Revert "[Debuginfo][LSR] Add salvaging variadic dbg.value intrinsics …

…[2/2]" This reverts commit 3f2b76e.
llvm · Apr 28, 2022 · cd5f9ef · cd5f9ef
1 parent 90dba83
commit cd5f9ef
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Showing 4 changed files with 91 additions and 468 deletions.
diff --git a/llvm/include/llvm/Analysis/ScalarEvolution.h b/llvm/include/llvm/Analysis/ScalarEvolution.h
@@ -545,10 +545,6 @@ class ScalarEvolution {
   /// Return true if the SCEV expression contains an undef value.
   bool containsUndefs(const SCEV *S) const;
 
-  /// Return true if the SCEV expression contains a Value that has been
-  /// optimised out and is now a nullptr.
-  bool containsErasedValue(const SCEV *S) const;
-
   /// Return a SCEV expression for the full generality of the specified
   /// expression.
   const SCEV *getSCEV(Value *V);

diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -12688,15 +12688,6 @@ bool ScalarEvolution::containsUndefs(const SCEV *S) const {
   });
 }
 
-// Return true when S contains a value that is a nullptr.
-bool ScalarEvolution::containsErasedValue(const SCEV *S) const {
-  return SCEVExprContains(S, [](const SCEV *S) {
-    if (const auto *SU = dyn_cast<SCEVUnknown>(S))
-      return SU->getValue() == nullptr;
-    return false;
-  });
-}
-
 /// Return the size of an element read or written by Inst.
 const SCEV *ScalarEvolution::getElementSize(Instruction *Inst) {
   Type *Ty;