contrib/gcc-changelog: Detect if same file appears twice

contrib/ChangeLog:

	* gcc-changelog/git_commit.py (Error.__repr__): Add space after the colon.
	(GitCommit.check_mentioned_files): Check whether the same file has been
	specified multiple times.
	* gcc-changelog/test_email.py (TestGccChangelog.test_multi_same_file): New.
	* gcc-changelog/test_patches.txt (0001-OpenMP-Fix-SIMT): New test.

contrib/gcc-changelog/git_commit.py

@@ -200,7 +200,7 @@ class Error:
     def __repr__(self):
         s = self.message
         if self.line:
-            s += ':"%s"' % self.line
+            s += ': "%s"' % self.line
         return s
 
 
@@ -629,7 +629,12 @@ class GitCommit:
             assert not entry.folder.endswith('/')
             for file in entry.files:
                 if not self.is_changelog_filename(file):
-                    mentioned_files.add(os.path.join(entry.folder, file))
+                    item = os.path.join(entry.folder, file)
+                    if item in mentioned_files:
+                        msg = 'same file specified multiple times'
+                        self.errors.append(Error(msg, file))
+                    else:
+                        mentioned_files.add(item)
             for pattern in entry.file_patterns:
                 mentioned_patterns.append(os.path.join(entry.folder, pattern))
 

contrib/gcc-changelog/test_email.py

@@ -424,3 +424,7 @@ class TestGccChangelog(unittest.TestCase):
     def test_long_filenames(self):
         email = self.from_patch_glob('0001-long-filenames')
         assert not email.errors
+
+    def test_multi_same_file(self):
+        email = self.from_patch_glob('0001-OpenMP-Fix-SIMT')
+        assert email.errors[0].message == 'same file specified multiple times'

contrib/gcc-changelog/test_patches.txt

@@ -3546,3 +3546,32 @@ index 5ad82db1def..53b15f32516 100644
 @@ -1 +1,2 @@
  
 +
+
+=== 0001-OpenMP-Fix-SIMT ===
+From 33b647956caa977d1ae489f9baed9cef70b4f382 Mon Sep 17 00:00:00 2001
+From: Tobias Burnus <tobias@codesourcery.com>
+Date: Fri, 7 May 2021 12:11:51 +0200
+Subject: [PATCH] OpenMP: Fix SIMT for complex/float reduction with && and ||
+
+libgomp/ChangeLog:
+
+	* testsuite/libgomp.c-c++-common/reduction-5.c: New test, testing
+	complex/floating-point || + && reduction with 'omp target'.
+	* testsuite/libgomp.c-c++-common/reduction-5.c: Likewise.
+---
+diff --git a/libgomp/testsuite/libgomp.c-c++-common/reduction-5.c b/libgomp/testsuite/libgomp.c-c++-common/reduction-5.c
+new file mode 100644
+index 00000000000..21540512e23
+--- /dev/null
++++ b/libgomp/testsuite/libgomp.c-c++-common/reduction-5.c
+@@ -0,0 +1,1 @@
++
+diff --git a/libgomp/testsuite/libgomp.c-c++-common/reduction-6.c b/libgomp/testsuite/libgomp.c-c++-common/reduction-6.c
+new file mode 100644
+index 00000000000..21540512e23
+--- /dev/null
++++ b/libgomp/testsuite/libgomp.c-c++-common/reduction-6.c
+@@ -0,0 +1,1 @@
++
+-- 
+2.25.1