Silence gcc warning in testcase [NFC]

Without the fix gcc (7.4.0) complains with

../unittests/ADT/APIntTest.cpp: In member function 'virtual void {anonymous}::APIntTest_MultiplicativeInverseExaustive_Test::TestBody()':
../unittests/ADT/APIntTest.cpp:2510:36: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
     for (unsigned Value = 0; Value < (1 << BitWidth); ++Value) {
                              ~~~~~~^~~~~~~~~~~~~~~~~

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364624 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/unittests/ADT/APIntTest.cpp b/unittests/ADT/APIntTest.cpp
index 0755a8cc667330e38e17cd927470df181432ad2f..f5f6594b836369a9be18e53304820ca8121bf7e4 100644 (file)
--- a/unittests/ADT/APIntTest.cpp
+++ b/unittests/ADT/APIntTest.cpp
@@ -2507,7 +2507,7 @@ TEST(APIntTest, SolveQuadraticEquationWrap) {
 
 TEST(APIntTest, MultiplicativeInverseExaustive) {
   for (unsigned BitWidth = 1; BitWidth <= 16; ++BitWidth) {
-    for (unsigned Value = 0; Value < (1 << BitWidth); ++Value) {
+    for (unsigned Value = 0; Value < (1u << BitWidth); ++Value) {
       APInt V = APInt(BitWidth, Value);
       APInt MulInv =
           V.zext(BitWidth + 1)