[llvm] r239062 - [APInt] Remove special case for i1.

[Benjamin Kramer]

Author: d0k
Date: Thu Jun  4 13:19:13 2015
New Revision: 239062

URL: http://llvm.org/viewvc/llvm-project?rev=239062&view=rev
Log:
[APInt] Remove special case for i1.

Add a unit test.

Modified:
    llvm/trunk/include/llvm/ADT/APInt.h
    llvm/trunk/unittests/ADT/APIntTest.cpp

Modified: llvm/trunk/include/llvm/ADT/APInt.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/APInt.h?rev=239062&r1=239061&r2=239062&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/APInt.h (original)
+++ llvm/trunk/include/llvm/ADT/APInt.h Thu Jun  4 13:19:13 2015
@@ -351,8 +351,7 @@ public:
   /// This checks to see if the value of this APInt is the maximum signed
   /// value for the APInt's bit width.
   bool isMaxSignedValue() const {
-    return BitWidth == 1 ? VAL == 0
-                         : !isNegative() && countPopulation() == BitWidth - 1;
+    return !isNegative() && countPopulation() == BitWidth - 1;
   }
 
   /// \brief Determine if this is the smallest unsigned value.
@@ -366,7 +365,7 @@ public:
   /// This checks to see if the value of this APInt is the minimum signed
   /// value for the APInt's bit width.
   bool isMinSignedValue() const {
-    return BitWidth == 1 ? VAL == 1 : isNegative() && isPowerOf2();
+    return isNegative() && isPowerOf2();
   }
 
   /// \brief Check if this APInt has an N-bits unsigned integer value.

Modified: llvm/trunk/unittests/ADT/APIntTest.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ADT/APIntTest.cpp?rev=239062&r1=239061&r2=239062&view=diff
==============================================================================
--- llvm/trunk/unittests/ADT/APIntTest.cpp (original)
+++ llvm/trunk/unittests/ADT/APIntTest.cpp Thu Jun  4 13:19:13 2015
@@ -134,6 +134,12 @@ TEST(APIntTest, i1) {
   EXPECT_EQ(one, neg_one);
   EXPECT_EQ(two, neg_two);
 
+  // Min/max signed values.
+  EXPECT_TRUE(zero.isMaxSignedValue());
+  EXPECT_FALSE(one.isMaxSignedValue());
+  EXPECT_FALSE(zero.isMinSignedValue());
+  EXPECT_TRUE(one.isMinSignedValue());
+
   // Additions.
   EXPECT_EQ(two, one + one);
   EXPECT_EQ(zero, neg_one + one);