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ExecutionEngine::clearGlobalMappingsFromModule failed to remove reverse

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mappings, which could cause errors and assert-failures.  This patch fixes that,
adds a test, and refactors the global-mapping-removal code into a single place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83678 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jeffrey Yasskin
2009-10-09 22:10:27 +00:00
parent 769b7f8953
commit c89d27a440
3 changed files with 42 additions and 16 deletions
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20
unittests/ExecutionEngine/ExecutionEngineTest.cpp
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@@ -93,4 +93,24 @@ TEST_F(ExecutionEngineTest, ReverseGlobalMapping) {
<< " now-free address.";
}
TEST_F(ExecutionEngineTest, ClearModuleMappings) {
GlobalVariable *G1 =
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
int32_t Mem1 = 3;
Engine->addGlobalMapping(G1, &Mem1);
EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem1));
Engine->clearGlobalMappingsFromModule(M);
EXPECT_EQ(NULL, Engine->getGlobalValueAtAddress(&Mem1));
GlobalVariable *G2 =
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global2");
// After clearing the module mappings, we can assign a new GV to the
// same address.
Engine->addGlobalMapping(G2, &Mem1);
EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem1));
}
}