X86MachineFunctionInfo as this is currently only used by X86. If this ever
becomes an issue on another arch (e.g., ARM) then we can hoist it back out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160009
91177308-0d34-0410-b5e6-
96231b3b80d8
/// just allocate them normally.
bool UseLocalStackAllocationBlock;
- /// After the stack pointer has been restore from the base pointer we
- /// use a cached adjusment. Currently only used for x86.
- int64_t BPAdj;
-
public:
explicit MachineFrameInfo(const TargetFrameLowering &tfi) : TFI(tfi) {
StackSize = NumFixedObjects = OffsetAdjustment = MaxAlignment = 0;
LocalFrameSize = 0;
LocalFrameMaxAlign = 0;
UseLocalStackAllocationBlock = false;
- BPAdj = 0;
}
/// hasStackObjects - Return true if there are any stack objects in this
void setCalleeSavedInfoValid(bool v) { CSIValid = v; }
- /// setBasePtrStackAdjustment - If we're restoring the stack pointer from the
- /// base pointer, due to dynamic stack realignment + VLAs, we cache the
- /// number of bytes initially allocated for the stack frame. In obscure
- /// cases (e.g., tail calls with byval argument and no stack protector), the
- /// stack gets adjusted outside of the prolog, but these shouldn't be
- /// considered when restoring from the base pointer. Currently, this is only
- /// needed for x86.
- void setBasePtrStackAdjustment(int64_t adj) { BPAdj = adj; }
- int64_t getBasePtrStackAdjustment() const { return BPAdj; }
-
/// getPristineRegs - Return a set of physical registers that are pristine on
/// entry to the MBB.
///
.addReg(StackPtr)
.setMIFlag(MachineInstr::FrameSetup);
- MFI->setBasePtrStackAdjustment(NumBytes);
+ X86FI->setBasePtrStackAdjustment(NumBytes);
}
if (( (!HasFP && NumBytes) || PushedRegs) && needsFrameMoves) {
StackPtr).addReg(BasePtr);
// When restoring from the BP we must use a cached SP adjustment.
- NumBytes = MFI->getBasePtrStackAdjustment();
+ NumBytes = X86FI->getBasePtrStackAdjustment();
}
// If dynamic alloca is used, then reset esp to point to the last callee-saved
/// NumLocalDynamics - Number of local-dynamic TLS accesses.
unsigned NumLocalDynamics;
+ /// After the stack pointer has been restore from the base pointer we
+ /// use a cached adjusment.
+ int64_t BPAdj;
+
public:
X86MachineFunctionInfo() : ForceFramePointer(false),
CalleeSavedFrameSize(0),
VarArgsGPOffset(0),
VarArgsFPOffset(0),
ArgumentStackSize(0),
- NumLocalDynamics(0) {}
-
+ NumLocalDynamics(0),
+ BPAdj(0) {}
+
bool getForceFramePointer() const { return ForceFramePointer;}
void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
+
+ /// setBasePtrStackAdjustment - If we're restoring the stack pointer from the
+ /// base pointer, due to dynamic stack realignment + VLAs, we cache the
+ /// number of bytes initially allocated for the stack frame. In obscure
+ /// cases (e.g., tail calls with byval argument and no stack protector), the
+ /// stack gets adjusted outside of the prolog, but these shouldn't be
+ /// considered when restoring from the base pointer. Currently, this is only
+ /// needed for x86.
+ void setBasePtrStackAdjustment(int64_t adj) { BPAdj = adj; }
+ int64_t getBasePtrStackAdjustment() const { return BPAdj; }
};
} // End llvm namespace