diff --git a/lib/Target/ARM/ARMFrameInfo.cpp b/lib/Target/ARM/ARMFrameInfo.cpp index d4aa3eb504a..7059c1b507a 100644 --- a/lib/Target/ARM/ARMFrameInfo.cpp +++ b/lib/Target/ARM/ARMFrameInfo.cpp @@ -529,10 +529,11 @@ void ARMFrameInfo::emitPushInst(MachineBasicBlock &MBB, if (isKill) MBB.addLiveIn(Reg); - if (NoGap && LastReg) { - if (LastReg != Reg-1) - break; - } + // If NoGap is true, pop consecutive registers and then leave the rest + // for other instructions. e.g. + // vpush {d8, d10, d11} -> vpush {d8}, vpop {d10, d11} + if (NoGap && LastReg && LastReg != Reg-1) + break; LastReg = Reg; Regs.push_back(std::make_pair(Reg, isKill)); } @@ -574,10 +575,12 @@ void ARMFrameInfo::emitPopInst(MachineBasicBlock &MBB, DeleteRet = true; } - if (NoGap && LastReg) { - if (LastReg != Reg-1) - break; - } + // If NoGap is true, pop consecutive registers and then leave the rest + // for other instructions. e.g. + // vpop {d8, d10, d11} -> vpop {d8}, vpop {d10, d11} + if (NoGap && LastReg && LastReg != Reg-1) + break; + LastReg = Reg; Regs.push_back(Reg); }