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[Hexagon] Reset spill alignment when variable-sized objects are present

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302029 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Krzysztof Parzyszek 2017-05-03 15:23:53 +00:00
parent 0766da9258
commit 7812bede76
1 changed files with 30 additions and 0 deletions

30
lib/Target/Hexagon/HexagonInstrInfo.cpp

@ -869,6 +869,9 @@ void HexagonInstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
MachineFrameInfo &MFI = MF.getFrameInfo();
unsigned Align = MFI.getObjectAlignment(FI);
unsigned KillFlag = getKillRegState(isKill);
bool HasAlloca = MFI.hasVarSizedObjects();
const auto &HST = MF.getSubtarget<HexagonSubtarget>();
const HexagonFrameLowering &HFI = *HST.getFrameLowering();
MachineMemOperand *MMO = MF.getMachineMemOperand(
MachinePointerInfo::getFixedStack(MF, FI), MachineMemOperand::MOStore,
@ -899,24 +902,36 @@ void HexagonInstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
.addFrameIndex(FI).addImm(0)
.addReg(SrcReg, KillFlag).addMemOperand(MMO);
} else if (Hexagon::VectorRegs128BRegClass.hasSubClassEq(RC)) {
// If there are variable-sized objects, spills will not be aligned.
if (HasAlloca)
Align = HFI.getStackAlignment();
unsigned Opc = Align < 128 ? Hexagon::V6_vS32Ub_ai_128B
: Hexagon::V6_vS32b_ai_128B;
BuildMI(MBB, I, DL, get(Opc))
.addFrameIndex(FI).addImm(0)
.addReg(SrcReg, KillFlag).addMemOperand(MMO);
} else if (Hexagon::VectorRegsRegClass.hasSubClassEq(RC)) {
// If there are variable-sized objects, spills will not be aligned.
if (HasAlloca)
Align = HFI.getStackAlignment();
unsigned Opc = Align < 64 ? Hexagon::V6_vS32Ub_ai
: Hexagon::V6_vS32b_ai;
BuildMI(MBB, I, DL, get(Opc))
.addFrameIndex(FI).addImm(0)
.addReg(SrcReg, KillFlag).addMemOperand(MMO);
} else if (Hexagon::VecDblRegsRegClass.hasSubClassEq(RC)) {
// If there are variable-sized objects, spills will not be aligned.
if (HasAlloca)
Align = HFI.getStackAlignment();
unsigned Opc = Align < 64 ? Hexagon::PS_vstorerwu_ai
: Hexagon::PS_vstorerw_ai;
BuildMI(MBB, I, DL, get(Opc))
.addFrameIndex(FI).addImm(0)
.addReg(SrcReg, KillFlag).addMemOperand(MMO);
} else if (Hexagon::VecDblRegs128BRegClass.hasSubClassEq(RC)) {
// If there are variable-sized objects, spills will not be aligned.
if (HasAlloca)
Align = HFI.getStackAlignment();
unsigned Opc = Align < 128 ? Hexagon::PS_vstorerwu_ai_128B
: Hexagon::PS_vstorerw_ai_128B;
BuildMI(MBB, I, DL, get(Opc))
@ -935,6 +950,9 @@ void HexagonInstrInfo::loadRegFromStackSlot(
MachineFunction &MF = *MBB.getParent();
MachineFrameInfo &MFI = MF.getFrameInfo();
unsigned Align = MFI.getObjectAlignment(FI);
bool HasAlloca = MFI.hasVarSizedObjects();
const auto &HST = MF.getSubtarget<HexagonSubtarget>();
const HexagonFrameLowering &HFI = *HST.getFrameLowering();
MachineMemOperand *MMO = MF.getMachineMemOperand(
MachinePointerInfo::getFixedStack(MF, FI), MachineMemOperand::MOLoad,
@ -959,21 +977,33 @@ void HexagonInstrInfo::loadRegFromStackSlot(
BuildMI(MBB, I, DL, get(Hexagon::PS_vloadrq_ai), DestReg)
.addFrameIndex(FI).addImm(0).addMemOperand(MMO);
} else if (Hexagon::VecDblRegs128BRegClass.hasSubClassEq(RC)) {
// If there are variable-sized objects, spills will not be aligned.
if (HasAlloca)
Align = HFI.getStackAlignment();
unsigned Opc = Align < 128 ? Hexagon::PS_vloadrwu_ai_128B
: Hexagon::PS_vloadrw_ai_128B;
BuildMI(MBB, I, DL, get(Opc), DestReg)
.addFrameIndex(FI).addImm(0).addMemOperand(MMO);
} else if (Hexagon::VectorRegs128BRegClass.hasSubClassEq(RC)) {
// If there are variable-sized objects, spills will not be aligned.
if (HasAlloca)
Align = HFI.getStackAlignment();
unsigned Opc = Align < 128 ? Hexagon::V6_vL32Ub_ai_128B
: Hexagon::V6_vL32b_ai_128B;
BuildMI(MBB, I, DL, get(Opc), DestReg)
.addFrameIndex(FI).addImm(0).addMemOperand(MMO);
} else if (Hexagon::VectorRegsRegClass.hasSubClassEq(RC)) {
// If there are variable-sized objects, spills will not be aligned.
if (HasAlloca)
Align = HFI.getStackAlignment();
unsigned Opc = Align < 64 ? Hexagon::V6_vL32Ub_ai
: Hexagon::V6_vL32b_ai;
BuildMI(MBB, I, DL, get(Opc), DestReg)
.addFrameIndex(FI).addImm(0).addMemOperand(MMO);
} else if (Hexagon::VecDblRegsRegClass.hasSubClassEq(RC)) {
// If there are variable-sized objects, spills will not be aligned.
if (HasAlloca)
Align = HFI.getStackAlignment();
unsigned Opc = Align < 64 ? Hexagon::PS_vloadrwu_ai
: Hexagon::PS_vloadrw_ai;
BuildMI(MBB, I, DL, get(Opc), DestReg)