[llvm] r254814 - [MC] Add a test for state reset in MCMachOStreamer

[Keno Fischer via llvm-commits]

Author: kfischer
Date: Fri Dec  4 19:02:53 2015
New Revision: 254814

URL: http://llvm.org/viewvc/llvm-project?rev=254814&view=rev
Log:
[MC] Add a test for state reset in MCMachOStreamer

This was fixed in r254751, but untestable until r254774, which
added the necessary command line flag to llc. Add a test now
to make sure this doesn't regress again.

Added:
    llvm/trunk/test/MC/MachO/empty-twice.ll

Added: llvm/trunk/test/MC/MachO/empty-twice.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/MachO/empty-twice.ll?rev=254814&view=auto
==============================================================================
--- llvm/trunk/test/MC/MachO/empty-twice.ll (added)
+++ llvm/trunk/test/MC/MachO/empty-twice.ll Fri Dec  4 19:02:53 2015
@@ -0,0 +1,12 @@
+; Check that there is no persistent state in the MachO emitter that crashes
+; us when reusing the pass manager.
+; RUN: llc -mtriple=x86_64-apple-darwin -compile-twice -filetype=obj %s -o -
+
+; Force the creation of a DWARF section
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "LLVM", isOptimized: true)
+!1 = !DIFile(filename: "<stdin>", directory: "/")
+!3 = !{i32 2, !"Dwarf Version", i32 4}
+!4 = !{i32 2, !"Debug Info Version", i32 3}