IR: Delete GenericDwarfNode during teardown

Fix a leak in `LLVMContextImpl` teardown that the leak sanitizer tracked
down [1].  I've just switched to automatic dispatch here (since I'll
inevitably forget again with the next class).

[1]: http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/811/steps/check-llvm%20asan/logs/stdio

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226536 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-01-20 01:18:32 +00:00
parent 022707e65a
commit 47ddb76984

View File

@ -78,10 +78,10 @@ LLVMContextImpl::~LLVMContextImpl() {
// unnecessary RAUW when nodes are still unresolved.
for (auto *I : DistinctMDNodes)
I->dropAllReferences();
for (auto *I : MDTuples)
I->dropAllReferences();
for (auto *I : MDLocations)
#define HANDLE_MDNODE_LEAF(CLASS) \
for (auto *I : CLASS##s) \
I->dropAllReferences();
#include "llvm/IR/Metadata.def"
// Also drop references that come from the Value bridges.
for (auto &Pair : ValuesAsMetadata)
@ -92,10 +92,10 @@ LLVMContextImpl::~LLVMContextImpl() {
// Destroy MDNodes.
for (MDNode *I : DistinctMDNodes)
I->deleteAsSubclass();
for (MDTuple *I : MDTuples)
delete I;
for (MDLocation *I : MDLocations)
#define HANDLE_MDNODE_LEAF(CLASS) \
for (CLASS *I : CLASS##s) \
delete I;
#include "llvm/IR/Metadata.def"
// Free the constants. This is important to do here to ensure that they are
// freed before the LeakDetector is torn down.