[llvm] Revert "[DSE] Enable initializes improvement" (PR #119590)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Haopeng Liu (haopliu)

<details>
<summary>Changes</summary>

Reverts llvm/llvm-project#<!-- -->119116

---
Full diff: https://github.com/llvm/llvm-project/pull/119590.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp (+2-2) 


``````````diff
diff --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
index 778f83b7925691..09e8301b772d96 100644
--- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -164,9 +164,9 @@ static cl::opt<bool>
     OptimizeMemorySSA("dse-optimize-memoryssa", cl::init(true), cl::Hidden,
                       cl::desc("Allow DSE to optimize memory accesses."));
 
-// TODO: remove this flag.
+// TODO: turn on and remove this flag.
 static cl::opt<bool> EnableInitializesImprovement(
-    "enable-dse-initializes-attr-improvement", cl::init(true), cl::Hidden,
+    "enable-dse-initializes-attr-improvement", cl::init(false), cl::Hidden,
     cl::desc("Enable the initializes attr improvement in DSE"));
 
 //===----------------------------------------------------------------------===//

``````````

</details>


https://github.com/llvm/llvm-project/pull/119590