From 6f3a2e239041e4daa5279631b70932c6d5e72ed6 Mon Sep 17 00:00:00 2001
From: Kai Tietz <ktietz@redhat.com>
Date: Wed, 27 Jun 2012 16:03:08 +0200
Subject: re PR preprocessor/37215 (ICE on 'gcc -E -dM -fpreprocessed - <
 /dev/null')

        PR preprocessor/37215
        * c-ppoutput.c (preprocess_file): Check for nonempty buffer.

From-SVN: r189016
---
 gcc/c-family/c-ppoutput.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'gcc/c-family/c-ppoutput.c')

diff --git a/gcc/c-family/c-ppoutput.c b/gcc/c-family/c-ppoutput.c
index df46ce4..862d15d 100644
--- a/gcc/c-family/c-ppoutput.c
+++ b/gcc/c-family/c-ppoutput.c
@@ -86,7 +86,7 @@ preprocess_file (cpp_reader *pfile)
 {
   /* A successful cpp_read_main_file guarantees that we can call
      cpp_scan_nooutput or cpp_get_token next.  */
-  if (flag_no_output)
+  if (flag_no_output && pfile->buffer)
     {
       /* Scan -included buffers, then the main file.  */
       while (pfile->buffer->prev)
-- 
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