raw_ostream: Follow the 32-bit path when printing "small" decimal numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77444 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index 992c11a8220510e6a2d6d8521369d9e67b88a7f7..d2d0f4ef2a2bbbe0c3152ae0b8c54703ba46f694 100644 (file)
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -89,6 +89,10 @@ raw_ostream &raw_ostream::operator<<(long N) {
 }
 
 raw_ostream &raw_ostream::operator<<(unsigned long long N) {
+  // Output using 32-bit div/mod when possible.
+  if (N == static_cast<unsigned long>(N))
+    return this->operator<<(static_cast<unsigned long>(N));
+
   // Zero is a special case.
   if (N == 0)
     return *this << '0';