Return -1 only on failure to execute a program.

Also fix some comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109499 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 1 deletions

diff --git a/include/llvm/CompilerDriver/Action.h b/include/llvm/CompilerDriver/Action.h
index 4ff6fd9c02..f2b79655f6 100644
--- a/include/llvm/CompilerDriver/Action.h
+++ b/include/llvm/CompilerDriver/Action.h
@@ -43,7 +43,7 @@ namespace llvmc {
     }
     bool IsConstructed () { return (Command_.size() != 0);}
 
-    /// Execute - Executes the represented action.
+    /// Execute - Executes the command. Returns -1 on error.
     int Execute () const;
     bool StopCompilation () const { return StopCompilation_; }
     const std::string& OutFile() { return OutFile_; }