[llvm] r321225 - [orc][cmake] Check if 8 byte atomics require libatomic for unittest

[Simon Dardis via llvm-commits]

Author: sdardis
Date: Wed Dec 20 14:26:41 2017
New Revision: 321225

URL: http://llvm.org/viewvc/llvm-project?rev=321225&view=rev
Log:
[orc][cmake] Check if 8 byte atomics require libatomic for unittest

rL319838 introduced SymbolStringPool which uses 8 byte atomics for
reference counters. On systems which do not support such atomics
natively such as MIPS32, explicitly add libatomic as one of the
libraries for SymbolStringPool's unittest.

Reviewers: lhames, beanz

Differential Revision: https://reviews.llvm.org/D41010

Modified:
    llvm/trunk/unittests/ExecutionEngine/Orc/CMakeLists.txt

Modified: llvm/trunk/unittests/ExecutionEngine/Orc/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ExecutionEngine/Orc/CMakeLists.txt?rev=321225&r1=321224&r2=321225&view=diff
==============================================================================
--- llvm/trunk/unittests/ExecutionEngine/Orc/CMakeLists.txt (original)
+++ llvm/trunk/unittests/ExecutionEngine/Orc/CMakeLists.txt Wed Dec 20 14:26:41 2017
@@ -24,4 +24,9 @@ add_llvm_unittest(OrcJITTests
   SymbolStringPoolTest.cpp
   )
 
-target_link_libraries(OrcJITTests PRIVATE ${LLVM_PTHREAD_LIB})
+set(ORC_JIT_TEST_LIBS ${LLVM_PTHREAD_LIB})
+if(NOT HAVE_CXX_ATOMICS64_WITHOUT_LIB)
+  list(APPEND ORC_JIT_TEST_LIBS atomic)
+endif()
+
+target_link_libraries(OrcJITTests PRIVATE ${ORC_JIT_TEST_LIBS})