opening "-" automatically yields stdout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54863 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index e47bccd..a4dc797 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -34,6 +34,13 @@
/// information about the error is put into ErrorInfo, and the stream should
/// be immediately destroyed.
raw_fd_ostream::raw_fd_ostream(const char *Filename, std::string &ErrorInfo) {
+ // Handle "-" as stdout.
+ if (Filename[0] == '-' && Filename[1] == 0) {
+ FD = STDOUT_FILENO;
+ ShouldClose = false;
+ return;
+ }
+
FD = open(Filename, O_WRONLY|O_CREAT|O_TRUNC, 0644);
if (FD < 0) {
ErrorInfo = "Error opening output file '" + std::string(Filename) + "'";