[polly] r269301 - Bring some comments up to date [NFC]

[Johannes Doerfert via llvm-commits]

Author: jdoerfert
Date: Thu May 12 10:15:50 2016
New Revision: 269301

URL: http://llvm.org/viewvc/llvm-project?rev=269301&view=rev
Log:
Bring some comments up to date [NFC]

Modified:
    polly/trunk/lib/Support/SCEVValidator.cpp

Modified: polly/trunk/lib/Support/SCEVValidator.cpp
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/lib/Support/SCEVValidator.cpp?rev=269301&r1=269300&r2=269301&view=diff
==============================================================================
--- polly/trunk/lib/Support/SCEVValidator.cpp (original)
+++ polly/trunk/lib/Support/SCEVValidator.cpp Thu May 12 10:15:50 2016
@@ -144,10 +144,6 @@ public:
   }
 
   class ValidatorResult visitSignExtendExpr(const SCEVSignExtendExpr *Expr) {
-    // We currently allow only signed SCEV expressions. In the case of a
-    // signed value, a sign extend is a noop.
-    //
-    // TODO: Reconsider this when we add support for unsigned values.
     return visit(Expr->getOperand());
   }
 
@@ -163,7 +159,6 @@ public:
         break;
     }
 
-    // TODO: Check for NSW and NUW.
     return Return;
   }
 
@@ -199,7 +194,6 @@ public:
     if (HasMultipleParams && Return.isValid())
       return ValidatorResult(SCEVType::PARAM, Expr);
 
-    // TODO: Check for NSW and NUW.
     return Return;
   }
 
@@ -273,8 +267,8 @@ public:
   }
 
   class ValidatorResult visitUMaxExpr(const SCEVUMaxExpr *Expr) {
-    // We do not support unsigned operations. If 'Expr' is constant during Scop
-    // execution we treat this as a parameter, otherwise we bail out.
+    // We do not support unsigned max operations. If 'Expr' is constant during
+    // Scop execution we treat this as a parameter, otherwise we bail out.
     for (int i = 0, e = Expr->getNumOperands(); i < e; ++i) {
       ValidatorResult Op = visit(Expr->getOperand(i));