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mem2reg erases the dbg.declare intrinsics that it converts to dbg.val intrinsics

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94763 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Victor Hernandez 2010-01-29 00:01:35 +00:00
parent 4533cac557
commit 1897ed3d37
1 changed files with 13 additions and 3 deletions
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16
lib/Transforms/Utils/PromoteMemoryToRegister.cpp
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@ -373,9 +373,11 @@ void PromoteMem2Reg::run() {
// Finally, after the scan, check to see if the store is all that is left.
if (Info.UsingBlocks.empty()) {
// Record debuginfo for the store before removing it.
if (DbgDeclareInst *DDI = Info.DbgDeclare)
// Record debuginfo for the store and remove the declaration's debuginfo.
if (DbgDeclareInst *DDI = Info.DbgDeclare) {
ConvertDebugDeclareToDebugValue(DDI, Info.OnlyStore);
DDI->eraseFromParent();
}
// Remove the (now dead) store and alloca.
Info.OnlyStore->eraseFromParent();
LBI.deleteValue(Info.OnlyStore);
@ -418,6 +420,10 @@ void PromoteMem2Reg::run() {
// The alloca has been processed, move on.
RemoveFromAllocasList(AllocaNum);
// The alloca's debuginfo can be removed as well.
if (DbgDeclareInst *DDI = Info.DbgDeclare)
DDI->eraseFromParent();
++NumLocalPromoted;
continue;
}
@ -493,7 +499,11 @@ void PromoteMem2Reg::run() {
A->eraseFromParent();
}
// Remove alloca's dbg.declare instrinsics from the function.
for (unsigned i = 0, e = AllocaDbgDeclares.size(); i != e; ++i)
if (DbgDeclareInst *DDI = AllocaDbgDeclares[i])
DDI->eraseFromParent();
// Loop over all of the PHI nodes and see if there are any that we can get
// rid of because they merge all of the same incoming values. This can
// happen due to undef values coming into the PHI nodes. This process is