Prefer StringRef::startswith to the strncmp/strlen contraption.
This may be slightly more efficient and is definitely more readable.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165217 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/OptTable.cpp b/lib/Driver/OptTable.cpp
index 257f353..e108106 100644
--- a/lib/Driver/OptTable.cpp
+++ b/lib/Driver/OptTable.cpp
@@ -159,10 +159,11 @@
// FIXME: This is searching much more than necessary, but I am
// blanking on the simplest way to make it fast. We can solve this
// problem when we move to TableGen.
+ StringRef StrRef(Str);
for (; Start != End; ++Start) {
// Scan for first option which is a proper prefix.
for (; Start != End; ++Start)
- if (strncmp(Str, Start->Name, strlen(Start->Name)) == 0)
+ if (StrRef.startswith(Start->Name))
break;
if (Start == End)
break;