[PATCH] D15705: Adding a scripted test for PR25717

[Yunzhong Gao via cfe-commits]

ygao updated this revision to Diff 45784.

http://reviews.llvm.org/D15705

Files:
  test/Preprocessor/bigoutput.c
  test/lit.cfg

Index: test/lit.cfg
===================================================================
--- test/lit.cfg
+++ test/lit.cfg
@@ -491,4 +491,9 @@
 if use_gmalloc:
      config.environment.update({'DYLD_INSERT_LIBRARIES' : gmalloc_path_str})
 
+# Check if we should allow outputs to console.
+run_console_tests = int(lit_config.params.get('enable_console', '0'))
+if run_console_tests != 0:
+  config.available_features.add('console')
+
 lit.util.usePlatformSdkOnDarwin(config, lit_config)
Index: test/Preprocessor/bigoutput.c
===================================================================
--- test/Preprocessor/bigoutput.c
+++ test/Preprocessor/bigoutput.c
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -E -x c %s > /dev/tty
+// The original bug requires UNIX line endings to trigger.
+// The original bug triggers only when outputting directly to console.
+// REQUIRES: console
+
+// Make sure clang does not crash during preprocessing
+
+#define M0 extern int x;
+#define M2  M0  M0  M0  M0
+#define M4  M2  M2  M2  M2
+#define M6  M4  M4  M4  M4
+#define M8  M6  M6  M6  M6
+#define M10 M8  M8  M8  M8
+#define M12 M10 M10 M10 M10
+#define M14 M12 M12 M12 M12
+
+M14


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