llvm-6502/test/TableGen/subst.td

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TableGen
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// RUN: tblgen %s | grep {Smith} | count 7
// RUN: tblgen %s | grep {Johnson} | count 2
// RUN: tblgen %s | grep {FIRST} | count 1
// RUN: tblgen %s | grep {LAST} | count 1
// RUN: tblgen %s | grep {TVAR} | count 2
// RUN: tblgen %s | grep {Bogus} | count 1
class Honorific<string t> {
string honorific = t;
}
def Mr : Honorific<"Mr.">;
def Ms : Honorific<"Ms.">;
def Mrs : Honorific<"Mrs.">;
def TVAR : Honorific<"Bogus">;
class Name<string n, Honorific t> {
string name = n;
Honorific honorific = t;
}
class AName<string name, Honorific honorific> :
Name<!subst("FIRST", "John", !subst("LAST", "Smith", name)),
!subst(TVAR, Mr, honorific)>;
def JohnSmith : AName<"FIRST LAST", TVAR>;
def JaneSmith : AName<"Jane LAST", Ms>;
def JohnSmithJones : AName<"FIRST LAST-Jones", Mr>;
def JimmyJohnson : AName<"Jimmy Johnson", Mr>;