Driver: Ignore empty arguments.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66858 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index c8750f7..4fc03ce 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -45,6 +45,16 @@
unsigned Index = 0, End = ArgEnd - ArgBegin;
while (Index < End) {
+ // gcc's handling of empty arguments doesn't make
+ // sense, but this is not a common use case. :)
+ //
+ // We just ignore them here (note that other things may
+ // still take them as arguments).
+ if (Args->getArgString(Index)[0] == '\0') {
+ ++Index;
+ continue;
+ }
+
unsigned Prev = Index;
Arg *A = getOpts().ParseOneArg(*Args, Index, End);
if (A) {
@@ -209,7 +219,7 @@
return false;
}
- if (Arg *A = Args.getLastArg(options::OPT_print_libgcc_file_name)) {
+ if (Args.hasArg(options::OPT_print_libgcc_file_name)) {
llvm::outs() << GetProgramPath("libgcc.a").toString() << "\n";
return false;
}