+/// getEntrySize - Return the size of each entry in the jump table.
+unsigned MachineJumpTableInfo::getEntrySize(const TargetData &TD) const {
+ // The size of a jump table entry is 4 bytes unless the entry is just the
+ // address of a block, in which case it is the pointer size.
+ switch (getEntryKind()) {
+ case MachineJumpTableInfo::EK_BlockAddress:
+ return TD.getPointerSize();
+ case MachineJumpTableInfo::EK_GPRel64BlockAddress:
+ return 8;
+ case MachineJumpTableInfo::EK_GPRel32BlockAddress:
+ case MachineJumpTableInfo::EK_LabelDifference32:
+ case MachineJumpTableInfo::EK_Custom32:
+ return 4;
+ case MachineJumpTableInfo::EK_Inline:
+ return 0;
+ }
+ llvm_unreachable("Unknown jump table encoding!");
+}
+
+/// getEntryAlignment - Return the alignment of each entry in the jump table.
+unsigned MachineJumpTableInfo::getEntryAlignment(const TargetData &TD) const {
+ // The alignment of a jump table entry is the alignment of int32 unless the
+ // entry is just the address of a block, in which case it is the pointer
+ // alignment.
+ switch (getEntryKind()) {
+ case MachineJumpTableInfo::EK_BlockAddress:
+ return TD.getPointerABIAlignment();
+ case MachineJumpTableInfo::EK_GPRel64BlockAddress:
+ return TD.getABIIntegerTypeAlignment(64);
+ case MachineJumpTableInfo::EK_GPRel32BlockAddress:
+ case MachineJumpTableInfo::EK_LabelDifference32:
+ case MachineJumpTableInfo::EK_Custom32:
+ return TD.getABIIntegerTypeAlignment(32);
+ case MachineJumpTableInfo::EK_Inline:
+ return 1;
+ }
+ llvm_unreachable("Unknown jump table encoding!");
+}
+
+/// createJumpTableIndex - Create a new jump table entry in the jump table info.