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Move isSubRegister() and isSuperRegister to MCRegisterInfo.

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These were defined on TargetRegisterInfo, but they don't use any information
that's not available in MCRegisterInfo, so sink them down to be available
at the MC layer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170608 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2012-12-19 23:38:46 +00:00
parent dd2fa5195e
commit e188fb7dd9
2 changed files with 17 additions and 15 deletions
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17
include/llvm/MC/MCRegisterInfo.h
View File

@ -386,6 +386,14 @@ public:
return RegEncodingTable[RegNo];
}
/// Returns true if regB is a sub-register of regA.
bool isSubRegister(unsigned regA, unsigned regB) const {
return isSuperRegister(regB, regA);
}
/// Returns true if regB is a super-register of regA.
bool isSuperRegister(unsigned RegA, unsigned RegB) const;
};
//===----------------------------------------------------------------------===//
@ -426,6 +434,15 @@ public:
}
};
// Definition for isSuperRegister. Put it down here since it needs the
// iterator defined above in addition to the MCRegisterInfo class itself.
inline bool MCRegisterInfo::isSuperRegister(unsigned RegA, unsigned RegB) const{
for (MCSuperRegIterator I(RegA, this); I.isValid(); ++I)
if (*I == RegB)
return true;
return false;
}
//===----------------------------------------------------------------------===//
// Register Units
//===----------------------------------------------------------------------===//

15
include/llvm/Target/TargetRegisterInfo.h
View File

@ -388,21 +388,6 @@ public:
return false;
}
/// isSubRegister - Returns true if regB is a sub-register of regA.
///
bool isSubRegister(unsigned regA, unsigned regB) const {
return isSuperRegister(regB, regA);
}
/// isSuperRegister - Returns true if regB is a super-register of regA.
///
bool isSuperRegister(unsigned RegA, unsigned RegB) const {
for (MCSuperRegIterator I(RegA, this); I.isValid(); ++I)
if (*I == 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