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authorJames Henderson <jh7370@my.bristol.ac.uk>2019-03-12 15:42:38 +0000
committerJames Henderson <jh7370@my.bristol.ac.uk>2019-03-12 15:42:38 +0000
commitb69a50115bd5db998dd972d2017b2332d4033b5c (patch)
treecf32bb22994f7bcd2b905307cf1a1a275cbd21f7
parent662c043628c1dfe9765f3f323cc57931c6d464d4 (diff)
downloadbcm5719-llvm-b69a50115bd5db998dd972d2017b2332d4033b5c.tar.gz
bcm5719-llvm-b69a50115bd5db998dd972d2017b2332d4033b5c.zip
[llvm-cxxfilt]Add test to show that empty lines can be handled
I recently discovered a bug in llvm-cxxfilt introduced in r353743 but was fixed later incidentally due to r355031. Specifically, llvm-cxxfilt was attempting to call .back() on an empty string any time there was a new line in the input. This was causing a crash in my debug builds only. This patch simply adds a test that explicitly tests that llvm-cxxfilt handles empty lines correctly. It may pass under release builds under the broken behaviour, but it fails at least in debug builds. Reviewed by: mattd Differential Revision: https://reviews.llvm.org/D58785 llvm-svn: 355929
-rw-r--r--llvm/test/tools/llvm-cxxfilt/empty-line.test9
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-cxxfilt/empty-line.test b/llvm/test/tools/llvm-cxxfilt/empty-line.test
new file mode 100644
index 00000000000..1b62ee0812f
--- /dev/null
+++ b/llvm/test/tools/llvm-cxxfilt/empty-line.test
@@ -0,0 +1,9 @@
+# Show that llvm-cxxfilt can handle empty lines in the input.
+RUN: echo "" > %t
+RUN: echo "_Z3foov" >> %t
+RUN: echo "" >> %t
+RUN: llvm-cxxfilt < %t | FileCheck %s
+
+CHECK: {{^$}}
+CHECK-NEXT: foo()
+CHECK-EMPTY:
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