Add initial support for list slices. This currently allows you to do stuff

like this:

def B {
  list<int> X = [10, 20, 30, 4, 1, 1231, 20] [2-4,2,2,0-6];
}

... which isn't particularly useful, but more is to come.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15247 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/utils/TableGen/Record.cpp b/utils/TableGen/Record.cpp
index 3fc14c59ed..fee36b023a 100644
--- a/utils/TableGen/Record.cpp
+++ b/utils/TableGen/Record.cpp
@@ -310,6 +310,16 @@ Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
   return BI;
 }
 
+Init *ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
+  std::vector<Init*> Vals;
+  for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
+    if (Elements[i] >= getSize())
+      return 0;
+    Vals.push_back(getElement(Elements[i]));
+  }
+  return new ListInit(Vals);
+}
+
 void ListInit::print(std::ostream &OS) const {
   OS << "[";
   for (unsigned i = 0, e = Values.size(); i != e; ++i) {