utostr isn't going away too soon, try to make it slightly smaller.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100977 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/ADT/StringExtras.h b/include/llvm/ADT/StringExtras.h
index 1ea546f46f2999ccee37a999387caf221360d34a..3c53adee63c8016fa812c70b29a3d4446bfcba3a 100644 (file)
--- a/include/llvm/ADT/StringExtras.h
+++ b/include/llvm/ADT/StringExtras.h
@@ -57,15 +57,14 @@ static inline char *utohex_buffer(IntTy X, char *BufferEnd) {
 }
 
 static inline std::string utohexstr(uint64_t X) {
-  char Buffer[40];
-  return utohex_buffer(X, Buffer+40);
+  char Buffer[17];
+  return utohex_buffer(X, Buffer+17);
 }
 
 static inline std::string utostr_32(uint32_t X, bool isNeg = false) {
-  char Buffer[20];
-  char *BufPtr = Buffer+19;
+  char Buffer[11];
+  char *BufPtr = Buffer+11;
 
-  *BufPtr = 0;                  // Null terminate buffer...
   if (X == 0) *--BufPtr = '0';  // Handle special case...
 
   while (X) {
@@ -75,17 +74,13 @@ static inline std::string utostr_32(uint32_t X, bool isNeg = false) {
 
   if (isNeg) *--BufPtr = '-';   // Add negative sign...
 
-  return std::string(BufPtr);
+  return std::string(BufPtr, Buffer+11);
 }
 
 static inline std::string utostr(uint64_t X, bool isNeg = false) {
-  if (X == uint32_t(X))
-    return utostr_32(uint32_t(X), isNeg);
+  char Buffer[21];
+  char *BufPtr = Buffer+21;
 
-  char Buffer[40];
-  char *BufPtr = Buffer+39;
-
-  *BufPtr = 0;                  // Null terminate buffer...
   if (X == 0) *--BufPtr = '0';  // Handle special case...
 
   while (X) {
@@ -94,7 +89,7 @@ static inline std::string utostr(uint64_t X, bool isNeg = false) {
   }
 
   if (isNeg) *--BufPtr = '-';   // Add negative sign...
-  return std::string(BufPtr);
+  return std::string(BufPtr, Buffer+21);
 }