[ELF] dont compute symbolname size in every loop

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177903 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Object/ELF.h b/include/llvm/Object/ELF.h
index 1a4496dd967b5252f8af8dbf17c91036d8d3c10c..b2488ac9af2249a1d640c7d9dbc1cc0c7a687b3d 100644 (file)
--- a/include/llvm/Object/ELF.h
+++ b/include/llvm/Object/ELF.h
@@ -2709,7 +2709,7 @@ static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
 /// REF : http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash
 static inline unsigned elf_hash(StringRef &symbolName) {
   unsigned h = 0, g;
-  for (unsigned i = 0; i < symbolName.size(); i++) {
+  for (unsigned i = 0, j = symbolName.size(); i < j; i++) {
     h = (h << 4) + symbolName[i];
     g = h & 0xf0000000L;
     if (g != 0)