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This is needed by assignment verification in linear-scan.

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llvm-svn: 11618
This commit is contained in:
Alkis Evlogimenos 2004-02-19 01:10:55 +00:00
parent 584b3d7379
commit ef9c4f4339
1 changed files with 8 additions and 0 deletions
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8
include/llvm/Target/MRegisterInfo.h
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@ -189,6 +189,14 @@ public:
return NumRegs;
}
/// areAliases - Returns true if the two registers alias each other,
/// false otherwise
bool areAliases(unsigned regA, unsigned regB) const {
for (const unsigned *Alias = getAliasSet(regA); *Alias; ++Alias)
if (*Alias == regA) return true;
return false;
}
virtual const unsigned* getCalleeSaveRegs() const = 0;