Driver: Lookup program names using llvm::sys::Program::FindProgramByName
if our usual methods fail. This isn't necessary for running the tool,
but improves the accuracy of logging output.
Also, have GCC tools lookup gcc program path.
llvm-svn: 67243
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 6c0668b..85debe8 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -26,6 +26,7 @@
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Path.h"
+#include "llvm/System/Program.h"
#include "InputInfo.h"
@@ -879,6 +880,11 @@
if (P.exists())
return P;
+ // Search path to increase accuracy of logging output.
+ P = llvm::sys::Program::FindProgramByName(Name);
+ if (!P.empty())
+ return P;
+
return llvm::sys::Path(Name);
}