return areAliases(regA, regB);
}
+ /// isSubRegister - Returns true if regB is a sub-register of regA.
+ ///
+ bool isSubRegister(unsigned regA, unsigned regB) const {
+ for (const unsigned *SR = getSubRegisters(regA); *SR; ++SR)
+ if (*SR == regB) return true;
+ return false;
+ }
+
+ /// isSuperRegister - Returns true if regB is a super-register of regA.
+ ///
+ bool isSuperRegister(unsigned regA, unsigned regB) const {
+ for (const unsigned *SR = getSuperRegisters(regA); *SR; ++SR)
+ if (*SR == regB) return true;
+ return false;
+ }
+
/// getCalleeSavedRegs - Return a null-terminated list of all of the
/// callee saved registers on this target. The register should be in the
/// order of desired callee-save stack frame offset. The first register is