TableGen: add !isa operation
Change-Id: Iddb724c3ae706d82933a2d82c91d07e0e36b30e3
Differential revision: https://reviews.llvm.org/D44105
llvm-svn: 327117
diff --git a/llvm/lib/TableGen/TGParser.cpp b/llvm/lib/TableGen/TGParser.cpp
index 488d1c8..47c7345 100644
--- a/llvm/lib/TableGen/TGParser.cpp
+++ b/llvm/lib/TableGen/TGParser.cpp
@@ -936,6 +936,33 @@
return (UnOpInit::get(Code, LHS, Type))->Fold(CurRec, CurMultiClass);
}
+ case tgtok::XIsA: {
+ // Value ::= !isa '<' Type '>' '(' Value ')'
+ Lex.Lex(); // eat the operation
+
+ RecTy *Type = ParseOperatorType();
+ if (!Type)
+ return nullptr;
+
+ if (Lex.getCode() != tgtok::l_paren) {
+ TokError("expected '(' after type of !isa");
+ return nullptr;
+ }
+ Lex.Lex(); // eat the '('
+
+ Init *LHS = ParseValue(CurRec);
+ if (!LHS)
+ return nullptr;
+
+ if (Lex.getCode() != tgtok::r_paren) {
+ TokError("expected ')' in !isa");
+ return nullptr;
+ }
+ Lex.Lex(); // eat the ')'
+
+ return (IsAOpInit::get(Type, LHS))->Fold();
+ }
+
case tgtok::XConcat:
case tgtok::XADD:
case tgtok::XAND:
@@ -1696,6 +1723,7 @@
case tgtok::XSize:
case tgtok::XEmpty:
case tgtok::XCast: // Value ::= !unop '(' Value ')'
+ case tgtok::XIsA:
case tgtok::XConcat:
case tgtok::XADD:
case tgtok::XAND: