Extend -Bprefix functionality and make it closer to gcc. If the "prefix"

is not a directory, Driver::GetProgramPath() routine does not try to append
the program name as a "path component" to it. It just joins the "prefix" with
the program name and checks the resulting path existence.

The patch reviewed by Rafael Espindola.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167114 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 6 deletions

diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index eeb59e854d..d71e731f39 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -1591,12 +1591,19 @@ std::string Driver::GetProgramPath(const char *Name,
   // attempting to use this prefix when looking for program paths.
   for (Driver::prefix_list::const_iterator it = PrefixDirs.begin(),
        ie = PrefixDirs.end(); it != ie; ++it) {
-    llvm::sys::Path P(*it);
-    P.appendComponent(TargetSpecificExecutable);
-    if (P.canExecute()) return P.str();
-    P.eraseComponent();
-    P.appendComponent(Name);
-    if (P.canExecute()) return P.str();
+    bool IsDirectory;
+    if (!llvm::sys::fs::is_directory(*it, IsDirectory) && IsDirectory) {
+      llvm::sys::Path P(*it);
+      P.appendComponent(TargetSpecificExecutable);
+      if (P.canExecute()) return P.str();
+      P.eraseComponent();
+      P.appendComponent(Name);
+      if (P.canExecute()) return P.str();
+    }
+    else {
+      llvm::sys::Path P(*it + Name);
+      if (P.canExecute()) return P.str();
+    }
   }
 
   const ToolChain::path_list &List = TC.getProgramPaths();