vendor/llvm/llvm-trunk-r300422

1 files changed, 16 insertions, 0 deletions

diff --git a/test/Other/writing-to-stdout.ll b/test/Other/writing-to-stdout.ll
new file mode 100644
index 000000000000..e3dee782ce69
--- /dev/null
+++ b/test/Other/writing-to-stdout.ll
@@ -0,0 +1,16 @@
+; REQUIRES: default_triple
+
+; Often LLVM tools use "-" to indicate that output should be written to stdout
+; instead of a file. This behaviour is implemented by the raw_fd_ostream class.
+; This test verifies that when doing so multiple times we don't try to access a
+; closed STDOUT_FILENO. The exact options used in this test are unimportant, as
+; long as they write to stdout using raw_fd_ostream.
+; RUN: llc %s -o=- -pass-remarks-output=- -filetype=asm | FileCheck %s
+; foobar should appear as a function somewhere in the assembly file.
+; CHECK: foobar
+; !Analysis appears at the start of pass-remarks-output.
+; CHECK: !Analysis
+
+define void @foobar() {
+  ret void
+}