From c92330c18ce2f7015f0db88e4bfce3d253fa3c57 Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail@justinbogner.com>
Date: Wed, 7 May 2014 02:11:23 +0000
Subject: llvm-cov: Handle missing source files as GCOV does

If the source files referenced by a gcno file are missing, gcov
outputs a coverage file where every line is simply /*EOF*/.  This also
occurs for lines in the coverage that are past the end of a file that
is found.

This change mimics gcov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208149 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/tools/llvm-cov/Inputs/test_missing.cpp.gcov | 77 ++++++++++++++++++++++++
 test/tools/llvm-cov/Inputs/test_missing.h.gcov   |  6 ++
 test/tools/llvm-cov/Inputs/test_missing.output   |  8 +++
 test/tools/llvm-cov/llvm-cov.test                |  6 ++
 4 files changed, 97 insertions(+)
 create mode 100644 test/tools/llvm-cov/Inputs/test_missing.cpp.gcov
 create mode 100644 test/tools/llvm-cov/Inputs/test_missing.h.gcov
 create mode 100644 test/tools/llvm-cov/Inputs/test_missing.output

(limited to 'test/tools/llvm-cov')

diff --git a/test/tools/llvm-cov/Inputs/test_missing.cpp.gcov b/test/tools/llvm-cov/Inputs/test_missing.cpp.gcov
new file mode 100644
index 0000000000..1c138e4258
--- /dev/null
+++ b/test/tools/llvm-cov/Inputs/test_missing.cpp.gcov
@@ -0,0 +1,77 @@
+        -:    0:Source:srcdir/./nested_dir/../test.cpp
+        -:    0:Graph:test_paths.gcno
+        -:    0:Data:test_paths.gcda
+        -:    0:Runs:3
+        -:    0:Programs:1
+        -:    1:/*EOF*/
+        -:    2:/*EOF*/
+        -:    3:/*EOF*/
+        -:    4:/*EOF*/
+        -:    5:/*EOF*/
+        -:    6:/*EOF*/
+        -:    7:/*EOF*/
+        -:    8:/*EOF*/
+        -:    9:/*EOF*/
+12884901888:   10:/*EOF*/
+        -:   11:/*EOF*/
+    #####:   12:/*EOF*/
+        -:   13:/*EOF*/
+        -:   14:/*EOF*/
+    #####:   15:/*EOF*/
+        -:   16:/*EOF*/
+        -:   17:/*EOF*/
+        -:   18:/*EOF*/
+        3:   19:/*EOF*/
+        3:   20:/*EOF*/
+        -:   21:/*EOF*/
+        -:   22:/*EOF*/
+        -:   23:/*EOF*/
+    #####:   24:/*EOF*/
+    #####:   25:/*EOF*/
+        -:   26:/*EOF*/
+        -:   27:/*EOF*/
+       12:   28:/*EOF*/
+       12:   29:/*EOF*/
+       12:   30:/*EOF*/
+        -:   31:/*EOF*/
+        -:   32:/*EOF*/
+       21:   33:/*EOF*/
+       36:   34:/*EOF*/
+       18:   35:/*EOF*/
+        3:   36:/*EOF*/
+        -:   37:/*EOF*/
+        -:   38:/*EOF*/
+        3:   39:/*EOF*/
+        -:   40:/*EOF*/
+        3:   41:/*EOF*/
+        3:   42:/*EOF*/
+        3:   43:/*EOF*/
+        3:   44:/*EOF*/
+        3:   45:/*EOF*/
+        3:   46:/*EOF*/
+    #####:   47:/*EOF*/
+    #####:   48:/*EOF*/
+        -:   49:/*EOF*/
+        -:   50:/*EOF*/
+       66:   51:/*EOF*/
+       30:   52:/*EOF*/
+        -:   53:/*EOF*/
+        6:   54:/*EOF*/
+        6:   55:/*EOF*/
+        -:   56:/*EOF*/
+        -:   57:/*EOF*/
+        3:   58:/*EOF*/
+        3:   59:/*EOF*/
+        -:   60:/*EOF*/
+        9:   61:/*EOF*/
+        9:   62:/*EOF*/
+        -:   63:/*EOF*/
+       12:   64:/*EOF*/
+       12:   65:/*EOF*/
+       30:   66:/*EOF*/
+        -:   67:/*EOF*/
+        3:   68:/*EOF*/
+25769803782:   69:/*EOF*/
+12884901888:   70:/*EOF*/
+        -:   71:/*EOF*/
+        3:   72:/*EOF*/
diff --git a/test/tools/llvm-cov/Inputs/test_missing.h.gcov b/test/tools/llvm-cov/Inputs/test_missing.h.gcov
new file mode 100644
index 0000000000..d500e86196
--- /dev/null
+++ b/test/tools/llvm-cov/Inputs/test_missing.h.gcov
@@ -0,0 +1,6 @@
+        -:    0:Source:srcdir/./nested_dir/../test.h
+        -:    0:Graph:test_paths.gcno
+        -:    0:Data:test_paths.gcda
+        -:    0:Runs:3
+        -:    0:Programs:1
+        6:    1:/*EOF*/
diff --git a/test/tools/llvm-cov/Inputs/test_missing.output b/test/tools/llvm-cov/Inputs/test_missing.output
new file mode 100644
index 0000000000..ada0c36030
--- /dev/null
+++ b/test/tools/llvm-cov/Inputs/test_missing.output
@@ -0,0 +1,8 @@
+File 'srcdir/./nested_dir/../test.h'
+Lines executed:100.00% of 1
+srcdir/./nested_dir/../test.h:creating 'test.h.gcov'
+
+File 'srcdir/./nested_dir/../test.cpp'
+Lines executed:84.21% of 38
+srcdir/./nested_dir/../test.cpp:creating 'test.cpp.gcov'
+
diff --git a/test/tools/llvm-cov/llvm-cov.test b/test/tools/llvm-cov/llvm-cov.test
index 8f57d9a189..2345f8d51e 100644
--- a/test/tools/llvm-cov/llvm-cov.test
+++ b/test/tools/llvm-cov/llvm-cov.test
@@ -34,6 +34,12 @@ RUN: diff -aub test_objdir.h.gcov test.h.gcov
 # With gcov output disabled
 RUN: llvm-cov -n test.c | diff -u test_no_output.output -
 
+# Missing source files. This test is fragile, as it depends on being
+# run before we copy some sources into place in the next test.
+RUN: llvm-cov test_paths.cpp 2>/dev/null | diff -u test_missing.output -
+RUN: diff -aub test_missing.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_missing.h.gcov test.h.gcov
+
 # Preserve paths. This mangles the output filenames.
 RUN: mkdir -p %t/srcdir/nested_dir
 RUN: cp test.cpp test.h %t/srcdir
-- 
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