Slightly improve the code to derive target from program name to not
fault if no arguments are given.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134618 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/driver/driver.cpp b/tools/driver/driver.cpp
index db72da4..ca89826 100644
--- a/tools/driver/driver.cpp
+++ b/tools/driver/driver.cpp
@@ -327,9 +327,11 @@
std::string IgnoredError;
if (llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError)) {
- ArgVector.insert(&ArgVector[1],
- SaveStringInSet(SavedStrings, Prefix));
- ArgVector.insert(&ArgVector[1],
+ llvm::SmallVectorImpl<const char *>::iterator it = ArgVector.begin();
+ if (it != ArgVector.end())
+ ++it;
+ ArgVector.insert(it, SaveStringInSet(SavedStrings, Prefix));
+ ArgVector.insert(it,
SaveStringInSet(SavedStrings, std::string("-ccc-host-triple")));
}
}