From ce3d64025b32d10dbaf9c77f5b1b56a09bc88f82 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 28 Jul 2003 03:39:57 +0000
Subject: [PATCH] Allow initializing variable initializers with variables

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7354 91177308-0d34-0410-b5e6-96231b3b80d8
---
 support/tools/TableGen/Record.cpp | 9 +++++++++
 support/tools/TableGen/Record.h   | 3 ++-
 utils/TableGen/Record.cpp         | 9 +++++++++
 utils/TableGen/Record.h           | 3 ++-
 4 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/support/tools/TableGen/Record.cpp b/support/tools/TableGen/Record.cpp
index 469faa9b01b..2aabef408dd 100644
--- a/support/tools/TableGen/Record.cpp
+++ b/support/tools/TableGen/Record.cpp
@@ -127,6 +127,15 @@ Init *RecordRecTy::convertValue(DefInit *DI) {
   return DI;
 }
 
+Init *RecordRecTy::convertValue(TypedInit *VI) {
+  // Ensure that VI is compatible with Rec.
+  if (RecordRecTy *RRT = dynamic_cast<RecordRecTy*>(VI->getType()))
+    if (RRT->getRecord()->isSubClassOf(getRecord()) ||
+        RRT->getRecord() == getRecord())
+      return VI;
+  return 0;
+}
+
 //===----------------------------------------------------------------------===//
 //    Initializer implementations
 //===----------------------------------------------------------------------===//
diff --git a/support/tools/TableGen/Record.h b/support/tools/TableGen/Record.h
index 73b5c741022..72123cb5205 100644
--- a/support/tools/TableGen/Record.h
+++ b/support/tools/TableGen/Record.h
@@ -136,7 +136,8 @@ public:
   Record *getRecord() const { return Rec; }
 
   Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
-  Init *convertValue(   DefInit *DI);
+  Init *convertValue(  DefInit *DI);
+  Init *convertValue(TypedInit *VI); 
 
   void print(std::ostream &OS) const;
 };
diff --git a/utils/TableGen/Record.cpp b/utils/TableGen/Record.cpp
index 469faa9b01b..2aabef408dd 100644
--- a/utils/TableGen/Record.cpp
+++ b/utils/TableGen/Record.cpp
@@ -127,6 +127,15 @@ Init *RecordRecTy::convertValue(DefInit *DI) {
   return DI;
 }
 
+Init *RecordRecTy::convertValue(TypedInit *VI) {
+  // Ensure that VI is compatible with Rec.
+  if (RecordRecTy *RRT = dynamic_cast<RecordRecTy*>(VI->getType()))
+    if (RRT->getRecord()->isSubClassOf(getRecord()) ||
+        RRT->getRecord() == getRecord())
+      return VI;
+  return 0;
+}
+
 //===----------------------------------------------------------------------===//
 //    Initializer implementations
 //===----------------------------------------------------------------------===//
diff --git a/utils/TableGen/Record.h b/utils/TableGen/Record.h
index 73b5c741022..72123cb5205 100644
--- a/utils/TableGen/Record.h
+++ b/utils/TableGen/Record.h
@@ -136,7 +136,8 @@ public:
   Record *getRecord() const { return Rec; }
 
   Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
-  Init *convertValue(   DefInit *DI);
+  Init *convertValue(  DefInit *DI);
+  Init *convertValue(TypedInit *VI); 
 
   void print(std::ostream &OS) const;
 };