From e87de41189b1591afd88e4dc12eeb17e06b77d3e Mon Sep 17 00:00:00 2001
From: Bruno Cardoso Lopes <bruno.cardoso@gmail.com>
Date: Wed, 16 Jun 2010 23:24:12 +0000
Subject: let the '!eq' expression support 'int' and 'bit' types

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106171 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/Record.cpp | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'utils/TableGen/Record.cpp')

diff --git a/utils/TableGen/Record.cpp b/utils/TableGen/Record.cpp
index 4f9f6045c1..d9c5dd30e1 100644
--- a/utils/TableGen/Record.cpp
+++ b/utils/TableGen/Record.cpp
@@ -721,9 +721,20 @@ Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
     break;
   }
   case EQ: {
-    // Make sure we've resolved
+    // try to fold eq comparison for 'bit' and 'int', otherwise fallback
+    // to string objects.
+    IntInit* L =
+      dynamic_cast<IntInit*>(LHS->convertInitializerTo(new IntRecTy()));
+    IntInit* R =
+      dynamic_cast<IntInit*>(RHS->convertInitializerTo(new IntRecTy()));
+
+    if (L && R)
+      return new IntInit(L->getValue() == R->getValue());
+
     StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
     StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
+
+    // Make sure we've resolved
     if (LHSs && RHSs)
       return new IntInit(LHSs->getValue() == RHSs->getValue());
 
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