Add support to tablegen for naming the nodes themselves, not just the operands,
in selectiondag patterns. This is required for the upcoming shuffle_vector rewrite,
and as it turns out, cleans up a hack in the Alpha instruction info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67286 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/TGParser.cpp b/utils/TableGen/TGParser.cpp
index 1fa8272..9d579c2 100644
--- a/utils/TableGen/TGParser.cpp
+++ b/utils/TableGen/TGParser.cpp
@@ -636,6 +636,18 @@
Init *Operator = ParseIDValue(CurRec);
if (Operator == 0) return 0;
+ // If the operator name is present, parse it.
+ std::string OperatorName;
+ if (Lex.getCode() == tgtok::colon) {
+ if (Lex.Lex() != tgtok::VarName) { // eat the ':'
+ TokError("expected variable name in dag operator");
+ return 0;
+ }
+ OperatorName = Lex.getCurStrVal();
+ Lex.Lex(); // eat the VarName.
+ }
+
+
std::vector<std::pair<llvm::Init*, std::string> > DagArgs;
if (Lex.getCode() != tgtok::r_paren) {
DagArgs = ParseDagArgList(CurRec);
@@ -648,7 +660,7 @@
}
Lex.Lex(); // eat the ')'
- return new DagInit(Operator, DagArgs);
+ return new DagInit(Operator, OperatorName, DagArgs);
}
case tgtok::XConcat:
case tgtok::XSRA: