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Recurring LLVM debug info fix

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This commit is contained in:
Andrey Guskov
2015-04-16 19:31:16 +03:00
parent f62ad11fb0
commit 189e892b96
3 changed files with 62 additions and 18 deletions
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28
module.cpp
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@@ -172,7 +172,7 @@ lStripUnusedDebugInfo(llvm::Module *module) {
return;
#if defined (LLVM_3_2) || defined (LLVM_3_3)|| defined (LLVM_3_4)|| defined (LLVM_3_5)
std::set<llvm::Value *> SPall;
#else // LLVN 3.6++
#else // LLVM 3.6++
std::set<llvm::Metadata *> SPall;
#endif
// OK, now we are to determine which functions actually survived the
@@ -232,14 +232,15 @@ lStripUnusedDebugInfo(llvm::Module *module) {
if (llvm::NamedMDNode *cuNodes = module->getNamedMetadata("llvm.dbg.cu")) {
for (unsigned i = 0, ie = cuNodes->getNumOperands(); i != ie; ++i) {
llvm::MDNode *cuNode = cuNodes->getOperand(i);
#if defined (LLVM_3_2) || defined (LLVM_3_3)|| defined (LLVM_3_4)|| defined (LLVM_3_5) || (LLVM_3_6)
#if defined(LLVM_3_2) || defined(LLVM_3_3) || defined(LLVM_3_4) || defined(LLVM_3_5) || defined(LLVM_3_6)
llvm::DICompileUnit cu(cuNode);
llvm::DIArray subprograms = cu.getSubprograms();
#else // LLVM 3.7+
llvm::DICompileUnit cu(llvm::cast<llvm::MDCompileUnit>(cuNode));
llvm::DIArray subprograms = cu->getSubprograms();
#endif
llvm::DIArray subprograms = cu.getSubprograms();
#if defined (LLVM_3_2) || defined (LLVM_3_3)|| defined (LLVM_3_4)|| defined (LLVM_3_5) || (LLVM_3_6)
#if defined(LLVM_3_2) || defined(LLVM_3_3) || defined(LLVM_3_4) || defined(LLVM_3_5) || defined(LLVM_3_6)
if (subprograms.getNumElements() == 0)
#else // LLVM 3.7+
if (subprograms.size() == 0)
@@ -255,7 +256,7 @@ lStripUnusedDebugInfo(llvm::Module *module) {
#endif
// determine what functions of those extracted belong to the unit
#if defined (LLVM_3_2) || defined (LLVM_3_3)|| defined (LLVM_3_4)|| defined (LLVM_3_5) || (LLVM_3_6)
#if defined(LLVM_3_2) || defined(LLVM_3_3) || defined(LLVM_3_4) || defined(LLVM_3_5) || defined(LLVM_3_6)
for (unsigned j = 0, je = subprograms.getNumElements(); j != je; ++j)
#else // LLVM 3.7+
for (unsigned j = 0, je = subprograms.size(); j != je; ++j)
@@ -274,7 +275,7 @@ lStripUnusedDebugInfo(llvm::Module *module) {
Debug(SourcePos(), "%d / %d functions left in module with debug "
"info.", (int)usedSubprograms.size(),
#if defined (LLVM_3_2) || defined (LLVM_3_3)|| defined (LLVM_3_4)|| defined (LLVM_3_5) || (LLVM_3_6)
#if defined(LLVM_3_2) || defined(LLVM_3_3) || defined(LLVM_3_4) || defined(LLVM_3_5) || defined(LLVM_3_6)
(int)subprograms.getNumElements());
#else // LLVM 3.7+
(int)subprograms.size());
@@ -332,22 +333,27 @@ lStripUnusedDebugInfo(llvm::Module *module) {
m->diBuilder->getOrCreateArray(llvm::ArrayRef<llvm::Value *>(usedSubprograms));
cuNode->replaceOperandWith(9, replNode);
#else // LLVM 3.6+
llvm::DIArray nodeSPs = cu.getSubprograms();
// And now we can go and stuff it into the unit with some
// confidence...
#if defined(LLVM_3_6)
llvm::DIArray nodeSPs = cu.getSubprograms();
Assert(nodeSPs.getNumElements() == subprograms.getNumElements());
for (int i = 0; i < (int)nodeSPs.getNumElements(); ++i)
Assert(nodeSPs.getElement(i) == subprograms.getElement(i));
// And now we can go and stuff it into the unit with some
// confidence...
llvm::MDNode *replNode = llvm::MDNode::get(module->getContext(),
llvm::ArrayRef<llvm::Metadata *>(usedSubprograms));
cu.replaceSubprograms(llvm::DIArray(replNode));
#else // LLVM 3.7+
llvm::DIArray nodeSPs = cu->getSubprograms();
Assert(nodeSPs.size() == subprograms.size());
for (int i = 0; i < (int)nodeSPs.size(); ++i)
Assert(nodeSPs [i] == subprograms [i]);
cu.replaceSubprograms(llvm::MDTuple::get(cu->getContext(),
llvm::ArrayRef<llvm::Metadata *>(usedSubprograms)));
// And now we can go and stuff it into the unit with some
// confidence...
cu->replaceSubprograms(llvm::MDTuple::get(cu->getContext(),
llvm::ArrayRef<llvm::Metadata *>(usedSubprograms)));
#endif
#endif
}