[ExecutionEngine] FindFunctionNamed: Skip declarations

Summary:
Basically all other methods that look up functions by name skip them if they are mere declarations.
Do the same in FindFunctionNamed.

Reviewers: lhames

Reviewed By: lhames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7068

llvm-svn: 227227

1 files changed, 19 insertions, 0 deletions

diff --git a/llvm/unittests/ExecutionEngine/MCJIT/MCJITMultipleModuleTest.cpp b/llvm/unittests/ExecutionEngine/MCJIT/MCJITMultipleModuleTest.cpp
index b0d1bb39c7f..da6e25a3d51 100644
--- a/llvm/unittests/ExecutionEngine/MCJIT/MCJITMultipleModuleTest.cpp
+++ b/llvm/unittests/ExecutionEngine/MCJIT/MCJITMultipleModuleTest.cpp
@@ -392,4 +392,23 @@ TEST_F(MCJITMultipleModuleTest, cross_module_dependency_case3) {
   ptr = TheJIT->getFunctionAddress(FB2->getName().str());
   checkAccumulate(ptr);
 }
+
+// Test that FindFunctionNamed finds the definition of
+// a function in the correct module. We check two functions
+// in two different modules, to make sure that for at least
+// one of them MCJIT had to ignore the extern declaration.
+TEST_F(MCJITMultipleModuleTest, FindFunctionNamed_test) {
+  SKIP_UNSUPPORTED_PLATFORM;
+
+  std::unique_ptr<Module> A, B;
+  Function *FA, *FB1, *FB2;
+  createCrossModuleRecursiveCase(A, FA, B, FB1, FB2);
+
+  createJIT(std::move(A));
+  TheJIT->addModule(std::move(B));
+
+  EXPECT_EQ(FA, TheJIT->FindFunctionNamed(FA->getName().data()));
+  EXPECT_EQ(FB1, TheJIT->FindFunctionNamed(FB1->getName().data()));
+}
+
 }