Avoid creating a redundant zero APInt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52602 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp
index e13011faeac3f1fe5f3ac29c843138d6f832ed03..38b379005af0f77a910b5ba3accc4b82f37555f4 100644 (file)
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -2048,7 +2048,7 @@ std::string APInt::toString(uint8_t radix, bool wantSigned) const {
     result = "-";
     insert_at = 1;
   }
-  if (tmp == APInt(tmp.getBitWidth(), 0))
+  if (tmp == zero)
     result = "0";
   else while (tmp.ne(zero)) {
     APInt APdigit(1,0);