namespace llvm {
-namespace CU {
-
- /// Compact unwind encoding values.
- enum CompactUnwindEncodings {
- /// [RE]BP based frame where [RE]BP is pused on the stack immediately after
- /// the return address, then [RE]SP is moved to [RE]BP.
- UNWIND_MODE_BP_FRAME = 0x01000000,
-
- /// A frameless function with a small constant stack size.
- UNWIND_MODE_STACK_IMMD = 0x02000000,
-
- /// A frameless function with a large constant stack size.
- UNWIND_MODE_STACK_IND = 0x03000000,
-
- /// No compact unwind encoding is available.
- UNWIND_MODE_DWARF = 0x04000000,
-
- /// Mask for encoding the frame registers.
- UNWIND_BP_FRAME_REGISTERS = 0x00007FFF,
-
- /// Mask for encoding the frameless registers.
- UNWIND_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF
- };
-
-} // end CU namespace
-
class MCSymbol;
class X86TargetMachine;
int getFrameIndexOffset(const MachineFunction &MF, int FI) const;
int getFrameIndexReference(const MachineFunction &MF, int FI,
unsigned &FrameReg) const;
- uint32_t getCompactUnwindEncoding(MachineFunction &MF) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,