[PATCH] D19268: [DAGCombiner] Do not remove the load of stored values when optimizations are disabled

[Marianne Mailhot-Sarrasin via llvm-commits]

mamai retitled this revision from "[DAGCombiner] Skip folding constants when optimizations are disabled" to "[DAGCombiner] Do not remove the load of stored values when optimizations are disabled".
mamai updated this revision to Diff 54360.

Repository:
  rL LLVM

http://reviews.llvm.org/D19268

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp

Index: lib/CodeGen/SelectionDAG/DAGCombiner.cpp
===================================================================
--- lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -9998,7 +9998,8 @@
   // value.
   // TODO: Handle store large -> read small portion.
   // TODO: Handle TRUNCSTORE/LOADEXT
-  if (ISD::isNormalLoad(N) && !LD->isVolatile()) {
+  if (OptLevel != CodeGenOpt::None && 
+    ISD::isNormalLoad(N) && !LD->isVolatile()) {
     if (ISD::isNON_TRUNCStore(Chain.getNode())) {
       StoreSDNode *PrevST = cast<StoreSDNode>(Chain);
       if (PrevST->getBasePtr() == Ptr &&


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