commit e8dea1bc562fc949f1d9318c4b38f3a7e79ba27f
author Craig Topper <craig.topper@gmail.com> Fri Apr 28 21:48:09 2017 +0000
committer Craig Topper <craig.topper@gmail.com> Fri Apr 28 21:48:09 2017 +0000
tree 13c45fd76f7c60f6d1a61518703e52dd34946983
parent 8d01d5da78d9cd672ff0bfc431a149bc12560355

[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

llvm-svn: 301696

llvm/lib/IR/ConstantRange.cpp

diff --git a/llvm/lib/IR/ConstantRange.cpp b/llvm/lib/IR/ConstantRange.cpp
index a58a641..072a9a9 100644
--- a/llvm/lib/IR/ConstantRange.cpp
+++ b/llvm/lib/IR/ConstantRange.cpp
@@ -198,7 +198,7 @@
     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 @@
   // 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()));
 }