From 5cc966a6c1258e007d90dd0b92a8c146087de9a9 Mon Sep 17 00:00:00 2001 From: Jeffrey Yasskin Date: Sat, 12 Dec 2009 05:58:14 +0000 Subject: Fix available_externally linkage for globals. It's probably still not supported by emitGlobals, but I don't have a test case for that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91208 91177308-0d34-0410-b5e6-96231b3b80d8 --- unittests/ExecutionEngine/JIT/JITTest.cpp | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'unittests/ExecutionEngine') diff --git a/unittests/ExecutionEngine/JIT/JITTest.cpp b/unittests/ExecutionEngine/JIT/JITTest.cpp index 12c6b67d98..bbf3460387 100644 --- a/unittests/ExecutionEngine/JIT/JITTest.cpp +++ b/unittests/ExecutionEngine/JIT/JITTest.cpp @@ -534,6 +534,31 @@ TEST_F(JITTest, FunctionPointersOutliveTheirCreator) { #endif } +} // anonymous namespace +// This variable 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_AvailableExternallyGlobal; +int32_t JITTest_AvailableExternallyGlobal = 42; +namespace { + +TEST_F(JITTest, AvailableExternallyGlobalIsntEmitted) { + TheJIT->DisableLazyCompilation(true); + LoadAssembly("@JITTest_AvailableExternallyGlobal = " + " available_externally global i32 7 " + " " + "define i32 @loader() { " + " %result = load i32* @JITTest_AvailableExternallyGlobal " + " ret i32 %result " + "} "); + Function *loaderIR = M->getFunction("loader"); + + int32_t (*loader)() = reinterpret_cast( + (intptr_t)TheJIT->getPointerToFunction(loaderIR)); + EXPECT_EQ(42, loader()) << "func should return 42 from the external global," + << " 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. -- cgit v1.2.3