add enough support for indirect branch for the feature test to pass

(assembler,asmprinter, bc reader+writer) and document it.  Codegen
currently aborts on it.

llvm-svn: 85274

2 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index b220d55f548..73c9c5f57ec 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -2131,6 +2131,11 @@ void SelectionDAGLowering::visitSwitch(SwitchInst &SI) {
   }
 }
 
+void SelectionDAGLowering::visitIndBr(IndBrInst &I) {
+  fprintf(stderr, "indbr codegen not implemented yet");
+  abort();
+}
+
 
 void SelectionDAGLowering::visitFSub(User &I) {
   // -0.0 - X --> fneg
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.h b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.h
index 74705514de6..9aca707ecfc 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.h
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuild.h
@@ -49,6 +49,7 @@ class GetElementPtrInst;
 class GCFunctionInfo;
 class ICmpInst;
 class IntToPtrInst;
+class IndBrInst;
 class InvokeInst;
 class InsertElementInst;
 class InsertValueInst;
@@ -448,6 +449,7 @@ private:
   void visitRet(ReturnInst &I);
   void visitBr(BranchInst &I);
   void visitSwitch(SwitchInst &I);
+  void visitIndBr(IndBrInst &I);
   void visitUnreachable(UnreachableInst &I) { /* noop */ }
 
   // Helpers for visitSwitch