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Diffstat (limited to 'lib/Target/AArch64/AArch64FrameLowering.cpp')
-rw-r--r--lib/Target/AArch64/AArch64FrameLowering.cpp57
1 files changed, 32 insertions, 25 deletions
diff --git a/lib/Target/AArch64/AArch64FrameLowering.cpp b/lib/Target/AArch64/AArch64FrameLowering.cpp
index 9c337172dd06..66aa216db2c9 100644
--- a/lib/Target/AArch64/AArch64FrameLowering.cpp
+++ b/lib/Target/AArch64/AArch64FrameLowering.cpp
@@ -17,16 +17,16 @@
#include "AArch64Subtarget.h"
#include "AArch64TargetMachine.h"
#include "llvm/ADT/Statistic.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Function.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/RegisterScavenging.h"
-#include "llvm/Support/Debug.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Function.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
@@ -86,13 +86,14 @@ bool AArch64FrameLowering::hasFP(const MachineFunction &MF) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();
#ifndef NDEBUG
- const TargetRegisterInfo *RegInfo = MF.getTarget().getRegisterInfo();
+ const TargetRegisterInfo *RegInfo = MF.getSubtarget().getRegisterInfo();
assert(!RegInfo->needsStackRealignment(MF) &&
"No stack realignment on AArch64!");
#endif
return (MFI->hasCalls() || MFI->hasVarSizedObjects() ||
- MFI->isFrameAddressTaken());
+ MFI->isFrameAddressTaken() || MFI->hasStackMap() ||
+ MFI->hasPatchPoint());
}
/// hasReservedCallFrame - Under normal circumstances, when a frame pointer is
@@ -109,13 +110,13 @@ void AArch64FrameLowering::eliminateCallFramePseudoInstr(
MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
const AArch64InstrInfo *TII =
- static_cast<const AArch64InstrInfo *>(MF.getTarget().getInstrInfo());
+ static_cast<const AArch64InstrInfo *>(MF.getSubtarget().getInstrInfo());
DebugLoc DL = I->getDebugLoc();
int Opc = I->getOpcode();
bool IsDestroy = Opc == TII->getCallFrameDestroyOpcode();
uint64_t CalleePopAmount = IsDestroy ? I->getOperand(1).getImm() : 0;
- const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
+ const TargetFrameLowering *TFI = MF.getSubtarget().getFrameLowering();
if (!TFI->hasReservedCallFrame(MF)) {
unsigned Align = getStackAlignment();
@@ -131,7 +132,7 @@ void AArch64FrameLowering::eliminateCallFramePseudoInstr(
// FIXME: in-function stack adjustment for calls is limited to 24-bits
// because there's no guaranteed temporary register available.
//
- // ADD/SUB (immediate) has only LSL #0 and LSL #12 avaiable.
+ // ADD/SUB (immediate) has only LSL #0 and LSL #12 available.
// 1) For offset <= 12-bit, we use LSL #0
// 2) For 12-bit <= offset <= 24-bit, we use two instructions. One uses
// LSL #0, and the other uses LSL #12.
@@ -158,7 +159,7 @@ void AArch64FrameLowering::emitCalleeSavedFrameMoves(
MachineFrameInfo *MFI = MF.getFrameInfo();
MachineModuleInfo &MMI = MF.getMMI();
const MCRegisterInfo *MRI = MMI.getContext().getRegisterInfo();
- const TargetInstrInfo *TII = MF.getTarget().getInstrInfo();
+ const TargetInstrInfo *TII = MF.getSubtarget().getInstrInfo();
DebugLoc DL = MBB.findDebugLoc(MBBI);
// Add callee saved registers to move list.
@@ -166,7 +167,7 @@ void AArch64FrameLowering::emitCalleeSavedFrameMoves(
if (CSI.empty())
return;
- const DataLayout *TD = MF.getTarget().getDataLayout();
+ const DataLayout *TD = MF.getSubtarget().getDataLayout();
bool HasFP = hasFP(MF);
// Calculate amount of bytes used for return address storing.
