[llvm] r301696 - [ConstantRange] Use APInt::isNullValue rather than APInt::isMinValue where it would make more sense to thing of 0 as 0 rather than the minimum unsigned value. NFC

[Craig Topper via llvm-commits]

Author: ctopper
Date: Fri Apr 28 16:48:09 2017
New Revision: 301696

URL: http://llvm.org/viewvc/llvm-project?rev=301696&view=rev
Log:
[ConstantRange] Use APInt::isNullValue rather than APInt::isMinValue where it would make more sense to thing of 0 as 0 rather than the minimum unsigned value. NFC

Modified:
    llvm/trunk/lib/IR/ConstantRange.cpp

Modified: llvm/trunk/lib/IR/ConstantRange.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/ConstantRange.cpp?rev=301696&r1=301695&r2=301696&view=diff
==============================================================================
--- llvm/trunk/lib/IR/ConstantRange.cpp (original)
+++ llvm/trunk/lib/IR/ConstantRange.cpp Fri Apr 28 16:48:09 2017
@@ -198,7 +198,7 @@ ConstantRange::makeGuaranteedNoWrapRegio
     return ConstantRange(BitWidth, false);
 
   if (auto *C = Other.getSingleElement())
-    if (C->isMinValue())
+    if (C->isNullValue())
       // Full set: nothing signed / unsigned wraps when added to 0.
       return ConstantRange(BitWidth);
 
@@ -884,7 +884,7 @@ ConstantRange::binaryOr(const ConstantRa
   // TODO: replace this with something less conservative
 
   APInt umax = APIntOps::umax(getUnsignedMin(), Other.getUnsignedMin());
-  if (umax.isMinValue())
+  if (umax.isNullValue())
     return ConstantRange(getBitWidth(), /*isFullSet=*/true);
   return ConstantRange(umax, APInt::getNullValue(getBitWidth()));
 }