Indicate success for simple options when clang called with -cc1.

Patch by David Wiberg.

llvm-svn: 187888

2 files changed, 7 insertions, 3 deletions

diff --git a/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp b/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
index 53f373d..2f6d4b2 100644
--- a/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
+++ b/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
@@ -183,7 +183,7 @@ bool clang::ExecuteCompilerInvocation(CompilerInstance *Clang) {
     Opts->PrintHelp(llvm::outs(), "clang -cc1",
                     "LLVM 'Clang' Compiler: http://clang.llvm.org",
                     /*Include=*/ driver::options::CC1Option, /*Exclude=*/ 0);
-    return 0;
+    return true;
   }
 
   // Honor -version.
@@ -191,7 +191,7 @@ bool clang::ExecuteCompilerInvocation(CompilerInstance *Clang) {
   // FIXME: Use a better -version message?
   if (Clang->getFrontendOpts().ShowVersion) {
     llvm::cl::PrintVersionMessage();
-    return 0;
+    return true;
   }
 
   // Load any requested plugins.
@@ -223,7 +223,7 @@ bool clang::ExecuteCompilerInvocation(CompilerInstance *Clang) {
   // This should happen AFTER plugins have been loaded!
   if (Clang->getAnalyzerOpts()->ShowCheckerHelp) {
     ento::printCheckerHelp(llvm::outs(), Clang->getFrontendOpts().Plugins);
-    return 0;
+    return true;
   }
 #endif
 
diff --git a/clang/test/Frontend/cc1-return-codes.c b/clang/test/Frontend/cc1-return-codes.c
new file mode 100644
index 0000000..da329b9
--- /dev/null
+++ b/clang/test/Frontend/cc1-return-codes.c
@@ -0,0 +1,4 @@
+// cc1 immediate arguments (arguments which displays information and exits)
+// shall exit indicating success (return code 0)
+// RUN: %clang -cc1 -help
+// RUN: %clang -cc1 -version