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Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when

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promoting allocas to SSA variables. Fixes <rdar://problem/9479036>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131953 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich
2011-05-24 03:10:43 +00:00
parent e665798097
commit c827939046
9 changed files with 125 additions and 27 deletions
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12
lib/Transforms/Utils/PromoteMemoryToRegister.cpp
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@ -100,18 +100,6 @@ bool llvm::isAllocaPromotable(const AllocaInst *AI) {
return true;
}
/// FindAllocaDbgDeclare - Finds the llvm.dbg.declare intrinsic describing the
/// alloca 'V', if any.
static DbgDeclareInst *FindAllocaDbgDeclare(Value *V) {
if (MDNode *DebugNode = MDNode::getIfExists(V->getContext(), V))
for (Value::use_iterator UI = DebugNode->use_begin(),
E = DebugNode->use_end(); UI != E; ++UI)
if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(*UI))
return DDI;
return 0;
}
namespace {
struct AllocaInfo;