@@ -195,7 +196,8 @@ void AArch64FrameLowering::emitCalleeSavedFrameMoves(
unsigned CFIIndex = MMI.addFrameInst(MCCFIInstruction::createOffset(
nullptr, DwarfReg, Offset - TotalSkipped));
BuildMI(MBB, MBBI, DL, TII->get(TargetOpcode::CFI_INSTRUCTION))
- .addCFIIndex(CFIIndex);
+ .addCFIIndex(CFIIndex)
+ .setMIFlags(MachineInstr::FrameSetup);
}
}
@@ -205,8 +207,8 @@ void AArch64FrameLowering::emitPrologue(MachineFunction &MF) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();
const Function *Fn = MF.getFunction();
const AArch64RegisterInfo *RegInfo = static_cast<const AArch64RegisterInfo *>(
- MF.getTarget().getRegisterInfo());
- const TargetInstrInfo *TII = MF.getTarget().getInstrInfo();
+ MF.getSubtarget().getRegisterInfo());
+ const TargetInstrInfo *TII = MF.getSubtarget().getInstrInfo();
MachineModuleInfo &MMI = MF.getMMI();
AArch64FunctionInfo *AFI = MF.getInfo<AArch64FunctionInfo>();
bool needsFrameMoves = MMI.hasDebugInfo() || Fn->needsUnwindTableEntry();
@@ -233,7 +235,8 @@ void AArch64FrameLowering::emitPrologue(MachineFunction &MF) const {
unsigned CFIIndex = MMI.addFrameInst(
MCCFIInstruction::createDefCfaOffset(FrameLabel, -NumBytes));
BuildMI(MBB, MBBI, DL, TII->get(TargetOpcode::CFI_INSTRUCTION))
- .addCFIIndex(CFIIndex);
+ .addCFIIndex(CFIIndex)
+ .setMIFlags(MachineInstr::FrameSetup);
} else if (NumBytes) {
++NumRedZoneFunctions;
}
@@ -300,7 +303,7 @@ void AArch64FrameLowering::emitPrologue(MachineFunction &MF) const {
TII->copyPhysReg(MBB, MBBI, DL, AArch64::X19, AArch64::SP, false);
if (needsFrameMoves) {
- const DataLayout *TD = MF.getTarget().getDataLayout();
+ const DataLayout *TD = MF.getSubtarget().getDataLayout();
const int StackGrowth = -TD->getPointerSize(0);
unsigned FramePtr = RegInfo->getFrameRegister(MF);
@@ -376,26 +379,30 @@ void AArch64FrameLowering::emitPrologue(MachineFunction &MF) const {
unsigned CFIIndex = MMI.addFrameInst(
MCCFIInstruction::createDefCfa(nullptr, Reg, 2 * StackGrowth));
BuildMI(MBB, MBBI, DL, TII->get(TargetOpcode::CFI_INSTRUCTION))
- .addCFIIndex(CFIIndex);
+ .addCFIIndex(CFIIndex)
+ .setMIFlags(MachineInstr::FrameSetup);
// Record the location of the stored LR
unsigned LR = RegInfo->getDwarfRegNum(AArch64::LR, true);
CFIIndex = MMI.addFrameInst(
MCCFIInstruction::createOffset(nullptr, LR, StackGrowth));
BuildMI(MBB, MBBI, DL, TII->get(TargetOpcode::CFI_INSTRUCTION))
- .addCFIIndex(CFIIndex);
+ .addCFIIndex(CFIIndex)
+ .setMIFlags(MachineInstr::FrameSetup);
// Record the location of the stored FP
CFIIndex = MMI.addFrameInst(
MCCFIInstruction::createOffset(nullptr, Reg, 2 * StackGrowth));
BuildMI(MBB, MBBI, DL, TII->get(TargetOpcode::CFI_INSTRUCTION))
- .addCFIIndex(CFIIndex);
+ .addCFIIndex(CFIIndex)
+ .setMIFlags(MachineInstr::FrameSetup);
} else {
// Encode the stack size of the leaf function.
