[tablegen] Add !listconcat operator with the similar semantics as !strconcat
Summary:
It concatenates two or more lists. In addition to the !strconcat semantics
the lists must have the same element type.
My overall aim is to make it easy to append to Instruction.Predicates
rather than override it. This can be done by concatenating lists passed as
arguments, or by concatenating lists passed in additional fields.
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: hfinkel, llvm-commits
Differential Revision: http://reviews.llvm.org/D3506
llvm-svn: 208183
diff --git a/llvm/lib/TableGen/Record.cpp b/llvm/lib/TableGen/Record.cpp
index 57d2703..c17aea9 100644
--- a/llvm/lib/TableGen/Record.cpp
+++ b/llvm/lib/TableGen/Record.cpp
@@ -918,6 +918,18 @@
}
break;
}
+ case LISTCONCAT: {
+ ListInit *LHSs = dyn_cast<ListInit>(LHS);
+ ListInit *RHSs = dyn_cast<ListInit>(RHS);
+ if (LHSs && RHSs) {
+ std::vector<Init *> Args;
+ Args.insert(Args.end(), LHSs->begin(), LHSs->end());
+ Args.insert(Args.end(), RHSs->begin(), RHSs->end());
+ return ListInit::get(
+ Args, static_cast<ListRecTy *>(LHSs->getType())->getElementType());
+ }
+ break;
+ }
case STRCONCAT: {
StringInit *LHSs = dyn_cast<StringInit>(LHS);
StringInit *RHSs = dyn_cast<StringInit>(RHS);
@@ -987,6 +999,7 @@
case SRA: Result = "!sra"; break;
case SRL: Result = "!srl"; break;
case EQ: Result = "!eq"; break;
+ case LISTCONCAT: Result = "!listconcat"; break;
case STRCONCAT: Result = "!strconcat"; break;
}
return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";