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author | Devang Patel <dpatel@apple.com> | 2009-09-02 21:22:09 +0000 |
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committer | Devang Patel <dpatel@apple.com> | 2009-09-02 21:22:09 +0000 |
commit | d9489cbb0cf933da9e2154a5336533d6254a5c30 (patch) | |
tree | 2095f4e178aa362d18c25b07a42f5209bead3a9d /lib/VMCore/LLVMContext.cpp | |
parent | 69d1c1aebf009e58157e233cd7f2338e654e8d05 (diff) | |
download | llvm-d9489cbb0cf933da9e2154a5336533d6254a5c30.tar.gz llvm-d9489cbb0cf933da9e2154a5336533d6254a5c30.tar.bz2 llvm-d9489cbb0cf933da9e2154a5336533d6254a5c30.tar.xz |
Use CallbackVH, instead of WeakVH, to hold MDNode elements.
Use FoldingSetNode to unique MDNodes in a context.
Use CallbackVH hooks to update context's MDNodeSet appropriately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80839 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore/LLVMContext.cpp')
-rw-r--r-- | lib/VMCore/LLVMContext.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/VMCore/LLVMContext.cpp b/lib/VMCore/LLVMContext.cpp index 1803a9a666..0ed21fb754 100644 --- a/lib/VMCore/LLVMContext.cpp +++ b/lib/VMCore/LLVMContext.cpp @@ -13,6 +13,7 @@ //===----------------------------------------------------------------------===// #include "llvm/LLVMContext.h" +#include "llvm/Metadata.h" #include "llvm/Constants.h" #include "llvm/Instruction.h" #include "llvm/Support/ManagedStatic.h" @@ -48,10 +49,10 @@ bool LLVMContext::RemoveDeadMetadata() { bool Changed = false; while (1) { - for (SmallPtrSet<const MDNode *, 8>::iterator - I = pImpl->MDNodes.begin(), - E = pImpl->MDNodes.end(); I != E; ++I) { - const MDNode *N = cast<MDNode>(*I); + for (FoldingSet<MDNode>::iterator + I = pImpl->MDNodeSet.begin(), + E = pImpl->MDNodeSet.end(); I != E; ++I) { + const MDNode *N = &(*I); if (N->use_empty()) DeadMDNodes.push_back(N); } |