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Make the ExecutionEngine automatically remove global mappings on when their

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GlobalValue is destroyed.  Function destruction still leaks machine code and
can crash on leaked stubs, but this is some progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83987 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jeffrey Yasskin
2009-10-13 17:42:08 +00:00
parent 2d175064ab
commit 4c5b23b24f
3 changed files with 104 additions and 51 deletions
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13
unittests/ExecutionEngine/ExecutionEngineTest.cpp
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@ -113,4 +113,17 @@ TEST_F(ExecutionEngineTest, ClearModuleMappings) {
EXPECT_EQ(G2, Engine->getGlobalValueAtAddress(&Mem1));
}
TEST_F(ExecutionEngineTest, DestructionRemovesGlobalMapping) {
GlobalVariable *G1 =
NewExtGlobal(Type::getInt32Ty(getGlobalContext()), "Global1");
int32_t Mem1 = 3;
Engine->addGlobalMapping(G1, &Mem1);
// Make sure the reverse mapping is enabled.
EXPECT_EQ(G1, Engine->getGlobalValueAtAddress(&Mem1));
// When the GV goes away, the ExecutionEngine should remove any
// mappings that refer to it.
G1->eraseFromParent();
EXPECT_EQ(NULL, Engine->getGlobalValueAtAddress(&Mem1));
}
}