM/ARMExpandPseudoInsts.cpp @@ -1225,16 +1225,36 @@ bool ARMExpandPseudo::ExpandMI(MachineBasicBlock &MBB, } case ARM::tTPsoft: case ARM::TPsoft: { + const bool Thumb = Opcode == ARM::tTPsoft; + MachineInstrBuilder MIB; - if (Opcode == ARM::tTPsoft) + if (STI->genLongCalls()) { + MachineFunction *MF = MBB.getParent(); + MachineConstantPool *MCP = MF->getConstantPool(); + unsigned PCLabelID = AFI->createPICLabelUId(); + MachineConstantPoolValue *CPV = + ARMConstantPoolSymbol::Create(MF->getFunction()->getContext(), + "__aeabi_read_tp", PCLabelID, 0); + unsigned Reg = MI.getOperand(0).getReg(); MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), - TII->get( ARM::tBL)) - .addImm((unsigned)ARMCC::AL).addReg(0) - .addExternalSymbol("__aeabi_read_tp", 0); - else + TII->get(Thumb ? ARM::tLDRpci : ARM::LDRi12), Reg) + .addConstantPoolIndex(MCP->getConstantPoolIndex(CPV, 4)); + if (!Thumb) + MIB.addImm(0); + MIB.addImm(static_cast<unsigned>(ARMCC::AL)).addReg(0); + MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), - TII->get( ARM::BL)) - .addExternalSymbol("__aeabi_read_tp", 0); + TII->get(Thumb ? ARM::tBLXr : ARM::BLX)); + if (Thumb) + MIB.addImm(static_cast<unsigned>(ARMCC::AL)).addReg(0); + MIB.addReg(Reg, RegState::Kill); + } else { + MIB = BuildMI(MBB, MBBI, MI.getDebugLoc(), + TII->get(Thumb ? ARM::tBL : ARM::BL)); + if (Thumb) + MIB.addImm(static_cast<unsigned>(ARMCC::AL)).addReg(0); + MIB.addExternalSymbol("__aeabi_read_tp", 0); + } MIB->setMemRefs(MI.memoperands_begin(), MI.memoperands_end()); TransferImpOps(MI, MIB, MIB); |