/// Registers that this does not apply to simply should set this to null.
///
struct MRegisterDesc {
- const char *Name; // Assembly language name for the register
- const unsigned *AliasSet; // Register Alias Set, described above
- unsigned Flags; // Flags identifying register properties (below)
- unsigned TSFlags; // Target Specific Flags
+ const char *Name; // Assembly language name for the register
+ const unsigned *AliasSet; // Register Alias Set, described above
+ unsigned char SpillSize; // Size of this register in bytes
+ unsigned char SpillAlignment; // Alignment of stack slot for this reg
};
class TargetRegisterClass {
return get(RegNo).Name;
}
+ /// getSpillSize - Return the size required of a stack slot used to spill
+ /// register into.
+ unsigned getSpillSize(unsigned RegNo) const {
+ return get(RegNo).SpillSize;
+ }
+
+ /// getSpillAlignment - Return the alignment required by a stack slot used to
+ /// spill register into.
+ unsigned getSpillAlignment(unsigned RegNo) const {
+ return get(RegNo).SpillAlignment;
+ }
+
/// getNumRegs - Return the number of registers this target has
/// (useful for sizing arrays holding per register information)
unsigned getNumRegs() const {