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-rw-r--r--llvm/lib/Transforms/Scalar/ADCE.cpp19
1 files changed, 0 insertions, 19 deletions
diff --git a/llvm/lib/Transforms/Scalar/ADCE.cpp b/llvm/lib/Transforms/Scalar/ADCE.cpp
index c64aacbb8db..5b467dc9fe1 100644
--- a/llvm/lib/Transforms/Scalar/ADCE.cpp
+++ b/llvm/lib/Transforms/Scalar/ADCE.cpp
@@ -262,25 +262,6 @@ void AggressiveDeadCodeElimination::initialize() {
continue;
auto *BB = BBInfo.BB;
if (!PDT.getNode(BB)) {
- markLive(BBInfo.Terminator);
- continue;
- }
- for (auto *Succ : successors(BB))
- if (!PDT.getNode(Succ)) {
- markLive(BBInfo.Terminator);
- break;
- }
- }
-
- // Mark blocks live if there is no path from the block to the
- // return of the function or a successor for which this is true.
- // This protects IDFCalculator which cannot handle such blocks.
- for (auto &BBInfoPair : BlockInfo) {
- auto &BBInfo = BBInfoPair.second;
- if (BBInfo.terminatorIsLive())
- continue;
- auto *BB = BBInfo.BB;
- if (!PDT.getNode(BB)) {
DEBUG(dbgs() << "Not post-dominated by return: " << BB->getName()
<< '\n';);
markLive(BBInfo.Terminator);
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