CommandLine: Exit successfully for -version and -help

Tools that use the CommandLine library currently exit with an error
when invoked with -version or -help. This is unusual and non-standard,
so we'll fix them to exit successfully instead.

I don't expect that anyone relies on the current behaviour, so this
should be a fairly safe change.

llvm-svn: 202530

2 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
index e1317a25986..9e807265878 100644
--- a/llvm/lib/Support/CommandLine.cpp
+++ b/llvm/lib/Support/CommandLine.cpp
@@ -1496,7 +1496,7 @@ public:
     MoreHelp->clear();
 
     // Halt the program since help information was printed
-    exit(1);
+    exit(0);
   }
 };
 
@@ -1732,7 +1732,7 @@ public:
 
     if (OverrideVersionPrinter != 0) {
       (*OverrideVersionPrinter)();
-      exit(1);
+      exit(0);
     }
     print();
 
@@ -1746,7 +1746,7 @@ public:
         (*I)();
     }
 
-    exit(1);
+    exit(0);
   }
 };
 } // End anonymous namespace
diff --git a/llvm/test/CodeGen/Generic/print-after.ll b/llvm/test/CodeGen/Generic/print-after.ll
index 7505907ef77..1b7ce84a8a5 100644
--- a/llvm/test/CodeGen/Generic/print-after.ll
+++ b/llvm/test/CodeGen/Generic/print-after.ll
@@ -1,4 +1,4 @@
-; RUN: not llc --help-hidden 2>&1 | FileCheck %s
+; RUN: llc --help-hidden 2>&1 | FileCheck %s
 
 ; CHECK: -print-after
 ; CHECK-NOT: -print-after-all