Don't codegen available_externally functions. Fixes http://llvm.org/PR5735.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91626 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/ExecutionEngine/JIT/JITTest.cpp b/unittests/ExecutionEngine/JIT/JITTest.cpp
index bbf3460..da4dfc4 100644
--- a/unittests/ExecutionEngine/JIT/JITTest.cpp
+++ b/unittests/ExecutionEngine/JIT/JITTest.cpp
@@ -559,6 +559,35 @@
<< " not 7 from the IR version.";
}
+} // anonymous namespace
+// This function is intentionally defined differently in the statically-compiled
+// program from the IR input to the JIT to assert that the JIT doesn't use its
+// definition.
+extern "C" int32_t JITTest_AvailableExternallyFunction() {
+ return 42;
+}
+namespace {
+
+TEST_F(JITTest, AvailableExternallyFunctionIsntCompiled) {
+ TheJIT->DisableLazyCompilation(true);
+ LoadAssembly("define available_externally i32 "
+ " @JITTest_AvailableExternallyFunction() { "
+ " ret i32 7 "
+ "} "
+ " "
+ "define i32 @func() { "
+ " %result = tail call i32 "
+ " @JITTest_AvailableExternallyFunction() "
+ " ret i32 %result "
+ "} ");
+ Function *funcIR = M->getFunction("func");
+
+ int32_t (*func)() = reinterpret_cast<int32_t(*)()>(
+ (intptr_t)TheJIT->getPointerToFunction(funcIR));
+ EXPECT_EQ(42, func()) << "func should return 42 from the static version,"
+ << " not 7 from the IR version.";
+}
+
// This code is copied from JITEventListenerTest, but it only runs once for all
// the tests in this directory. Everything seems fine, but that's strange
// behavior.