TblGen diagnostic for mismatched template instantiation.
Providing a template argment to a non-templatized class was crashing
tblgen. Add a diagnostic.
For example,
$ cat bug.td
class A;
def B : A<0> {
}
$ llvm-tblgen bug.td
bug.td:3:11: error: template argument provided to non-template class
def B : A<0> {
^
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148565 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/TableGen/TGParser.cpp b/lib/TableGen/TGParser.cpp
index 81c6829..9ed7ebb 100644
--- a/lib/TableGen/TGParser.cpp
+++ b/lib/TableGen/TGParser.cpp
@@ -1516,6 +1516,10 @@
unsigned int ArgN = 0;
if (ArgsRec != 0 && EltTy == 0) {
const std::vector<Init *> &TArgs = ArgsRec->getTemplateArgs();
+ if (!TArgs.size()) {
+ TokError("template argument provided to non-template class");
+ return std::vector<Init*>();
+ }
const RecordVal *RV = ArgsRec->getValue(TArgs[ArgN]);
if (!RV) {
errs() << "Cannot find template arg " << ArgN << " (" << TArgs[ArgN]