unsigned CFIIndex = MMI.addFrameInst(
MCCFIInstruction::createDefCfaOffset(nullptr, -MFI->getStackSize()));
BuildMI(MBB, MBBI, DL, TII->get(TargetOpcode::CFI_INSTRUCTION))
- .addCFIIndex(CFIIndex);
+ .addCFIIndex(CFIIndex)
+ .setMIFlags(MachineInstr::FrameSetup);
}
// Now emit the moves for whatever callee saved regs we have.
@@ -435,9 +442,9 @@ void AArch64FrameLowering::emitEpilogue(MachineFunction &MF,
assert(MBBI->isReturn() && "Can only insert epilog into returning blocks");
MachineFrameInfo *MFI = MF.getFrameInfo();
const AArch64InstrInfo *TII =
- static_cast<const AArch64InstrInfo *>(MF.getTarget().getInstrInfo());
+ static_cast<const AArch64InstrInfo *>(MF.getSubtarget().getInstrInfo());
const AArch64RegisterInfo *RegInfo = static_cast<const AArch64RegisterInfo *>(
- MF.getTarget().getRegisterInfo());
+ MF.getSubtarget().getRegisterInfo());
DebugLoc DL = MBBI->getDebugLoc();
unsigned RetOpcode = MBBI->getOpcode();
@@ -548,7 +555,7 @@ int AArch64FrameLowering::resolveFrameIndexReference(const MachineFunction &MF,
bool PreferFP) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();
const AArch64RegisterInfo *RegInfo = static_cast<const AArch64RegisterInfo *>(
- MF.getTarget().getRegisterInfo());
+ MF.getSubtarget().getRegisterInfo());
const AArch64FunctionInfo *AFI = MF.getInfo<AArch64FunctionInfo>();
int FPOffset = MFI->getObjectOffset(FI) + 16;
int Offset = MFI->getObjectOffset(FI) + MFI->getStackSize();
@@ -617,7 +624,7 @@ bool AArch64FrameLowering::spillCalleeSavedRegisters(
const std::vector<CalleeSavedInfo> &CSI,
const TargetRegisterInfo *TRI) const {
MachineFunction &MF = *MBB.getParent();
- const TargetInstrInfo &TII = *MF.getTarget().getInstrInfo();
+ const TargetInstrInfo &TII = *MF.getSubtarget().getInstrInfo();
unsigned Count = CSI.size();
DebugLoc DL;
assert((Count & 1) == 0 && "Odd number of callee-saved regs to spill!");
@@ -693,7 +700,7 @@ bool AArch64FrameLowering::restoreCalleeSavedRegisters(
const std::vector<CalleeSavedInfo> &CSI,
const TargetRegisterInfo *TRI) const {
MachineFunction &MF = *MBB.getParent();
- const TargetInstrInfo &TII = *MF.getTarget().getInstrInfo();
+ const TargetInstrInfo &TII = *MF.getSubtarget().getInstrInfo();
unsigned Count = CSI.size();
DebugLoc DL;
assert((Count & 1) == 0 && "Odd number of callee-saved regs to spill!");
@@ -761,7 +768,7 @@ bool AArch64FrameLowering::restoreCalleeSavedRegisters(
void AArch64FrameLowering::processFunctionBeforeCalleeSavedScan(
MachineFunction &MF, RegScavenger *RS) const {
const AArch64RegisterInfo *RegInfo = static_cast<const AArch64RegisterInfo *>(
- MF.getTarget().getRegisterInfo());
+ MF.getSubtarget().getRegisterInfo());
AArch64FunctionInfo *AFI = MF.getInfo<AArch64FunctionInfo>();
MachineRegisterInfo *MRI = &MF.getRegInfo();
SmallVector<unsigned, 4> UnspilledCSGPRs;
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-06 18:58:19 +0000