Add a layer of indirection to make plugins more flexible.

Use strings instead of TableGen defs in the compilation graph
definition. Makes it easier for the plugins to modify an existing graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59447 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 10 deletions

diff --git a/include/llvm/CompilerDriver/Common.td b/include/llvm/CompilerDriver/Common.td
index 45518385e4..e017326069 100644
--- a/include/llvm/CompilerDriver/Common.td
+++ b/include/llvm/CompilerDriver/Common.td
@@ -15,10 +15,6 @@ class Tool<list<dag> l> {
       list<dag> properties = l;
 }
 
-// Special Tool instance - the root node of the compilation graph.
-
-def root : Tool<[]>;
-
 // Possible Tool properties
 
 def in_language;
@@ -87,19 +83,19 @@ class LanguageMap<list<LangToSuffixes> lst> {
 
 // Compilation graph
 
-class EdgeBase<Tool t1, Tool t2, dag d> {
-      Tool a = t1;
-      Tool b = t2;
+class EdgeBase<string t1, string t2, dag d> {
+      string a = t1;
+      string b = t2;
       dag weight = d;
 }
 
-class Edge<Tool t1, Tool t2> : EdgeBase<t1, t2, (empty)>;
+class Edge<string t1, string t2> : EdgeBase<t1, t2, (empty)>;
 
 // Edge and SimpleEdge are synonyms.
-class SimpleEdge<Tool t1, Tool t2> : EdgeBase<t1, t2, (empty)>;
+class SimpleEdge<string t1, string t2> : EdgeBase<t1, t2, (empty)>;
 
 // Optionally enabled edge.
-class OptionalEdge<Tool t1, Tool t2, dag props> : EdgeBase<t1, t2, props>;
+class OptionalEdge<string t1, string t2, dag props> : EdgeBase<t1, t2, props>;
 
 class CompilationGraph<list<EdgeBase> lst> {
       list<EdgeBase> edges = lst;